Jun 2026 Add-on acquisition Nordic Climate Kool It Services — — Jun 2026 Majority stake Team First Home Services Hall's Rooter & Plumbing Grove Mountain Partners — Jun 2026 Majority stake Mubadala Investment Company Service Logic — — May 2026 Minority stake Apollo Global Management Apex Service Partners Alpine Investors $2B reported as reported by homepros.news May 2026 Add-on acquisition Foundral A. Hattersley & Sons McNally Capital — May 2026 Add-on acquisition Rocket Group TLS Air Conditioning & Insulation — — May 2026 Add-on acquisition Rocket Group True Blue Mechanical — — May 2026 Add-on acquisition Redwood Services Brothers Plumbing, Heating & Electric — — May 2026 Add-on acquisition Redwood Services Sierra Air Conditioning and Plumbing — — May 2026 Add-on acquisition Redwood Services Sierra Platform — $220M reported as reported by homepros.news May 2026 Add-on acquisition Rocket Group Roadrunner Plumbing & Air — — May 2026 Add-on acquisition Sylvester & Cockrum Mechanical Systems Technology Inc. Trinity Hunt Partners — Apr 2026 Add-on acquisition United Building Solutions McCarl's Services Inc. — — Apr 2026 Add-on acquisition Harrell-Fish Ecofriendly Mechanical — — Apr 2026 Add-on acquisition Nordic Climate Ten Have Installatie BV — — Apr 2026 Add-on acquisition Thermogenics Inc. Prime Boiler Services — — Mar 2026 Add-on acquisition Perfect Climate Heating, Air & Plumbing Lewis Plumbing, Heating, & AC — — Feb 2026 Add-on acquisition Southern HVAC (Southern Home Services) Dunn's HVAC, Plumbing & Electrical — — Feb 2026 Majority stake Blackstone (BXPE) Champions Group Odyssey Investment Partners $2.5B reported total consideration · approximate as reported by hvacknowitall.com Feb 2026 Exit Blackstone (BXPE) Champions Group Odyssey Investment Partners — Feb 2026 Majority stake Eiffage Énergie Systèmes Quercy Réfrigération — — Feb 2026 Majority stake Eiffage SA Quercy Réfrigération — — Feb 2026 Majority stake Blackstone Champions Group — $2.5B reported total consideration as reported by homepros.news Jan 2026 Add-on acquisition United Building Solutions DFW Mechanical Group AE Industrial Partners — Jan 2026 Platform creation United Building Solutions Total Comfort Solutions AE Industrial Partners — Jan 2026 Add-on acquisition Champions Group Lex Cooling, Heating, Plumbing & Electrical — — Jan 2026 Add-on acquisition Sila Services Bonsky Heating & Cooling — — Jan 2026 Add-on acquisition Sila Services Coblentz Plumbing Solutions — — Jan 2026 Add-on acquisition Sila Services NEOH — — Jan 2026 Add-on acquisition Sila Services Simpson Heating & Air — — Jan 2026 Majority stake ABM — — $275M reported total consideration · approximate as reported by facilityexecutive.com Jan 2026 Majority stake Caverion Denmark GK Danmark A/S — — Jan 2026 Majority stake Caverion Denmark Vagns VVS A/S — — Jan 2026 Add-on acquisition Automated Logic CCG Automation — — Jan 2026 Add-on acquisition Carrier CCG Automation — — Jan 2026 Majority stake Legence Corp. The Bowers Group — $325M reported total consideration · partial consideration as reported by achrnews.com Jan 2026 Ipo — Legence Corp. — — Dec 2025 Majority stake Leap Partners Paradise Home Services — — Dec 2025 Platform creation Tendra Technical Services Coat Facilities Group Triton — Dec 2025 Platform creation Tendra Technical Services Fletchers Engineering Triton — Dec 2025 Platform creation Tendra Technical Services James Mercer Group Triton — Dec 2025 Add-on acquisition Nordic Climate Aircon Maintenance — — Dec 2025 Add-on acquisition Nordic Climate Cactus Mechanical — — Dec 2025 Add-on acquisition Nordic Climate Westcold Refrigeration — — Dec 2025 Majority stake Daikin Industries Ltd. Anh Nguyen Trading Technical Service — — Dec 2025 Add-on acquisition Rocket Group Bellaire Air Conditioning — — Dec 2025 Add-on acquisition Airtron Heating & Air Conditioning Sonoran Mechanical Systems Gamut Capital Management — Dec 2025 Add-on acquisition Airtron Heating & Air Conditioning Viccarone Heating & Air Conditioning Gamut Capital Management — Nov 2025 Add-on acquisition Mitie Group Forest Group — — Nov 2025 Add-on acquisition Rocket Group Veterans AC PHX — — Nov 2025 Majority stake Daikin Industries Ltd. Airmaster Corporation Pty Ltd. — — Oct 2025 Add-on acquisition Tweet Garot Mechanical Temperature Control — — Oct 2025 Majority stake SRS Distribution Inc. GMS Services, LLC — — Oct 2025 Majority stake The Home Depot GMS Services, LLC — — Oct 2025 Majority stake Viessmann Refrigeration Solutions Fri-Service — — Oct 2025 Add-on acquisition Sila Services Oxford Plumbing & Heating — — Oct 2025 Add-on acquisition Sunshine Plumbing and Gas North Central Florida Air Conditioning — — Oct 2025 Add-on acquisition Alltemp Air Republic Solutions — — Sep 2025 Platform creation Percheron Capital Solidaire HVAC & Energy Solutions Percheron Capital — Sep 2025 Platform creation Centre Partners TruTemp Holdings Centre Partners — Sep 2025 Platform creation — TruTemp Holdings — — Sep 2025 Add-on acquisition The SEER Group Tuscan Electric, Heating & Plumbing — — Sep 2025 Add-on acquisition Hercules Industries NSC Home Comfort Solutions — — Sep 2025 Add-on acquisition USA Hometown Experts Metro Plumbing, Heating & Air MSouth Equity Partners — Aug 2025 Add-on acquisition Any Hour Group Magic Electric Knox Lane — Aug 2025 Add-on acquisition Any Hour Group Perfect Plumbing & Air Knox Lane — Aug 2025 Add-on acquisition Apex Service Partners Owyhee Heating & Air Conditioning — — Aug 2025 Add-on acquisition Apex Service Partners Right Now Heating, Cooling and Plumbing — — Aug 2025 Add-on acquisition Intermountain Home Services Diamond Heating and Cooling Bestiage — Aug 2025 Add-on acquisition Intermountain Home Services Master Plumbing Bestige — Aug 2025 Add-on acquisition The SEER Group K-F Electric — — Aug 2025 Add-on acquisition The SEER Group Veterans Plumbing — — Aug 2025 Add-on acquisition The SEER Group Western Heating and Air — — Aug 2025 Add-on acquisition Western Heating and Air Veterans Plumbing — — Aug 2025 Majority stake Apleona Corrigenda — — Aug 2025 Add-on acquisition Automated Logic Control Solutions Ltd. LLC — — Jul 2025 Add-on acquisition Daikin Airconditioning UK Robert Heath Heating — — Jul 2025 Add-on acquisition Daikin Airconditioning UK Saltire Facilities Management Ltd — — Jul 2025 Add-on acquisition Nordic Climate Coolserve — — Jul 2025 Add-on acquisition Caverion Johnson Controls Finland — — Jul 2025 Add-on acquisition Sila Services My Plumber Plus — — Jul 2025 Add-on acquisition Caverion Lepuschitz Kältetechnik GmbH — — Jun 2025 Add-on acquisition Smart Care Mr. C Refrigeration Inc. — — Jun 2025 Add-on acquisition Champions Group Bee’s Plumbing and Heating — — Jun 2025 Add-on acquisition Wrench Group Champions Group — — Jun 2025 Add-on acquisition Wrench Group Easy A/C — — Jun 2025 Add-on acquisition Sila Services Live Free Heating, Cooling & Electric — — Jun 2025 Platform creation Air Pros USA R30 Brands Exuma Capital Partners — Jun 2025 Majority stake Anthony Perera Air Pros USA Exuma Capital Partners — Jun 2025 Majority stake Anthony Perera Drain Genie Exuma Capital Partners — Jun 2025 Majority stake Anthony Perera Personalized Power Exuma Capital Partners — Jun 2025 Add-on acquisition Exuma Capital Partners Drain Genie — — Jun 2025 Add-on acquisition Exuma Capital Partners Personalized Power — — Jun 2025 Add-on acquisition Champions Group McAfee Heating and Air Conditioning Odyssey Investment Partners — May 2025 Majority stake Peter De Baptiste Joe Cole Plumbing — — May 2025 Add-on acquisition Redwood Services Guaranteed Service — — May 2025 Platform creation NexCore Alliance Group — — May 2025 Platform creation NexCore Pratt & Smith — — May 2025 Platform creation NexCore Ryan Plumbing & Heating — — May 2025 Add-on acquisition Jay’s Heating, Air & Plumbing V & H Heating & Cooling — — May 2025 Majority stake Elias Yusef Hot Water Now — — May 2025 Add-on acquisition Automated Logic Logical Building Group Pty Ltd — — May 2025 Add-on acquisition Carrier Logical Building Group Pty Ltd — — Apr 2025 Add-on acquisition Koelplan All Climate BV — — Apr 2025 Add-on acquisition Southern HVAC (Southern Home Services) Ultra Heating & Cooling — — Apr 2025 Add-on acquisition Mission Plumbing, Heating and Cooling Ultra Heating & Cooling — — Apr 2025 Add-on acquisition Southern Home Services Ultra Heating & Cooling — — Apr 2025 Add-on acquisition Del-Air McGowan's Heating & Air Conditioning — — Mar 2025 Add-on acquisition Del-Air Keystone Energy & Power Corp. — — Mar 2025 Add-on acquisition The SEER Group Kilowatt Heating, Air Conditioning and Electric — — Mar 2025 Add-on acquisition Walker ClimateCare Morrisburg Plumbing and Heating — — Mar 2025 Add-on acquisition Walker ClimateCare TRS Heating & Cooling ClimateCare — — Mar 2025 Add-on acquisition Airtron Heating & Air Conditioning Sierra Air Conditioning Inc. Gamut Capital Management — Mar 2025 Add-on acquisition Airtron Heating & Air Conditioning Sierra Air Conditioning of Idaho LLC Gamut Capital Management — Mar 2025 Add-on acquisition Airtron Heating & Air Conditioning Sierra Air (Reno) Gamut Capital Management — Mar 2025 Add-on acquisition Airtron Heating & Air Conditioning Silverado Mechanical LLC Gamut Capital Management — Mar 2025 Add-on acquisition Leap Partners Master Plumbers Heating and Cooling — — Mar 2025 Add-on acquisition Leap Partners Premier Indoor Comfort Systems — — Mar 2025 Majority stake Alon Debbi Sunshine Plumbing and Gas — — Mar 2025 Majority stake Alon Debbi Sunshine Services — — Mar 2025 Add-on acquisition Sunshine Services North Central Florida Air Conditioning — — Mar 2025 Majority stake Yoni Benimetzky Sunshine Plumbing and Gas — — Mar 2025 Majority stake Yoni Benimetzky Sunshine Services — — Mar 2025 Bankruptcy — Air Pros USA — Feb 2025 Add-on acquisition Del-Air Gator Air Conditioning — — Feb 2025 Add-on acquisition Del-Air Plumbing, Air Conditioning and Electric Gator Air Conditioning — — Feb 2025 Add-on acquisition NexCore Lowry Mechanical — — Feb 2025 Platform creation NexCore Sylvester & Cockrum — — Feb 2025 Add-on acquisition Sylvester & Cockrum Lowry Mechanical — — Feb 2025 Add-on acquisition Del-Air Heating, Air Conditioning & Refrigeration Gator Air Conditioning Astara Capital Providers — Jan 2025 Add-on acquisition Exigent Group Smith-Boughan Mechanical — — Jan 2025 Add-on acquisition Smith-Boughan Mechanical Premier Mechanical Huron Capital Partners — Jan 2025 Add-on acquisition Sila Services Sullivan Super Service — — Dec 2024 Add-on acquisition Sila Services John Nugent & Sons — — Dec 2024 Add-on acquisition Sila Services The Comfort Group — — Dec 2024 Add-on acquisition Bart's Christmas — — Dec 2024 Add-on acquisition Custom Air Conditioning Ltd. I.C.R. Air Inc. CAI Capital Partners — Dec 2024 Add-on acquisition Custom Air Conditioning Ltd. Power Plus Electric Ltd. CAI Capital Partners — Dec 2024 Add-on acquisition The Waldinger Corporation Aupperle Plumbing and Heating, Inc. — — Nov 2024 Add-on acquisition Sila Services New Berlin Heating & Air Conditioning — — Nov 2024 Add-on acquisition Del-Air Colman Heating & Air — — Nov 2024 Add-on acquisition Del-Air Plumbing, Air Conditioning and Electric Colman Heating & Air Astara Capital Partners — Nov 2024 Majority stake Goldman Sachs Alternatives Private Equity Sila Services Morgan Stanley Capital Partners — Oct 2024 Add-on acquisition Daikin Applied Varitec Solutions — — Oct 2024 Majority stake — Varitec Solutions — — Oct 2024 Add-on acquisition Valley Air Heating, Cooling, & Plumbing Excel Heating & Cooling — — Oct 2024 Add-on acquisition CoolSys Mechanical Engineering & Construction Corporation — — Oct 2024 Add-on acquisition Elevate Home Services St. Clair's Custom Air — — Oct 2024 Add-on acquisition Leap Partners Appalachian Heating — — Sep 2024 Add-on acquisition Sila Services A to Z Dependable Services — — Sep 2024 Add-on acquisition Del-Air American Residential Services (ARS/Rescue Rooter) Astara Capital Partners — Sep 2024 Add-on acquisition Del-Air Plumbing, Air Conditioning and Electric ARS/Rescue Rooter Vero Beach Astara Capital Partners — Sep 2024 Add-on acquisition Total Comfort Group Victor's Air Conditioning Co. Inc. — — Aug 2024 Add-on acquisition Sila Services Allied Experts — — Aug 2024 Add-on acquisition Southern Home Services Elite Electric, Plumbing & Air — — Aug 2024 Add-on acquisition Southern HVAC (Southern Home Services) Elite Electric, Plumbing & Air — — Aug 2024 Majority stake Gamut Capital Management Airtron Heating & Air Conditioning — — Aug 2024 Add-on acquisition Marsden Services Marsden Mechanical — — Aug 2024 Add-on acquisition Southern Home Services Presidential Heating & Air Conditioning Inc. — — Jul 2024 Add-on acquisition Marsden Mechanical Feldkamp Enterprises — — Jul 2024 Add-on acquisition Marsden Mechanical Metal Craft — — Jul 2024 Platform creation The Grasshopper Group Hummingbird Heating & Cooling Amanda Triolo — Jul 2024 Platform creation — Exigent Group — — Jul 2024 Add-on acquisition Quality Heating, Cooling, Plumbing & Electric Frost Air Services — — Jul 2024 Add-on acquisition Sila Services Gary & Sons Inc. — — Jun 2024 Add-on acquisition MechCan Pope & Sons — — Jun 2024 Add-on acquisition CoolSys C.E. Holt Refrigeration — — Jun 2024 Add-on acquisition CoolSys (formerly Source Refrigeration & HVAC) Universal Refrigeration Inc. — — Jun 2024 Add-on acquisition CoolSys Universal Refrigeration Inc. — — Jun 2024 Add-on acquisition Southeast Mechanical Climate Design Home Services — — Jun 2024 Add-on acquisition Right Time Group of Companies Belyea Bros — — Jun 2024 Add-on acquisition Refrigeration Design & Service Inc. (RD&S) GMS Services, LLC Southfield Capital — May 2024 Add-on acquisition Southern Home Services David Gray Electrical, Plumbing, Heating & Air — — May 2024 Add-on acquisition Southern HVAC (Southern Home Services) David Gray Electrical, Plumbing, Heating & Air — — Apr 2024 Add-on acquisition HomeX Services Group Deluxe Plumbing & Heating — — Apr 2024 Add-on acquisition Sila Services Essential Power Systems — — Apr 2024 Add-on acquisition Caverion Climacraft — — Feb 2024 Add-on acquisition Sila Services Ainsley Heating & Cooling — — Feb 2024 Add-on acquisition PremiStar Mercury Mechanical — — Feb 2024 Add-on acquisition Sila Services ECS Comfort Heating & Cooling — — Jan 2024 Majority stake Daikin Air Conditioning UK Ltd. Robert Heath Heating — — Jan 2024 Add-on acquisition PremiStar Encom — — Jan 2024 Add-on acquisition Apex Service Partners Frontier Service Partners Alpine Investors — Jan 2024 Add-on acquisition Southern HVAC (Southern Home Services) ACE Solves It All — — Jan 2024 Add-on acquisition PremiStar Colorado Mechanical Systems — — Jan 2024 Add-on acquisition Seacoast Service Partners Putnam Mechanical White Wolf Capital Group — Jan 2024 Add-on acquisition CoolSys ABC Refrigeration & HVAC — — Jan 2024 Add-on acquisition CoolSys Arjae HVAC and Mechanical Services — — Jan 2024 Add-on acquisition CoolSys Building Air Services — — Jan 2024 Add-on acquisition CoolSys Triangle Refrigeration — — Jan 2024 Add-on acquisition HB McClure Company Air Solutions LLC — — Jan 2024 Add-on acquisition NearU Services 2nd Wind Heating & Air Conditioning — — Jan 2024 Add-on acquisition Pueblo Mechanical & Controls CFM Mechanical LLC — — Jan 2024 Add-on acquisition Pueblo Mechanical & Controls Innovative Mechanical Systems — — Jan 2024 Add-on acquisition Pueblo Mechanical & Controls Newgaard Mechanical Inc. — — Jan 2024 Add-on acquisition Pueblo Mechanical & Controls Niemeyer Brothers Plumbing Inc. — — Jan 2024 Add-on acquisition R.S. Andrews Covert Aire — — Jan 2024 Add-on acquisition R.S. Andrews Plumbit Services — — Jan 2024 Add-on acquisition Smart Care Equipment Solutions Advanced Mechanical Plus — — Jan 2024 Add-on acquisition The SEER Group Bower Mechanical — — Jan 2024 Add-on acquisition The SEER Group Hassler Heating and Air Conditioning — — Jan 2024 Add-on acquisition The SEER Group Specialty Heating and Cooling — — Jan 2024 Add-on acquisition The SEER Group The Barton Boys Heating and Air Conditioning — — Jan 2024 Add-on acquisition Wrench Group Buckeye Heating & Cooling — — Jan 2024 Add-on acquisition Wrench Group NexGen Air Conditioning & Plumbing — — Jan 2024 Add-on acquisition Wrench Group Parker & Sons — — Dec 2023 Add-on acquisition Leap Partners Conditioned Air Solutions of Huntsville — — Dec 2023 Add-on acquisition Daikin Applied Europe Brooktherm Refrigeration — — Dec 2023 Majority stake Lennox International Arpi's Industries — — Nov 2023 Add-on acquisition MechCan B.R.'s Plumbing & Heating Inc. — — Nov 2023 Add-on acquisition MechCan Comfort Zone Heating & Air Conditioning — — Oct 2023 Continuation fund — Apex Service Partners Alpine Investors $3.4B disclosedas reported by businesswire.com Oct 2023 Add-on acquisition Sila Services T-Mark Plumbing, Heating, Cooling & Electric — — Oct 2023 Add-on acquisition BR's Plumbing and Heating G.C. Lounsbury — — Oct 2023 Add-on acquisition Leap Partners Paradise Home Services — — Oct 2023 Add-on acquisition Leap Partners Tim Ferguson Plumbing, Air, and Electric — — Oct 2023 Add-on acquisition MechCan G.C. Lounsbury — — Oct 2023 Add-on acquisition Seacoast Service Partners United Plumbing of Southwest Florida White Wolf Capital Group — Sep 2023 Add-on acquisition Southern HVAC (Southern Home Services) Presidential Heating & Air Conditioning Inc. — — Sep 2023 Add-on acquisition Horizon Services (Horizon Group Holdings) Gervais Mechanical — — Sep 2023 Add-on acquisition Strikepoint Group Holdings Gervais Mechanical — — Aug 2023 Add-on acquisition CoolSys (formerly Source Refrigeration & HVAC) Lima Company — — Aug 2023 Add-on acquisition Daikin Comfort Technologies InControl — — Aug 2023 Add-on acquisition Daikin Comfort Technologies Integrated Systems and Controls, LLC — — Aug 2023 Add-on acquisition Seacoast Service Partners Cool By Design White Wolf Capital Group — Aug 2023 Add-on acquisition CoolSys Lima Company — — Jul 2023 Add-on acquisition Right Time Group of Companies Knight Plumbing, Heating & Air Conditioning Gryphon Investors — Jul 2023 Add-on acquisition Leap Partners Aire Solutions — — Jul 2023 Add-on acquisition Leap Partners Comfort Design — — Jul 2023 Add-on acquisition Leap Partners Premier Indoor Comfort Systems — — Jul 2023 Add-on acquisition AirReps InControl — — Jul 2023 Add-on acquisition AirReps Integrated Systems and Controls, LLC — — Jun 2023 Add-on acquisition American Residential Services (ARS/Rescue Rooter) Tarpy Plumbing, Heating & Air — — Jun 2023 Add-on acquisition Southern HVAC (Southern Home Services) Pro-Tech Air Conditioning & Plumbing — — Jun 2023 Add-on acquisition Champions Group Seatown Electric, Plumbing, Heating & Air Odyssey Investment Partners — May 2023 Majority stake Sojitz Corporation Ellis Air Group — — May 2023 Add-on acquisition Sila Services Park Ridge Unique Indoor Comfort — — May 2023 Add-on acquisition Thermogenics Inc. Industrial Engineering — — May 2023 Add-on acquisition Right Time Group of Companies Thomson Industries Ltd. Gryphon Investors — May 2023 Platform creation Unique Indoor Comfort Moncrief Heating & Air Grove Mountain Partners — May 2023 Platform creation White Wolf Capital Group Seacoast Service Partners White Wolf Capital Group — May 2023 Add-on acquisition Daikin Applied Carroll Air Systems — — Apr 2023 Add-on acquisition M.C. Dean International Energy Conservation Systems Inc. — — Apr 2023 Add-on acquisition M.C. Dean International Energy Conservation Systems Inc. (IEC Systems) — — Apr 2023 Add-on acquisition Sila Services Absolute Air Services — — Apr 2023 Add-on acquisition The Legacy Companies Buehler Air Conditioning — — Apr 2023 Add-on acquisition Champions Group Fetch-A-Tech Odyssey Investment Partners — Apr 2023 Add-on acquisition Systemair AB SCS Engineering Ltd — — Apr 2023 Add-on acquisition Systemair AB Smoke Control Services Ltd — — Apr 2023 Add-on acquisition Thermogenics Inc. Plains Mechanical Services — — Apr 2023 Add-on acquisition Right Time Group of Companies Oosterveld Heating and Air Conditioning Gryphon Investors — Apr 2023 Add-on acquisition The SEER Group Border Sheet Metal & Heating — — Apr 2023 Majority stake Genstar Capital The SEER Group Genstar Capital — Mar 2023 Add-on acquisition Exigent Group JPG Plumbing & Mechanical Services Inc. Huron Capital Partners — Mar 2023 Add-on acquisition Exigent Group ThermaServe Inc. Huron Capital Partners — Mar 2023 Add-on acquisition Five Star Plumbing, Heating and Cooling George M. Hill & Sons Inc. — — Mar 2023 Add-on acquisition Southern HVAC (Southern Home Services) George M. Hill & Sons Inc. — — Mar 2023 Platform creation Wrench Group Coolray Heating & Cooling — — Mar 2023 Add-on acquisition Triple Play Home Services Comfy Bear Plumbing, Heating, and Air — — Feb 2023 Add-on acquisition Horizon Services (Horizon Group Holdings) Weeks Service Company — — Feb 2023 Add-on acquisition Strikepoint Group Holdings Weeks Service Company — — Feb 2023 Add-on acquisition Leap Partners A1 Heating & Air Conditioning — — Feb 2023 Add-on acquisition Leap Partners Engineered Heating and Air — — Feb 2023 Add-on acquisition FirstCall Mechanical JAX Refrigeration SkyKnight Capital — Feb 2023 Add-on acquisition FirstCall Mechanical STR Mechanical SkyKnight Capital — Feb 2023 Add-on acquisition FirstCall Mechanical Technical Services SkyKnight Capital — Feb 2023 Add-on acquisition FirstCall Mechanical TimCo Heating and Air SkyKnight Capital — Jan 2023 Add-on acquisition Legence Corp. CMTA Blackstone (BXPE) — Jan 2023 Add-on acquisition Legence Corp. KLOK Group Blackstone (BXPE) — Jan 2023 Add-on acquisition Legence Corp. Shadpour Consulting Engineers Inc. (SC Engineers) Blackstone (BXPE) — Jan 2023 Add-on acquisition Legence Corp. Therma Holdings LLC Blackstone (BXPE) — Jan 2023 Add-on acquisition Legence Corp. Trinity Process Solutions Inc. Blackstone (BXPE) — Jan 2023 Add-on acquisition Goettl Air Conditioning & Plumbing Nevada Heating, Cooling, Plumbing, Fireplace Inc. — — Jan 2023 Add-on acquisition User Friendly Home Services Sal’s Heating & Cooling — — Jan 2023 Add-on acquisition Unique Indoor Comfort All-Phase Electrical Grove Mountain Partners — Dec 2022 Add-on acquisition Champions Group SWAN Heating & Air Conditioning — — Dec 2022 Add-on acquisition Horizon Services (Horizon Group Holdings) Air McCall Inc. — — Dec 2022 Add-on acquisition Strikepoint Group Holdings Air McCall Inc. — — Dec 2022 Add-on acquisition Right Time Group of Companies Dunn Heating ClimateCare Gryphon Investors — Dec 2022 Exit Ace Hardware Unique Indoor Comfort Grove Mountain Partners — Dec 2022 Majority stake Ken Haines Coolray Heating & Cooling — — Dec 2022 Add-on acquisition Unique Indoor Comfort Carolina Custom Air Grove Mountain Partners — Dec 2022 Add-on acquisition Unique Indoor Comfort Dick Hill & Son Grove Mountain Partners — Dec 2022 Add-on acquisition Unique Indoor Comfort Rye Heating and Air Conditioning Grove Mountain Partners — Dec 2022 Add-on acquisition Goettl Air Conditioning & Plumbing 4 Seasons Heating & Cooling — — Dec 2022 Add-on acquisition Goettl Air Conditioning & Plumbing SoCal Airflow Pros — — Dec 2022 Add-on acquisition Air Pros USA East Coast Mechanical — — Dec 2022 Add-on acquisition Air Pros USA East Coast Mechanical (ECM Air Conditioning) — — Dec 2022 Platform creation P1 Service Group Sky Heating — — Dec 2022 Add-on acquisition Right Time Group of Companies Northern Air & Mechanical Systems Gryphon Investors — Nov 2022 Add-on acquisition Champions Group Service Wizard Heating & Air Conditioning Odyssey Investment Partners — Nov 2022 Add-on acquisition Air Pros USA Universal Air and Heat — — Nov 2022 Add-on acquisition Right Time Group of Companies 669-Heat Gryphon Investors — Nov 2022 Minority stake — Wrench Group — — Oct 2022 Add-on acquisition User Friendly Home Services AccuTemp Heating & Air Conditioning — — Oct 2022 Add-on acquisition User Friendly Home Services Efficient Air Heating and Cooling — — Oct 2022 Add-on acquisition Strikepoint Group Holdings IERNA Heating, Cooling, and Plumbing — — Oct 2022 Add-on acquisition Strikepoint Group Holdings Mr. AC Cooling & Heating — — Oct 2022 Add-on acquisition Strikepoint Group Holdings Sansone Air Conditioning — — Oct 2022 Majority stake Woolley Home Solutions Reel-Strong Heating & Cooling — — Oct 2022 Majority stake Yanmar America Controlled Air, Inc. — — Sep 2022 Add-on acquisition Rite Way Heating, Cooling & Plumbing Southern Arizona Plumbing — — Sep 2022 Add-on acquisition Tech24 Allied Service Group HCI Equity Partners — Sep 2022 Add-on acquisition Service Experts Stallion Heating, Plumbing & Air Conditioning — — Aug 2022 Add-on acquisition American Air Filter Co. Inc. National Air Filter Service Company of New Jersey — — Aug 2022 Add-on acquisition Air Pros USA CM Heating — — Aug 2022 Add-on acquisition Heartland Home Services Pat's Heating and Air Conditioning — — Aug 2022 Add-on acquisition Air Pros USA Dream Team Heating and Air — — Aug 2022 Add-on acquisition PremiStar Global Mechanical Services — — Aug 2022 Add-on acquisition The SEER Group Evergreen Gas, Heating & Cooling — — Aug 2022 Add-on acquisition Heartland Home Services Hurlburt Heating, AC & Plumbing — — Aug 2022 Add-on acquisition Wrench Group Superior Service — — Aug 2022 Platform creation Huron Capital Partners Exigent Group Huron Capital Partners — Aug 2022 Majority stake OMERS Private Equity Pueblo Mechanical & Controls Huron Capital Partners — Jul 2022 Add-on acquisition Southern HVAC Allen's Air Conditioning & Heating — — Jul 2022 Add-on acquisition Air Pros USA Airforce Heating and Air — — Jul 2022 Add-on acquisition Air Pros USA Dallas Plumbing Company — — Jul 2022 Add-on acquisition Easy Ice Thrifty Air Conditioning and Refrigeration — — Jul 2022 Add-on acquisition Southern HVAC Pro Plumbing Services LLC — — Jul 2022 Add-on acquisition Southern HVAC (Southern Home Services) Pro Plumbing Services LLC — — Jun 2022 Add-on acquisition Reedy Industries Vorpagel Service Inc. — — Jun 2022 Add-on acquisition Heartland Home Services Thielmann Group — — Jun 2022 Majority stake Ace Hardware Unique Indoor Comfort Grove Mountain Partners — Jun 2022 Add-on acquisition Unique Indoor Comfort A-Total Plumbing Grove Mountain Partners — Jun 2022 Platform creation Unique Indoor Comfort Canella Heating & Air Conditioning Grove Mountain Partners — Jun 2022 Platform creation Unique Indoor Comfort Clay’s Climate Control Grove Mountain Partners — Jun 2022 Platform creation Unique Indoor Comfort Detmer and Sons Inc. Grove Mountain Partners — Jun 2022 Platform creation Unique Indoor Comfort Moncrief Heating and Air Conditioning Grove Mountain Partners — Jun 2022 Platform creation Unique Indoor Comfort Werley Heating & Air Conditioning Grove Mountain Partners — Jun 2022 Add-on acquisition Heartland Home Services Williams Heating and Cooling — — May 2022 Add-on acquisition Horizon Services (Horizon Group Holdings) Pinellas Comfort Systems — — May 2022 Add-on acquisition Strikepoint Group Holdings Pinellas Comfort Systems — — May 2022 Platform creation Strikepoint Group Holdings Air Performance LLC — — May 2022 Platform creation Strikepoint Group Holdings Elite Heating & Air — — May 2022 Platform creation Strikepoint Group Holdings Paradise Air — — May 2022 Add-on acquisition Strikepoint Group Holdings Horizon Services (Horizon Group Holdings) — — May 2022 Add-on acquisition Strikepoint Group Holdings Phillips Air Care — — May 2022 Add-on acquisition Southern HVAC AirNow Cooling & Heating — — May 2022 Add-on acquisition Southern HVAC (Southern Home Services) AirNow Cooling & Heating — — May 2022 Add-on acquisition The SEER Group J. A. Bertsch Heating & Cooling — — May 2022 Majority stake Partners Group Reedy Industries Audax Private Equity — May 2022 Add-on acquisition American Residential Services ESCO Heating, Air Conditioning, Plumbing, and Electrical — — May 2022 Add-on acquisition Gryphon Investors Right Time Group of Companies Clairvest Group — May 2022 Add-on acquisition Gryphon Investors Southern HVAC (Southern Home Services) — — Apr 2022 Add-on acquisition Heartland Home Services Blue Frost Heating & Cooling — — Apr 2022 Add-on acquisition Horizon Services (Horizon Group Holdings) Olson's Air Conditioning and Heating — — Apr 2022 Add-on acquisition Strikepoint Group Holdings Olson's Air Conditioning and Heating — — Apr 2022 Add-on acquisition Heartland Home Services Custom Mechanical — — Apr 2022 Add-on acquisition The SEER Group Terry’s Heating & Air Conditioning Inc. — — Apr 2022 Add-on acquisition Horizon Services (Horizon Group Holdings) Nicholson Plumbing, Heating & Air Conditioning — — Apr 2022 Add-on acquisition Strikepoint Group Holdings Nicholson Plumbing, Heating & Air Conditioning — — Apr 2022 Add-on acquisition The SEER Group Hassler Heating and Air Conditioning — — Apr 2022 Add-on acquisition Heartland Home Services Deljo Heating and Cooling — — Apr 2022 Add-on acquisition American Residential Services (ARS/Rescue Rooter) ESCO Heating, Air Conditioning, Plumbing, and Electric — — Apr 2022 Add-on acquisition Right Time Group of Companies Wardlaw Heating and Cooling Gryphon Investors — Apr 2022 Add-on acquisition Marsden Services Palen Kimball LLC — — Apr 2022 Add-on acquisition Marsden Services Signature Mechanical Inc. — — Mar 2022 Add-on acquisition Absolute Airflow BWR Heating and Cooling — — Mar 2022 Add-on acquisition NearU Services Ideal Services Heating & Cooling — — Mar 2022 Add-on acquisition Heartland Home Services Buckner's Heating and Cooling — — Mar 2022 Add-on acquisition NearU Services 2nd Wind Heating & Air Conditioning — — Mar 2022 Add-on acquisition Strada Services L&M Electric, Inc. — — Mar 2022 Add-on acquisition Resolute Industrial Holdings LLC Rocky Mountain Portable Cooling — — Mar 2022 Add-on acquisition Sila Services Heckeroth Plumbing & Heating — — Mar 2022 Add-on acquisition Reedy Industries Colorado Mechanical Systems — — Mar 2022 Add-on acquisition Right Time Group of Companies 360 Super Techs — — Mar 2022 Add-on acquisition Right Time Group of Companies The Comfort Group — — Mar 2022 Add-on acquisition User Friendly Home Services Legacy Heating & Air Conditioning, LLC — — Feb 2022 Add-on acquisition Air Pros USA Doug’s Service Company — — Feb 2022 Add-on acquisition The SEER Group First Call Heating & Cooling — — Feb 2022 Add-on acquisition The SEER Group Gropp Heating, Air, & Electric — — Feb 2022 Add-on acquisition The Kelvin Group Refrigeration Design & Service Inc. Southfield Capital — Feb 2022 Platform creation The Kelvin Group American Refrigeration Company Southfield Capital — Feb 2022 Platform creation The Kelvin Group American Refrigeration Company (ARC) Southfield Capital — Feb 2022 Platform creation The Kelvin Group HCG Associates Southfield Capital — Feb 2022 Platform creation The Kelvin Group Refrigeration Design & Service Inc. (RD&S) Southfield Capital — Feb 2022 Add-on acquisition Automated Logic Systemax Pty Ltd — — Feb 2022 Add-on acquisition Carrier Systemax Pty Ltd — — Jan 2022 Add-on acquisition Sila Services Boston Standard Company — — Jan 2022 Add-on acquisition Sila Services New England Ductless — — Jan 2022 Add-on acquisition Sila Services T-Mark Plumbing, Heating, Cooling & Electric — — Jan 2022 Add-on acquisition Enercare Home Services Service Experts — — Jan 2022 Add-on acquisition Enercare Home Services Syles Mechanical Services — — Jan 2022 Add-on acquisition Allen Service Lighten Up — — Jan 2022 Add-on acquisition Automated Logic Integrated Control Systems Inc — — Jan 2022 Add-on acquisition Carrier Integrated Control Systems Inc — — Jan 2022 Exit Action Furnace Direct Energy — — Jan 2022 Add-on acquisition CoolSys (formerly Source Refrigeration & HVAC) 1GNITE (Asset Recovery Solutions) Ares Management Corporation — Dec 2021 Add-on acquisition The SEER Group Aladdin Air Conditioning & Heating Inc. — — Dec 2021 Add-on acquisition Right Time Group of Companies Climate Air Heating & Air Conditioning — — Dec 2021 Add-on acquisition Williams Comfort Air Buckeye Heating & Cooling — — Dec 2021 Add-on acquisition Wrench Group Buckeye Heating & Cooling — — Dec 2021 Add-on acquisition Hiller Plumbing, Heating, Cooling & Electrical America's Plumbing & Sewer — — Dec 2021 Add-on acquisition Hiller Plumbing, Heating, Cooling & Electrical Chattanooga Heating & Air — — Dec 2021 Recapitalization Cortec Group Goettl Air Conditioning & Plumbing Cortec Group — Nov 2021 Add-on acquisition Custom Air Conditioning Ltd. Britech HVAC Ltd. CAI Capital Partners — Nov 2021 Add-on acquisition Murphy Company State Mechanical — — Nov 2021 Add-on acquisition The SEER Group Brower Mechanical — — Nov 2021 Add-on acquisition CoolSys Triangle Refrigeration — — Nov 2021 Majority stake Daikin Airconditioning France SAS Groupe BV — — Nov 2021 Majority stake Daikin Europe N.V. Groupe BV — — Nov 2021 Add-on acquisition CoolSys (formerly Source Refrigeration & HVAC) Triangle Refrigeration Ares Management Corporation — Nov 2021 Add-on acquisition American Refrigeration Company Global Mechanical Services — — Nov 2021 Add-on acquisition Bonney Boyd Plumbing, Inc. — — Nov 2021 Platform creation Bonney Big Air Heating & Air Conditioning — — Nov 2021 Add-on acquisition Caverion Bott Kälte-und Klimatechnik — — Oct 2021 Add-on acquisition Right Time Group of Companies furnaceguys Home Heating & Cooling Gryphon Investors — Oct 2021 Add-on acquisition Southern HVAC (Southern Home Services) The Plumbing & Air Service Company — — Oct 2021 Majority stake Gryphon Investors Southern HVAC MSouth Equity Partners — Oct 2021 Platform creation North American Essential Home Services (NAEHS) Right Time Group of Companies Gryphon Investors — Oct 2021 Platform creation North American Essential Home Services (NAEHS) Southern HVAC Gryphon Investors — Oct 2021 Majority stake Right Time Group of Companies Southern HVAC Gryphon Investors — Oct 2021 Add-on acquisition Sila Services Fahrenheit HVAC — — Sep 2021 Majority stake Arneg Group Contract Refrigeration — — Sep 2021 Majority stake Arneg Oceania Contract Refrigeration — — Sep 2021 Add-on acquisition Frontier Service Partners Haley Mechanical Imperial Capital Group Ltd. — Sep 2021 Majority stake Automated Logic Nlyte Software — — Sep 2021 Add-on acquisition Tech-24 Yukon Refrigeration HCI Equity Partners — Sep 2021 Platform creation Imperial Capital Group Ltd. Frontier Service Partners Imperial Capital Group Ltd. — Sep 2021 Add-on acquisition Bonney Plumbing, Electrical, Heating and Air Big Air Heating & Air Conditioning — — Sep 2021 Add-on acquisition Southern HVAC C.M. Mose & Son — — Sep 2021 Add-on acquisition The SEER Group Columbia NW Heating & Air Conditioning — — Sep 2021 Recapitalization Peak Rock Capital Air Pros USA Peak Rock Capital — Aug 2021 Add-on acquisition CoolSys T&O Refrigeration — — Aug 2021 Add-on acquisition CoolSys (formerly Source Refrigeration & HVAC) T&O Refrigeration — — Aug 2021 Add-on acquisition Right Time Group of Companies Anchor Home Comfort Gryphon Investors — Aug 2021 Add-on acquisition Wrench Group Boothe's Heating, Air & Plumbing — — Aug 2021 Add-on acquisition RPM International Inc. Pure Air Control Services, Inc. — — Aug 2021 Add-on acquisition Tremco Construction Products Group Pure Air Control Services, Inc. — — Jul 2021 Recapitalization — Reedy Industries — — Jul 2021 Add-on acquisition Right Time Group of Companies Haven Home ClimateCare — — Jul 2021 Add-on acquisition The SEER Group Western Heating & Air Conditioning — — Jul 2021 Minority stake Knox Lane Any Hour Group Knox Lane — Jul 2021 Recapitalization Partners Group PremiStar Partners Group Jul 2021 Add-on acquisition American Residential Services (ARS/Rescue Rooter) Total Comfort Group — — Jun 2021 Add-on acquisition Southern HVAC (Southern Home Services) Swift Services Heating, Cooling & Electrical — — Jun 2021 Add-on acquisition Southern HVAC A+ Heating & Cooling – Electrical — — Jun 2021 Add-on acquisition Right Time Group of Companies Romaniuk Heating and Air Conditioning Gryphon Investors — Jun 2021 Majority stake Rick Vazza John Padilla Plumbing — — Jun 2021 Add-on acquisition Right Time Group of Companies Comfort Masters Gryphon Investors — Jun 2021 Add-on acquisition Granite Comfort Green Air Care — — Jun 2021 Add-on acquisition Green Dot Home Services Island Mechanical Services — — Jun 2021 Majority stake John Wilson Wilson Plumbing and Heating — — May 2021 Majority stake Morgan Stanley Capital Partners Sila Services Morgan Stanley Capital Partners — May 2021 Add-on acquisition CoolSys (formerly Source Refrigeration & HVAC) Thermal Resource Sales and Supermarket Environment Services Company (TRS-SESCO) — — May 2021 Add-on acquisition CoolSys TRS-SESCO — — May 2021 Add-on acquisition Southern HVAC (Southern Home Services) Dial Plumbing and Air Conditioning — — May 2021 Add-on acquisition Resolute Industrial Holdings LLC All American Portable Air — — May 2021 Add-on acquisition Resolute Industrial Holdings LLC Mobile Air & Power Rentals — — May 2021 Add-on acquisition The SEER Group Sturm Heating & Air Conditioning — — May 2021 Add-on acquisition Climate Pros Precision Mechanical Contracting — — May 2021 Majority stake Rich Jordan Guarantee Plumbing — — Apr 2021 Add-on acquisition Southern HVAC Mission Plumbing, Heating and Cooling — — Apr 2021 Add-on acquisition Southern HVAC (Southern Home Services) Mission Plumbing, Heating and Cooling — — Apr 2021 Merger — HCG Associates — — Apr 2021 Add-on acquisition Southern HVAC Five Star Plumbing, Heating and Cooling — — Apr 2021 Add-on acquisition Southern HVAC (Southern Home Services) Five Star Plumbing, Heating and Cooling — — Apr 2021 Add-on acquisition CoolSys Duquette Refrigeration — — Apr 2021 Add-on acquisition Harris Companies HVAC Controls & Specialties — — Mar 2021 Add-on acquisition Horizon Services (Horizon Group Holdings) Hurley & David — — Mar 2021 Add-on acquisition Right Time Group of Companies AtlasCare Gryphon Investors — Mar 2021 Add-on acquisition Champions Group Sierra Air (Reno) Odyssey Investment Partners — Feb 2021 Add-on acquisition American Refrigeration Company Capitol Engineering Co. — — Feb 2021 Add-on acquisition American Refrigeration Company (ARC) Capitol Engineering Co. — — Feb 2021 Add-on acquisition Horizon Services (Horizon Group Holdings) Maitz Home Services — — Jan 2021 Add-on acquisition Gold Medal Service A-Absolute Plumbing, Heating, and Air — — Jan 2021 Add-on acquisition Horizon Services (Horizon Group Holdings) A-Absolute Plumbing, Heating, and Air — — Jan 2021 Add-on acquisition Jarboe's Plumbing, Heating and Cooling Pacific Plumbing — — Jan 2021 Add-on acquisition Horizon Services (Horizon Group Holdings) Eanes Heating & Air Conditioning — — Jan 2021 Majority stake Odyssey Investment Partners Champions Group — — Jan 2021 Add-on acquisition Flint Group Cranney Home Services — — Jan 2021 Add-on acquisition CoolSys (formerly Source Refrigeration & HVAC) C.E. Holt Refrigeration Ares Management Corporation — Jan 2021 Add-on acquisition CoolSys C.E. Holt Refrigeration — — Dec 2020 Add-on acquisition Southern HVAC Cunningham Associates Heating & Air Conditioning — — Dec 2020 Platform creation The Jordan Company Heartland Home Services The Jordan Company — Dec 2020 Add-on acquisition Absolute Air Flow Preferred Air Conditioning Heating and Plumbing — — Dec 2020 Add-on acquisition Air Pros USA One Source Home Service — — Nov 2020 Majority stake Blackstone Therma Holdings LLC Gemspring Capital — Nov 2020 Majority stake Blackstone (BXPE) Therma Holdings LLC Gemspring Capital — Nov 2020 Majority stake Leonard Green & Partners Service Logic Leonard Green & Partners — Nov 2020 Recapitalization OMERS Private Equity TurnPoint Services OMERS Private Equity — Oct 2020 Add-on acquisition HB Group William R. Nash Mechanical Contractors — — Oct 2020 Add-on acquisition Wrench Group Collins Comfort Masters — — Sep 2020 Add-on acquisition CoolSys Carolina Refrigeration Services Inc — — Sep 2020 Add-on acquisition Horizon Services (Horizon Group Holdings) Hutchinson Heating, Cooling, Plumbing, and Energy Services — — Sep 2020 Exit Horizon Services (Horizon Group Holdings) Hutchinson Heating, Cooling, Plumbing, and Energy Services — — Sep 2020 Majority stake GI Partners American Residential Services (ARS/Rescue Rooter) GI Partners — Sep 2020 Add-on acquisition Wrench Group All About Water — — Sep 2020 Add-on acquisition Wrench Group Parker & Sons — — Sep 2020 Platform creation Dubin Clark & Company Sila Services Dubin Clark & Company — Sep 2020 Add-on acquisition Champions Group ASI Hastings Heating, Air & Solar CenterOak Partners — Aug 2020 Add-on acquisition Wrench Group Champions Group — — Aug 2020 Add-on acquisition Wrench Group Easy A/C — — Aug 2020 Add-on acquisition HomeServe USA Freedom Heating and Cooling — — Aug 2020 Add-on acquisition HomeServe USA Worry Free Comfort Systems Inc. — — Aug 2020 Add-on acquisition HomeServe USA Worry Free Comfort Systems Inc. (Freedom Heating and Cooling) — — Aug 2020 Add-on acquisition Resolute Industrial Holdings LLC DriExpress LLC — — Aug 2020 Add-on acquisition Resolute Industrial Holdings LLC Empire Holdings LLC — — Jul 2020 Add-on acquisition Mike's Mechanical Services LLC Nolan Heating & Air — — Jul 2020 Add-on acquisition The SEER Group Mike's Mechanical Services LLC — — Jul 2020 Add-on acquisition The SEER Group Nolan Heating & Air — — Jul 2020 Add-on acquisition Southern HVAC (Southern Home Services) Fox Service Company — — Jul 2020 Add-on acquisition Southern HVAC (Southern Home Services) Precision Heating & Air Conditioning — — Jun 2020 Add-on acquisition CoolSys Richmond Refrigeration Service Ares Management Corporation — Jun 2020 Add-on acquisition Southern HVAC Fox Service Company — — Jun 2020 Add-on acquisition Southern HVAC Precision Heating & Air Conditioning — — Jun 2020 Add-on acquisition CoolSys Eastern Refrigeration Ares Management Corporation — Jun 2020 Add-on acquisition Goettl Air Conditioning & Plumbing Eternal Services and Plumbing Solutions — — May 2020 Platform creation The Arcticom Group RACE Engineering — — Mar 2020 Add-on acquisition Wrench Group Donovan Heat and Air — — Mar 2020 Add-on acquisition Smart Care Equipment Solutions Advanced Mechanical Plus — — Mar 2020 Add-on acquisition Wrench Group CoolToday — — Mar 2020 Add-on acquisition Wrench Group Florida Cool Inc. — — Mar 2020 Add-on acquisition Right Time Group of Companies M&K Climate Care Clairvest Group — Feb 2020 Add-on acquisition Neighborly Dryer Vent Wizard — — Feb 2020 Add-on acquisition The SEER Group Coffman & Company — — Feb 2020 Add-on acquisition Champions Group Bell Brothers Heating & Air Conditioning CenterOak Partners — Feb 2020 Majority stake Ares Management Corporation CoolSys (formerly Source Refrigeration & HVAC) — — Feb 2020 Majority stake Investcorp Wrench Group Alpine Investors — Feb 2020 Add-on acquisition Air Pros USA Promaster Air Conditioning — — Jan 2020 Add-on acquisition HB Group Spectrum Mechanical & Service Contractors LLC — — Jan 2020 Platform creation S|E|Capital Partners Sierra Platform S|E|Capital Partners — Dec 2019 Add-on acquisition CoolSys BRR Refrigeration — — Dec 2019 Add-on acquisition CoolSys (formerly Source Refrigeration & HVAC) BRR Refrigeration — — Dec 2019 Add-on acquisition CoolSys Tech Mechanical — — Nov 2019 Majority stake Caverion Huurre Group Oy — — Nov 2019 Add-on acquisition Pueblo Mechanical & Controls Niemeyer Brothers Plumbing Inc. Huron Capital Partners — Nov 2019 Majority stake New Mountain Capital Horizon Services (Horizon Group Holdings) New Mountain Capital — Nov 2019 Add-on acquisition Resolute Industrial Holdings LLC American Equipment Group AE Industrial Partners — Oct 2019 Majority stake Bravida Denmark ICS Industrial Cooling Systems A/S — — Oct 2019 Majority stake Florida Home Improvement Associates Statewide Remodeling York International — Oct 2019 Add-on acquisition CoolSys Building Air Services — — Oct 2019 Add-on acquisition CoolSys (formerly Source Refrigeration & HVAC) Building Air Services — — Oct 2019 Add-on acquisition The Arcticom Group Market Refrigeration Specialists — — Sep 2019 Add-on acquisition R.S. Andrews Plumbit Services — — Aug 2019 Add-on acquisition Pueblo Mechanical & Controls Innovative Mechanical Systems Huron Capital Partners — Aug 2019 Add-on acquisition CoolSys Agape Mechanical — — Jul 2019 Platform creation Apex Service Partners Frank Gay Services Alpine Investors — Jul 2019 Platform creation Alpine Investors Apex Service Partners Alpine Investors — Jul 2019 Add-on acquisition The SEER Group The Climate Control Group Inc. — — Jun 2019 Add-on acquisition Viessmann Group IAC Vestcold As — — Jun 2019 Add-on acquisition HB Group Indian Valley Mechanical LLC — — Jun 2019 Add-on acquisition IT Landes Company Indian Valley Mechanical LLC — — May 2019 Add-on acquisition The Arcticom Group Victory Construction and Refrigeration — — May 2019 Add-on acquisition The SEER Group The Barton Boys — — May 2019 Add-on acquisition The SEER Group Specialty Heating and Cooling — — May 2019 Add-on acquisition The SEER Group The Barton Boys Heating and Air Conditioning — — May 2019 Majority stake CenterOak Partners Champions Group CenterOak Partners — May 2019 Add-on acquisition The Arcticom Group KIC Refrigeration — — May 2019 Add-on acquisition The Arcticom Group (TAG) KIC Refrigeration — — Apr 2019 Add-on acquisition Atlantic Westchester Inc. PE Controls Services Ltd. — — Apr 2019 Add-on acquisition Custom Air Conditioning Ltd. Mavco Plumbing and Heating Ltd. CAI Capital Partners — Apr 2019 Platform creation Leonard Green & Partners Wrench Group Leonard Green & Partners — Mar 2019 Majority stake Ares Management Corporation CoolSys Audax Private Equity — Mar 2019 Add-on acquisition CoolSys ABC Refrigeration & HVAC — — Feb 2019 Add-on acquisition Smart Care Mid-South Maintenance — — Feb 2019 Add-on acquisition Smart Care Equipment Solutions Mid-South Maintenance — — Feb 2019 Add-on acquisition Pueblo Mechanical & Controls CFM Mechanical LLC Huron Capital Partners — Feb 2019 Add-on acquisition Pueblo Mechanical & Controls Newgaard Mechanical Inc. Huron Capital Partners — Jan 2019 Add-on acquisition CoolSys (formerly Source Refrigeration & HVAC) Arjae HVAC and Mechanical Services — — Jan 2019 Add-on acquisition CoolSys Arjae HVAC and Mechanical Services — — Jan 2019 Majority stake Blackstone (BXPE) Therma Holdings LLC — — Jan 2019 Add-on acquisition Therma Holdings LLC Yearout Mechanical Gemspring Capital — Jan 2019 Majority stake Viessmann Group Tschritter GebäudeTechnik GmbH — — Jan 2019 Add-on acquisition Pueblo Mechanical & Controls Commercial Air Services Inc. Huron Capital Partners — Jan 2019 Majority stake Forum Asset Management Green Planet Home Services Forum Asset Management — Jan 2019 Add-on acquisition Goettl Air Conditioning & Plumbing Dutton Plumbing — — Dec 2018 Majority stake ENGIE Deutschland OTTO Luft- und Klimatechnik — — Dec 2018 Add-on acquisition Frigoveneta Freddo & Co. S.r.l. Ambienta — Dec 2018 Add-on acquisition Nordic Climate Technical Retail Services Ltd — — Dec 2018 Add-on acquisition HomeServe USA Geisel Heating, Air Conditioning & Plumbing Inc. — — Dec 2018 Add-on acquisition Airtron Heating & Air Conditioning T.A. Kaiser Heating & Air Inc. — — Dec 2018 Add-on acquisition Direct Energy T.A. Kaiser Heating & Air Inc. — — Dec 2018 Add-on acquisition Direct Energy (Centrica) T.A. Kaiser Heating & Air Inc. — — Dec 2018 Add-on acquisition Gault Heating & Cooling David's Heating Co. — — Dec 2018 Add-on acquisition Gault Heating & Cooling DeMay Heating & Cooling — — Nov 2018 Add-on acquisition Bravida Carrier Refrigeration Sweden — — Nov 2018 Exit Bravida Carrier Refrigeration Sweden — — Sep 2018 Add-on acquisition CoolSys Ron's Refrigeration & HVAC LLC — — Sep 2018 Add-on acquisition Wolseley Canada James Electric Motor Services — — Sep 2018 Add-on acquisition Service Experts Admiral Plumbing Services — — Sep 2018 Add-on acquisition Service Experts Midway Services — — Sep 2018 Add-on acquisition Service Experts The Pink Plumber — — Sep 2018 Add-on acquisition HB McClure Company Accu-Aire Mechanical Services Inc. — — Sep 2018 Add-on acquisition HB McClure Company BBEC Inc. — — Sep 2018 Add-on acquisition HB McClure Company MMG Engineering LLC — — Sep 2018 Majority stake Carver Group CoolTherm — — Sep 2018 Add-on acquisition Mike's Mechanical Services LLC Ackerman Heating and Air Conditioning — — Sep 2018 Add-on acquisition Mike's Mechanical Services LLC The Barton Boys Heating and Air Conditioning — — Aug 2018 Recapitalization Baum Capital Partners Goettl Air Conditioning & Plumbing Baum Capital Partners — Aug 2018 Majority stake Brookfield Infrastructure Enercare Home Services Brookfield Infrastructure — May 2018 Add-on acquisition CoolSys Axiom Energy Solutions — — May 2018 Majority stake First Response Group Robinsons M&E — — Feb 2018 Majority stake The Wilson Companies R&R — — Feb 2018 Add-on acquisition Southern HVAC Duron Smith A/C & Heat — — Feb 2018 Add-on acquisition Southern HVAC FAST of Florida — — Feb 2018 Add-on acquisition Southern HVAC Patrick's Heating and Air Conditioning — — Feb 2018 Add-on acquisition Southern HVAC (Southern Home Services) Duron Smith A/C & Heat — — Feb 2018 Add-on acquisition Southern HVAC (Southern Home Services) FAST of Florida — — Feb 2018 Add-on acquisition Southern HVAC (Southern Home Services) Patrick's Heating and Air Conditioning — — Nov 2017 Add-on acquisition HB Group HB McClure Company — — Nov 2017 Add-on acquisition HB Group IT Landes Company — — Nov 2017 Add-on acquisition HB Group Nash Plumbing and Mechanical LLC — — Oct 2017 Add-on acquisition CoolSys Certified Refrigeration and Mechanical, Inc. Audax Private Equity — Oct 2017 Majority stake Parsons Williams Electric Company — — Sep 2017 Majority stake Engie Axima MCI — — Sep 2017 Majority stake AIAC MCI — — Jul 2017 Majority stake Warburg Pincus Service Logic Warburg Pincus — Jul 2017 Majority stake Marlowe plc Ductclean (UK) — — Jun 2017 Majority stake Daikin Industries Ltd. Airmaster Corporation Pty Ltd. — — Apr 2017 Add-on acquisition American Residential Services (ARS/Rescue Rooter) Comfort Heating & Air — — Apr 2017 Add-on acquisition American Residential Services (ARS/Rescue Rooter) HVAC of Lexington — — Mar 2017 Majority stake Sun Capital Partners Horizon Services (Horizon Group Holdings) Sun Capital Partners — Mar 2017 Add-on acquisition Reliable Heating & Air Laurus Technical Institute — — Feb 2017 Add-on acquisition Entech Sales and Service Inc. Logical Building Solutions Inc. — — Jan 2017 Platform creation Huron Capital Partners Pueblo Mechanical & Controls Huron Capital Partners — Jan 2017 Recapitalization Audax Private Equity PremiStar Audax Private Equity — Dec 2016 Add-on acquisition Goettl Air Conditioning & Plumbing Las Vegas Air — — Dec 2016 Add-on acquisition Goettl Air Conditioning & Plumbing Paradise Air — — Dec 2016 Add-on acquisition MISTRAS Group Condenser & Chiller Services Inc. — — Nov 2016 Majority stake Ainsworth Inc. Airtron Heating & Air Conditioning — — Nov 2016 Majority stake GDI Integrated Facility Services Inc. Airtron Heating & Air Conditioning — $19.5M reported total consideration · approximate Nov 2016 Add-on acquisition Ainsworth Inc. Airtron Canada — — Nov 2016 Add-on acquisition GDI Integrated Facility Services Inc. Airtron Canada — $19.5M reported total consideration · approximate as reported by achrnews.com Oct 2016 Majority stake Yenni Capital Steven Feller P.E. — — Sep 2016 Add-on acquisition Superior Service English Boiler & Tube — — Sep 2016 Add-on acquisition CoolSys (formerly Source Refrigeration & HVAC) Refrigeration Solutions Inc. — — Sep 2016 Add-on acquisition Convergint Technologies TACanada — — Aug 2016 Add-on acquisition Integrated Facility Services Wally's Refrigeration — — Aug 2016 Add-on acquisition American Residential Services (ARS/Rescue Rooter) Weather Crafters — — May 2016 Majority stake Enercare Home Services Service Experts American Capital Ltd. $340.8M reported as reported by achrnews.com May 2016 Majority stake Enercare Inc. Service Experts — May 2016 Majority stake MSouth Equity Partners Southern HVAC (Southern Home Services) MSouth Equity Partners — May 2016 Add-on acquisition HB McClure Company Mainhart Mechanical LLC — — May 2016 Add-on acquisition American Residential Services (ARS/Rescue Rooter) Unique Air Services — — May 2016 Majority stake Comfort Systems USA Shoffner Kalthoff Mechanical Electrical Service Inc. — — Mar 2016 Merger — Service Experts — — Feb 2016 Majority stake Audax Private Equity Source Refrigeration & HVAC Arsenal Capital Partners — Feb 2016 Add-on acquisition Powerhouse Equipment and Engineering Co. Inc. Corn Service Inc. — — Feb 2016 Add-on acquisition Comfort Systems USA Shoffner Mechanical Services Inc. — — Feb 2016 Add-on acquisition Comfort Systems USA ShoffnerKalthoff family of companies — — Feb 2016 Add-on acquisition Comfort Systems USA SKMES Inc. — — Jan 2016 Add-on acquisition American Residential Services (ARS/Rescue Rooter) Aspen Air Conditioning — — Jan 2016 Add-on acquisition American Residential Services (ARS/Rescue Rooter) Atlas Trillo — — Jan 2016 Majority stake Audax Private Equity CoolSys (formerly Source Refrigeration & HVAC) Arsenal Capital Partners — Jan 2016 Add-on acquisition American Residential Services Greenstar Home Services — — Jan 2016 Add-on acquisition American Residential Services (ARS/Rescue Rooter) Greenstar Home Services — — Jan 2016 Add-on acquisition American Residential Services (ARS/Rescue Rooter) Yes! Air Conditioning and Plumbing — — Jan 2016 Platform creation Trivest Partners TurnPoint Services Trivest Partners — Jan 2016 Majority stake Investcorp Wrench Group — — Dec 2015 Majority stake Comfort Systems USA Environmental Air Systems — — Dec 2015 Add-on acquisition Installed Building Products Inc. Eco-Tect Insulation — — Dec 2015 Add-on acquisition Installed Building Products Inc. Sierra Insulation Contractors — — Nov 2015 Majority stake GDI Integrated Facility Services Inc. Ainsworth Inc. — $20.5M reported total consideration · approximate as reported by achrnews.com Nov 2015 Add-on acquisition ENE Systems Pro Controls — — Nov 2015 Majority stake The SEER Group Aladdin Air Conditioning & Heating Inc. — — Sep 2015 Add-on acquisition Engie Services Cofely Axima — — Sep 2015 Add-on acquisition Engie Services Cowley Services — — Sep 2015 Add-on acquisition Engie Services Trilogy Building Services — — Sep 2015 Add-on acquisition Engie Services TSC Group — — Aug 2015 Add-on acquisition Service Logic Modern Heating and Air Conditioning Inc. — — Aug 2015 Majority stake CMC Energy Services Competitive Resources Inc. — — Aug 2015 Exit GDI Integrated Facility Services Inc. Ainsworth Inc. — $20.5M reported approximate as reported by achrnews.com Aug 2015 Add-on acquisition Kenneth D. Goodrich The Honest Plumber, Heating & Air — — Aug 2015 Add-on acquisition Kenneth D. Goodrich Walton's Air Conditioning — — Aug 2015 Add-on acquisition US Peach LLC The Honest Plumber, Heating & Air Kenneth D. Goodrich — Aug 2015 Add-on acquisition US Peach LLC Walton's Air Conditioning Kenneth D. Goodrich — Jul 2015 Add-on acquisition Epta Knudsen Køling — — May 2015 Add-on acquisition The Acme Facilities Group DPL Services — — May 2015 Add-on acquisition The Acme Facilities Group Severn Catering Services — — May 2015 Add-on acquisition Flock’s Heating & Air Conditioning Premier Co-op — — Apr 2015 Add-on acquisition Installed Building Products Inc. C.Q. Insulation Inc. — — Apr 2015 Add-on acquisition John's Refrigeration Heating and Cooling Rom-air Inc. — — Mar 2015 Add-on acquisition SE Holdco LLC Levy & Son Plumbing Inc. — — Mar 2015 Add-on acquisition Service Experts Levy & Son Plumbing Inc. — — Jan 2015 Add-on acquisition ISS GSH — — Jan 2015 Add-on acquisition Steven Winter Associates Inc. Everyday Green LLC — — Dec 2014 Majority stake Ken Goodrich Goettl Air Conditioning & Plumbing — — Dec 2014 Add-on acquisition Ken Goodrich Sonoran Air — — Dec 2014 Add-on acquisition Greenstar Home Services A-Ames Plumbing and HVAC — — Oct 2014 Majority stake Service Experts A-Plus Air Conditioning & Heating Co. — — Sep 2014 Majority stake Ameresco Inc. Energyexcel LLP — — Aug 2014 Majority stake The Riverside Company Aire Serv — — Aug 2014 Majority stake The Riverside Company The Dwyer Group — — Aug 2014 Majority stake TZP Group Aire Serv — — Aug 2014 Majority stake TZP Group The Dwyer Group — — Aug 2014 Add-on acquisition ABM Airco Commercial Services Inc. — — Aug 2014 Add-on acquisition ABM Building & Energy Solutions Airco Commercial Services Inc. — — Aug 2014 Add-on acquisition Goettl Air Conditioning Sonoran Air — — Aug 2014 Add-on acquisition The Sunny Plumber Sonoran Air — — Aug 2014 Add-on acquisition Goettl Air Conditioning & Plumbing Sonoran Air — — Aug 2014 Add-on acquisition Kenneth D. Goodrich Sonoran Air — — Aug 2014 Add-on acquisition Tucson Peach LLC Sonoran Air Goettl Air Conditioning — Jul 2014 Add-on acquisition Recurrent Building Intelligence LLC ProTek HVAC — — May 2014 Add-on acquisition Source Refrigeration & HVAC Service Refrigeration LLC Arsenal Capital Partners — May 2014 Add-on acquisition CoolSys (formerly Source Refrigeration & HVAC) Service Refrigeration LLC Arsenal Capital Partners — May 2014 Majority stake Charlesbank Capital Partners American Residential Services (ARS/Rescue Rooter) Charlesbank Capital Partners — Apr 2014 Majority stake Comfort Systems USA Dyna Ten Corp. — $37.5M reported cash consideration as reported by sec.gov Mar 2014 Add-on acquisition ABM Alpha Mechanical Inc. — — Mar 2014 Add-on acquisition ABM Building Services Alpha Mechanical Inc. — — Jul 2013 Add-on acquisition SDI (System Development.Integration LLC) i-sys Corp — — Jun 2013 Add-on acquisition Chesapeake Utilities Corp. Austin Cox Home Services Inc. — — Apr 2013 Add-on acquisition CoolSys (formerly Source Refrigeration & HVAC) Fournier Air Conditioning and Refrigeration Arsenal Capital Partners — Apr 2013 Add-on acquisition Source Refrigeration & HVAC Fournier Air Conditioning and Refrigeration Arsenal Capital Partners — Mar 2013 Add-on acquisition Source Refrigeration & HVAC TP Electrical Arsenal Capital Partners — Mar 2013 Add-on acquisition CoolSys (formerly Source Refrigeration & HVAC) TP Electrical Arsenal Capital Partners — Mar 2013 Add-on acquisition One Hour Air Conditioning and Heating Dallas Avery Air — — Mar 2013 Majority stake Ameresco Inc. Ennovate Corp. — — Jan 2013 Majority stake American Capital Ltd. Service Experts — — Nov 2012 Add-on acquisition ABM Calvert-Jones — — Sep 2012 Exit Lennox International Service Experts — — Sep 2012 Add-on acquisition Service Experts Jones Heating & Air Co. — — Jan 2012 Majority stake Thornton Tomasetti Fore Solutions — — Jan 2012 Platform creation Sterling Investment Partners Service Logic Sterling Investment Partners — Dec 2011 Add-on acquisition John C. Flood Ronnie Outlaw LC — — Dec 2011 Majority stake Berkeys Southwest Air Conditioning & Plumbing, Inc. — — Jul 2011 Add-on acquisition Apollo Mechanical Contractors Kinetic Systems Inc. — — Jul 2011 Add-on acquisition Bonney Plumbing, Heating & Air D&D Plumbing, Heating & Cooling Skylight Capital — Jun 2011 Exit EMCOR Group Inc. USM Services Holdings Inc. — — Jun 2011 Exit Transfield Services Limited USM Services Holdings Inc. — — Jun 2011 Majority stake EMCOR Group Inc. USM Services Holdings Inc. — — Jun 2011 Majority stake Transfield Services Limited USM Services Holdings Inc. — — Jun 2011 Add-on acquisition American Residential Services L.L.C. Brothers Air and Heat CI Capital Partners LLC — Jun 2011 Add-on acquisition American Residential Services L.L.C. Columbus/Worthington Air CI Capital Partners LLC — Jun 2011 Add-on acquisition American Residential Services L.L.C. (ARS) Brothers Air and Heat CI Capital Partners LLC — Jun 2011 Add-on acquisition American Residential Services L.L.C. (ARS) Columbus/Worthington Air CI Capital Partners LLC — May 2011 Add-on acquisition American Residential Services (ARS/Rescue Rooter) Brothers Air and Heat — — May 2011 Add-on acquisition American Residential Services (ARS/Rescue Rooter) Columbus/Worthington Air — — Apr 2011 Add-on acquisition Alliance Environmental Group Inc. AIRTEK Indoor Air Solutions — — Mar 2011 Add-on acquisition Christenson Electric Tanner Creek Energy — — Mar 2011 Add-on acquisition American Residential Services (ARS/Rescue Rooter) McCarthy Services — — Feb 2011 Majority stake Blue Earth Inc. Castrovilla Inc. — $2.2M reported total consideration as reported by achrnews.com Jan 2011 Add-on acquisition Automated Logic T.A.C. Controls & Automation Inc. — — Jan 2011 Add-on acquisition Carrier T.A.C. Controls & Automation Inc. — — Dec 2010 Majority stake TZP Group The Dwyer Group — $150M reported total consideration · approximate as reported by achrnews.com Nov 2010 Add-on acquisition EMCOR Group Inc. — — — Sep 2010 Add-on acquisition TDIndustries JBS Mechanical — — Aug 2010 Add-on acquisition American Residential Services (ARS/Rescue Rooter) Conway Services Heating, Cooling & Plumbing — — Aug 2010 Add-on acquisition American Residential Services (ARS/Rescue Rooter) Beutler Corp. — — Jul 2010 Add-on acquisition Comfort Systems USA ColonialWebb Contractors Co. — — Jul 2010 Majority stake Centrica Clockwork Home Services — — Jun 2010 Majority stake Direct Energy Benjamin Franklin Plumbing — $183M reported total consideration as reported by supplyht.com Jun 2010 Majority stake Direct Energy Mister Sparky — $183M reported total consideration as reported by supplyht.com Jun 2010 Majority stake Direct Energy One Hour Heating and Cooling — $183M reported total consideration as reported by supplyht.com Jun 2010 Add-on acquisition Oliver Heating & Cooling Robert Wagner Plumbing and Heating — — Jun 2010 Add-on acquisition Automated Logic RCMS Controls, Inc. — — Jun 2010 Add-on acquisition Carrier RCMS Controls, Inc. — — Jun 2010 Add-on acquisition United Technologies Corp. RCMS Controls, Inc. — — Dec 2009 Add-on acquisition Automated Logic Logical Automation Inc. — — Dec 2009 Add-on acquisition Carrier Logical Automation Inc. — — Dec 2009 Add-on acquisition Carrier Metro Mechanical Service Inc. — — Dec 2009 Add-on acquisition Carrier DMS Controls Ltd. — — Dec 2009 Add-on acquisition Carrier ESL Ltd. — — Dec 2009 Add-on acquisition Carrier i2S Group — — Oct 2009 Add-on acquisition American Residential Services (ARS/Rescue Rooter) Efficient Attic Systems — — Mar 2009 Majority stake EMCOR Group Inc. Team Mechanical, Inc. — — Mar 2009 Add-on acquisition EMCOR Services Midwest Team Mechanical, Inc. — — Dec 2008 Add-on acquisition Winters Company Cape Ann Plumbing — — Nov 2008 Add-on acquisition Schneider Electric Control Innovations Inc. — — Nov 2008 Add-on acquisition TAC Control Innovations Inc. — — Oct 2008 Add-on acquisition Clockwork Home Services Hardesty & Crick LLC — — Aug 2008 Add-on acquisition American Residential Services (ARS/Rescue Rooter) Climate Zone — — Aug 2008 Add-on acquisition American Residential Services (ARS/Rescue Rooter) Lloyds Plumbing Heating & Air — — Aug 2008 Add-on acquisition American Residential Services (ARS/Rescue Rooter) Service Max — — Aug 2008 Add-on acquisition Direct Energy Airco Mechanical Ltd. — — Aug 2008 Add-on acquisition Direct Energy (Centrica) Airco Mechanical Ltd. — — Jul 2008 Add-on acquisition American Residential Services (ARS/Rescue Rooter) Goettl Air Conditioning & Plumbing — — Jul 2008 Add-on acquisition Harris Companies Superior Air Handling Corp. — — Jun 2008 Add-on acquisition Service Logic PSR HVAC & Mechanical Services — — May 2008 Add-on acquisition Linc Network LLC Padgett Services — — May 2008 Add-on acquisition The Linc Group LLC Linc Network LLC — — May 2008 Add-on acquisition The Linc Group LLC Padgett Services — — May 2008 Add-on acquisition Carrier Sharp Mechanical, Inc. — — May 2008 Add-on acquisition United Technologies Corp. Sharp Mechanical, Inc. — — Apr 2008 Add-on acquisition Carrier Commercial Service Commercial Air Services Inc. — — Apr 2008 Add-on acquisition United Technologies Corp. Commercial Air Services Inc. — — Apr 2008 Add-on acquisition UTC Canada Corp. Commercial Air Services Inc. — — Apr 2008 Add-on acquisition Smith Services William Sanders A/C — — Feb 2008 Add-on acquisition Apple Heating & Cooling Alpine Heating and Cooling — — Feb 2008 Add-on acquisition Apple Heating & Cooling Fischer Heating & Cooling — — Feb 2008 Add-on acquisition Apple Heating & Cooling Kubichek Heating — — Feb 2008 Add-on acquisition Apple Heating & Cooling Read Refrigeration — — Feb 2008 Add-on acquisition American Residential Services (ARS/Rescue Rooter) 24/7 Service Corporation — — Feb 2008 Add-on acquisition American Residential Services (ARS/Rescue Rooter) Sunset Sheet Metal & Air Conditioning — — Feb 2008 Add-on acquisition American Residential Services (ARS/Rescue Rooter) Yes! Air Conditioning — — Feb 2008 Add-on acquisition American Residential Services (ARS/Rescue Rooter) Yes! Plumbing — — Jan 2008 Add-on acquisition American Residential Services (ARS/Rescue Rooter) Air-Trol Heating and Air Conditioning — — Jan 2008 Add-on acquisition American Residential Services (ARS/Rescue Rooter) Universal Heating and Cooling — — Dec 2007 Add-on acquisition Harris Companies The Climate Control Group Inc. — — Dec 2007 Majority stake Johnson Controls The Capital Group — — Nov 2007 Add-on acquisition Harris Cos. The Climate Control Group Inc. — — Nov 2007 Add-on acquisition EMCOR Group Inc. Performance Mechanical, Inc. — — Nov 2007 Add-on acquisition 24/7 Service Corporation ASSAP Services — — Nov 2007 Add-on acquisition MISCOR Group Ltd. Ideal Consolidated Inc. — — Sep 2007 Add-on acquisition Clockwork Home Services Candlelight Electric Co. — — Sep 2007 Add-on acquisition Clockwork Home Services Candlelight Heating and Air Inc. — — Sep 2007 Add-on acquisition Clockwork Home Services Candlelight Plumbing Inc. — — Sep 2007 Add-on acquisition Clockwork Home Services Climate Select Inc. — — Sep 2007 Add-on acquisition Clockwork Home Services Mitchell Heating and Cooling Inc. — — Sep 2007 Add-on acquisition Clockwork Home Services Myrtle Beach Heating and Cooling Inc. — — Sep 2007 Add-on acquisition American Residential Services (ARS/Rescue Rooter) Florida Home Air Conditioning Co. — — Sep 2007 Add-on acquisition Clockwork Home Services One Hour Air Conditioning & Heating by Joe Ellis — — Sep 2007 Add-on acquisition Clockwork Home Services Sutherlin Inc. — — Sep 2007 Add-on acquisition Windswept Environmental Group Inc. Environmental Restoration of North Carolina — — Sep 2007 Add-on acquisition Apple Heating & Cooling Gallo Heating and Air Conditioning — — Aug 2007 Add-on acquisition EMCOR Group Inc. Air Systems Inc. (ASI) — — Aug 2007 Add-on acquisition EMCOR Group Inc. Fuller Air — — May 2007 Add-on acquisition The Kerner Group Vassars Service — — Mar 2007 Add-on acquisition Automated Logic Marietta Automated Systems, Inc. — — Jan 2007 Add-on acquisition Buckeye Ventures Inc. (BEYV) Barnett Heating and Air Conditioning Services Inc. — — Jan 2007 Add-on acquisition Buckeye Ventures Inc. (BEYV) Energy King — — Jan 2007 Add-on acquisition The Linc Group LLC (TLG) Air Tech Commercial Services — — Jan 2007 Add-on acquisition Linc Network LLC Air Tech Commercial Services — — Jan 2007 Add-on acquisition The Linc Group LLC Air Tech Commercial Services — — Oct 2006 Majority stake Caxton-Iseman Capital (later CI Capital Partners) American Residential Services (ARS/Rescue Rooter) Caxton-Iseman Capital (later CI Capital Partners) $100M reported as reported by en.wikipedia.org Sep 2006 Add-on acquisition Buckeye Ventures Inc. Energy King — — Aug 2006 Add-on acquisition EMCOR Group Inc. Midwesco Services — — Aug 2006 Majority stake Automated Logic Control Solutions Ltd. LLC — — Aug 2006 Add-on acquisition EMCOR Group Inc. EMCOR Services Midwest — — Aug 2006 Add-on acquisition Midwesco Mechanical EMCOR Services Midwest — — Jun 2006 Add-on acquisition Johnson Controls Berg Inc. — — Jun 2006 Add-on acquisition McQuay International John A. Trubee Co. — — May 2006 Add-on acquisition HomeStar Services LLC Air-O-Smith Inc. — — Jan 2006 Add-on acquisition Automated Logic Comfort Systems USA of Twin Cities Inc. — — Jan 2006 Add-on acquisition Automated Logic United Environmental Services L.P. — — Jan 2006 Majority stake Carrier Automated Logic — — Jan 2006 Add-on acquisition Carrier Comfort Systems USA of Twin Cities Inc. — — Jan 2006 Add-on acquisition Carrier United Environmental Services L.P. — — Jan 2006 Add-on acquisition United Technologies Corp. United Environmental Services L.P. — — Jan 2006 Majority stake Emerson Oaksmere Refrigeration Design and Consultancy Ltd. — — Dec 2005 Add-on acquisition Emerson Climate Technologies Oaksmere Refrigeration Design and Consultancy Ltd. — — Oct 2005 Add-on acquisition The Linc Group LLC BMAR & Associates Inc. — — Oct 2005 Add-on acquisition The Linc Group LLC Linc Facility Services LLC — — Jun 2005 Add-on acquisition Carrier CommAir Mechanical Services — — Jun 2005 Exit Carrier CommAir Mechanical Services — — Jan 2005 Add-on acquisition Comfort Systems USA Granite State Plumbing & Heating — — Jan 2005 Add-on acquisition KeySpan Corp. Granite State Plumbing & Heating — — Jan 2005 Majority stake CIMCO Refrigeration Engineered Refrigeration Systems Inc. — — Oct 2004 Majority stake Centrica Residential Services Group — — Oct 2004 Majority stake Direct Energy Residential Services Group — — Oct 2004 Majority stake Direct Energy (Centrica) Residential Services Group (RSG) — — Jul 2004 Add-on acquisition John W. Danforth Company Inc. Niagara Frontier Sheetmetal Inc. — — Apr 2004 Majority stake Carrier Automated Logic — — Dec 2003 Majority stake GI Partners The Linc Group LLC — — Dec 2003 Exit GI Partners The Linc Group LLC — — Jun 2003 Add-on acquisition VenVest Incorporated Union Energy — — May 2003 Add-on acquisition Phoenix Land Associates H&N Plumbing — — May 2003 Add-on acquisition Record-Wheatley Plumbing Services H&N Plumbing — — Jan 2003 Add-on acquisition Global Mechanical Services Borg Mechanical Contractors Inc. — — Jan 2003 Add-on acquisition The Helm Group Borg Mechanical Contractors Inc. — — Jun 2002 Add-on acquisition DeMarco Energy Systems of America Baker's Filter Services — — Jun 2002 Add-on acquisition Reedy Industries Lippert Mechanical — — Jun 2002 Add-on acquisition Reedy Industries RC Mechanical Services Corp. — — Mar 2002 Majority stake EMCOR Group Inc. Shambaugh & Sons — $186.3M reported as reported by pmmag.com Mar 2002 Add-on acquisition Blue Dot Services Inc. Air Texas Mechanical — — Mar 2002 Add-on acquisition Blue Dot Services Inc. G.L. Mack Enterprises — — Feb 2002 Majority stake EMCOR Group Inc. F&G Mechanical — — Feb 2002 Majority stake EMCOR Group Inc. Kuempel Service, Inc. — — Feb 2002 Majority stake EMCOR Group Inc. Shambaugh & Son, Inc. — — Feb 2002 Majority stake EMCOR Group Inc. Comfort Systems USA — $186.3M reported cash consideration · approximate as reported by achrnews.com Jun 2001 Add-on acquisition Pepco Building Services Unitemp, Inc. — — Jun 2001 Platform creation Pepco Building Services Engineered Services of Virginia — — Jun 2001 Platform creation Pepco Building Services MET Electrical Testing — — Jun 2001 Platform creation Pepco Building Services Substation Test — — Jun 2001 Add-on acquisition Pepco Energy Services Unitemp, Inc. — — Jun 2001 Platform creation Pepco Energy Services Engineered Services of Virginia — — Jun 2001 Platform creation Pepco Energy Services MET Electrical Testing — — May 2001 Add-on acquisition Performance Contracting, Inc. Thermal Services, Inc. — — Jan 2001 Add-on acquisition Exelon Enterprises Wenninger Company, Inc. — — Sep 2000 Add-on acquisition Unicom Corp. Rieck Mechanical Electrical Services Inc. — — Sep 2000 Add-on acquisition Unicom Mechanical Services Rieck Mechanical Electrical Services Inc. — — Jul 2000 Add-on acquisition PSEG Energy Technologies Frank A. McBride Co. — — Jul 2000 Add-on acquisition Public Service Enterprise Group Frank A. McBride Co. — — Jul 2000 Add-on acquisition Indoor Comfort Group USA, Inc. Clouse Air Conditioning — — Jul 2000 Add-on acquisition Indoor Comfort Group USA, Inc. Cumberland Comfort Air — — Jul 2000 Add-on acquisition Indoor Comfort Group USA, Inc. Eagle Air — — Jul 2000 Add-on acquisition Indoor Comfort Group USA, Inc. Kimbro Electric — — Jul 2000 Add-on acquisition Indoor Comfort Group USA, Inc. P.E. Poole — — Jul 2000 Add-on acquisition R.S. Andrews AAA Service Co. — — Jul 2000 Add-on acquisition R.S. Andrews Holt Service Co. — — Jun 2000 Majority stake PP&L Resources McCarl's Services Inc. — — Jun 2000 Majority stake Group Maintenance America Corp. (GroupMAC) Building One Services Corp. — — Jun 2000 Platform creation Unicom Corp. Midwest Mechanical — — Jun 2000 Platform creation American Plumbing and Mechanical (AMPAM) Inc. Christianson Enterprises — — Jun 2000 Platform creation American Plumbing and Mechanical (AMPAM) Inc. Croson-Teepe Mechanical Contractors — — Jun 2000 Platform creation American Plumbing and Mechanical (AMPAM) Inc. J.A. Croson Co. — — Jun 2000 Platform creation American Plumbing and Mechanical (AMPAM) Inc. Keith Riggs Plumbing — — Jun 2000 Platform creation American Plumbing and Mechanical (AMPAM) Inc. Miller Mechanical Contractors — — Jun 2000 Platform creation American Plumbing and Mechanical (AMPAM) Inc. Nelson Mechanical Contractors — — Jun 2000 Platform creation American Plumbing and Mechanical (AMPAM) Inc. RCR Companies — — Jun 2000 Platform creation American Plumbing and Mechanical (AMPAM) Inc. Sherwood Mechanical — — Jun 2000 Add-on acquisition Comfort Systems USA Outbound Services — — Jun 2000 Add-on acquisition Group Maintenance America Corp. Trinity Contractors Inc. — — Jun 2000 Platform creation Unicom Mechanical Services Midwest Mechanical — — May 2000 Majority stake Group Maintenance America Corp. Building One Services Corp. — — Mar 2000 Platform creation Encompass Services Corp. Group Maintenance America Corp. (GroupMAC) — — Jan 2000 Majority stake Lennox International Service Experts — — Jan 2000 Majority stake Encompass Services Corp. Group Maintenance America Corp. — — Jan 2000 Platform creation Encompass Services Corp. Building One Services Corp. — — Jan 1996 Platform creation — Service Experts — — — Add-on acquisition Action Air Systems Air Comfort Systems Trinity Hunt Partners — — Minority stake — Apex Service Partners — — — Add-on acquisition ARC Mechanical Mullally Bros. Southfield Capital — — Add-on acquisition Automated Logic Contracting Services CCG Automation — — — Merger — BBEC Inc. — — — Exit Best in Class Technology Services Modern Niagara Building Services — — — Add-on acquisition Bluu Unit KKL Holding GmbH — — — Add-on acquisition Bluu Unit Tech Refrigeration and Air Conditioning — — — Majority stake Carrier Automated Logic — — — Merger — Caverion — — — Majority stake — Champions Group — — — Recapitalization — Conditioned Air Solutions — — — Add-on acquisition CoolSys (formerly Source Refrigeration & HVAC) Certified Refrigeration and Mechanical, Inc. Audax Private Equity — — Majority stake Daikin UK Robert Heath Heating — — — Platform creation Foundral Smith & Oby McNally Capital — — Majority stake — GK Danmark A/S — — — Recapitalization — Goettl Air Conditioning — — — Add-on acquisition Grizzly MEP Air Design Systems — — — Add-on acquisition Grizzly MEP Excel Mechanical Contractors, LLC — — — Add-on acquisition Grizzly MEP Stiles Heating & Cooling — — — Add-on acquisition Heritage Home Service Ayotte — — — Add-on acquisition Leap Partners Conditioned Air Solutions — — — Add-on acquisition Len the Plumber Service Today Inc. — — — Merger — MMG Engineering LLC — — — Add-on acquisition NexCore Air Comfort Systems Trinity Hunt Partners — — Add-on acquisition NexCore Mechanical Systems Technology Inc. Trinity Hunt Partners — — Platform creation NexCore Action Air Systems Trinity Hunt Partners — — Add-on acquisition Nordic Climate Allcool (NW) — — — Add-on acquisition Nordic Climate Huijbregts Koeltechniek — — — Add-on acquisition Nordic Climate Iceline Yorkshire — — — Add-on acquisition Nordic Climate Technical Retail Services Ltd (TRS) — — — Merger — P1 Service Group — — — Majority stake Panasonic Corporation UNION RHAC TECNOLOGIA — — — Majority stake — Quercy Réfrigération — — — Recapitalization — Reedy Industries — — — Add-on acquisition Rocket Group ProThermal Heating & Cooling — — — Add-on acquisition Sila Services Unique Indoor Comfort — — — Platform creation — Tendra Technical Services — — — Add-on acquisition The Kelvin Group Mullally Bros. Southfield Capital — — Platform creation — TruTemp Holdings — — — Majority stake — Vagns VVS A/S — — — Merger — Walker ClimateCare — — — Majority stake — Western Heating & Air Conditioning — — 