PremiStar Acquires Mechanical Service & Systems (MSS)

PremiStar, a portfolio company of Partners Group, has acquired Mechanical Service & Systems (MSS), expanding its commercial HVAC footprint into Utah. The transaction was announced on June 10.

“Ropes & Gray represented **PremiStar** in its acquisition of Mechanical Service & Systems (MSS). The [transaction](https://premistar.com/blog/2026/06/09/premistar-partners-with-mechanical-service-systems-expanding-its-commercial-hvac-footprint-to-utah/) was announced on June 10.”

Signals are extracted from public coverage and print archives and pinned to a verbatim quote, presented as reported by their sources; naming a company in a signal is not an accusation against it. The verified mark denotes a high-confidence, corroborated signal. See our methodology and legal notes.