PremiStar Acquires Mechanical Service Systems (MSS) in HVAC Consolidation Play

June 11, 2026

PremiStar, a Partners Group-backed HVAC consolidation platform, acquired Mechanical Service & Systems (MSS), a mechanical services contractor based in Oregon. D.A. Davidson & Co. acted as exclusive financial advisor to MSS, and the transaction closed in early June 2026 (terms undisclosed).

Buyers
PremiStar
Targets
Mechanical Service & Systems (Mechanical Service & Systems / MSS)
Platforms
PremiStar
Location
Oregon, United States
Transaction Type
Addon

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