Horwitz is a Midwest-based mechanical, electrical, and plumbing specialty contractor.
Based in Dallas, Mammoth Holdings is an express car wash platform.
Included in the deal are Honeywell's brands Fendall, Fibre-Metal, Howard Leight, KCL, Miller, Morning Pride, North, Oliver, Salisbury and UVEX.
Driescher is a high-tech medium-and low-voltage switches and switchgears manufacturer.
Archimed, Angeles Equity Partners, Consello Capital and MML Capital are among the firms competing for occupational health assets.
Melita is a digital infrastructure owner and operator in Malta.
TA Associates, GTCR and Hg are among the PE firms making deals in the sector.
Included in the deals are brands that manufacture hydraulic components.
TechVenture Investors and Spectrum Equity will all remain shareholders in Empyrean.
PST provides measurement instrumentation and monitoring products for process-critical applications.