4M Building Solutions Acquires Calvary Building Services
August 1, 2025
4M Building Solutions, a St. Louis–based commercial cleaning platform backed by O2 Investment Partners, has acquired Grand Rapids, Michigan–based Calvary Building Services. The add-on strengthens 4M's presence in West Michigan and brings Calvary's ~79 frontline team members and long‑tenured client contracts onto 4M's platform.
- Targets
- Calvary Building Services
- Sellers
- Calvary Building Services, Matt Joyce
- Platforms
- 4M Building Solutions
- Industry
- Professional Services
- Location
- Michigan, United States
- Transaction Type
- Addon
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