Harvest Partners has acquired Integra Testing Services, a Mentor, Ohio-based provider of commercial HVAC testing and certification services. The transaction marks a strategic move for the private equity firm to expand its footprint in specialized building services. Keystone Capital Management sold the company after backing its growth since founding in 2021.

Integra delivers commercial HVAC testing, adjusting and balancing services alongside controlled environment testing and certification to diverse end-markets. The business operates in a technical niche requiring precise environmental control verification and regulatory compliance. This specialization positions it well within the growing demand for energy efficiency and building safety standards.

CEO Dominic Mazzolini will continue leading operations, with the management team retaining significant ownership stakes. This continuity suggests confidence in the company's trajectory and existing strategy. The retained ownership structure often aligns interests between private equity sponsors and management teams.

The deal reflects ongoing private equity appetite for testing and inspection companies with recurring revenue models. Building services firms with specialized capabilities remain attractive consolidation targets as investors seek steady, defensible cash flows in essential infrastructure markets.