Therma Holdings, a portfolio company of Gemspring Capital, has acquired Gilbert Mechanical Contractors. Gilbert is Therma’s fourth acquisition since being acquired by Gemspring in June 2017.
Gilbert is a provider of mechanical, electrical, plumbing, controls, and fire protection services – including design and build – to commercial customers in the healthcare, commercial, and institutional markets. The company was founded in 1978 and is based near Minneapolis in Edina, Minnesota.

“Gilbert is a terrific addition to the Therma family,” said Mr. Sprau. “Their full-suite of mechanical and electrical solutions in mission-critical environments is a great offering fit, and their design expertise and customer focus is a perfect cultural fit. We’re looking forward to partnering with the entire Gilbert team to continue to grow the business in the Twin Cities market.”
Therma’s three earlier add-on acquisitions were VarcoMac, a Maryland-based provider of electrical systems and services to the data center, healthcare and high technology industries (acquired in September 2019); Integrated Mechanical Systems, a California-based provider of mechanical design, fabrication, construction and maintenance services to commercial, institutional, retail, and
light industrial facilities (acquired in February 2019); and Yearout Mechanical, a New Mexico-based design and build provider of mechanical, fabrication and maintenance services for HVAC, plumbing and piping systems (acquired in December 2018). Gemspring is continuing to pursue additional add-on opportunities for Therma.
Gemspring invests in companies that have revenues up to $500 million and are active in the business services, distribution and logistics, financial and insurance services, healthcare services, industrial services, software and tech-enabled services, and specialty manufacturing sectors. The firm, which held a final closing of its debut fund in November 2016 with $350 million of capital commitments, is based in Westport, Connecticut. In March 2020, Gemspring closed its second fund with $750 million of capital commitments.
Private Equity Professional | June 16, 2020


