Incline Equity Partners, a Pittsburgh-based lower middle-market private equity firm, has acquired Unified Power, the largest independent provider of preventative maintenance and repair services for uninterruptible power systems in North America. The Terrell, Texas, company has a national footprint.

The terms of the transaction were not disclosed, but Incline generally seeks companies with enterprise values of $25 million to $300 million and often grows its portfolio companies through add-ons. The seller was PE firm Pfingsten Partners, which bought the company in 2011.

“Unified exhibits many of the attractive characteristics that we look for when investing in a company,” Incline Managing Director John Morley said in a statement. "In addition to providing a critical, non-deferrable recurring service to customers, the company is a proven platform for acquisitions and is led by an outstanding management team that has a strong cultural fit with Incline."

Unified offers a variety of maintenance service plans to ensure all critical power supply equipment is properly serviced. Service plans not only keep systems operating at optimal levels, but also extend the life of batteries and other system components. In addition to UPS services, the company also provides DC plant and inverter maintenance as well as battery monitoring, maintenance and replacement services.