Pittsburgh-based private equity firm Incline Equity Partners is selling Bethlehem-based Rotating Machinery Services to New York City PE firm Cortec Group.

No financial terms were disclosed.

Incline acquired RMS in 2015. In three and a half years, Incline more than tripled the size the business and helped transform RMS from a single facility to five locations across two continents.

Founded in 1997, RMS is an aftermarket turbomachinery services company, providing repairs, re-rates and parts for industrial rotating machinery and equipment, including compressors, expanders and turbines.

“When we initially partnered with RMS, it was a durable business with tremendous potential but was underinvested in and operating without a growth mandate,” Incline Senior Partner Justin Bertram said in a statement. “We focused our efforts on developing the infrastructure needed to enhance operations and recruiting a talented management team with a growth vision. Those efforts paid off.”

RMS CEO John Bartos said Incline, the first institutional partner for RMS, was instrumental in helping the company complete two strategic, sizeable acquisitions.

Incline invests in manufacturing, distribution and business services companies, generally seeking growing companies with enterprise values of $25 million to $300 million. Incline’s typical investment types are ownership transitions for privately held businesses, buyouts and corporate divestitures within the U.S. and Canada.