Private equity firm Periscope Equity announced an investment in per diem and travel nurse provider MAS Medical Staffing LLC — which ranked as the 40^th-largest US healthcare staffing firm last year, according to SIA — in a recapitalization in partnership with management. MAS Medical Staffing is now a portfolio company of Periscope.

MAS Medical Staffing was founded in 2002 and is based in Londonderry, New Hampshire. It’s focused on serving long-term care facilities in the northeastern US and has a community of more than 3,400 nurses. Its service offerings include the Maestra platform, which organizes per diem shift fulfillment by linking client companies and their open shifts directly with nurses.

“As we leverage our Maestra platform to enter new geographies, our growth is accelerating,” said MAS Medical Staffing founder and CEO Ken Johnson. “Having a partner that not only understands how to support a rapidly expanding business and technology platform, but also has expertise in our specific sector, is critical.”

Plans call for Periscope and MAS Medical to expand the staffing firm’s geographic footprint, accelerate technology development and make acquisitions.

“Leveraging MAS’ business, team, culture, technology and brand recognition, we expect MAS to expand its geographic footprint to become the leading provider of these services to long-term care facilities throughout the country,” Periscope Partner John Findlay said.