Paychex Inc. announced today it acquired professional employer organization HR Outsourcing Holdings Inc., which goes by HROI. The acquired firm operates in 35 states and is based in Charlotte, NC.

“This acquisition represents Paychex’s continued focus on growth — both in revenue and in PEO solutions for our clients,” Paychex President and CEO Martin Mucci said. “The combination of Paychex’s experience, knowledge and resources with the experience and fast-based growth of HROI positions us to have an even stronger presence in the industry.”

HROI has approximately 140 employees, who will be offered the opportunity to become Paychex employees, according to the company. Terms of the transaction were not announced. HROI has been in business since 2001.

“We share a common vision and PEO view, and Paychex has great respect for the comprehensive PEO solution we’ve built, for our culture and for our team,” HROI President and COO Anthony Danon said.

Paychex, based in Rochester, NY, provides PEO and other services.