Pinstripe, a Brookfield, Wisc.-based provider of recruitment process outsourcing (RPO) services, received a significant equity investment from Accel-KKR, a private equity firm based in Menlo Park, Calif. Financial terms were not disclosed. Also, Rob Palumbo, managing director at Accel-KKR, will join Pinstripe’s board of directors.

“Pinstripe’s reputation for delivering outstanding client results and having the best employees in the industry gave us the opportunity to choose from many interested financial partners,” said Sue Marks, CEO of Pinstripe. “We quickly became convinced Accel-KKR will provide the support and independence Pinstripe needs to break new ground and elevate the company to an unrivaled level of industry leadership.”

"Pinstripe has demonstrated all the characteristics that Accel-KKR looks for: a top management team, proven market leadership, a world-class client base, a superior service delivery model and an industry-leading technology platform," said Greg Williams, managing director at Accel-KKR.