Riverside Partners, a Boston-based private equity firm, has completed a platform investment in UnisLink Holdings LLC.

UnisLink is a provider of end-to-end revenue cycle management and population health management services. The firm delivers its services to physician groups, ACOs, and value-based care groups.

“UnisLink is a great fit with Riverside’s focus on investing in differentiated, founder-owned businesses in growing end markets,” said David Belluck, a general partner at Riverside Partners. “UnisLink represents a business at the intersection of Riverside’s healthcare and technology sector focus. We are excited to partner with the three founders who will continue to manage the company as well as own a large equity stake going forward.”

Leonis Partners served as the financial advisor to UnisLink in the transaction. Choate Hall & Stewart LLP served as legal counsel to Riverside Partners, and Morris, Manning & Martin LLP served as legal counsel to UnisLink.