Monroe Capital LLC announced it acted as sole lead arranger and administrative agent on the funding of a senior credit facility to support the acquisition of OSG Billing Services (“OSG”), a leading provider of billing and customer communication solutions, by Aquiline Capital Partners LLC, a New York-based private equity firm investing in financial services and technology.

Founded in 1992 and based in Ridgefield Park, New Jersey, OSG has grown into a leader in the billing and invoice business, offering innovative solutions to businesses across many industries including middle-market financial, communications, media, utility, homeowners’ association management, and other sectors. OSG’s integrated, end-to-end process offers customers industry-leading solutions and service from design to production to post-production reporting and analysis. OSG’s comprehensive and flexible electronic billing and invoice/statement services, document printing, mailing and a suite of forward-thinking marketing solutions enable OSG’s clients to transform their customer interactions to drive revenue, reduce costs and strengthen relationships.

Monroe Capital LLC is a leading provider of senior and junior debt and equity co-investments to middle-market companies in the U.S. and Canada. Investment types include unitranche financings, cash flow and enterprise value based loans, asset based loans, acquisition facilities, mezzanine debt, second lien or last-out loans and equity co-investments.