The Hearst Magazines and Conde Nast joint venture announced the acquisition.

ProCirc is a US-based publishing services company, which boasts over 50 publishing clients with over 250 titles.

Noteable clients include Bonnier, Rodale, Outside Magazine, and New York Media.

Chief executive of PubWorX, Al Perruzza, said: “ProCirc is a company we have long admired for its strategic, analytical approach to circulation management. Both PubWorX and ProCirc have strong industry and supply-base relationships, and together, we can provide even more personalized service to a broader range of clients, amplifying our ability to quickly deliver bottom line results for their businesses.”

ProCirc will continue to operate independently as a division of PubWorX, with co-founder and president Cary Zel and chief executive Marc Passarelli remaining at the helm.