Davis Polk is advising Tailwind Capital Partners, as an equity holder of SDI Health Holdings LLC, and is acting as special counsel to SDI Health Holdings LLC in connection with IMS Health Incorporated’s acquisition of SDI Health. The financial terms of the transaction were not disclosed.

Tailwind Capital Partners is a leading private equity firm investing in growth-oriented middle-market companies in the health care, business services and media/telecommunications sectors. SDI Health is a leading healthcare market insight and analytics provider based in Plymouth Meeting, Pennsylvania. Based in Norwalk, Connecticut, IMS Health is a leading provider of market intelligence to the pharmaceutical and healthcare industries.

The Davis Polk corporate team includes Nancy L. Sanborn, Robert A. Rizzo and Rahael Seifu. Michael N. Sohn, Arthur J. Burke and Stephen M. Pepper are providing antitrust advice. William H. Weigel and Joshua Ruland are providing tax advice. Yukako Kawata and Jennifer Grant Cooper are providing investment management advice. Members of the Davis Polk team are based in the New York and Washington DC offices.