William O. Grabe has been a Managing Director at General Atlantic since 1992. Mr. Grabe brings broad international experience and an extensive sales and marketing background to General Atlantic. He has assisted numerous companies in their geographical expansion and the development of strategic alliances. As a Managing Director at General Atlantic, Mr. Grabe is a director of several private and public software and services companies including AKQA, Infotech Enterprises Ltd., Lenovo Group Limited, Patni Computer Systems, and Quality Technology Services.

Prior to his affiliation with General Atlantic, Mr. Grabe retired from the IBM Corporation as an IBM Vice President and Corporate Officer. In his last position he was responsible for US Marketing and Services and was a founding member of the board of ISSC, the precursor to IBM Global Services. Earlier in his IBM career he was President, National Accounts Division and in 1988 was responsible for the worldwide launch of the AS 400.

His outside affiliations include serving as a member of the UCLA Anderson School of Management Board of Visitors, a Trustee of Outward Bound International, a Trustee of the Board of the Nature Conservancy Connecticut Chapter, and a director of Actinium Pharmaceuticals, Inc., Compuware Corporation and Gartner, Inc.