Donald R. Caldwell has served as Co-Chairman of our board of directors since March 2008. Mr. Caldwell founded Cross Atlantic Capital Partners, Inc. in 1999 and presently serves as its Chairman and Chief Executive Officer. Mr. Caldwell serves on several boards of publicly and privately held companies and civic organizations, including Diamond Management & Technology Consultants, Incorporated (NASDAQ); Quaker Chemical Corporation (NYSE); Voxware Incorporated (NASDAQ); Rubicon Technology, Inc. (NASDAQ); Pennsylvania Academy of the Fine Arts (Chairman); and the Committee for Economic Development.
From 1996 to 1999, Mr. Caldwell was President and Chief Operating Officer and a Director of Safeguard Scientifics, Inc., a holding company providing management resources and capital. Prior to joining Safeguard in 1993, Mr. Caldwell held a number of executive and financial positions, including Chief Administrative Officer of a predecessor company of Cambridge Technology Partners, Inc. (Massachusetts), a provider of information technology consulting and software development; Executive Vice President and then President of Atlantic Financial; and as a partner in the national office of Arthur Young & Co., a predecessor to Ernst & Young, LLP. Mr. Caldwell is a Certified Public Accountant in the State of New York.

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