The Abernathy/MacGregor Group Inc.
Abramson Cancer Center & University of   Pennsylvania Health System
The Adler Foundation, Inc.
American Livery Service, Inc.
Anchin Block & Anchin LLP
APS MIS Group, Argonne National Laboratory
Ashby & Geddes
Aspen Advisors
Berkshire Hathaway, Inc.
Betteridge Jewelers, Inc.
The Billy Smithline Foundation, Inc.
BlackRock Financial Management, Inc.
Bloomberg LP
W.T. Butler Company, Ltd.
Commerce Bank
Davies Ward Phillips & Vineberg, LLP
Dolphin Management Company, LLC
D.W. Van Dyke & Co., Inc.
Elite Brokerage Services, Inc.
Essex Financial Services, Inc.
Federated Foundations, Inc.
Fidelity Charitable Gift Fund
J.C. Flowers & Co. LLC
Garfield & Hecht, P.C.: Attorneys at Law
The Garnet Group Inc.
General Cologne RE: Corporation
Genentech
Geneve Corporation
Global Risk Services, Ltd.
Grant Thornton
The Greenwich Bank & Trust Company
ImClone Systems Incorporated
Independence Holding Company
Innisfree M&A Incorporated
Instinet, LLC
Introgen Therapeutics
Jewish Communal Fund
Johnson Bank
Johnson & Johnson
JP Morgan Chase
KPMG LLP
Kramer, Levin, Naftalis & Frankel LLP
The Kurz Family Foundation, Ltd.