Committee Composition

= Chair

= Member

= Independent Director

	Audit	Nominating and Corporate Governance	Compensation
Robert H. Niehaus
Founder and Chairman of GCP Capital Partners and Greenhill Capital Partners Mr. Niehaus has been the Chairman of Greenhill Capital Partners since June 2000. Mr. Niehaus has been a member of Greenhill's Management Committee since its formation in January 2004. Mr. Niehaus joined Greenhill in January 2000 as a managing director to begin the formation of Greenhill Capital Partners. Prior to joining Greenhill, Mr. Niehaus spent 17 years at Morgan Stanley & Co., where he was a managing director in the merchant banking department from 1990 to 1999. Mr. Niehaus was vice chairman and a director of the Morgan Stanley Leveraged Equity Fund II, L.P., a $2.2 billion private equity investment fund, from 1992 to 1999, and was vice chairman and a director of Morgan Stanley Capital Partners III, L.P., a $1.8 billion private equity investment fund, from 1994 to 1999. Mr. Niehaus was also the chief operating officer of Morgan Stanley's merchant banking department from 1996 to 1998. Mr. Niehaus is a director of Heartland Systems Payments, Inc. and other private companies. Mr. Niehaus is a graduate of Princeton University and the Harvard Business School, from which he graduated with high distinction as a Baker Scholar.
J. Darrel Barros
Director Mr. Barros is the President of Syndicated Communications, Inc., a private equity fund focused on media and communications. Prior to joining the SCI team, he was President of VGC, PC, a Washington, DC based law firm specializing in private equity and early−stage investments. Mr. Barros also served as a corporate and securities attorney in the venture capital practice group of DLA Piper US LLP. He is currently Executive Chairman of Haven Media Group, LLC, a music−media company, and Chairman of Prestige Resort Properties, Inc., a resort and hospitality company. Mr. Barros is also a director of TMX Interactive, Simplink Corporation and Maya Cinemas. Mr. Barros received a B.S. degree from Tufts University, a Master in Business Administration from the Amos Tuck School of Business in Dartmouth College, and a Juris Doctorate degree from the University of Michigan.
Scott L. Bok
Director Mr. Bok has served as Greenhill's Co−Chief Executive Officer since October 2007, served as its Co−President between 2004 and 2007 and has been a member of Greenhill's Management Committee since its formation in January 2004. In addition, Mr. Bok has been a director of Greenhill since its incorporation in March 2004. From January 2004 until October 2007, Mr. Bok was Greenhill's U.S. President. From 2001 until the formation of Greenhill's Management Committee, Mr. Bok participated on the two−person administrative committee responsible for managing Greenhill's operations. Mr. Bok has also served as a Senior Member of Greenhill Capital Partners since its formation. Mr. Bok joined Greenhill as a managing director in February 1997. Before joining Greenhill, Mr. Bok was a managing director in the mergers, acquisitions and restructuring department of Morgan Stanley & Co., where he worked from 1986 to 1997, based in New York and London. From 1984 to 1986, Mr. Bok practiced mergers and acquisitions and securities law in New York with Wachtell, Lipton, Rosen & Katz. Mr. Bok is a member of the board of directors of various private companies. Mr. Bok is also a member of the Investment Committee of Greenhill Capital Partners. Mr. Bok is a cum laude graduate of the University of Pennsylvania's Wharton School. He holds a Juris Doctorate, cum laude, from the University of Pennsylvania Law School, where he was an editor of the law review.
Thomas C. Canfield
Director Mr. Canfield has served as Senior Vice President and General Counsel of Spirit Airlines since October 2007. Previously, Mr. Canfield was General Counsel of Point Blank Solutions, Inc. and was Chief Executive Officer and Plan Administrator for AT&T Latin America Corp. Prior to assuming those roles, Mr. Canfield was General Counsel and Secretary of AT&T Latin America following its acquisition with FirstCom Corporation. Mr. Canfield became General Counsel of FirstCom in May 2000. Prior to joining FirstCom, Mr. Canfield was Counsel in the New York office of Debevoise & Plimpton LLP, where for nine years he practiced in the areas of corporate, securities and international transactions. Mr. Canfield also is a member of the Boards of Directors of Tricom SA and Birch Telecom Inc.
Peter M. Dawkins
Director Mr. Peter M. Dawkins is founder and principal of ShiningStar Capital LLC, and Brigadier General, U.S. Army (Retired). Prior to founding his current firm, Gen. Dawkins was vice chairman of Global Wealth Management for Citigroup, vice chairman of the Citigroup Private Bank, and executive vice president and vice chairman of Travelers Insurance during an eleven-year tenure with the firm. Previously, from 1991 – 1996, he served as chairman and CEO of Primerica Financial Services, and earlier served as head of the U.S. consulting practice of Bain & Company. During his military career, Gen. Dawkins served as military assistant to the Deputy Secretary of Defense and was selected as a White House Fellow. Gen. Dawkins began his career in the private sector as head of the Public Financing Banking division of Lehman Brothers. He led a three-year initiative focused on providing creative financing to overhaul a significant portion of the physical infrastructure throughout the country. A 1959 graduate of West Point, Gen. Dawkins served in the U.S. Army for 24 years. He commanded a company in the 82nd Airborne Division, led a battalion in Korea, and commanded a brigade of the 101st Airborne Division. He was promoted to Brigadier General in 1981. Gen. Dawkins holds a Ph.D. and master's degree from the Woodrow Wilson School at Princeton University. He was selected as a Rhodes Scholar and studied at Oxford University from 1959 through 1962. In 1963, Time magazine identified him as one of the "Top 50 Leaders in the U.S." and, in 2006, he received the Horatio Alger Award.
Terry Jones
Director Mr. Jones is the Managing Member of the General Partner of Syndicated Communications Venture Partners V, L.P. and the Managing Member of Syncom Venture Management Co., LLC. Prior to joining Syncom in 1978, he was co-founding stockholder and Vice President of Kiambere Savings and Loan in Nairobi, and a Lecturer at the University of Nairobi. He also worked as a Senior Electrical Engineer for Westinghouse Aerospace and Litton Industries. He is a member of the board of directors for several other Syncom portfolio companies including Radio One, Inc. and TV One LLC. He formerly served on the Board of the Southern African Enterprise Development Fund, a presidential appointment, and is on the Board of Trustees of Spellman College. Mr. Jones received a B.S. degree in Electrical Engineering from Trinity College, an M.S. degree in Electrical Engineering from George Washington University and a Masters of Business Administration from Harvard University.
Alvin B. Krongard
Director Mr. Krongard is the Former CEO and Chairman of the Board of Alex. Brown Incorporated, the nation's oldest investment banking firm. Mr. Krongard also served as Vice Chairman of the Board of Bankers Trust in addition to holding other financial industry posts. He has served as Counselor to the Director of the U.S. Central Intelligence Agency (CIA), then as Executive Director of the CIA. Mr. Krongard received a B.A. degree with honors from Princeton University and a Juris Doctorate degree with honors from the University of Maryland School of Law. He served three years of active duty as an infantry officer with the U.S. Marine Corps.
Steven B. Pfeiffer
Director Mr. Pfeiffer has been a partner in the law firm of Fulbright & Jaworski LLP since 1983 and has served as the elected Chair of the firm's Executive Committee since 2003. He previously served as the Partner−In−Charge of the Washington, DC and London offices, and headed the firm's International Department. In addition to serving on the Board of Iridium Holdings, Mr. Pfeiffer is a Non−Executive Director of Barloworld Limited in South Africa, Chairman Emeritus of Wesleyan University, a trustee of The Africa−America Institute in New York, a Director of Project HOPE in Washington, D.C., and a Director of the NAACP Legal Defense and Educational Fund, Inc. Mr. Pfeiffer received a B.A. degree from Wesleyan University in Middletown, Connecticut and studied at Oxford University as a Rhodes Scholar, completing a B.A. and a M.A. in jurisprudence. He also holds a M.A. in Area Studies (Africa) from the School of Oriental and African Studies of the University of London and holds a Juris Doctorate from Yale University. Mr. Pfeiffer served as an officer on active and reserve duty in the United States Navy.
Parker W. Rush
Director Mr. Rush has served as the President and Chief Executive Officer and as a member of the Board of Directors of Republic Companies, Inc., a provider of property and casualty insurance, since December 2003. Prior to his employment with Republic, Mr. Rush served as a Senior Vice President and Managing Director at The Chubb Group of Insurance Companies in charge of the Southern U.S. based in Dallas, Texas and in various other capacities since February 1980.

= Audit Committee Financial Expert

Stock Information

NASDAQ:IRDM $8.55 - 0.05	Mar 11, 2010 3:59 PM ET
NASDAQ:IRDMW $2.99 - 0.10	Mar 11, 2010 2:14 PM ET
NASDAQ:IRDMU $9.29	Feb 12, 2010 10:59 AM ET
NASDAQ:IRDMZ $1.75	Mar 9, 2010 2:02 PM ET

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