2007:

• Erik Weihenmayer (1/10/07)
• Mike Milken (2007)
• Ken Chenault - CEO American Express (11/28/07)

2006:

• David Neeleman - Chairman and Chief Executive Officer, JetBlue Airways Corporation (1/20/06)
• Myron Scholes - (2/28/06)
• Michael Moskow - President, Federal Reserve Bank (3/7/06)
• Senator John Edwards (3/13/06)
• Christine Lagarde - French Minister of Foreign Commerce (4/11/2006)
• Timothy C. Draper - Founder, Managing Director, Draper Fisher Jurvetson Venture Capital Firm (4/11/06)
• Jack McGuire - Red Cross - CEO (4/21/06)
• Vaclav Klaus - President of the Czech Republic (4/26/06)
• General Peter Pace (5/18/06)
• Governor Mitt Romney (10/11/06)
• George Schultz - Former US U.S. Secretary of the Treasury, U.S. Secretary of State and Chicago Booth Professor (2006)

2005:

• Robert Lane - CEO John Deere (1/6/05)
• Tom Schoewe - CFO and EVP of Finance at Wal-Mart (3/30/05)
• Jeffrey Rodek - Executive Chairman of the Board of Hyperion (4/19/2005)
• Howard Marks - Chairman of Oatktree Capital (5/12/05)
• John Wood - Founder/CEO Room to Read (9/25/05)
• Jack Welch - Former CEO GE (10/7/05)

2004:

• Kevin Rollins - CEO Dell (2/18/2004)
• Jean-Marie Messier - Former CEO of Vivendi-Universal (5/3/2004)
• Sidney Taurel - CEO, Eli Lilly (10/20/04)

2003:

• Rick Steiner - Broadway Producer, The Producers (2003)
• Orit Gadiesh - Chairman of Bain & Company (2003)
• Paul O-Neil - Secretary of Treasury (2003)
• Pete Peterson - Chairman and Co-Founder of The Blackstone Group (2003)
• James Hance - CEO, Bank of America (11/12/2003)

2002:

• Jim Kilts - CEO of Gillette (2002)
• Betsey Johnson - CEO Kraft (2002)
• Robert E. Rubin - Chairman of the Executive Committee, and Member of the Office of the Chairman at Citigroup, Inc, U.S. Secretary of Treasury, 1995-1999 (2002)

2001:

• Jack Welch - former CEO GE (2001)
• Tom Siebel - CEO, Siebel Systems Inc (2001)
• Judson Green, CEO Navtech (10/10/01)

2000 and earlier:

• Lawrence Summers - took office as 27th president of Harvard University on July 1, 2001, Secretary of Treasury 1999-2001 (2000)
• William Johnston - President & COO New York Stock Exchange (1997)
• Douglas A "Sandy" Warner III - Chairman & CEO, .J. P. Morgan & Company (1997)