| | New York 01/18/2013 MARKUS DIETHELM UBS |
| | Houston 01/15/2013 JANET LANGFORD KELLY CONOCOPHILLIPS |
| | Los Angeles 11/30/2012 DAVID SCOTT AMGEN |
| | Paris 05/24/2012 DR. PETER HERBEL TOTAL |
| | Montreal 05/08/2012 MARTINE TURCOTTE BELL CANADA |
| | London 11/10/2011 SIMON EVANS ARCELORMITTAL |
| | New York 11/08/2011 GEORGE DALTON DUBAI WORLD |
| | Washington, D.C. 06/02/2011 MICHAEL BAILEY BECHTEL GROUP, INC. |
| | London, United Kingdom 04/08/2011 CONNIE COLLINGSWORTH THE BILL & MELINDA GATES FOUNDATION |
| | Washington, D.C. 01/20/2011 DEBORAH MAJORAS PROCTER & GAMBLE |
| | New York 11/16/2010 ROBERT CONNOLLY BLACKROCK |
| | Washington, D.C. 10/14/2010 THOMAS SAGER DUPONT |
| | New York 09/14/2010 LOUISE PENTLAND NOKIA |
| | New York 02/17/2010 MARC FIRESTONE KRAFT FOODS |
| | Washington, D.C. 12/04/2009 JEFFREY FERGUSON CARLYLE GROUP |
| | New York 10/07/2009 LAWRENCE JACOBS NEWS CORPORATION |
| | Minneapolis 05/05/2009 TERRANCE CARLSON MEDTRONIC |
| | New York 03/31/2009 MICHAEL FRICKLAS VIACOM |
| | New York 06/10/2008 RICHARD BENNETT HSBC |
| | London, England 01/22/2008 BRADFORD SMITH MICROSOFT |
| | Washington, D.C. 10/11/2007 ROBERT BOSTROM FREDDIE MAC |
| | San Francisco 09/27/2007 CHARLES JAMES CHEVRON CORP. |
| | Washington, D.C. 06/12/2007 DAVID LEITCH FORD MOTOR COMPANY |
| | Boston 04/25/2007 JEAN-PAUL BISNAIRE MANULIFE FINANCIAL |
| | New York 01/24/2007 DR. BEAT HESS ROYAL DUTCH SHELL PETROLEUM PLC |
| | Washington, D.C. 10/18/2006 JAY B. STEPHENS RAYTHEON COMPANY |
| | New York 10/13/2006 PETER BESHAR MARSH & MCLENNAN COMPANIES |
| | Santa Clara 10/10/2006 D. BRUCE SEWELL INTEL CORPORATION |
| | New York 09/28/2006 PETER KURER UBS AG |
| | Philadelphia 09/19/2006 RUPERT BONDY GLAXOSMITHKLINE |
| | Washington, DC 07/13/2006 JAMES COMEY LOCKHEED MARTIN |
| | Los Angeles 03/29/2006 HAYWARD DAN FISK COMPUTER SCIENCES CORPORATION |
| | New York 01/18/2006 HANS PETER FRICK NESTLE SA |
| | New York 05/12/2005 MICHAEL HELFER CITIGROUP |