Teradata Corporation

Michael Koehler. Mr. Koehler is President and Chief Executive Officer of Teradata. Previously, Mr. Koehler served as Senior Vice President, Teradata Division of NCR from 2003 to 2007. From September 2002 until March 2003, he was the Interim Teradata Division Leader, Teradata Division. From 1999 to 2002, Mr. Koehler was Vice President, Global Field Operations, Teradata Division, and held management positions of increasingly greater responsibility at NCR prior to that time. He joined our board in August 2007.

Stephen Scheppmann. Stephen Scheppmann has served as Executive Vice President and Chief Financial Officer of Teradata since September 4, 2007. He served as Executive Vice President and Chief Financial Officer of Per-Se Technologies, Inc., a leading provider of administrative healthcare industry services, from May 2006 until May 2007, following the completion of that company’s acquisition. From 2000 to May 2006, Mr. Scheppmann served as Executive Vice President and Chief Financial Officer for NOVA Information Systems, Inc., and, from 1988 to 2000, he was Senior Vice President and Chief Financial Officer of Larson-Juhl, Inc. Since January 2006, Mr. Scheppmann has served as a member of the Board of Directors of eResearch Technology, Inc., a publicly-traded biotechnical services and technology company, and has been chairman of its Audit Committee since April 2006.

Saundra Davis. Saundra Davis is Chief Human Resources Officer of Teradata. Ms. Davis served as Vice President, Human Resources, Teradata Division of NCR from January 2004 to September 2007. Prior to this position, Ms. Davis served as Vice President, Human Resources, Corporate Infrastructure, at NCR from January 2003 to December 2003, and as Vice President, Human Resources, Systemedia Division of NCR from June 2000 to December 2002. Ms. Davis joined NCR in 1985 and has since held a number of positions of increasing responsibility in human resources.

Robert Fair. Robert Fair is Executive Vice President, Global Field Operations of Teradata. Mr. Fair served as Vice President, Business Development and Global Marketing, Teradata Division of NCR from April 2003 to September 2007. From March 2000 to April 2003, he was Vice President, Americas Communications Industry, Teradata Division. Mr. Fair began his career at NCR in 1984 and held a number of positions of increasing responsibility in the areas of sales, consulting services and marketing.

Daniel Harrington. Daniel Harrington has been Executive Vice President, Technology and Support Services of Teradata since October 2007. Mr. Harrington served as Vice President, Customer Services, Teradata Division of NCR, from January 2005 until that time. Prior to this position, from April 1999 to December 2004, he was Vice President, Northern Europe, Teradata Division with responsibility for Europe sales in 2004. Mr. Harrington joined NCR in 1985 and held a number of positions of increasing responsibility in the areas of sales, marketing and product management.

Bruce Langos. Bruce Langos is Chief Operations Officer of Teradata. Mr. Langos was Senior Vice President, Global Operations of NCR, from May 2006 to September 2007. From 1996 until that time, Mr. Langos was Vice President, Business Operations, Teradata Division. Mr. Langos joined NCR in 1976 and held positions of increasing responsibility in sales, marketing, product management and strategic planning.

Darryl McDonald. Darryl McDonald serves as Executive Vice President, Applications, Business Development & Chief Marketing Officer of Teradata. Prior to that he was the Chief Marketing Officer from September 2007 to April 2010. Mr. McDonald was Vice President, Global Consulting Services, Teradata Division of NCR from April 2003 to September 2007. From 1997 until April 2003, Mr. McDonald was Vice President, Americas Retail Industry, Teradata Division. Mr. McDonald joined NCR in 1982 and has since held a number of positions of increasing responsibility in the areas of sales and consulting.

Laura Nyquist. Laura Nyquist is the General Counsel and Secretary of Teradata. Ms. Nyquist served as Deputy General Counsel and Chief Counsel, Business Counsel Group, NCR, from October 2006 to September 2007. Prior to this position, Ms. Nyquist was Chief Counsel, Financial Solutions Division from 2004 to September 2006, and was Vice President, Corporate Affairs, and Secretary to the Board of Directors of NCR from 1999 to 2004. Ms. Nyquist joined NCR in 1986 and held a number of positions of increasing responsibility at NCR until she joined Teradata.