MANAGEMENT BIOGRAPHIES

GRAHAM WESTON Mr. Weston has served as the Chairman of our since July 2005. He served as the Co-Chairman of our board of directors from August 2001 to July 2005 and as our from August 2001 to April 2006. Mr. Weston is also the Chief Executive Officer of Weston Properties, a real estate company which owns or manages industrial and office properties. He received his B.S. degree from Texas A&M University.

A. LANHAM NAPIER Mr. Napier has served as our chief executive officer since April 2006 and as our President and a member of our board of directors since August 2001. He served as our from May 2000 to January 2003. From June 1997 to April 2000, Mr. Napier served as a director for Silver Brands Partners, an investment company. From May 1993 to June 1995, he worked as an analyst for Merrill Lynch and Co., an investment-banking firm. Mr. Napier received his B.A. in economics from Rice University and his M.B.A. from Harvard University.

BRUCE R. KNOOIHUIZEN Mr. Knooihuizen has served as our Senior , chief financial officer and Treasurer since he joined us in February 2008. From 1996 until February 2008, Mr. Knooihuizen was Executive Vice President and Chief Financial Officer of Dobson Communications, a provider of rural and suburban wireless telephone services. From 1994 to 1996, Mr. Knooihuizen was Chief Financial Officer and Secretary for The Westlink Co. in San Diego, a wireless provider which was formerly an operating unit of US West. Previously, he was Treasurer and Controller of Ameritech Cellular from 1990 to 1994; Director, Accounting Operations of Ameritech Applied Technologies from 1988 to 1990; and Controller of Ameritech Properties in 1988, all located in Chicago. From 1980 to 1988, he held various financial and accounting positions with The Ohio Bell Telephone Company. Mr. Knooihuizen received his B.S. in finance from Miami University in Oxford, Ohio and his M.B.A in finance from the University of Cincinnati.

GLENN REINUS Mr. Reinus has served as our Senior Vice President, Worldwide Sales since he joined us in March 2003. From 1998 until August 2001, Mr. Reinus was Vice President, Corporate Business of WebEx, a leading provider of Web communications services. From 1996 until 1998, Mr. Reinus served as Vice President of Business Development of BackWeb Technologies, an automated knowledge distribution solutions company. From 1995 to 1996, Mr. Reinus served as Assistant for the Internet Business Unit and Senior Director of Business Development at Quarterdeck . Mr. Reinus received his B.S. in marketing and business administration from California State University, Northridge.

ALAN SCHOENBAUM Mr. Schoenbaum has served as our Senior Vice President, and Secretary since he joined us in December 2005. From 1991 until December 2005, Mr. Schoenbaum was a partner in the San Antonio office of the law firm Akin Gump Strauss Hauer & Feld LLP. He received his B.A. in English and his law degree from the University of Texas at Austin.

MANAGEMENT BIOGRAPHIES 2

LEW MOORMAN Mr. Moorman has served as our Senior Vice President and Chief Strategy Officer since April 2008. Prior to that time, Mr. Moorman served as our Senior Vice President, Strategy and Corporate Development from January 2004 until April 2008, as our from 2001 to December 2003 and as our Vice President, Strategy and Product Development from 2000 to 2001. Before joining Rackspace, Mr. Moorman held several positions at the management consulting firm McKinsey & Company, advising a variety of high technology clients on critical strategic issues. Mr. Moorman received his B.A. from Duke University and his law degree from Stanford Law School.

DAVID BELLE-ISLE Mr. Belle-Isle has served as our Senior Vice President, Human Resources since he joined us in October 2007. From 2004 until October 2007, Mr. Belle-Isle was Senior Vice President, Organization and Process Excellence at Intuit, a leading provider of personal and business financial management software. From 2001 until 2004, he was Vice President, Human Resources and Organizational Excellence at Intuit. From 2000 until 2001, Mr. Belle-Isle was Chief People Officer at Leapsource, a business processing outsource provider. From 1994 to 2000, he was founder and Chief Executive Officer of Insight Consulting, a human resources consulting firm. Mr. Belle-Isle received his B.S. and M.S. degrees from Springfield College and his Ph.D. in human and organizational development from the University of Northern Colorado.

KLEE KLEBER Mr. Kleber has served as our Vice President, Marketing and Product Development since he joined us in March 2007. From 2004 until March 2007, Mr. Kleber was Vice President, Marketing for Segway, the manufacturer and distributor of the Segway Personal Transporter. From 2003 until 2004, he managed U.S. marketing for Dell’s corporate desktop and notebook lines. From 2000 until 2003, he was a Vice President and General Manager in Dell’s European operation, serving in Germany and the U.K. From 1998 until 2000, he led Dell’s U.S. consumer marketing organization. From 1997 until 1998, he ran marketing for Dell in Japan. From 1994 until 1997, he managed domestic product marketing for Dell’s consumer and small- business product lines. Mr. Kleber received his B.A. degree in economics and German from Rice University and his M.B.A. from the Wharton School at the University of Pennsylvania.

KIPRIAN MILES Mr. Miles has served as our Vice President, Information Technology since he joined us in May 2007. From 2002 until May 2007, Mr. Miles served as Vice President, Chief Information Officer of Golfsmith International Holdings, a leading retailer of golf equipment, apparel and accessories. From 1999 until 2002, Mr. Miles was Vice President, Marketing Systems and Chief Architect at Office Depot and was responsible for technology decisions, information infrastructure, and marketing and sales support systems. From 1997 to 1999, Mr. Miles was Chief Architect at Alcoa, where he was responsible for developing and managing the technology infrastructure. Mr. Miles received his B.S. in physics from the University of Michigan-Dearborn.

TROY TOMAN Mr. Toman has served as our Vice President, Operations since he joined us in September 2006. From 2004 until September 2006, he was Vice President of Marketing at Kazeon Systems, an information access technology company which provides e- discovery solutions. From 2003 until 2004, Mr. Toman was senior director, utility computing at Veritas Software, a storage management software company which was acquired by Symantec in 2005. From 1998 until 2002, Mr. Toman was Vice President and General Manager, Search Division at Inktomi Corporation, a software company which was acquired by Yahoo! Inc. in 2002. From 1996 until 1998, Mr. Toman was Group Marketing Manager, Java OS at Sun Microsystems. From 1988 until 1996, he was Program Director, AIX Solution Developer Programs at IBM. Mr. Toman received his B.S. in computer sciences from Texas A&M University.

MANAGEMENT BIOGRAPHIES 3

JOHN LIONATO Mr. Lionato has served as our Senior Vice President, Customer Care since he joined us in May 2008. From January 2006 until March 2008, Mr. Lionato was a Vice President at Intuit in its Information Technology organization where he led business intelligence and employee support. From September 2004 to December 2005, he was the Center of Excellence Leader for Intuit’s Process Excellence organization where he was also the executive coach to Intuit’s CIO and the IT leadership team. From May 2002 until August 2004, Mr. Lionato was the Global Support Leader for Intuit’s Outsourced Payroll division at which time he also served as a director on the board of directors of CRI, Inc., a wholly owned division of Intuit. From January 2001 until April 2002, Mr. Lionato was the Supportability Leader in the Quickbooks division of Intuit. Prior to joining Intuit, Mr. Lionato held a variety of leadership positions at General Electric in Information Technology, Mergers & Acquisitions, Operations, and Quality. Mr. Lionato received his B.S. in Psychology from Fordham University in NY and his law degree from Quinnipiac University College of Law in Connecticut.