Administaff, Inc. (NYSE: ASF), a leading provider of human resources services for small and medium-sized businesses, today announced the Administaff $100,000 Business Sweepstakes. The contest, which will award a $100,000 business grant to the winning small or medium-sized business entrant, is the fourth sweepstakes offered by Administaff and follows the $100,000 prize awarded earlier this year.

In addition to the $100,000 first-place grant, sweepstakes entrants will have an opportunity to win a second or third-place cash prize of $25,000 or $10,000, respectively.

“Even with the world’s recent economic challenges, the entrepreneurial drive of American business owners remains strong and resilient. It is this resilience, and the accompanying determination to succeed, that will lead our country through tough times,” said Jay E. Mincks, Administaff executive vice president of sales and marketing. “Administaff’s unflagging commitment to helping these small and medium-sized companies succeed is reflected in our continuation of the Administaff $100,000 Business Sweepstakes. The $100,000 prize will give the winner a once-in-a-lifetime opportunity to build upon their existing success and to continue to grow their company, which is welcome news in today’s economy.”

Businesses with at least 10 and no more than 2,000 full-time employees located in the United States are eligible to enter the sweepstakes at http://www.administaff.com. Entrants are required to explore an interactive micro site, Enhance Your State of Business, and correctly answer questions related to the experience. A complete list of official rules is also located on the Web site. The contest ends at 5 p.m. CT on Dec. 31, 2009. Winners will be randomly selected from all qualified entries and announced in January 2010.

Administaff is the nation’s leading professional employer organization (PEO), serving as a full-service human resources department that provides small and medium-sized businesses with administrative relief, big-company benefits, reduced liabilities and a systematic way to improve productivity. The company operates 50 sales offices in 23 major markets. For additional information, visit Administaff’s Web site at http://www.administaff.com.

Administaff, Inc.
Investor Relations Contact:
Senior Vice President, Finance
Chief Financial Officer and Treasurer
Douglas S. Sharp, 281-348-3232
Douglas_Sharp@Administaff.com
or
News Media Contact:
Managing Director, Marketing and
Corporate Communications
Jason Cutbirth, 281-312-3085
Jason_Cutbirth@Administaff.com