ADMINISTAFF OPENS NEW ATLANTA SERVICE CENTER

HOUSTON – Sept. 8, 1999 – Administaff, Inc. (NYSE:ASF), a leading professional employer organization (PEO), today announced the opening of its new Atlanta service center.

The 40,000 square foot facility, located in Kennesaw, Ga., will handle payroll, benefits, and other human resource services for Administaff clients located primarily in the eastern United States. The facility also will work in conjunction with the company’s two other service centers, located in Houston and Dallas, to provide mutual backup systems for ensuring business continuation in the event of an emergency, such as severe weather conditions.

"This regional service center is designed to help us keep pace with the continuing growth of our client base," said A. Steve Arizpe, Administaff’s executive vice president of client services. "It’s also in line with our goal to locate service professionals closer to our clients and worksite employees. Ultimately, we expect the center to serve approximately 40,000 worksite employees."

Total employment at the new facility is expected to be about 50 people by the end of this year and approximately 200 by year-end 2000.

The service center is located in Four Barrett Lakes, a two-story building on Barrett Parkway between Interstate 75 and U.S. 41. The address is 1940 Lodge Rd., NW, Suite 100, Kennesaw, GA 30144; and the phone number is 678-354-1430. Administaff also operates two sales offices in Atlanta.

Administaff clients and suppliers, along with community and business leaders, will be invited to an open-house ceremony at the new facility in early October.

Administaff provides small and medium-sized businesses with a comprehensive Personnel Management System that includes benefits and payroll administration, medical and workers’ compensation insurance programs, personnel records management, employer liability management, employee recruiting and selection, performance management, and training and development services. The company currently has 25 offices in 15 major markets and serves clients and worksite employees throughout the United States. For additional information, visit the company’s web site at www.administaff.com.

(Note: The statements contained in this press release that are not historical facts are forward-looking statements that involve a number of risks and uncertainties. Therefore, the actual results of future events described in such forward-looking statements could differ materially from those stated in such forward-looking statements. Among the factors that could cause actual results to differ materially are: (i) regulatory and tax developments; (ii) changes in the company’s direct costs and operating expenses; (iii) the effectiveness of the company’s sales and marketing efforts, including its marketing agreement with American Express, American Express’ ability to set qualified appointments and the company’s ability to convert those appointments into sales; (iv) the estimated costs and effectiveness of capital projects and investments in technology and infrastructure; (v) changes in the competitive environments in the PEO industry; and (vi) the effectiveness and estimated costs of the company’s Year 2000 conversion and contingency plans. These factors are described in further detail in the company’s filings with the Securities and Exchange Commission.)