ADMINISTAFF ANNOUNCES RODNEY WILLIAMSON AS NEW VICE PRESIDENT OF BENEFITS

HOUSTON, TX – August 19, 1998 – Administaff, Inc. (NYSE: ASF), a leading Professional Employer Organization (PEO), has named Rodney Williamson to the new position of vice president of benefits.

Williamson will be responsible for the design, administration, and operations for all of the company’s benefit plans, including health, 401(k), short- and long-term disability, workers’ compensation insurance, and employee assistance. He will be evaluating new benefit packages, as well as refining and enhancing existing plans. A certified employee benefits specialist (CEBS), Williamson has extensive experience in benefits administration, managed care network arrangements, sales and account management.

"As Administaff continues its aggressive growth programs, Rodney Williamson brings the expertise necessary to create and operate substantial benefit networks around the country," said Richard G. Rawson, Administaff’s executive vice president of administration and chief financial officer. "With more than 30 years of experience and a solid understanding of the customer/vendor relationship, Rodney is a perfect addition to our team."

Prior to joining Administaff, Williamson was a vice president for Blue Cross and Blue Shield, responsible for regional profitability, network management, and managed care sales. Before that, he spent 27 years with Aetna U.S. Healthcare.

Williamson earned his bachelor of arts degree in finance and economics from Saint Leo College in 1967 and obtained his professional designation as a CEBS from the International Foundation of Employee Benefit Plans and the Wharton School of the University of Pennsylvania in 1989. He has completed executive leadership and management courses through the Aetna Institute and is a Fellow of the International Society of Certified Employee Benefit Specialists.

Administaff is one of the nation’s leading Professional Employer Organizations, providing a comprehensive Personnel Management System that encompasses a broad range of services, including benefits and payroll administration, medical and workers’ compensation insurance programs, personnel records management, employer liability management, employee recruiting and selection, performance management, and performance improvement services to small- and medium-sized businesses. Administaff has 21 offices in 13 major markets and serves clients and worksite employees throughout the United States.

NOTE: The statements contained in this press release which 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 include regulatory and tax developments, competitive activities and increases in direct costs and operating expenses, which are described in further detail in the company’s filings with the Securities and Exchange Commission.