AMERICAN EXPRESS LAUNCHES CO-BRANDED WEB SITE TO MARKET ADMINISTAFF'S SERVICES

HOUSTON, TX – November 23, 1998 – Administaff, Inc. (NYSE: ASF), a leading Professional Employer Organization (PEO), today announced that American Express has expanded its marketing of Administaff’s personnel management services through a co-branded web site at www.americanexpress.com/administaff/. This website represents the latest initiative in the marketing alliance announced earlier this year between Administaff and American Express Travel Related Services Company, Inc. The alliance benefits American Express small business customers by offering Administaff services that can alleviate the administrative burden of managing employees.

"The launch of this web site is especially exciting because we are finding that many high- quality prospects are coming through the Internet," said Jay E. Mincks, Administaff vice president of sales and marketing.

"By promoting Administaff’s professional employer services on a joint web site, American Express is helping to guide the owners of small and medium-sized companies to a better way of doing business," said Whitney Stevens, American Express vice president of new business development.

The new web site includes an overview of Administaff and its comprehensive range of personnel management services, testimonials from Administaff clients, and an exclusive offer for American Express referrals.

Business owners will be guided to the new web site through banner advertising purchased on various commercial Internet search engines and sites that serve small and medium-sized businesses.

In addition to the new web site, the marketing mix for the Administaff and American Express alliance includes telemarketing to Small Business Corporate Cardmembers and service establishments, and referrals from the American Express Financial Advisors and American Express Tax and Business Services.

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 training and development services to small and medium-sized businesses. The company has 22 offices in 14 major markets and serves clients and worksite employees throughout the United States.

(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 environment 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.)