Paychex Ranked 40th on BusinessWeek 50 List of Best Performing U.S. Companies

Magazine's 11th annual ranking names "best in class" from S&P 500

ROCHESTER, N.Y.--(BUSINESS WIRE)--

Paychex, Inc. is among the 50 best performing companies in the United States, according to BusinessWeek magazine. Paychex, a leading provider of payroll and human resource services, ranked No. 40 on the 2007 BusinessWeek 50. The companies on that list represent the magazine's selections as the "best in class" from each of the 10 sectors of the Standard & Poor's 500 stock index.

"Paychex is honored to be part of this prestigious list," said Jonathan J. Judge, Paychex president and CEO. "This is a terrific recognition of the commitment we make every day to provide our 543,000 clients with the best products and services and to create exceptional value for our shareholders."

In announcing its 11th annual BusinessWeek 50, the magazine wrote that, "The Class of 2007 is chock full of companies that are rewriting the rules of engagement in their industries. They are the agitators, the pioneers, and the game changers that are leading the way in the 21st century."

To compile the BW50, BusinessWeek uses a proprietary process that this year focused on two key measures: how well each company's management has been using the capital at its disposal and sales growth. The 2007 BW50 is in the March 26 issue of BusinessWeek. Additional content can be found at www.businessweek.com/bw50.

About Paychex

Paychex, Inc. (NASDAQ:PAYX) is a leading provider of payroll, human resource, and benefits outsourcing solutions for small- to medium-sized businesses. The company offers comprehensive payroll services, including payroll processing, payroll tax administration, and employee pay services, including direct deposit, check signing, and Readychex(R). Human Resource Services include 401(k) plan recordkeeping, workers' compensation administration, section 125 plans, a professional employer organization, time and attendance solutions, and other administrative services for business. Paychex was founded in 1971. With headquarters in Rochester, New York, the company has more than 100 offices and serves approximately 543,000 payroll clients nationwide. For more information about Paychex and our products, visit www.paychex.com.

Source: Paychex, Inc.

Released March 16, 2007