ADP Automatic Data Processing Inc

Automatic Data Processing, Inc. (Nasdaq:ADP) announced today that chief financial officer, Christopher R. Reidy, is scheduled to speak at the NASDAQ OMX 25th Investor Conference on Tuesday, December 7, 2010 at 8:30 a.m. London time. Mr. Reidy will provide an overview of the company and discuss ADP's opportunities in the large and growing markets it serves.

Investors and interested participants are invited to listen to the webcast which may be accessed at ADP's Investor Relations home page, http://www.investquest.com/InvestQuest/a/adp/ by clicking on the webcast icon. A replay of the webcast will be available for approximately two weeks after the event and may be accessed in the same manner as the live webcast. 

Automatic Data Processing, Inc. (Nasdaq:ADP), with nearly $9 billion in revenues and about 550,000 clients, is one of the world's largest providers of business outsourcing solutions. Leveraging over 60 years of experience, ADP offers a wide range of HR, payroll, tax and benefits administration solutions from a single source. ADP's easy-to-use, cost-effective solutions for employers provide superior value to companies of all types and sizes. ADP is also a leading provider of integrated computing solutions to auto, truck, motorcycle, marine and recreational vehicle dealers throughout the world.   For more information about ADP or to contact a local ADP sales office, reach us at 1.800.225.5237 or visit the company's Web site at www.ADP.com.

CONTACT:  Automatic Data Processing, Inc.
          Investor Relations
          973.974.5858