Workforce Newsroom

ROSELAND, New Jersey -- November 29, 2011 -- Automatic Data Processing, Inc. (Nasdaq:ADP) announced today that chief financial officer, Christopher R. Reidy, is scheduled to speak at the NASDAQ OMX 27th Investor Conference on Wednesday, December 7, 2011 at 8:00 a.m.London time. Mr. Reidy will provide an overview of the company and discuss ADP's opportunities in the 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 about $10 billion in revenues and approximately 570,000 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 human resource, payroll, tax and benefits administration solutions from a single source. ADP's easy-to-use 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, recreational vehicle, heavy manufacturing, and agricultural 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 ADP www.adp.com.

###