Automatic Data Processing, Inc. (NASDAQ: ADP), with nearly $9 billion in revenues and over 585,000 clients, is one of the world's largest providers of business outsourcing solutions. Leveraging nearly 60 years of experience, ADP offers the widest range of HR, payroll, tax and time & attendance solutions from a single source. Our easy-to-use solutions provide superior value to organizations of all types and sizes.