On Assignment Selected To Barron’s 400 Index

On Assignment, Inc. (NYSE:ASGN), a leading global provider of diversified professional staffing solutions, announced today that the Company was recently selected to the Barron’s 400 Index for the fifth time since the index’s inception.

The Barron’s 400 Index selects stocks based on the strength of the financial characteristics of a company related to growth, market value, profitability, and cash flow. The index has outperformed the broader U.S. equity market by more than five percentage points per year in the last decade – a clear indicator of the quality of the companies it selects.

Peter Dameris, President and CEO of On Assignment, commented, “We are very pleased to have once again been selected to the Barron’s 400 Index. To be among a small percentage of companies selected affirms the overall strength of On Assignment’s financial profile and our value as an investment opportunity for our stockholders.”

For more information about the index and its methodology you may refer to www.barrons400.com or to http://www.marketgrader.com/MGMainWeb/barrons/barrons.jsp

About On Assignment

On Assignment is a leading global provider of in-demand, skilled professionals in the growing technology, healthcare, and life sciences sectors, where quality people are the key to success. The Company goes beyond matching résumés with job descriptions to match people they know into positions they understand for temporary, contract-to-hire, and direct hire assignments. Clients recognize On Assignment for their quality candidates, quick response, and successful assignments. Professionals think of On Assignment as career-building partners with the depth and breadth of experience to help them reach their goals.

On Assignment, which is based in Calabasas, California, was founded in 1985 and went public in 1992. The Company has a network of approximately 130 branch offices throughout the United States, Canada, United Kingdom, Netherlands, Ireland, and Belgium. Additionally, physician placements are made in Australia and New Zealand. To learn more, visit http://www.onassignment.com.

About Barron’s 400

The Barron's 400 Index, or B400, was jointly developed by Barron's and MarketGrader and introduced on the cover of the September 3, 2007, issue of Barron's magazine. The index "collects the most fundamentally sound and attractively priced stocks from all corners of the market, using a proven and disciplined stock-selection process." It does not strive to be a benchmark representing the overall market, but rather to give investors access to America's most promising stocks.

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