On Assignment to Participate in Investor Conference in August

On Assignment, Inc. (NYSE: ASGN) will participate in the 2013 Avondale Healthcare 1-1 Conference at the Boston Harbor Hotel in Boston with Jim Brill, Chief Administrative Officer and Treasurer and Ted Hanson, Chief Financial Officer of Apex Systems, a division of On Assignment, Inc., hosting investor meetings on Wednesday, August 14th.

The presentation for this conference will be available on the Company web site at www.onassignment.com in the Investor Relations section under “Presentations.”

About On Assignment

On Assignment, Inc. (NYSE: ASGN), 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 was founded in 1985 and went public in 1992. The corporate headquarters are located in Calabasas, California, with 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.

On Assignment, Inc.Ed PierceChief Financial Officer818-878-7900