On Assignment to Attend Two Conferences in September 2008

CALABASAS, Calif.--(Business Wire)--
On Assignment, Inc. (NASDAQ:ASGN), a diversified professional
staffing firm providing flexible and permanent staffing solutions in
specialty skills including Laboratory/Scientific,
Healthcare/Nursing/Physicians, Medical Financial, Information
Technology and Engineering, today announced that President and Chief
Executive Officer Peter Dameris and Senior Vice President and Chief
Financial Officer Jim Brill are scheduled to make the following
investor presentations in September:

September 18, 2008 at 12:15 p.m. Eastern Time at the 2008 CL King
Best Ideas Conference held at the Omni Berkshire Hotel in New York,
NY.

September 22, 2008 at 1:00 p.m. Eastern Time at the 2008 Global
Life Sciences Conference held at the Grand Hyatt Hotel in New York,
NY.

Slides for both investor presentations will be available on the
Company web site at www.onassignment.com in the Investor Relations
section under Events and Presentations. Through this link, visitors
will be able to access the Company's presentations.

About On Assignment

On Assignment, Inc. (NASDAQ:ASGN), is a diversified professional
staffing firm providing flexible and permanent staffing solutions in
specialty skills including Laboratory/Scientific,
Healthcare/Nursing/Physicians, Medical Financial, Information
Technology and Engineering. The corporate headquarters is located in
Calabasas, California. On Assignment, Inc. was founded in 1985 as Lab
Support and went public in 1992. The company's branch network
encompasses over 80 branch offices across the United States, United
Kingdom, Netherlands, Ireland, Belgium, and also provides physicians
in Australia and New Zealand.

Safe Harbor

Certain statements made in this news release are "forward-looking
statements" within the meaning of Section 21E of the Securities
Exchange Act of 1934, as amended, and involve various risks and
uncertainties. Forward-looking statements include statements regarding
the Company's anticipated financial and operating performance in 2007.
All statements in this release, other than those setting forth
strictly historical information, are forward-looking statements.
Forward-looking statements are not guarantees of future performance,
and actual results might differ materially. In particular, Company
makes no assurances that the estimates of revenues and earnings per
share set forth above will be achieved. Factors that could cause or
contribute to such differences include actual demand for our services,
our ability to attract, train and retain qualified staffing
consultants, our ability to remain competitive in obtaining and
retaining temporary staffing clients, the availability of qualified
temporary nurses and other qualified temporary professionals,
management of our growth and integration of our completed
acquisitions, continued performance of our enterprise-wide information
systems, and other risks detailed from time to time in our reports
filed with the Securities and Exchange Commission, including our
Annual Report on Form 10-K for the year ended December 31, 2006, as
filed with the SEC on March 16, 2007. We specifically disclaim any
intention or duty to update any forward-looking statements contained
in this news release.

On Assignment, Inc.
James Brill, Sr. VP and Chief Financial Officer
818-878-7900
jim.brill@onassignment.com

Copyright Business Wire 2008