Press Release

RadiSys To Participate In The Silicon Forest Technology & Financial Forum

HILLSBORO, OR — August 12, 2009 — RadiSys® Corporation (Nasdaq: RSYS), a leading global provider of advanced embedded solutions, will participate in the Silicon Forest Technology & Financial Forum that will be held on August 25-26, 2009. This event takes institutional investors, research analysts, buy-side analysts, sell-side analysts, key portfolio managers, and venture capitalists inside five public and four private Oregon technology companies.

Investors will meet at the RadiSys headquarters in Hillsboro, Oregon on Tuesday, August 25, 2009 from 11:00 a.m. to 12:20 p.m. PT. Scott Grout, RadiSys President and CEO and other members of the management team will be presenting an overview of RadiSys and the Company's strategy. Attendees will also be able to see product demonstrations of the Company's latest new offerings and will have time to meet with the management team. For more information about the event and to register, visit http://www.techamerica.org/siliconforesttechnologyandfinancialforum.

The presentation portion of the event will also be simultaneously webcast on the RadiSys investor relations website on August 25, 2009 at 11:15 a.m. PT at http://investor.radisys.com/. A replay of the event will be available on the RadiSys investor relations website for at least 30 days.