ISYS Integral Systems, Inc. (MM)

Integral Systems, Inc., (Nasdaq:ISYS) will announce its first quarter financial results on Wednesday, February 9, 2011. The Company will host an investor call at 11:00 a.m. EST the same day.

The conference call will be webcast live on Integral Systems' website. Integral Systems participants will include Chief Executive Officer and President, Paul Casner and Chief Financial Officer, Christopher Roberts.

Interested parties are invited to participate in the conference call by dialing 1.877.324.1958. A replay of the conference call can be heard from 2:00 p.m. EST, Wednesday, February 9, 2011, through 11:59 p.m. EST, Wednesday, February 16, 2011, by dialing 1.800.642.1687 or 1.706.645.9291 and asking for Conference ID number 38601763.

About Integral Systems

Integral Systems, Inc., of Columbia, Md., applies more than 25 years' experience to provide integrated technology solutions for satellite communications-interfaced systems. Customers have relied on the Integral Systems family of companies (Integral Systems, Inc., Integral Systems Europe, Lumistar, Inc., Newpoint Technologies, Inc., RT Logic and SAT Corporation) to deliver on time and on budget for more than 250 satellite missions. Our dedication to customer service has solidified long-term relationships with the U.S. Air Force, NASA, NOAA and nearly every satellite operator in the world. For more information, visit www.integ.com.

CONTACT: Andrew Miller
         Vice President, External Communications
         Integral Systems, Inc.
         Phone: 443.539.5124
         amiller@integ.com