OPNET Technologies Moves Corporate Headquarters to Maryland, Software Developer Increases Space Capacity to Accommodate Growth

WASHINGTON, DC -- July 10, 2000 -- OPNET Technologies, Inc., a provider of intelligent network management software, has signed a ten-year lease for 60,466 square feet of office space in a new retail and office complex under construction at 7255 Woodmont Avenue in Bethesda, Maryland. The company, currently based in the Northwest section of Washington, DC, plans to move into the new facility by the end of 2000.

OPNET, with offices throughout the United States, has approximately 150 employees in its Washington-area headquarters. The company will become the new building’s primary tenant and will occupy the top three floors of the five-story structure, owned by Federal Realty Investment Trust. As part of the lease negotiations, OPNET was granted primary external signage rights for the property, currently known as Woodmont East.

"We are pleased to be joining the rapidly expanding Montgomery County technology community," said Alain Cohen, President of OPNET. "This move will allow OPNET's workforce to enjoy the convenience and excitement of Bethesda's high-quality urban environment. We believe our new location will help us continue to attract and retain the high-caliber employees that are so important to our business."

The new building will include retail shops at street level, a movie theater below ground, and commercial office space on the second floor. Prior to finalizing its lease with the building’s owner, OPNET negotiated with county and state agencies to ensure that the business and tax climate in Bethesda would be appropriate for a growing technology firm such as OPNET.

"Montgomery County’s technology-based business has grown exponentially over the past few years, and we are pleased to have OPNET Technologies join our dynamic list of cutting-edge tech firms," said Montgomery County Executive Douglas M. Duncan.

Arthur G. Greenberg, corporate managing director with Julien J. Studley, Inc., represented OPNET in this transaction.

About OPNET Technologies, Inc.

The OPNET family of intelligent network management software enables our customers to optimize the performance and maximize the availability of communications networks and networked applications. The OPNET product suite combines predictive simulations and a comprehensive understanding of networking technologies to enable network professionals to more effectively design and deploy networks, diagnose network and application performance problems, and predict the impact of proposed network modifications.

The flagship products are: OPNET IT DecisionGuru, enabling service providers and enterprises to more effectively design and deploy networks and to predict the performance of their networks and applications; OPNET Modeler, enabling network equipment manufacturers to accelerate the design and development of network equipment and communication protocols; and OPNET Netbiz, accelerating the sales process for service providers and network-equipment manufacturers by automating network design and proposal generation.

###

Note to editors: The word OPNET is spelled with all upper-case letters.

OPNET Media Contact:
Margarita Castillo
OPNET Technologies, Inc.
(240) 497-3000
Media@opnet.com
www.opnet.com

OPNET Investor Relations:
Mel Wesley
OPNET Technologies
(240) 497-3000
ir@opnet.com
www.opnet.com