BALTIMORE (January 26, 2011) – Science Applications International Corporation (SAIC) (NYSE:SAI) has announced plans to move approximately 150 employees to 6210 Guardian Gateway, a new 75,000 square foot building under construction at The Government and Technology Enterprise (GATE) project, a 413-acre business community located within Aberdeen Proving Ground (APG) in Harford County. The FORTUNE 500® scientific, engineering, and technology applications company has signed a lease with St. John Properties, Inc. for 32,500 square feet of space at the three-story Class “A” building. Delivery of the Leadership in Energy and Environmental Design (LEED)-certified building is expected in second quarter 2011, with the move-in of SAIC employees expected for third quarter of this year.

Headquartered in McLean, Virginia, SAIC employs approximately 45,000 workers. It has provided support to numerous Army and Department of Defense programs at APG for more than 20 years, and also services customers within the U.S. Department of Homeland Security, other U.S. Government civil agencies and select commercial markets. SAIC operates offices in locations throughout the Harford County marketplace to service its APG requirements.

6210 Guardian Gateway has been designed to meets the requirements for LEED Silver-certification and includes a high-efficiency HVAC (heating, ventilating and air conditioning) system, high performance windows, lavatory fixtures with sustainable elements, a white thermoplastic polyolefin (TPO) roofing system, wetland/forest preserves and significant open space and drought-tolerant landscaping, among other features. The balance of the building is being marketed to potential office users.

“SAIC is recognized as a significant and long-time service provider to the Army and the Department of Defense that provides excellent opportunities for skilled and highly-educated workers, and this new lease represents a major win for The GATE and the surrounding region,” stated Jerry Wit, Senior Vice President–Marketing for St. John Properties. “This is the latest in a growing list of companies that have chosen our product for the numerous inside-the-gate advantages, including immediate access to the customer, security benefits and interaction with similar defense-related organizations.”

The GATE is the only commercial real estate development located within Aberdeen Proving Ground. St. John Properties has completed or is constructing nine office buildings and research and development (R&D) buildings totaling more than 526,000 square feet of space, which are designed to satisfy the ongoing demand of government agencies and contractors who support the various commands on APG. St. John Properties estimates the total build-out of the project to be approximately two million square feet over more than 10 years.

St. John Properties, Inc., founded in 1971 as MIE Properties, owns and has developed more than 14 million square feet of R&D/flex, office, warehouse and retail space in Maryland, Colorado, Louisiana, Virginia and Wisconsin. Fore more information about the company, visit sjp.mu9b0uf9-liquidwebsites.com.

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For more information, contact:

Al Cunniff, Director of Marketing, St. John Properties, Inc.

410-369-1277