Lockheed Martin Corp. of Bethesda won a four-year, $87 million contract to provide personnel and equipment to handle voice, video and data communications services for the Defense Department's Central Command.

Northrop Grumman Information Technology of Herndon won a six-year, $29.4 million contract from the National Institutes of Health to develop a database and Web portal to centralize and integrate immunology data.

SI International Inc. of Reston won a one-year, $2.4 million contract from the Army Research Lab to develop an enterprise-wide database.

SRA International Inc. of Fairfax won a five-year, $19.2 million contract from the Defense Department to support its Logistics Automation Identification Technology Office.

Thomas & Herbert Consulting LLC of Silver Spring won six new contracts worth more than $20 million to support several Housing and Urban Development Department systems.

Lockheed Martin Corp., Maritime Systems and Sensors of Manassas won a $41.9 million contract from the Naval Sea Systems Command for Virginia Class submarine production material under the acoustic rapid commercial off-the-shelf insertion program.

QinetiQ Inc. of Washington won a $6.1 million contract from the Space and Naval Warfare Systems Center for improved specific emitter identification systems and engineering support. The system can be used for friendly or enemy identification and fingerprinting.

Sybase Inc. of Bethesda won a $1.1 million contract from the Navy for SPS technical services.

Child Trends Inc. of Washington won a $2.5 million contract from the General Services Administration for management, organizational and business improvement services.

Chadwick Associates Inc. of Washington won a $1.3 million contract from the General Services Administration for management, organizational and business improvement services.

I. M. Systems Group Inc. of Kensington won a $6 million contract from the General Services Administration for environmental services.

STAR Associates Inc. of Baltimore won a $2.5 million contract from the General Services Administration for management, organizational and business improvement services.

HomeSource Real Estate Asset Services Inc. of Gaithersburg won a $19.7 million contract from the Housing and Urban Development Department for management and marketing services.

Management Systems International of Washington won a $50 million contract from the Agency for International Development for analytical services.

SM Consulting Inc. of Linthicum won a $2.3 million contract from the General Services Administration for language services.

Johns Hopkins University, Applied Physics Laboratory of Laurel won a $2.5 million contract from the Homeland Security Department and the Secret Service for ancillary scientific and engineering research development.

Democracy International Inc. of Washington won a $50 million contract from the Agency for International Development for analytical services.

Presearch Inc. of Fairfax won a $49.8 million contract from the Navy for technologies in support of All World Environmental Simulation and Interactive Multisensor Analysis Training.

Consolidated Safety Services of Fairfax won a $5 million contract from the General Services Administration for management, organizational and business improvement services.

Applied Environmental Inc. of Reston won a $1.1 million contract from the General Services Administration for environmental services.

Innovative Management Concepts Inc. of Dulles won a $2.3 million contract from the General Services Administration for management, organizational and business improvement services.

Advanced Technology System Inc. of McLean won a $30 million contract from the General Services Administration for management, organizational and business improvement services.

CACI Technologies of Chantilly won a $15.7 million contract from the Navy for research and development.

EDS Information Services LLC of Herndon won a $14.9 million contract from the Housing and Urban Development Department for information technology services.

Dominion Mechanical Contractors Inc. of Springfield won a $1.1 million contract from the Architect of the Capitol for installation of water softeners and de-alkalizers for the U.S. Capitol power plant.

Weidemann Associates Inc. of Arlington won a $20 million contract from the Agency for International Development for support services for the Rural and Agricultural Incomes with a Sustainable Environment program.

Innovative Concepts Inc. of McLean won a $3 million contract from the Army for miscellaneous communications equipment.

Staff writer Judith Mbuya contributed to this report.