Phoenix Contracting Services Inc. of Baltimore won a $373,000 contract from the Veterans Affairs Department to replace roofs.

Limitorque Corp. of Lynchburg won a $338,864 contract from the Naval Inventory Control Point for motor units.

Dynamic Aviation Group Inc. of Bridgewater, Va., won a contract valued at up to $312,288 from the Commerce Department's National Oceanic and Atmospheric Administration for aircraft services to support the deployment of the Airborne UV-Dial Ozone Lidar in the New England Air Quality Study.

Kop Flex of Hanover, Md., won a $282,460 contract from the Naval Surface Warfare Center to refurbish high-speed coupling shafts.

Science Applications International Corp. of McLean won a $258,896 contract from the Air Force Materiel Command to develop directed energy weapons.

Modern Technology Solutions Inc. of Alexandria won a $243,413 contract from the Air Force Rome Research Laboratory for operational analysis for advanced sensor technology.

Northrop Grumman Systems Corp. of Charlottesville won a $151,965 contract from the Naval Inventory Control Point for ring laser gyros.

Peake Printers Inc. of Cheverly won a $145,477 contract from the Government Printing Office for entrance counseling guides for direct loan borrowers.

Rockwell Collins of White Marsh won a $134,650 contract from the Naval Surface warfare Center for microwave receivers and display digitizers.

Logistics Solutions Group Inc. of Hopewell won a contract valued at up to $125,000 from the General Services Administration's Federal Supply Service for professional, administrative and management support services.