Scientech Inc. of Gaithersburg won a $2.9 million contract from the Food and Drug Administration for security systems maintenance.

The five-year contract will provide support and upkeep services for security detection systems in more than 40 FDA facilities nationwide. The FDA currently employs closed-circuit television and both optical and X-ray scanners to maintain security at inspection centers.

Scientech Inc., founded in 1983, designs, installs and maintains telecommunications systems for public and private employers including the State and Treasury departments.

A&G Painting Contractors Inc. of Williamsburg won a $218,000 contract from the Veterans Affairs Department for repairs.

Viteri Construction Management Inc. of Newport News won a $209,772 contract from NASA for repairs.

Motion Control Systems Inc. of Radford won a $181,860 contract from the Coastal Systems Station for electric wire and power and distribution equipment.

Blackman Ray Enterprises Inc. of Chesapeake won a $94,400 contract from the Defense Supply Center for pumps and compressors.

Top Painting Co. Inc. of Hampton won an $83,345 contract from the Marine Corps for repairs.

Fujitsu Business Communications Systems Inc. of Fairfax won a $77,268 contract from the Navy for supplies and support equipment.

ADIC Inc. of Vienna won a $72,048 contract from the Navy for supplies and support equipment.

Continental Security Systems of Annandale won a $66,927 contract from the Marine Corps for security detection systems.

Comptech Corp. of Rockville won a $65,789 contract from the Defense Supply Center for vehicular components.

Major Safety Service of Norfolk won a $51,792 contract from the Defense General Supply Center for instruments and laboratory equipment.

The contracts listed were awarded by the federal government to companies and other vendors in Virginia, Maryland and the District.