Jacobs
Springfield, VA 22150
WING
Fairfax, VA 22030
Sparrow
Silver Spring, MD 20906
Artech Information Systems
Arlington, VA 22201
M.C. Dean
Arlington, VA 22201
Riverside Research
Fairfax, VA 22033
ATI
Washington, DC 20011
Johns Hopkins Applied Physics Laboratory (APL)
Laurel, MD 20723
Delphinus Engineering
Bethesda, MD 20814
Johns Hopkins Hospital
Laurel, MD 20707