Northrop Grumman Space Systems  (6) SAIC  (4) Leidos  (3) Arcfield  (3) Akima  (2) Peopletec  (2) General Dynamics Mission Systems  (2) AnaVation  (2) Scientific Research Corporation  (2) IronMountain Solutions  (2) Boeing Defense Systems  (2) MTSI  (2) Deloitte  (1)