SECRET  (36) TS/SCI  (30) Top Secret  (10) TS/SCI Poly  (1)

Leidos Holding  (18) Huntington Ingalls Industries  (13) Apex Systems  (8) SAIC  (6) Fusion Mastech Incorporated  (4) Computer World Services Corp. (CWS)  (3) R&K Enterprise Solutions  (3) Northrop Grumman  (2) Lockheed Martin  (2) Piper Companies  (2) Abbtech Professional Resources  (2) VectorCSP  (2) GTangible Corporation  (1) OnPoint  (1) Raytheon Technologies  (1) Hire Velocity  (1) 2 Circle, Inc.  (1) HX5 LLC  (1) Abacus Technology  (1) PGTEK  (1) BB&E, Inc.  (1) Delaware Nation Investments  (1) ManTech International  (1) SYSTEM HIGH CORPORATION  (1)