Top Secret  (77) SECRET  (57) TS/SCI  (24) Public Trust  (3)

State College  (60) Pittsburgh  (34) King of Prussia  (25) Philadelphia  (24) Canonsburg  (22) Mechanicsburg  (8) Freeport  (6) New Cumberland  (5) Allentown  (4) Johnstown  (4) Archbald  (3) Chambersburg  (2) Coraopolis  (2) Tobyhanna  (2) West Mifflin  (2) Boyers  (1) Chesterbrook  (1) Norristown  (1) Ridley Park  (1) Saint Lawrence  (1) Worcester  (1)

Applied Research Laboratory at Penn State University  (67) General Dynamics Mission Systems  (23) Lockheed Martin  (21) Carnegie Mellon University's Software Engineering Institute  (13) Serco  (12) Deloitte  (7) Moseley Technical Services, Inc.  (7) Contact Government Services  (7) TEKSYNAP  (7) RTX  (5) Concurrent Technologies Corporation  (4) Defense Logistics Agency  (4) KBR  (4) CACI  (3) Markon  (2) Athena Technology Group, Inc.  (2) Entarian  (2) LAUKOA  (2) Cambridge International Systems  (2) Guidehouse  (1) Defense Counterintelligence and Security Agency  (1) Scientific Research Corporation  (1) Noblis  (1) Constellation West  (1) Boeing Defense Systems  (1) LMI Consulting  (1) Goldbelt  (1) Naval Supply Systems Command  (1) Environmental Protection Agency  (1) Arcfield  (1) Three Saints Bay  (1) Prism Inc  (1) Air  (1) CAE USA Inc.  (1) DecisionPoint Corporation  (1) ORBIS Inc. – An Engineering Solutions Company  (1) ProSidian  (1) Peraton  (1)