Canonsburg  (14) Pittsburgh  (12) Philadelphia  (9) Mechanicsburg  (7) Charleroi  (6) Harrisburg  (1) King of Prussia  (1) Millersville  (1) New Cumberland  (1) Smithfield  (1) State College  (1) Tobyhanna  (1)

General Dynamics Mission Systems  (28) M.C. Dean  (7) Naval Sea Systems Command  (4) LMI Consulting  (4) SPA  (3) Scientific Research Corporation  (2) L3Harris Technologies  (2) Naval Facilities Engineering Systems Command  (1) RTX  (1) Boeing Defense Systems  (1) Goldbelt  (1) Nuclear Regulatory Commission  (1) U.S. Army Communications Electronics Command  (1)