Scott Air Force Base  (38) Springfield  (20) Rolling Meadows  (10) Chicago  (8) Remote  (5) Mascoutah  (4) Fairview Heights  (3) Lisle  (2) O'Fallon  (2) Shiloh  (2) Lombard  (1) Naperville  (1) North Chicago  (1)

Booz Allen Hamilton  (18) PARSONS  (16) Northrop Grumman Space Systems  (10) ARMY TRANSPORTATION  (10) Guidehouse  (6) Boeing Defense Systems  (4) Air Mobility Command  (4) LMI Consulting  (3) Air Force Elements, U.S. Transportation Command  (3) Defense Information Systems Agency  (2) Leidos  (2) Office of the Inspector General  (2) BROADCOM  (2) Deloitte  (1) Microsoft  (1) Office of Inspector General  (1) DHS Headquarters  (1) Citizenship and Immigration Services  (1) Cybersecurity and Infrastructure Security Agency  (1) Executive Office for U.S. Attorneys and the Office of the U.S. Attorneys  (1) Federal Acquisition Service  (1) U.S. Marine Corps  (1) Nuclear Regulatory Commission  (1) OBXtek  (1)