Philadelphia  (15) Pittsburgh  (12) Allentown  (4) Tobyhanna  (3) State College  (2) Boyers  (1) Coraopolis  (1) King of Prussia  (1) Mechanicsburg  (1) New Cumberland  (1) Wilkes-Barre  (1) Willow Grove  (1)

Serco  (19) Cambridge International Systems  (4) TEKSYNAP  (4) Contact Government Services  (3) U.S. Army Communications Electronics Command  (2) ProSidian  (2) Applied Research Laboratory at Penn State University  (2) Lockheed Martin  (1) Leidos  (1) Noblis  (1) Constellation West  (1) MKS2 Technologies  (1) Potawatomi Federal Solutions, LLC.  (1) Cubic  (1) Data Intelligence, LLC  (1)