1. Sparton Corporation
425 N Martingale Rd Ste 1000, Schaumburg, IL 60173
Coordinate: 42.03605,-88.03431
Phone: (847) 762-5800
2. Electronic Design & Mfg
Coordinate: icon:https://i1.ypcdn.com/ypu/images/icons/map-pin.png|42.054718,-88.052956
Phone: Phone: (847) 884-6900