1. Protek
Coordinate: icon:https://i1.ypcdn.com/ypu/images/icons/map-pin.png|42.121655,-88.03686
Phone: Phone: (847) 221-8943
2. Auryn Technology
Coordinate: icon:https://i1.ypcdn.com/ypu/images/icons/map-pin.png|42.07675,-88.04882
Phone: Phone: (847) 496-5452