American Transmission Co.

Helping to keep the lights on, businesses running and communities strong. ®


ATC is headquartered in Pewaukee, Wis., just west of Milwaukee.

The corporate headquarters was the first building in Waukesha County to receive the prestigious LEED Gold designation, established by the U.S. Green Building Council.

Our other Wisconsin offices are located in De Pere (Green Bay), Madison and Cottage Grove. We also have an office in Kingsford, Mich.