Contact us with your questions, concerns and comments.

Corporate headquarters mailing address:

American Transmission Co.

P.O. Box 47

Waukesha, WI 53187

E-mail: localrelations@atcllc.com

Toll-free phone:  (866) 899-3204 (direct extensions are listed below)

Media inquiries:  (262) 506-6933

Media Inquiries

Toll-free (877) 506-6117

Pewaukee/Waukesha office
Mary Carpenter, Local Relations Representative

Toll-free (866) 899-3204, Ext. 6922

(262) 506-6922

Madison office

John Garvin, Manager – State Government Regulations

Toll-free (866) 899-3204, Ext. 3543

(608) 877-3543

Charles Gonzales, Senior Local Relations Representative

Toll-free (866) 899-3204, Ext. 3644

(608) 877-3644

Sarah Justus, Manager, Local Relations

Toll-free (866) 899-3204, Ext. 3624

 (608) 877-3624

DePere/Green Bay office

David Hovde, Local Relations Representative

Toll-free (866) 899-3204, Ext. 6550

(920) 338-6550

Lee Meyerhofer, Local Relations Representative

Toll-free (866) 899-3204, Ext. 6572

(920) 338-6572