ATC is connecting you with a sustainable energy future. We are a transmission-only electric utility that helps keep the lights on, businesses running and communities strong in portions of Wisconsin, Michigan, Minnesota and Illinois. As an owner and operator of almost 10,000 miles of transmission lines and more than 560 substations, we help meet the power needs of more than 5 million customers in Midwestern communities. Our mission is to perfect our business and lead the transition to a sustainable energy future. We live a culture of one team – connected by purpose, curiosity and positive energy. We are guided by our values: We Care, We Challenge, We Commit, We Communicate, We Compete and We Celebrate.