Chair, president and CEO
ATC | Pewaukee
Teresa Mogensen is chair of the board of directors, president and chief executive officer at ATC, a Pewaukee-based utility that owns and operates more than 10,000 miles of high-voltage transmission lines across Wisconsin, Michigan, Minnesota and Illinois. Mogensen returned to ATC (formerly known as American Transmission Co.) as president and CEO in August 2023 after previously working for the company from 2000 to 2007 in a variety of leadership roles. Mogensen was also named chair of the ATC board of directors in January 2024. ATC has more than 500 employees across its four office locations in Wisconsin and Michigan, and it has more than 5 million customers.
Between her stints at ATC, Mogensen was senior vice president, energy supply at Minneapolis-based Xcel Energy, where she was responsible for a generation fleet of more than 80 power plants that produced more than 20,000 megawatts of electric power for 3.7 million customers across eight states.
She also serves on the boards of the Milwaukee Symphony Orchestra and Edison Electric Institute. She chairs the North American Electric Reliability Corp.’s Reliability Issues Steering Committee and serves on the Executive Advisory Committee of the Institute of Electrical and Electronics Engineers Power Engineering Society.
Education: Bachelor’s, Marquette University
