Alliant Energy Corporation

Alliant Energy Corporation is a utility holding company that provides regulated electric and natural gas services to customers in the Midwest United States. Through its subsidiaries, Interstate Power and Light Company and Wisconsin Power and Light Company, it generates and distributes electricity to nearly 1 million electric customers and distributes natural gas to approximately 425,000 gas-only customers in Iowa and Wisconsin. The company also sells electricity to wholesale customers including municipalities and rural electric cooperatives, and serves sectors such as farming, agriculture, industrial manufacturing, chemicals, packaging, and food industries. Alliant Energy owns a 16% interest in American Transmission Co. and operates additional services including a short-line rail freight in Iowa, a freight terminal on the Mississippi River in Illinois, freight brokerage, wind turbine blade recycling, and a rail-served warehouse. It holds interests in a natural gas-fired electric generating unit in Wisconsin and a wind farm in Oklahoma. Headquartered in Madison, Wisconsin, Alliant Energy plays a key role in delivering reliable energy infrastructure to residential, commercial, and industrial users across its territories.