Ameren Corporation

Ameren Corporation, along with its subsidiaries, functions as a public utility holding company operating across the United States. The enterprise is structured into four main divisions: Ameren Missouri, Ameren Illinois Electric Distribution, Ameren Illinois Natural Gas, and Ameren Transmission. Its core business encompasses the rate-regulated generation, transmission, and distribution of electricity, alongside the regulated distribution and transmission of natural gas. Electricity generation relies primarily on coal, nuclear, and natural gas, supplemented by renewable sources like hydroelectric, wind, methane gas, and solar. Ameren serves a diverse customer base, including residential, commercial, and industrial clients. The corporation was established in 1881 and is headquartered in St. Louis, Missouri.