Ameren

Ameren Corporation operates as a public utility holding company in the United States, with its principal subsidiaries being Ameren Missouri and Ameren Illinois Company. The company is involved in rate-regulated electric generation, transmission, and distribution, as well as natural gas transmission and distribution services. Ameren Illinois, headquartered in Collinsville, Illinois, was established in 1902 and serves as a regulated electric and gas delivery company in the region. Ameren primarily generates electricity from coal, nuclear, and natural gas, alongside renewable sources such as hydroelectric and solar power. The company serves approximately 2.4 million electric customers and about 900,000 natural gas customers across its service areas in Missouri and Illinois. Ameren's operations are designed to meet the energy needs of residential, commercial, and industrial clients while focusing on reliable service and sustainability.