Ameren Corp is a utility holding company that provides electric and natural gas services to customers in the United States, primarily in Missouri and Illinois. The company operates through its subsidiaries, focusing on the generation, transmission, and distribution of energy. Ameren is committed to delivering reliable energy solutions while investing in infrastructure and sustainability initiatives, including renewable energy projects and energy efficiency programs. Through its operations, the company plays a crucial role in supporting the energy needs of communities and promoting environmental stewardship.