AMEREN CORP

A regulated utility holding company, Ameren Corporation operates electric generation, transmission, and distribution infrastructure alongside natural gas transmission and distribution services across the central United States. The company generates electricity through a diversified portfolio including coal, nuclear, natural gas, and renewable sources such as hydroelectric, wind, and solar facilities. It serves residential, commercial, and industrial customers through its utility subsidiaries.

The company's operations are organized into four business segments. Ameren Missouri operates the regulated electric and natural gas utility serving the state. Ameren Illinois Electric Distribution and Ameren Illinois Natural Gas manage the company's utility operations in Illinois, where it provides both electric distribution and natural gas services to customers. Ameren Transmission oversees the high-voltage transmission infrastructure that moves electricity across the regional grid.

Headquartered in Saint Louis, Missouri, Ameren Corporation operates with approximately 8,900 full-time employees and serves a multi-state service territory centered in Missouri and Illinois. The company was founded in 1881 and remains incorporated in Missouri. As a publicly traded entity on the New York Stock Exchange, it operates under the regulatory frameworks established by state utility commissions that govern rates and service standards.