Our Businesses

The business segments of Ameren Corporation are listed below:

Business Segment        Description
Ameren Services   Provides shared services for all of Ameren Corporation.
Ameren Illinois   Delivers electric and natural gas services in Illinois.
Ameren Missouri   Operates energy centers and provides electric and natural gas services in Missouri. Includes:
  • Ameren Missouri Energy Management & Trading - procures and transports fuel and manages renewable energy programs and emissions.
  • Ameren Missouri Wholesale (Ameren Missouri Asset Management & Trading) - offers wholesale power and other services.
Ameren Transmission   Invests and develops new transmission projects within the region.

Ameren and other U.S. energy companies must comply with the Federal Energy Regulatory Commission (FERC), which protects the economic, environmental, and safety interests of the American public. View Ameren’s FERC compliance postings.
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