Ameren Headquarters & Office Locations

Ameren is a leading energy company providing reliable electric and natural gas services to millions of customers across the Midwest. With a focus on innovation, sustainability, and customer satisfaction, Ameren is committed to delivering safe, affordable, and cleaner energy solutions to power homes, businesses, and communities.

Other Locations

• Collinsville, United States: Located at 10 Executive Drive, Collinsville, Illinois 62234, this regional office serves as a significant operational hub, supporting infrastructure and customer service activities in the Illinois region.
• Decatur, United States: Situated at 2460 N. Jasper Street, Decatur, Illinois 62526, this office handles local administration, operations coordination, and maintenance management in Central Illinois.
• Cape Girardeau, United States: Positioned at 1050 South Kingshighway Street, Cape Girardeau, Missouri 63703, this facility is dedicated to supporting southeastern Missouri with customer relations, emergency response, and operational logistics.
• Jefferson City, United States: Found at 3025 W. Truman Boulevard, Jefferson City, Missouri 65109, this office functions as an operational management center, coordinating services and outreach efforts across Missouri's capital region.
• Peoria, United States: Located at 300 Liberty Street, Peoria, Illinois 61602, this regional location serves as a strategic operation and customer service site covering central and western Illinois communities.

Other Offices:

• Springfield, United States
• Maryville, United States
• Mattoon, United States
• Marion, United States
• Mexico, United States