Companies
Ameren
UtilitiesSt. Louis, MissouriAEE8,913 employees
More about Ameren
Utility holding company that provides electric and natural gas service in Missouri and Illinois and runs electric transmission.
Revenue
$8.8B
Fiscal 2025, up about 15%
Employees
8,913
As of December 2025
Stock
AEE
New York Stock Exchange
Headquarters
St. Louis, Missouri
CEO
Martin J. Lyons Jr.
Since January 2022
Main businessesAmeren Missouri, Ameren Illinois, Ameren Transmission Company of Illinois
Current strategyInvesting $30.5 billion to $33.1 billion in rate-regulated energy infrastructure from 2026 through 2030
CompetitorsEvergy, Exelon, Xcel Energy
Checked October 11, 2026 · Sources: sec.gov
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