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Ameren Corporation (AEE) is an utilities company in the US local power providers industry, based in Saint Louis, United States, with about 8,913 full-time employees.
It reported revenue of $8.80 billion for fiscal year 2025, and net income of $1.46 billion. Its largest business segment, Ameren Missouri, brought in 53% of segment revenue in fiscal year 2025. Its market capitalization was $28.29 billion as of October 9, 2026.
Figures from company filings and market data; latest fiscal year ended December 31, 2025; market data as of October 9, 2026.
Ameren Corporation, together with its subsidiaries, operates as a public utility holding company in the United States. The company operates through four segments: Ameren Missouri, Ameren Illinois Electric Distribution, Ameren Illinois Natural Gas, and Ameren Transmission.
Ameren reported $8.80 billion in revenue for fiscal year 2025.
Ameren Missouri, with $4.80 billion or 53% of segment revenue in fiscal year 2025. Next: Ameren Illinois Electric Distribution (27%) and Ameren Illinois Natural Gas (11%).
$28.29 billion as of October 9, 2026.
Listed companies of a similar size in the same industry (US local power providers) include Pg&e Corporation (PCG), Consolidated Edison, Inc. (ED), WEC Energy Group, Inc. (WEC), DTE Energy Company (DTE).