Ameren
Ameren Corporation is a public utility holding company that operates rate-regulated electric and natural gas businesses across Missouri and Illinois. The company focuses on energy generation, transmission, and distribution, serving millions of customers through a diverse portfolio of coal, nuclear, natural gas, and renewable energy sources. Its core value proposition centers on investing in regulated energy infrastructure and transitioning toward a sustainable energy future through grid modernization and clean energy expansion.
Financials
Based on Q1 2026 filing
Revenue
View metricGross Profit
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View metricEPS (Diluted)
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Ameren Missouri
primaryA vertically integrated utility operating rate-regulated electric generation, transmission, and distribution businesses, alongside natural gas distribution in Missouri. It is the company's largest segment by revenue and rate base.
Electric Service, Natural Gas Delivery, Callaway Energy Center, Osage Energy Center, Taum Sauk Energy Center
Residential, Commercial, Industrial, Wholesale
Ameren Illinois Electric Distribution
majorFocuses on the rate-regulated electric distribution business in Illinois, acting as the provider of last resort for power supply while managing infrastructure and grid modernization.
Electric Distribution Delivery Service, Smart Metering, Grid Modernization Services
Residential, Commercial, Industrial, Public Authority
Ameren Illinois Natural Gas
moderateOperates rate-regulated natural gas distribution and storage businesses in Illinois, managing the purchase and delivery of natural gas to retail customers.
Natural Gas Delivery Service, Natural Gas Storage
Residential, Commercial, Industrial, Transport Customers
Ameren Transmission
moderateAggregates the electric transmission businesses of Ameren Illinois and ATXI, operating under FERC-regulated rates to move high-voltage electricity across the MISO region.
Electric Transmission Service, Wholesale Energy Transmission
Wholesale Energy Markets, Other Utilities, Independent Power Producers
Segment Financials
Ameren Illinois Electric Distribution — Revenue
View metricAmeren Illinois Natural Gas — Other operations and maintenance
View metricAmeren Illinois Electric Distribution — Other operations and maintenance
View metricAmeren Illinois Electric Distribution — CapEx
View metricAmeren Illinois Electric Distribution — Purchased Power
View metricAmeren Illinois Natural Gas — Other revenues not from contracts with customers
View metricAmeren Illinois Natural Gas — Revenue
View metricAmeren Illinois Natural Gas — CapEx
View metricAmeren Illinois Transmission — Revenue
View metricAmeren Illinois Transmission — CapEx
View metricAmeren Illinois Transmission — External revenues
View metricBusiness Overview
Competitive Position
Ameren holds a dominant, rate-regulated position in its service territories, operating as a natural monopoly for distribution services while participating in competitive wholesale power markets.
Geographies
Missouri, Illinois, United States
Customer Segments
Residential, Commercial, Industrial, Municipal
Upstream Dependencies
Coal Suppliers, Uranium Mining and Enrichment Providers, Natural Gas Producers, Interstate Pipeline Operators, Renewable Energy Equipment Manufacturers
Downstream Customers
Residential Households, Commercial Enterprises, Industrial Manufacturers, Municipalities, Wholesale Market Participants
Competitors & Partners
Competitors
Partners
MISO
Regional Transmission Organization managing the power grid and capacity auctions
Energy Transfer
ET
Interstate pipeline system for natural gas transport
Illinois Power Agency
State agency administering power procurement for Illinois customers
Subsidiaries
Ameren Missouri
Regulated electric and gas utility in Missouri
Ameren Illinois
Regulated electric and gas utility in Illinois
Ameren Transmission Company of Illinois
FERC-regulated electric transmission entity
Ameren Services
Provider of shared support services to Ameren subsidiaries
Ameren FAQ
Common questions about Ameren
Ameren Corporation is a public utility holding company that operates rate-regulated electric and natural gas businesses across Missouri and Illinois. The company focuses on energy generation, transmission, and distribution, serving millions of customers through a diverse portfolio of coal, nuclear, natural gas, and renewable energy sources. Its core value proposition centers on investing in regulated energy infrastructure and transitioning toward a sustainable energy future through grid modernization and clean energy expansion.
Ameren (AEE) has a market capitalization of $29.7B and trades on NYSE.
Ameren generated $8.9B in trailing twelve-month revenue with net income of $1.5B, representing a net margin of 17.2%, with free cash flow of -$1.3B. These figures are based on the Q1 2026 filing.
Ameren's key competitors include Exelon Corporation, Vistra Corp., CMS Energy Corporation, and others. These companies compete in similar markets and product categories.
Ameren has approximately 9,372 employees.