Company
Ameren Illinois Company
Headquarters: Collinsville, IL, United States
Employees: 3,304
Market Cap
$1.67 Billion
USD as of July 1, 2025
Ameren Illinois Company Categories
United States Utilities Utilities—Regulated ElectricUnited States Utilities United States Utilities—Regulated Electric
Top Competitors by Market Capitalization
Industry: Utilities—Regulated Electric
| Company | Market Cap (USD) |
|---|---|
| NextEra Energy | $150.32 B |
| The Southern Company | $100.28 B |
| Duke Energy Corporation | $90.99 B |
| American Electric Power Company, Inc. | $55.16 B |
| Xcel Energy Inc. | $38.97 B |
Sector:
| Company | Market Cap (USD) |
|---|---|
| NextEra Energy | $150.32 B |
| Iberdrola, SA | $120.04 B |
| China Yangtze Power Co. Ltd | $103.31 B |
| The Southern Company | $100.28 B |
| Enel SpA | $98.84 B |
Detailed Description
Ameren Illinois Company, doing business as Ameren Illinois, engages in the rate-regulated electric generation, transmission, and distribution business in Collinsville, Illinois. The company also engages in the natural gas distribution businesses. It supplies electric services to 1.2 million customers and natural gas services to 0.8 million customers in a 43,700 square-mile area in central and eastern Illinois. The company was formerly known as Central Illinois Public Service Company and changed its name to Ameren Illinois Company in October 2010. Ameren Illinois Company was founded in 1902 and is based in Collinsville, Illinois. Ameren Illinois Company is a subsidiary of Ameren Corporation.
Financials
| Last Financial Reports Date | March 31, 2025 |
| Revenue TTM | $3.47 B |
| EBITDA | $1.70 B |
| Gross Profit TTM | $1.69 B |
| Profit Margin | 48.53% |
| Operating Margin | 30.41% |
| Quarterly Revenue Growth | 20.48% |
Stocks & Indices
Ameren Illinois Company has the following listings and related stock indices.
Stock: OTC: AILLP wb_incandescent
Stock: OTC: AILIM wb_incandescent
Stock: OTC: AILIN wb_incandescent
Stock: OTC: AILIO wb_incandescent
Stock: OTC: AILIP wb_incandescent
Stock: OTC: AILIH wb_incandescent
Stock: OTC: AILLM wb_incandescent
Stock: OTC: AILLN wb_incandescent
Stock: OTC: AILLO wb_incandescent
Stock: OTC: AILLI wb_incandescent