Ameren Illinois Company
Collinsville, IL Doing business as Central Illinois Light Co Part of Ameren Corporation
- UEI
- CM92B36ELJU7
- CAGE
- 3A2X3
- Primary NAICS
- 221122 Electric Power Distribution
- SAM.gov registration
- Active through
Company facts
- FY2025 rankings
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Its parent company, Ameren Corporation, ranks #59 in NAICS 221112
- Self-certified in SAM.gov
- Entity structure
- Corporate Entity (Not Tax Exempt)
- Other NAICS codes in SAM.gov
- Corporate family
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-
Parent
St. Louis, MO
YMJSTU6DNHE4
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Parent
St. Louis, MO
YMJSTU6DNHE4
- SAM.gov registration date
- Physical address
- 10 Richard Mark Wy, Collinsville, IL 62234, USA
- Website
- ameren.com
- Founded
- 1997
- Employees
- 5K-10K
- Estimated annual revenue
- $1B-$10B
- Industry
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- Utilities
- SIC code
- 96 Administration of Economic Programs
- Profiles
Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $0 |
| FY2026 | $75,268 |
| FY2025 | $88,430 |
| FY2024 | $153,168 |
| FY2023 | $124,745 |
Top agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of Justice | $75,268 |
Contract awards
Latest 5 listed here. See the rest on GovTribe.
Similar vendors
| Vendor | Location | Primary NAICS |
|---|---|---|
| Xcel Energy | Minneapolis, MN | 221122 Electric Power Distribution |
| Aemp | Irving, TX | 221112 Fossil Fuel Electric Power Generation |
| PG&E | Oakland, CA | 221122 Electric Power Distribution |
| Ameren Services Company | St. Louis, MO | 561110 Office Administrative Services |
| Centerpoint Energy Resources Corp. | Houston, TX | 221210 Natural Gas Distribution |
About the company
Ameren Illinois Company, doing business as Central Illinois Light Co, is a for-profit utility subsidiary of Ameren Corporation that provides natural gas and electric power services to federal correctional facilities and other federal real-estate sites as a prime contractor, operating exclusively in full-and-open competition with no SBA set-asides across its 304 total awards.
Ameren Illinois is a captive utility supplier to the federal government, delivering electric power and natural gas utility services to Bureau of Prisons facilities, Veterans Affairs medical centers, General Services Administration-managed federal buildings, and Air Force installations. The company's federal work footprint spans NAICS categories 221112 (Fossil Fuel Electric Power Generation), 221122 (Electric Power Distribution), 221210 (Natural Gas Distribution), and related utility regulation and administration codes, with 241 awards under PSC 7400 (Utilities—Electric) and 45 under PSC 7410 (Utilities—Gas). Concrete named work includes quarterly natural gas rider service agreements with the Federal Correctional Institution Pekin and the United States Penitentiary Marion (valued between $13 thousand and $75 thousand per quarter for gas service, and approximately $70 thousand per year for electric power), electric utility service to federal prison factory operations, and ongoing electrical and gas utility support to VA medical facilities and GSA real-estate portfolios.
Customer concentration reflects the captive utility model. The Department of Justice Bureau of Prisons dominates by combined potential value: United States Penitentiary Marion accounts for 18 awards valued at $1.8 million, and Federal Correctional Institution Greenville carries 6 awards valued at $1.1 million. By award count, the Department of the Air Force leads with 157 awards, followed by the General Services Administration Public Buildings Service with 61 awards — but these Air Force and GSA awards are typically smaller-value utility deliveries per transaction. The vendor serves twelve distinct federal agencies in total. The top five customers account for 86% of recent awards.
Ameren Illinois places work under five primary Basic Ordering Agreements: BOA F1160279D0004 (154 task orders), BOA 15356370 (12 task orders), BOA 39401476 (12 task orders), BOA 39402912 (12 task orders), and BOA 86514688 (12 task orders). These BOAs structure recurring quarterly utility purchases from the Bureau of Prisons and periodic electric and gas service delivery across the federal real-estate and correctional portfolio.
Activity shows steady recurring volume. The past five years averaged roughly 2.6 awards per year; recent fiscal years brought four awards in 2025 and three in the first seven months of 2026. Combined potential value across all 304 awards totals $7.9 million, though combined obligated dollars reach $43.9 million, indicating significant actual invoiced revenue relative to ceiling values on these utility purchase orders. Only two awards (combined potential value $93 thousand) reach ultimate completion within the next twenty-four months, reflecting the stable, recurring nature of quarterly utility contracts with minimal recompete pressure. Ameren Illinois operates exclusively as a prime contractor (100% of awards); it holds no subcontractor positions.
Quick answers
Is Ameren Illinois Company registered in SAM.gov?
Yes. Ameren Illinois Company's SAM.gov registration is active through January 16, 2027.
How much has Ameren Illinois Company received in federal contracts?
Federal contracts obligated $88,430 to Ameren Illinois Company in fiscal year 2025 and $441,611 in fiscal years 2023 through 2027.
How does Ameren Illinois Company rank among federal contractors?
Ameren Illinois Company's parent company, Ameren Corporation, ranked #59 in NAICS 221112 in FY2025.
What is Ameren Illinois Company's most recent federal award?
Ameren Illinois Company's most recent federal contract award is FY26 P4 ameren gas rider QTR 4 (15B41126P00000121), from Federal Correctional Institution Pekin (BOP), on July 1, 2026.
On GovTribe
See Ameren Illinois Company's full federal record
- Federal contract awards
- IDV awards
- Funding analysis by agency, NAICS and set-aside
- Similar vendors