Federal contracts by state
Federal Contracts in Illinois: Spending, Agencies & Vendors
Data through 2026-09-28 · FY2026 to date
- Obligations, FY2026 to date
- $11.1B
- Contract awards
- 473,041
- Average award size
- $23.6K
- vs. prior full fiscal year
- 10.3% decline
| Item | Obligations |
|---|---|
| FY21 | $12B |
| FY22 | $13.6B |
| FY23 | $13B |
| FY24 | $13.4B |
| FY25 | $12.4B |
| FY26 | $11.1B |
Obligations fell 10.3% year over year, from $12.4B in FY2025 to $11.1B in FY2026 to date.
Illinois has $11.1B in federal contract obligations in FY2026 to date. The state recorded 473,041 awards this fiscal year to date, with an average award size of $23.6K. Obligations fell 10.3% year over year. Fiscal-year totals show a peak at $13.6B in FY22 and a decline to $11.1B in FY26 after FY25 obligations of $12.4B. The Department of Defense is the largest buyer in Illinois, obligating $5.9B so far this fiscal year. Medical, research, and wholesale industries account for much of the spending, led by Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers at $1.2B and Research and Development in the Physical, Engineering, and Life Sciences at $1.1B. W S DARLEY & CO leads vendors with $1.5B in obligations, followed by UCHICAGO ARGONNE, LLC at $1.1B and MEDLINE INDUSTRIES, LP at $943M. The figures are fiscal year to date and therefore partial totals for FY2026.
How did Illinois federal contract spending change across recent fiscal years?
Illinois recorded $12B in FY21, $13.6B in FY22, $13B in FY23, $13.4B in FY24, $12.4B in FY25, and $11.1B in FY26 to date. Obligations fell 10.3% year over year into FY26 to date. The FY26 figure is a partial, fiscal year to date total. The sequence shows a peak in FY22 and lower obligations through FY26 to date.
| Item | Obligations |
|---|---|
| Department of Defense | $5.9B |
| Department of Veterans Affairs | $1.9B |
| Department of Energy | $1.9B |
| General Services Administration | $533M |
| Department of Agriculture | $255M |
| Department of Health and Human Services | $242M |
| Department of Homeland Security | $125M |
| Department of Justice | $102M |
| Department of Labor | $39.8M |
| Environmental Protection Agency | $36.4M |
Department of Defense was the top federal buyer in Illinois, obligating $5.9B (52.6% of the state total).
Who are the biggest buyers, industries, and vendors in Illinois federal contracting?
The Department of Defense is the top buying agency with $5.9B in obligations, followed by the Department of Veterans Affairs at $1.9B and the Department of Energy at $1.9B. The leading industries are Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers at $1.2B and Research and Development in the Physical, Engineering, and Life Sciences at $1.1B. W S DARLEY & CO is the largest vendor with $1.5B, followed by UCHICAGO ARGONNE, LLC at $1.1B and MEDLINE INDUSTRIES, LP at $943M.
| Item | Obligations |
|---|---|
| W S DARLEY & CO | $1.5B |
| UCHICAGO ARGONNE, LLC | $1.1B |
| MEDLINE INDUSTRIES, LP | $943M |
| FERMI FORWARD DISCOVERY GROUP, LLC | $770M |
| NORTHROP GRUMMAN SYSTEMS CORPORATION | $575M |
| SUPPLYCORE LLC | $564M |
| BP PRODUCTS NORTH AMERICA INC. | $413M |
| W.W. GRAINGER, INC. | $341M |
| DDB CHICAGO INC. | $310M |
| CARDINAL HEALTH 200, LLC | $291M |
W S DARLEY & CO led all contractors in Illinois with $1.5B, 13.7% of the state total.
| Item | Obligations |
|---|---|
| Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers | $1.2B |
| Research and Development in the Physical, Engineering, and Life Sciences | $1.1B |
| Service Establishment Equipment and Supplies Merchant Wholesalers | $1B |
| Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) | $819M |
| All Other Miscellaneous Manufacturing | $794M |
| Petroleum Refineries | $426M |
| Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing | $352M |
| Home Centers | $339M |
| Advertising Agencies | $310M |
| Engineering Services | $235M |
Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers was the largest industry in Illinois, with $1.2B obligated.
| Rank | Vendor | Obligations |
|---|---|---|
| 1 | W S DARLEY & CO | $1.5B |
| 2 | UCHICAGO ARGONNE, LLC | $1.1B |
| 3 | MEDLINE INDUSTRIES, LP | $943M |
| 4 | FERMI FORWARD DISCOVERY GROUP, LLC | $770M |
| 5 | NORTHROP GRUMMAN SYSTEMS CORPORATION | $575M |
| 6 | SUPPLYCORE LLC | $564M |
| 7 | BP PRODUCTS NORTH AMERICA INC. | $413M |
| 8 | W.W. GRAINGER, INC. | $341M |
| 9 | DDB CHICAGO INC. | $310M |
| 10 | CARDINAL HEALTH 200, LLC | $291M |
| Rank | Recipient | Award Amount | Awarding Agency |
|---|---|---|---|
| 1 | UCHICAGO ARGONNE, LLC | $17.5B | Department of Energy |
| 2 | FERMI FORWARD DISCOVERY GROUP, LLC | $2.5B | Department of Energy |
| 3 | GOODWILL INDUSTRIES OF SOUTHEASTERN WISCONSIN, INC. | $815M | Department of Defense |
| 4 | NORTHROP GRUMMAN SYSTEMS CORPORATION | $510M | Department of Defense |
| 5 | GENERAL DYNAMICS ORDNANCE AND TACTICAL SYSTEMS, INC. | $403M | Department of Defense |
| 6 | NORTHROP GRUMMAN SYSTEMS CORPORATION | $358M | Department of Defense |
| 7 | CDW GOVERNMENT LLC | $340M | Department of State |
| 8 | NORTHROP GRUMMAN SYSTEMS CORPORATION | $334M | Department of Defense |
| 9 | WALGREEN CO. | $291M | Department of Health and Human Services |
| 10 | GENERAL DYNAMICS ORDNANCE & TACTICAL SYSTEMS, INC. | $280M | Department of Defense |
| 11 | NORTHROP GRUMMAN SYSTEMS CORPORATION | $272M | Department of Defense |
| 12 | ITILITY, L.L.C | $241M | General Services Administration |
| 13 | DDB CHICAGO INC. | $199M | Department of Defense |
| 14 | CARDINAL GOVERNMENT SERVICES, INC. | $192M | Department of Commerce |
| 15 | NORTHROP GRUMMAN SYSTEMS CORPORATION | $166M | Department of Defense |
| 16 | NORTHROP GRUMMAN SYSTEMS CORPORATION | $159M | Department of Defense |
| 17 | NORTHROP GRUMMAN SYSTEMS CORPORATION | $159M | Department of Defense |
| 18 | ACCENTURE FEDERAL SERVICES LLC | $158M | Department of the Treasury |
| 19 | NORTHROP GRUMMAN SYSTEMS CORPORATION | $158M | Department of Defense |
| 20 | NORTHROP GRUMMAN SYSTEMS CORPORATION | $155M | Department of Defense |
| 21 | NORTHROP GRUMMAN SYSTEMS CORPORATION | $151M | Department of Defense |
| 22 | KORTE -RIVER CITY JV | $150M | Department of Defense |
| 23 | NORTHROP GRUMMAN SYSTEMS CORPORATION | $148M | Department of Defense |
| 24 | NORTHROP GRUMMAN SYSTEMS CORPORATION | $146M | Department of Defense |
| 25 | NORTHROP GRUMMAN SYSTEMS CORPORATION | $144M | Department of Defense |
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Frequently asked questions
How much federal contract money goes to Illinois?
Illinois has $11.1B in federal contract obligations in FY2026 to date. The state recorded 473,041 awards in FY2026 to date and an average award size of $23.6K. Obligations fell 10.3% year over year and FY26 to date is a partial fiscal-year total.
Which agencies award the most contracts in Illinois?
The Department of Defense awards the most contracts in Illinois. The Department of Defense obligated $5.9B in FY2026 to date, followed by the Department of Veterans Affairs at $1.9B and the Department of Energy at $1.9B. Other top buyers include the General Services Administration at $533M and the Department of Agriculture at $255M.
Who are the largest federal contractors in Illinois?
W S DARLEY & CO is the largest federal contractor in Illinois with $1.5B in obligations. Other large contractors include UCHICAGO ARGONNE, LLC at $1.1B, MEDLINE INDUSTRIES, LP at $943M, and FERMI FORWARD DISCOVERY GROUP, LLC at $770M.
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