Federal Contract Spending in DuPage County, IL (FY2025)
Federal agencies obligated $3.5 billion on contracts performed in DuPage County, IL in fiscal year 2025, about $3,748 per resident. The largest buyer was the Department of Defense ($1.9 billion); the largest contractor was W S Darley & Co ($1.5 billion).
Who buys
| Agency | FY2025 obligations | Share |
|---|---|---|
| Department of Defense | $1.9 billion | 54% |
| Department of Energy | $1.3 billion | 36% |
| Department of Veterans Affairs | $292.3 million | 8% |
| Department of Agriculture | $14.1 million | 0% |
| Department of the Treasury | $14.1 million | 0% |
| Department of Health and Human Services | $6.3 million | 0% |
| Department of Justice | $4.0 million | 0% |
| Department of Homeland Security | $3.6 million | 0% |
| Department of Transportation | $1.6 million | 0% |
| Environmental Protection Agency | $504,239 | 0% |
Who wins
| Contractor | FY2025 obligations |
|---|---|
| W S Darley & Co | $1.5 billion |
| Uchicago Argonne, LLC | $1.3 billion |
| Sonova USA INC | $274.3 million |
| Aar Government Services, Inc. | $204.0 million |
| Aar Supply Chain, INC | $109.2 million |
| Chemring Energetic Devices INC | $60.5 million |
| Joint Commission On Accreditation of Healthcare Organizations | $16.5 million |
| Mistica Foods LLC | $14.0 million |
| Mccrone Associates INC | $10.0 million |
| Tw Metals, Inc. | $8.6 million |
What it buys
| Industry (NAICS) | FY2025 obligations |
|---|---|
| Research and Development in the Physical, Engineering, and Life Sciences (541710) | $1.3 billion |
| All Other Miscellaneous Manufacturing (339999) | $753.9 million |
| Service Establishment Equipment and Supplies Merchant Wholesalers (423850) | $682.9 million |
| Electromedical and Electrotherapeutic Apparatus Manufacturing (334510) | $242.6 million |
| Other Aircraft Parts and Auxiliary Equipment Manufacturing (336413) | $180.9 million |
| Other Support Activities for Air Transportation (488190) | $107.6 million |
| Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515) | $37.6 million |
| Electronic and Precision Equipment Repair and Maintenance (811210) | $31.7 million |
| Explosives Manufacturing (325920) | $21.5 million |
| Photographic and Photocopying Equipment Manufacturing (333316) | $14.7 million |
Largest contracts with money obligated in the year
Value is the contract's total to date, not one year.
| Contract | Contractor | Agency | Started | Total value |
|---|---|---|---|---|
| DEAC0206CH11357 | Uchicago Argonne, LLC | Department of Energy | 2006-07-31 | $17.7 billion |
| N0001919C0070 | Aar Government Services, Inc. | Department of Defense | 2019-07-26 | $120.3 million |
| N0001924F5017 | Aar Government Services, Inc. | Department of Defense | 2024-09-13 | $101.2 million |
| SPE8EL25FJ4NB | W S Darley & Co | Department of Defense | 2025-09-08 | $78.1 million |
| FA820324F0007 | Aar Government Services, Inc. | Department of Defense | 2024-02-26 | $64.9 million |
| FA820325F0002 | Aar Government Services, Inc. | Department of Defense | 2025-03-18 | $59.5 million |
| N0001923F0075 | Aar Government Services, Inc. | Department of Defense | 2022-10-17 | $53.0 million |
| SPRRA122F0233 | Aar Supply Chain, INC | Department of Defense | 2022-09-29 | $48.6 million |
| N0001922F0918 | Aar Government Services, Inc. | Department of Defense | 2021-10-14 | $37.8 million |
| SPE8EL25FJ3L2 | W S Darley & Co | Department of Defense | 2025-08-05 | $31.5 million |
By fiscal year
| Fiscal year | Obligations |
|---|---|
| 2021 | $2.0 billion |
| 2022 | $2.3 billion |
| 2023 | $2.8 billion |
| 2024 | $3.1 billion |
| 2025 | $3.5 billion |
| 2026 (partial: defense data lags 90 days) | $3.5 billion |
More
County FIPS 17043. Population 934,298.
Open federal bids in this state: Illinois federal bids.
Other counties: Cook County · Lake County · Kane County · Will County
Source and coverage
Source: USAspending.gov, the U.S. Treasury's public record of federal spending. Figures are contract obligations (award types A, B, C and D) for federal fiscal year 2025, October 2024 to September 2025, by the place where the work is performed, not where the contractor is based. Grants and loans are not included. Retrieved 2026-11-01.
Obligations can be negative when earlier amounts are withdrawn. Some classified work is not reported. Contractors that may be individuals are left out of the name lists. Pushbuild is not affiliated with any government agency. Get the same data by API: US Federal Contracts API.