What the Department of Energy buys
The Department of Energy obligated $48.5 billion on contracts in fiscal year 2025. Its largest category was Facilities Support Services ($23.5 billion).
What it buys
| Industry (NAICS) | FY2025 obligations | Share |
|---|---|---|
| Facilities Support Services (561210) | $23.5 billion | 48.4% |
| Research and Development in the Physical, Engineering, and Life Sciences (541710) | $7.9 billion | 16.4% |
| Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) (541715) | $4.0 billion | 8.3% |
| Remediation Services (562910) | $4.0 billion | 8.1% |
| All Other Professional, Scientific, and Technical Services (541990) | $2.2 billion | 4.6% |
| Hazardous Waste Treatment and Disposal (562211) | $905.8 million | 1.9% |
| Research and Development in Biotechnology (541711) | $895.0 million | 1.8% |
| Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology) (541712) | $833.7 million | 1.7% |
| Computer Systems Design Services (541512) | $537.8 million | 1.1% |
| Engineering Services (541330) | $484.5 million | 1.0% |
| Other Computer Related Services (541519) | $376.0 million | 0.8% |
| Colleges, Universities, and Professional Schools (611310) | $250.0 million | 0.5% |
| Administrative Management and General Management Consulting Services (541611) | $232.2 million | 0.5% |
| Other Basic Inorganic Chemical Manufacturing (325180) | $227.3 million | 0.5% |
| Nuclear Electric Power Generation (221113) | $197.8 million | 0.4% |
| Custom Computer Programming Services (541511) | $126.4 million | 0.3% |
| Other Scientific and Technical Consulting Services (541690) | $77.4 million | 0.2% |
| Environmental Consulting Services (541620) | $75.0 million | 0.2% |
| Security Guards and Patrol Services (561612) | $57.6 million | 0.1% |
| All Other Support Services (561990) | $54.8 million | 0.1% |
| Commercial and Institutional Building Construction (236220) | $48.2 million | 0.1% |
| Software Publishers (511210) | $33.5 million | 0.1% |
| Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (518210) | $32.4 million | 0.1% |
| Offices of Certified Public Accountants (541211) | $31.7 million | 0.1% |
Who wins
| Contractor | FY2025 obligations | Share |
|---|---|---|
| National Technology & Engineering Solutions of Sandia, LLC | $5.7 billion | 11.7% |
| Triad National Security, LLC | $5.2 billion | 10.7% |
| Lawrence Livermore National Security, LLC | $3.6 billion | 7.5% |
| Ut-battelle LLC | $2.7 billion | 5.5% |
| Consolidated Nuclear Security, LLC | $2.5 billion | 5.2% |
| Honeywell Federal Manufacturing & Technologies, LLC | $2.1 billion | 4.4% |
| Savannah River Nuclear Solutions LLC | $2.0 billion | 4.0% |
| Battelle Energy Alliance, LLC | $1.9 billion | 4.0% |
| Pantexas Deterrence, LLC | $1.9 billion | 4.0% |
| Fermi Forward Discovery Group, LLC | $1.7 billion | 3.6% |
| Fluor Marine Propulsion, LLC | $1.7 billion | 3.6% |
| Battelle Memorial Institute | $1.6 billion | 3.4% |
| The Regents of the University of California | $1.3 billion | 2.7% |
| Uchicago Argonne, LLC | $1.3 billion | 2.6% |
| Savannah River Mission Completion, LLC | $1.1 billion | 2.2% |
| Bechtel National, Inc. | $1.1 billion | 2.2% |
| Mission Support & Test Services LLC | $994.6 million | 2.0% |
| Alliance for Energy Innovation, LLC | $895.0 million | 1.8% |
| Brookhaven Science Associates LLC | $833.7 million | 1.7% |
| Hanford Tank Waste Operations & Closure, LLC | $796.0 million | 1.6% |
| The Leland Stanford Junior University | $712.0 million | 1.5% |
| United Cleanup Oak Ridge LLC | $630.3 million | 1.3% |
| Central Plateau Cleanup Company, LLC | $558.4 million | 1.2% |
| Idaho Environmental Coalition LLC | $531.1 million | 1.1% |
| Accenture Federal Services LLC | $458.7 million | 0.9% |
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Source and coverage
Source: USAspending.gov, the U.S. Treasury's public record of federal spending, retrieved 2026-11-01. Figures are contract obligations (award types A, B, C and D) for federal fiscal year 2025, October 2024 to September 2025. Amounts cover the whole agency. This is federal money only. State, city and town contracts are not included. Obligations can be negative when earlier amounts are withdrawn, some classified work is not reported, and contractors that may be individuals are left out of the name lists, so a list is not a complete ranking of everyone paid. Pushbuild is not affiliated with any agency or company listed.