Who is the Department of Energy's biggest contractor in FY2021?

National Technology & Engineering Solutions of Sandia, LLC, with $4.3B obligated in FY2021. Second is Triad National Security, LLC at $4B.

Where does this ranking come from?

It is computed from USASpending.gov award records, which are U.S. government works and in the public domain. Each figure is the total the Department of Energy obligated to that recipient in FY2021. TheFiscalFinder does the ranking; the underlying figures are the government's own.

How many recipients are shown?

The top 100 for FY2021. Each row opens that recipient's own page, where the same money is broken out by year, by counterparty and by place.

Does a high position mean anything is wrong?

No. This is a description of where public money went in FY2021, computed from public records. It is not an allegation about anyone on it.

Top contractors of the Department of Energy: FY2021

≈ computed · agency obligations

National Technology & Engineering Solutions of Sandia, LLC received more money from the Department of Energy than any other recipient in FY2021: $4.3B in obligations. Ranked by what the Department of Energy obligated to each recipient in FY2021, so the list is about this agency's money rather than a contractor's overall size. Combined corporate families count once. ≈ computed

Ranked from USASpending records, data current as of 2026-07-12. FY2020 to FY2025 are loaded.

1
National Technology & Engineering Solutions of Sandia, LLC0 awards
$4.3B
2
Triad National Security, LLC0 awards
$4B
3
Lawrence Livermore National Security, LLC0 awards
$2.8B
4
Battelle Memorial Institute0 awards
$2.6B
5
Consolidated Nuclear Security, LLC0 awards
$2.6B
6
UT-Battelle LLC0 awards
$2.3B
7
Honeywell International Inc.0 awards
$1.7B
8
Savannah River Nuclear Solutions LLC0 awards
$1.7B
9
Fluor Marine Propulsion, LLC0 awards
$1.6B
10
The Regents of the University of California0 awards
$1.1B
11
Uchicago Argonne, LLC0 awards
$992.8M
12
Mission Support & Test Services LLC0 awards
$854.7M
13
Bechtel Corporation0 awards
$821.4M
14
Washington River Protection Solutions LLC0 awards
$704.7M
15
Savannah River Remediation LLC0 awards
$680.8M
16
Brookhaven Science Associates LLC0 awards
$667.6M
17
Alliance for Energy Innovation, LLC0 awards
$649.3M
18
Fermi Research Alliance, LLC0 awards
$615.6M
19
The Leland Stanford Junior University0 awards
$540.9M
20
Central Plateau Cleanup Company, LLC0 awards
$441M
21
Ucor LLC0 awards
$431M
22
Hanford Mission Integration Solutions, LLC0 awards
$426.7M
23
Fluor-Bwxt Portsmouth LLC0 awards
$423.6M
24
Fluor Idaho LLC0 awards
$408.1M
25
Nuclear Waste Partnership LLC0 awards
$385.5M
26
Accenture Federal Services LLC0 awards
$299.8M
27
Oak Ridge Associated Universities, Incorporated0 awards
$275.7M
28
Four Rivers Nuclear Partnership LLC0 awards
$193.4M
29
Battelle Savannah River Alliance, LLC0 awards
$180.4M
30
Newport News Nuclear Bwxt-Los Alamos LLC0 awards
$179.7M
31
The Trustees of Princeton University0 awards
$156.6M
32
General Atomics0 awards
$145.9M
33
Leidos, Inc.0 awards
$134.5M
34
University of Illinois0 awards
$130M
35
Centerra Group, LLC0 awards
$106.4M
36
University of Rochester0 awards
$90M
37
Michigan State University0 awards
$72.3M
38
Iowa State University of Science and Technology0 awards
$70.2M
39
Massachusetts Institute of Technology0 awards
$67.6M
40
University of Wisconsin System0 awards
$60.2M
41
Soc LLC0 awards
$49M
42
Aar Government Services, Inc.0 awards
$41.4M
43
Regents of the University of Michigan0 awards
$34.6M
44
The Pennsylvania State University0 awards
$34.3M
45
University of Washington0 awards
$30M
46
University of Washington0 awards
$30M
47
Georgia Tech Research Corp0 awards
$25.5M
48
NYS Division Housing & Comm Renewal0 awards
$25.2M
49
Cornell University0 awards
$23.7M
50
University of California, Los Angeles0 awards
$22.8M
51
Carahsoft Technology Corp0 awards
$22.7M
52
University of Maryland, College Park0 awards
$21.7M
53
Ohio State University, the0 awards
$21.1M
54
Ohio State University, the0 awards
$21.1M
55
Regents of the University of Minnesota0 awards
$20.6M
56
Purdue University0 awards
$20.2M
57
Northwestern University0 awards
$19.7M
58
The Trustees of Columbia University in the City of New York0 awards
$19.4M
59
University of Tennessee0 awards
$19.3M
60
Michigan Department of Health and Human Services0 awards
$19.1M
61
Ohio Department of Development0 awards
$18.8M
62
University of California Irvine0 awards
$18.7M
63
California Institute of Technology0 awards
$18.5M
64
President and Fellows of Harvard College0 awards
$18.4M
65
Department of Community & Economic Development Pennsylvania0 awards
$18.1M
66
University of Delaware0 awards
$17.9M
67
The Aerospace Corporation0 awards
$17.3M
68
The Regents of the University of Colorado0 awards
$16.8M
69
Illinois Department Commerce & Economic Opportunity0 awards
$16.5M
70
Southwest Research Institute0 awards
$15.9M
71
University of California, Davis0 awards
$14.3M
72
University of California, Santa Barbara0 awards
$14.1M
73
Virginia Polytechnic Institute & State University0 awards
$13.9M
74
Colorado State University0 awards
$13.9M
75
Department of Commerce Minnesota0 awards
$12.8M
76
Trustees of the University of Pennsylvania, the0 awards
$12.6M
77
Oregon State University0 awards
$12.5M
78
Icf Incorporated, L.l.c.0 awards
$12.2M
79
Washington State University0 awards
$12.1M
80
University of Georgia Research Foundation, Inc.0 awards
$11.8M
81
Alvarez LLC0 awards
$11.8M
82
Arizona State University0 awards
$11.3M
83
University of Alaska Fairbanks0 awards
$11.1M
84
Texas a & M University0 awards
$11.1M
85
Florida State University0 awards
$11M
86
North Carolina State University0 awards
$11M
87
Kpmg LLP0 awards
$10.8M
88
University of North Carolina at Chapel Hill0 awards
$10.7M
89
State of Wisconsin Dept of Admin0 awards
$10.7M
90
University of Florida0 awards
$10.6M
91
University System of New Hampshire0 awards
$10.5M
92
University of Utah0 awards
$10.2M
93
Vanderbilt University0 awards
$9.9M
94
Duke University0 awards
$9.7M
95
Rector & Visitors of the University of Virginia0 awards
$9.4M
96
Skookum Educational Programs0 awards
$9.3M
97
National Academy of Sciences0 awards
$9.1M
98
Yale Univ0 awards
$8.8M
99
University of South Carolina0 awards
$8.6M
100
Indiana Housing and Community Development Authority0 awards
$8.4M

Obligations are the dollars the agency committed, which is not the same as dollars paid out. A recipient can appear on several agencies' lists; each ranks only its own money.

Questions

Who is the Department of Energy's biggest contractor in FY2021?: National Technology & Engineering Solutions of Sandia, LLC, with $4.3B obligated in FY2021. Second is Triad National Security, LLC at $4B.
Where does this ranking come from?: It is computed from USASpending.gov award records, which are U.S. government works and in the public domain. Each figure is the total the Department of Energy obligated to that recipient in FY2021. TheFiscalFinder does the ranking; the underlying figures are the government's own.
How many recipients are shown?: The top 100 for FY2021. Each row opens that recipient's own page, where the same money is broken out by year, by counterparty and by place.
Does a high position mean anything is wrong?: No. This is a description of where public money went in FY2021, computed from public records. It is not an allegation about anyone on it.

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Why the labels? The graph is only worth anything if the links are trusted. Facts taken straight from a federal filing are ✓ from source; figures we calculate are ≈ computed; links we infer (corporate parents, districts, competitors, connections between records) are ≈ inferred, worded carefully, never asserted as fact and never a claim that one thing caused another. Spot an error? Tell us.