Top 100 Department of Energy Contractors, FY2022

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Honeywell International Inc. 2 awardees, including National Technology & Engineering Solutions of Sandia, LLC and Honeywell Federal Manufacturing & Technologies, LLC Top NAICS codes 561210 Facilities Support Services	$5,076,395,232	12.7%	Rank history: #1 in FY2021, #1 in FY2023, #2 in FY2024 and #1 in FY2025; unchanged since FY2021.
2	Consolidated Nuclear Security, LLC Top NAICS codes 561210 Facilities Support Services	$3,802,742,905	9.5%	Rank history: #4 in FY2021, #3 in FY2023, #4 in FY2024 and #7 in FY2025; up 2 since FY2021.
3	Triad National Security, LLC Top NAICS codes 561210 Facilities Support Services	$3,784,600,378	9.5%	Rank history: #2 in FY2021, #2 in FY2023, #1 in FY2024 and #2 in FY2025; down 1 since FY2021.
4	Battelle Memorial Institute 3 awardees, including Battelle Energy Alliance, LLC and Battelle Savannah River Alliance, LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$3,155,714,318	7.9%	Rank history: #3 in FY2021, #9 in FY2023, #6 in FY2024 and #4 in FY2025; down 1 since FY2021.
5	Lawrence Livermore National Security, LLC	$2,572,324,915	6.4%	Rank history: #6 in FY2021, #7 in FY2023, #5 in FY2024 and #5 in FY2025; up 1 since FY2021.
6	Ut-Battelle LLC Top NAICS codes 561210 Facilities Support Services	$2,469,176,857	6.2%	Rank history: #7 in FY2021, #4 in FY2023, #7 in FY2024 and #6 in FY2025; up 1 since FY2021.
7	Fluor Corporation 5 awardees, including Fluor Marine Propulsion, LLC, Fluor-Bwxt Portsmouth LLC and Fluor Federal Petroleum Operations, LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 562910 Remediation Services 561210 Facilities Support Services	$2,105,974,989	5.3%	Rank history: #5 in FY2021, #5 in FY2023, #3 in FY2024 and #3 in FY2025; down 2 since FY2021.
8	Savannah River Nuclear Solutions LLC Top NAICS codes 561210 Facilities Support Services	$2,011,510,081	5.0%	Rank history: #8 in FY2021, #6 in FY2023, #28 in FY2024 and not on the FY2025 list; unchanged since FY2021.
9	Government of the United States 5 awardees, including Uchicago Argonne, LLC, Fermi Research Alliance, LLC and Federal Prison Industries, Inc. Top NAICS codes 337214 Office Furniture (except Wood) Manufacturing 333314 Optical Instrument and Lens Manufacturing 423210 Furniture Merchant Wholesalers	$1,902,145,519	4.8%	Rank history: #9 in FY2021, #10 in FY2023, #23 in FY2024 and not on the FY2025 list; unchanged since FY2021.
10	Amentum Services, Inc. 3 awardees, including Washington River Protection Solutions LLC, Central Plateau Cleanup Company, LLC and Savannah River Remediation LLC Top NAICS codes 562211 Hazardous Waste Treatment and Disposal 562910 Remediation Services	$1,490,428,814	3.7%	Rank history: #10 in FY2021, #13 in FY2023, #8 in FY2024 and not on the FY2025 list; unchanged since FY2021.
11	State of California Controllers Office 2 awardees, including The Regents of the University of California Top NAICS codes 611310 Colleges, Universities, and Professional Schools	$1,292,204,207	3.2%	Rank history: #11 in FY2021, #11 in FY2023, #29 in FY2024 and not on the FY2025 list; unchanged since FY2021.
12	Brookhaven Science Associates LLC Top NAICS codes 541712 Research and Development in the Physical, Engineering, and Life Sciences (except Biotechnology)	$950,764,627	2.4%	Rank history: #15 in FY2021, #15 in FY2023, #16 in FY2024 and #17 in FY2025; up 3 since FY2021.
13	Mission Support & Test Services LLC Top NAICS codes 561210 Facilities Support Services	$853,025,358	2.1%	Rank history: #12 in FY2021, #16 in FY2023, #10 in FY2024 and #15 in FY2025; down 1 since FY2021.
14	Alliance for Energy Innovation, LLC Top NAICS codes 541711 Research and Development in Biotechnology	$751,967,024	1.9%	Rank history: #16 in FY2021, #12 in FY2023, #11 in FY2024 and #16 in FY2025; up 2 since FY2021.
15	The Leland Stanford Junior University Top NAICS codes 541714 Research and Development in Biotechnology (except Nanobiotechnology) 611310 Colleges, Universities, and Professional Schools	$646,577,468	1.6%	Rank history: #17 in FY2021, #18 in FY2023, #17 in FY2024 and #19 in FY2025; up 2 since FY2021.
16	Savannah River Mission Completion, LLC Top NAICS codes 562910 Remediation Services	$642,161,403	1.6%	Rank history: not on the FY2021 list, #14 in FY2023, #13 in FY2024 and #13 in FY2025; new.
17	AECOM 5 awardees, including Nuclear Waste Partnership LLC, Ucor LLC and AECOM Technical Services, Inc. Top NAICS codes 561210 Facilities Support Services 562910 Remediation Services 541330 Engineering Services	$501,608,757	1.3%	Rank history: #13 in FY2021 and not on the FY2023–FY2025 lists; down 4 since FY2021.
18	Fluor Marine Propulsion, LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$428,889,352	1.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
19	Bechtel Corp 2 awardees, including Bechtel National, Inc.	$359,651,280	0.9%	Rank history: #14 in FY2021, #19 in FY2023, #14 in FY2024 and #14 in FY2025; down 5 since FY2021.
20	Oak Ridge Associated Universities, Incorporated Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$316,739,032	0.8%	Rank history: #19 in FY2021, #21 in FY2023, #24 in FY2024 and #26 in FY2025; down 1 since FY2021.
21	Jefferson Science Associates, LLC	$270,413,499	0.7%	Rank history: #23 in FY2021, #22 in FY2023, #26 in FY2024 and #23 in FY2025; up 2 since FY2021.
22	Accenture Inc. Through Accenture Federal Services LLC Top NAICS codes 541512 Computer Systems Design Services	$202,022,497	0.5%	Rank history: not on the FY2021 list, #20 in FY2023, #83 in FY2024 and not on the FY2025 list; new.
23	The Trustees of Princeton University Top NAICS codes 611310 Colleges, Universities, and Professional Schools	$157,101,540	0.4%	Rank history: #24 in FY2021, #23 in FY2023, #31 in FY2024 and #22 in FY2025; up 1 since FY2021.
24	Battelle Energy Alliance, LLC Top NAICS codes 541990 All Other Professional, Scientific, and Technical Services	$155,660,948	0.4%	Rank history: not on the FY2021 list, #8 in FY2023, #15 in FY2024 and not on the FY2025 list; new.
25	Accenture Federal Services LLC 2 awardees Top NAICS codes 541512 Computer Systems Design Services 541519 Other Computer Related Services	$144,607,924	0.4%	Rank history: #18 in FY2021 and not on the FY2023–FY2025 lists; down 7 since FY2021.
26	Triple Canopy Inc. Through Centerra Group, LLC Top NAICS codes 561612 Security Guards and Patrol Services	$143,842,950	0.4%	Rank history: #29 in FY2021, #26 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2021.
27	Leidos Holdings, Inc. 4 awardees, including Leidos, Inc. Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services 541611 Administrative Management and General Management Consulting Services	$127,582,849	0.3%	Rank history: #20 in FY2021, #24 in FY2023, #30 in FY2024 and #24 in FY2025; down 7 since FY2021.
28	Mid-America Conversion Services, LLC Top NAICS codes 325180 Other Basic Inorganic Chemical Manufacturing	$117,059,418	0.3%	Rank history: #27 in FY2021, #25 in FY2023, #32 in FY2024 and #33 in FY2025; down 1 since FY2021.
29	RSI Entech, LLC Top NAICS codes 562910 Remediation Services	$104,116,720	0.3%	Rank history: #33 in FY2021, #29 in FY2023, #35 in FY2024 and not on the FY2025 list; up 4 since FY2021.
30	Ch2M Hill Bwxt West Valley, LLC Top NAICS codes 562910 Remediation Services	$90,434,208	0.2%	Rank history: #30 in FY2021, #30 in FY2023, #64 in FY2024 and not on the FY2025 list; unchanged since FY2021.
31	Hanford Laboratory Management and Integration LLC Top NAICS codes 562910 Remediation Services	$76,900,323	0.2%	Rank history: #47 in FY2021, #31 in FY2023, #33 in FY2024 and #34 in FY2025; up 16 since FY2021.
32	Carahsoft Technology Corp Top NAICS codes 541519 Other Computer Related Services 511210 Software Publishers 334111 Electronic Computer Manufacturing	$67,769,698	0.2%	Rank history: #58 in FY2021, not on the FY2023 list, #57 in FY2024 and #65 in FY2025; up 26 since FY2021.
33	Iowa State University of Science and Technology	$67,406,130	0.2%	Rank history: #34 in FY2021, #27 in FY2023, #40 in FY2024 and #31 in FY2025; up 1 since FY2021.
34	Cook Inlet Region Inc. 7 awardees, including North Wind Portage, Inc., Portsmouth Mission Alliance, LLC and North Wind Construction Services, LLC Top NAICS codes 562910 Remediation Services 561210 Facilities Support Services 236220 Commercial and Institutional Building Construction	$58,379,944	0.1%	Rank history: #25 in FY2021, #38 in FY2023, #60 in FY2024 and not on the FY2025 list; down 9 since FY2021.
35	Atkins Nuclear Secured Holdings Corporation Through Isotek Systems, LLC Top NAICS codes 561990 All Other Support Services	$55,402,567	0.1%	Rank history: #36 in FY2021, #42 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2021.
36	Mele Associates Inc. Top NAICS codes 541330 Engineering Services	$53,577,454	0.1%	Rank history: #48 in FY2021, #34 in FY2023, #37 in FY2024 and #32 in FY2025; up 12 since FY2021.
37	Navarro Research and Engineering, Inc. Top NAICS codes 562910 Remediation Services	$49,778,997	0.1%	Rank history: #32 in FY2021, #37 in FY2023, #41 in FY2024 and #39 in FY2025; down 5 since FY2021.
38	Criterion Systems, L.L.C. Top NAICS codes 541513 Computer Facilities Management Services	$48,298,357	0.1%	Rank history: #31 in FY2021, #39 in FY2023, #63 in FY2024 and not on the FY2025 list; down 7 since FY2021.
39	The Day & Zimmermann Group, Inc. Through SOC LLC Top NAICS codes 561612 Security Guards and Patrol Services	$47,037,075	0.1%	Rank history: #40 in FY2021, #61 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2021.
40	Information International Associates Inc. 2 awardees, including Keylogic, LLC and Keylogic Associates, Inc. Top NAICS codes 541330 Engineering Services 541611 Administrative Management and General Management Consulting Services	$46,607,877	0.1%	Rank history: #39 in FY2021, #36 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2021.
41	Swift & Staley Inc. Top NAICS codes 561210 Facilities Support Services	$46,326,336	0.1%	Rank history: #52 in FY2021, #51 in FY2023, #55 in FY2024 and #61 in FY2025; up 11 since FY2021.
42	Regan Technologies Corp Top NAICS codes 541519 Other Computer Related Services 511210 Software Publishers	$46,011,689	0.1%	Rank history: #54 in FY2021 and not on the FY2023–FY2025 lists; up 12 since FY2021.
43	Parsons Corporation 2 awardees, including Parsons Government Services Inc. and Williams Electric Co Inc. Top NAICS codes 236210 Industrial Building Construction 541611 Administrative Management and General Management Consulting Services 541330 Engineering Services	$45,866,743	0.1%	Rank history: #26 in FY2021, #48 in FY2023, #39 in FY2024 and #43 in FY2025; down 17 since FY2021.
44	Boston Government Services, LLC Top NAICS codes 541620 Environmental Consulting Services	$45,112,313	0.1%	Rank history: #46 in FY2021, #52 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2021.
45	Booz Allen Hamilton Holding Corporation Through Booz Allen Hamilton Inc. Top NAICS codes 561990 All Other Support Services 541511 Custom Computer Programming Services 541612 Human Resources Consulting Services	$45,079,851	0.1%	Rank history: #50 in FY2021, #40 in FY2023, #42 in FY2024 and #42 in FY2025; up 5 since FY2021.
46	WE2 Support Services 8A JV LLC Top NAICS codes 561210 Facilities Support Services	$39,690,611	0.1%	Rank history: #44 in FY2021, #41 in FY2023, #51 in FY2024 and #70 in FY2025; down 2 since FY2021.
47	Project Enhancement Corporation Top NAICS codes 541620 Environmental Consulting Services 541611 Administrative Management and General Management Consulting Services	$39,399,492	0.1%	Rank history: #49 in FY2021, #44 in FY2023, #48 in FY2024 and #46 in FY2025; up 2 since FY2021.
48	Unwin Co Top NAICS codes 541690 Other Scientific and Technical Consulting Services	$38,009,051	0.1%	Rank history: #51 in FY2021, #49 in FY2023, #54 in FY2024 and #57 in FY2025; up 3 since FY2021.
49	North Wind Portage, Inc. Top NAICS codes 562910 Remediation Services	$38,005,427	0.1%	Rank history: not on the FY2021 list, not on the FY2023 list, #67 in FY2024 and not on the FY2025 list; new.
50	Agustawestland Philadelphia Corporation Through Leonardo Helicopters US Corporation Top NAICS codes 336411 Aircraft Manufacturing	$35,374,998	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
51	Perikin Enterprises LLC Top NAICS codes 236220 Commercial and Institutional Building Construction 541511 Custom Computer Programming Services 561110 Office Administrative Services	$31,061,197	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 64 since FY2021.
52	Fluor-Bwxt Portsmouth LLC Top NAICS codes 562910 Remediation Services	$30,870,000	0.1%	Rank history: #38 in FY2021 and not on the FY2023–FY2025 lists; down 14 since FY2021.
53	The Aerospace Corporation Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$29,274,897	0.1%	Rank history: #66 in FY2021, #59 in FY2023, #59 in FY2024 and #52 in FY2025; up 13 since FY2021.
54	General Atomic Technologies Corporation Through General Atomics Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$28,211,870	0.1%	Rank history: #53 in FY2021, #50 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2021.
55	Maximus Inc. Through Maximus Federal Technology Solutions, LLC Top NAICS codes 541512 Computer Systems Design Services 541511 Custom Computer Programming Services	$27,595,391	0.1%	Rank history: not on the FY2021 list, #65 in FY2023 and not on the FY2024–FY2025 lists; up 83 since FY2021.
56	Guidehouse Inc. 2 awardees Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$27,206,338	0.1%	Rank history: #75 in FY2021, #53 in FY2023 and not on the FY2024–FY2025 lists; up 19 since FY2021.
57	Techsource, LLC Top NAICS codes 541330 Engineering Services	$26,815,418	0.1%	Rank history: #57 in FY2021, #56 in FY2023, #53 in FY2024 and not on the FY2025 list; unchanged since FY2021.
58	BWX Technologies, Inc. 2 awardees, including Nuclear Fuel Services Inc. and Bwxt Nog Technologies, Inc. Top NAICS codes 325180 Other Basic Inorganic Chemical Manufacturing 562211 Hazardous Waste Treatment and Disposal	$26,559,156	0.1%	Rank history: not on the FY2021 list, #28 in FY2023, #38 in FY2024 and #28 in FY2025; up 367 since FY2021.
59	Johnson Controls Security Solutions LLC 3 awardees, including Johnson Controls Government Systems, LLC, Johnson Controls Fire Protection LP and Johnson Controls, Inc. Top NAICS codes 541330 Engineering Services 334290 Other Communications Equipment Manufacturing 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing	$26,458,694	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 122 since FY2021.
60	Edgewater Federal Solutions, Inc. Top NAICS codes 518210 Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services 541519 Other Computer Related Services 541330 Engineering Services	$26,068,942	0.1%	Rank history: #68 in FY2021, #66 in FY2023, #74 in FY2024 and #71 in FY2025; up 8 since FY2021.
61	Buckeye Terminals LLC Top NAICS codes 493190 Other Warehousing and Storage	$25,795,480	0.1%	Rank history: #62 in FY2021, #83 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2021.
62	Centrus Energy Corp. 2 awardees, including American Centrifuge Operating, LLC Top NAICS codes 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$25,689,094	0.1%	Rank history: #43 in FY2021, #43 in FY2023, #72 in FY2024 and not on the FY2025 list; down 19 since FY2021.
63	Apogee Group, LLC Top NAICS codes 237990 Other Heavy and Civil Engineering Construction 541519 Other Computer Related Services	$25,649,637	0.1%	Rank history: #55 in FY2021, #46 in FY2023 and not on the FY2024–FY2025 lists; down 8 since FY2021.
64	Tech2 Solutions Top NAICS codes 237990 Other Heavy and Civil Engineering Construction	$25,424,837	0.1%	Rank history: #45 in FY2021, #72 in FY2023, #87 in FY2024 and not on the FY2025 list; down 19 since FY2021.
65	Enterprise Technical Assistance Services Inc. Top NAICS codes 562910 Remediation Services	$23,373,185	0.1%	Rank history: #61 in FY2021, #60 in FY2023, #66 in FY2024 and not on the FY2025 list; down 4 since FY2021.
66	General Dynamics Corporation 3 awardees, including General Dynamics Information Technology, Inc. and General Dynamics Mission Systems, Inc. Top NAICS codes 541519 Other Computer Related Services 334220 Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing 334111 Electronic Computer Manufacturing	$22,915,560	0.1%	Rank history: not on the FY2021 list, #75 in FY2023, #65 in FY2024 and #80 in FY2025; up 62 since FY2021.
67	Kupono Government Services, LLC Top NAICS codes 611430 Professional and Management Development Training	$22,206,460	0.1%	Rank history: #60 in FY2021, #67 in FY2023, #73 in FY2024 and not on the FY2025 list; down 7 since FY2021.
68	Westinghouse Electric Company LLC Through Westinghouse Government Services LLC Top NAICS codes 334517 Irradiation Apparatus Manufacturing	$21,946,768	0.1%	Rank history: #69 in FY2021, #88 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2021.
69	Archetype II LLC Top NAICS codes 523930 Investment Advice	$19,262,838	<0.1%	Rank history: not on the FY2021 list, #55 in FY2023, #62 in FY2024 and not on the FY2025 list; up 34 since FY2021.
70	Palantir Technologies Inc. Top NAICS codes 511210 Software Publishers	$17,927,212	<0.1%	Rank history: not on the FY2021 list, #78 in FY2023, #75 in FY2024 and #73 in FY2025; up 34 since FY2021.
71	Intepros Federal Incorporated Top NAICS codes 541513 Computer Facilities Management Services	$17,556,417	<0.1%	Rank history: #67 in FY2021, #68 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2021.
72	Northbound Solutions LLC Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$16,695,557	<0.1%	Rank history: #80 in FY2021 and not on the FY2023–FY2025 lists; up 8 since FY2021.
73	Alliance Data Systems Corporation Through Epsilon Inc. Top NAICS codes 541512 Computer Systems Design Services	$15,472,347	<0.1%	Rank history: #84 in FY2021 and not on the FY2023–FY2025 lists; up 11 since FY2021.
74	Nuclear Waste Partnership LLC Top NAICS codes 561210 Facilities Support Services	$15,466,345	<0.1%	Rank history: #35 in FY2021 and not on the FY2023–FY2025 lists; down 39 since FY2021.
75	Colonial Metals, Inc. Top NAICS codes 332999 All Other Miscellaneous Fabricated Metal Product Manufacturing	$15,260,650	<0.1%	Rank history: #92 in FY2021, #94 in FY2023 and not on the FY2024–FY2025 lists; up 17 since FY2021.
76	ICF International, Inc. 2 awardees, including ICF Incorporated, L.L.C. Top NAICS codes 541611 Administrative Management and General Management Consulting Services 541330 Engineering Services	$15,080,639	<0.1%	Rank history: #79 in FY2021, #64 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2021.
77	BTP Services, LLC Top NAICS codes 541620 Environmental Consulting Services	$14,783,022	<0.1%	Rank history: #77 in FY2021 and not on the FY2023–FY2025 lists; unchanged since FY2021.
78	Tetra Tech, Inc. 3 awardees, including Bluewater Federal Solutions, Inc. Top NAICS codes 541330 Engineering Services 541620 Environmental Consulting Services	$14,721,209	<0.1%	Rank history: #88 in FY2021, #93 in FY2023, #81 in FY2024 and #66 in FY2025; up 10 since FY2021.
79	Regents of the University of California the (4458)	$14,220,763	<0.1%	Rank history: #37 in FY2021, #57 in FY2023, #70 in FY2024 and #69 in FY2025; down 42 since FY2021.
80	RSI Nuclear, LLC Top NAICS codes 541330 Engineering Services 541690 Other Scientific and Technical Consulting Services	$14,202,842	<0.1%	Rank history: #85 in FY2021 and not on the FY2023–FY2025 lists; up 5 since FY2021.
81	Koniag, Inc. 3 awardees, including Kadiak LLC, Tuknik Government Services LLC and Eagle Harbor Solutions LLC Top NAICS codes 541618 Other Management Consulting Services 541519 Other Computer Related Services	$14,170,913	<0.1%	Rank history: #82 in FY2021, #70 in FY2023, not on the FY2024 list and #63 in FY2025; up 1 since FY2021.
82	Systematic Management Services, Inc. Top NAICS codes 541330 Engineering Services	$13,694,183	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 27 since FY2021.
83	Allegheny Science & Technology Corporation Top NAICS codes 541330 Engineering Services 541990 All Other Professional, Scientific, and Technical Services	$13,681,715	<0.1%	Rank history: #78 in FY2021, #76 in FY2023, #80 in FY2024 and #74 in FY2025; down 5 since FY2021.
84	Cohnreznick LLP Top NAICS codes 541211 Offices of Certified Public Accountants	$13,409,550	<0.1%	Rank history: not on the FY2021 list, #86 in FY2023 and not on the FY2024–FY2025 lists; up 68 since FY2021.
85	Groupe Reel Through Reel COH Inc. Top NAICS codes 333923 Overhead Traveling Crane, Hoist, and Monorail System Manufacturing	$12,726,000	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 37 since FY2021.
86	Kpmg L.L.P. 2 awardees Top NAICS codes 541211 Offices of Certified Public Accountants	$12,482,127	<0.1%	Rank history: #89 in FY2021, #91 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2021.
87	Evoke Research and Consulting, LLC Top NAICS codes 541519 Other Computer Related Services	$12,354,113	<0.1%	Rank history: #76 in FY2021, #89 in FY2023 and not on the FY2024–FY2025 lists; down 11 since FY2021.
88	Dependable Global Solutions, LLC Top NAICS codes 541690 Other Scientific and Technical Consulting Services	$12,335,029	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
89	Confederated Salish and Kootenai Tribes 3 awardees, including S & K Logistics Services LLC and S & K Federal Services LLC Top NAICS codes 561210 Facilities Support Services 562910 Remediation Services 541330 Engineering Services	$12,257,880	<0.1%	Rank history: #72 in FY2021, #71 in FY2023 and not on the FY2024–FY2025 lists; down 17 since FY2021.
90	Sealaska Remediation Solutions, LLC Top NAICS codes 561990 All Other Support Services	$12,142,857	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
91	Southwest Research Institute Top NAICS codes 541330 Engineering Services 541611 Administrative Management and General Management Consulting Services 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)	$11,967,780	<0.1%	Rank history: #71 in FY2021, not on the FY2023 list, #95 in FY2024 and not on the FY2025 list; down 20 since FY2021.
92	Four Rivers Nuclear Partnership LLC Top NAICS codes 562910 Remediation Services	$11,873,151	<0.1%	Rank history: #97 in FY2021, #69 in FY2023 and not on the FY2024–FY2025 lists; up 5 since FY2021.
93	Global Engineering & Technology Inc. Top NAICS codes 541690 Other Scientific and Technical Consulting Services	$11,517,581	<0.1%	Rank history: #81 in FY2021 and not on the FY2023–FY2025 lists; down 12 since FY2021.
94	Professional Project Services, Inc. Top NAICS codes 562910 Remediation Services	$11,496,745	<0.1%	Rank history: #100 in FY2021, not on the FY2023–FY2024 lists and #76 in FY2025; up 6 since FY2021.
95	Golden Svcs, LLC Top NAICS codes 561612 Security Guards and Patrol Services	$11,465,527	<0.1%	Rank history: #87 in FY2021 and not on the FY2023–FY2025 lists; down 8 since FY2021.
96	Nana Regional Corporation Inc 5 awardees, including Tuva LLC, Talu LLC and Rivertech LLC Top NAICS codes 541690 Other Scientific and Technical Consulting Services 337127 Institutional Furniture Manufacturing 541330 Engineering Services	$11,117,050	<0.1%	Rank history: #98 in FY2021 and not on the FY2023–FY2025 lists; up 2 since FY2021.
97	Attainx Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$10,547,829	<0.1%	Rank history: #96 in FY2021 and not on the FY2023–FY2025 lists; down 1 since FY2021.
98	Cast Specialty Transportation Inc. Top NAICS codes 484230 Specialized Freight (except Used Goods) Trucking, Long-Distance	$10,532,811	<0.1%	Rank history: not on the FY2021 list, not on the FY2023 list, #98 in FY2024 and not on the FY2025 list; up 130 since FY2021.
99	Technomics Inc. Top NAICS codes 541330 Engineering Services	$10,400,837	<0.1%	Rank history: #73 in FY2021, #97 in FY2023, #79 in FY2024 and #72 in FY2025; down 26 since FY2021.
100	Miracorp Inc. Top NAICS codes 541611 Administrative Management and General Management Consulting Services	$10,359,811	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 66 since FY2021.

How this ranking works

• Source: every contract action FPDS records (as published on SAM.gov) in the period, as GovTribe received it.
• Amounts are net obligations: what was obligated, less what was deobligated. Shares are of $40 billion obligated before deobligations, so they never pass 100%.
• Parent companies: each action counts under the ultimate parent its award record names, or under the awardee when it names none, so no dollar counts twice. Parents of the same name (Inc., LLC and the like aside) count as one company, since FPDS records a company's parent under more than one UEI over time. GovTribe corrects a few parents and names by hand; see the corrections.
• Fiscal year 2022 ran Oct 1, 2021 – Sep 30, 2022. The Department of Defense reports its contract actions to FPDS about 90 days late, so a fiscal year is ranked once they're in, in February, and the list doesn't change after.
• Rank changes compare with FY2021. "New" marks a company outside that period's top 500, and "Returned" one of those that was on an earlier fiscal year's list.
• Rank lines show each company's rank on every fiscal year's list since FY2021, #1 at the top, on a scale that gives the top of the list more room. A dashed stretch spans years it wasn't on the list. The step from FY2021 takes the color of the rank change beside it.
• Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.

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