Top 100 Contractors in NAICS 541380: Testing Laboratories and Services, Aug 2025–Jul 2026

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Agile Defense, LLC Top agencies DISA (Defense Information Systems Agency)	$52,246,618	8.1%	Rank history: not on the FY2021–FY2023 lists, #2 in FY2024 and #2 in FY2025; up 1 since Aug 2024–Jul 2025.
2	Astrion Group, LLC Top agencies NASA (National Aeronautics and Space Administration)	$50,835,537	7.9%	Rank history: not on the FY2021 list, #44 in FY2022, #2 in FY2023, #3 in FY2024 and #1 in FY2025; up 1 since Aug 2024–Jul 2025.
3	RTX Corporation 2 awardees, including Raytheon Company Top agencies USAF (Department of the Air Force)	$40,334,993	6.3%	Rank history: #3 in FY2021, #3 in FY2022, #4 in FY2023, #6 in FY2024 and #6 in FY2025; up 4 since Aug 2024–Jul 2025.
4	Merrick & Company Top agencies USDA (Department of Agriculture)	$39,117,670	6.1%	Rank history: not on the FY2021–FY2023 lists, #40 in FY2024 and #3 in FY2025; up 29 since Aug 2024–Jul 2025.
5	Transportation Research Center Inc. Top agencies DOT (Department of Transportation)	$24,818,132	3.9%	Rank history: #4 in FY2021, #5 in FY2022, #3 in FY2023, #5 in FY2024 and #4 in FY2025; down 1 since Aug 2024–Jul 2025.
6	ManTech International Corporation Through Mantech Advanced Systems International, Inc. Top agencies USAF (Department of the Air Force)	$22,073,261	3.4%	Rank history: not on the FY2021–FY2024 lists and #8 in FY2025; up 3 since Aug 2024–Jul 2025.
7	Ginkgo Bioworks Holdings Inc. Through Ginkgo Bioworks, Inc. Top agencies HHS (Department of Health and Human Services)	$20,999,984	3.3%	Rank history: not on the FY2021 list, #6 in FY2022, #5 in FY2023, #1 in FY2024 and not on the FY2025 list; down 6 since Aug 2024–Jul 2025.
8	The Bionetics Corporation Top agencies USAF (Department of the Air Force) DOI (Department of the Interior)	$18,448,005	2.9%	Rank history: #2 in FY2021, #4 in FY2022, #6 in FY2023, #8 in FY2024 and #5 in FY2025; down 2 since Aug 2024–Jul 2025.
9	Infinity Biologix LLC Top agencies VA (Department of Veterans Affairs)	$15,102,070	2.3%	Rank history: #6 in FY2021, #10 in FY2022, not on the FY2023 list, #20 in FY2024 and #17 in FY2025; up 11 since Aug 2024–Jul 2025.
10	Tempus AI, Inc. Top agencies VA (Department of Veterans Affairs)	$11,090,783	1.7%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
11	Mccrone Associates Inc. Top agencies USAF (Department of the Air Force)	$11,036,317	1.7%	Rank history: not on the FY2021–FY2024 lists and #11 in FY2025; up 2 since Aug 2024–Jul 2025.
12	University of California, Davis Top agencies EPA (Environmental Protection Agency) DOI (Department of the Interior) USAF (Department of the Air Force)	$8,128,626	1.3%	Rank history: not on the FY2021–FY2023 lists, #50 in FY2024 and #14 in FY2025; up 4 since Aug 2024–Jul 2025.
13	Guidehouse Inc. 2 awardees, including Aptim Federal Services, LLC Top agencies Navy (Department of the Navy) EPA (Environmental Protection Agency) OSD (Office of the Secretary of Defense)	$8,029,570	1.2%	Rank history: not on the FY2021–FY2023 lists, #24 in FY2024 and #10 in FY2025; down 2 since Aug 2024–Jul 2025.
14	Baylor College of Medicine Top agencies HHS (Department of Health and Human Services)	$7,615,247	1.2%	Rank history: #12 in FY2021, #13 in FY2022, #8 in FY2023, #9 in FY2024 and #13 in FY2025; down 6 since Aug 2024–Jul 2025.
15	Azenta US Inc. 2 awardees Top agencies HHS (Department of Health and Human Services)	$6,973,560	1.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
16	ICF International Inc. 2 awardees, including ICF Incorporated, L.L.C. and ICF Environmental, Inc. Top agencies EPA (Environmental Protection Agency) DOI (Department of the Interior)	$5,860,706	0.9%	Rank history: not on the FY2021–FY2023 lists, #19 in FY2024 and #28 in FY2025; up 11 since Aug 2024–Jul 2025.
17	Bangham Engineering Inc. Top agencies DOT (Department of Transportation)	$5,650,395	0.9%	Rank history: not on the FY2021–FY2023 lists, #30 in FY2024 and #26 in FY2025; up 2 since Aug 2024–Jul 2025.
18	Teledyne Flir Unmanned Ground Systems Inc Through Teledyne Brown Engineering, Inc. Top agencies USAF (Department of the Air Force)	$5,396,812	0.8%	Rank history: #18 in FY2021, #32 in FY2022, #20 in FY2023, #25 in FY2024 and #18 in FY2025; up 4 since Aug 2024–Jul 2025.
19	Ardl Inc. Top agencies Army (Department of the Army)	$5,108,588	0.8%	Rank history: not on the FY2021 list, #92 in FY2022, #56 in FY2023, not on the FY2024 list and #68 in FY2025; up 53 since Aug 2024–Jul 2025.
20	The Charles Stark Draper Laboratory, Inc. Top agencies USAF (Department of the Air Force)	$4,936,659	0.8%	Rank history: #19 in FY2021, #23 in FY2022, #26 in FY2023, #27 in FY2024 and #22 in FY2025; up 9 since Aug 2024–Jul 2025.
21	Gryphon Technologies L.C. Top agencies USAF (Department of the Air Force)	$4,835,549	0.8%	Rank history: not on the FY2021–FY2023 lists, #31 in FY2024 and #27 in FY2025; up 10 since Aug 2024–Jul 2025.
22	The Broad Institute, Inc. 2 awardees Top agencies HHS (Department of Health and Human Services)	$4,787,360	0.7%	Rank history: #5 in FY2021, #15 in FY2022, #41 in FY2023, #7 in FY2024 and #25 in FY2025; down 17 since Aug 2024–Jul 2025.
23	Emory University Top agencies HHS (Department of Health and Human Services)	$4,665,183	0.7%	Rank history: not on the FY2021 list, #17 in FY2022, #1 in FY2023, #23 in FY2024 and #9 in FY2025; down 11 since Aug 2024–Jul 2025.
24	Bristol Bay Native Corporation Through Eagle Integrated Services, LLC Top agencies Navy (Department of the Navy)	$4,348,144	0.7%	Rank history: not on the FY2021–FY2024 lists and #56 in FY2025; new, not ranked in Aug 2024–Jul 2025.
25	Eastern Research Group Inc. Top agencies EPA (Environmental Protection Agency)	$4,241,383	0.7%	Rank history: #22 in FY2021, #41 in FY2022, #35 in FY2023, #29 in FY2024 and #30 in FY2025; up 7 since Aug 2024–Jul 2025.
26	Sports Medicine Research and Testing Laboratory Top agencies Navy (Department of the Navy) DHA (Defense Health Agency)	$4,055,770	0.6%	Rank history: not on the FY2021–FY2022 lists, #48 in FY2023, #34 in FY2024 and #31 in FY2025; up 8 since Aug 2024–Jul 2025.
27	Akesogen, Inc. Top agencies VA (Department of Veterans Affairs)	$4,000,000	0.6%	Rank history: #10 in FY2021, #8 in FY2022, #24 in FY2023, #37 in FY2024 and #32 in FY2025; up 24 since Aug 2024–Jul 2025.
28	Johns Hopkins University 2 awardees, including The Johns Hopkins University Applied Physics Laboratory LLC Top agencies DHS (Department of Homeland Security) HHS (Department of Health and Human Services)	$3,740,560	0.6%	Rank history: not on the FY2021–FY2024 lists and #34 in FY2025; up 295 since Aug 2024–Jul 2025.
29	The Boeing Company 2 awardees Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$3,628,156	0.6%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
30	Chemtex Environmental Laboratory, Inc. Top agencies EPA (Environmental Protection Agency)	$3,500,000	0.5%	Rank history: not on the FY2021 list, #47 in FY2022, not on the FY2023 list, #59 in FY2024 and #19 in FY2025; up 13 since Aug 2024–Jul 2025.
31	Bonner Analytical Testing Co Top agencies EPA (Environmental Protection Agency)	$3,500,000	0.5%	Rank history: not on the FY2021 list, #38 in FY2022, #57 in FY2023, #43 in FY2024 and #20 in FY2025; up 6 since Aug 2024–Jul 2025.
32	The Leland Stanford Junior University Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$3,399,288	0.5%	Rank history: not on the FY2021–FY2023 lists, #67 in FY2024 and #36 in FY2025; up 27 since Aug 2024–Jul 2025.
33	Techlaw Consultants Inc. Top agencies EPA (Environmental Protection Agency)	$3,378,874	0.5%	Rank history: #69 in FY2021, not on the FY2022–FY2023 lists, #35 in FY2024 and #29 in FY2025; down 3 since Aug 2024–Jul 2025.
34	The Medical University of South Carolina Top agencies VA (Department of Veterans Affairs)	$2,944,461	0.5%	Rank history: not on the FY2021–FY2025 lists; up 24 since Aug 2024–Jul 2025.
35	Applus Idiada Karco Engineering, LLC Top agencies DOT (Department of Transportation)	$2,676,400	0.4%	Rank history: #90 in FY2021, not on the FY2022 list, #50 in FY2023, #56 in FY2024 and #51 in FY2025; up 19 since Aug 2024–Jul 2025.
36	Cherokee Nation Through Cherokee Nation System Solutions LLC Top agencies Commerce (Department of Commerce)	$2,660,222	0.4%	Rank history: not on the FY2021–FY2024 lists and #54 in FY2025; new, not ranked in Aug 2024–Jul 2025.
37	Serco Inc Top agencies EPA (Environmental Protection Agency)	$2,467,974	0.4%	Rank history: not on the FY2021–FY2022 lists, #47 in FY2023, #45 in FY2024 and #41 in FY2025; up 7 since Aug 2024–Jul 2025.
38	Enomis Idril JV LLC Top agencies Army (Department of the Army)	$2,411,909	0.4%	Rank history: not on the FY2021–FY2024 lists and #76 in FY2025; up 50 since Aug 2024–Jul 2025.
39	Fugro USA Land, Inc. Top agencies Army (Department of the Army)	$2,399,309	0.4%	Rank history: not on the FY2021–FY2024 lists and #50 in FY2025; up 14 since Aug 2024–Jul 2025.
40	Deutsches Zentrum FÜR Luft- UND Raumfahrt E.V. Top agencies NASA (National Aeronautics and Space Administration)	$2,370,219	0.4%	Rank history: #46 in FY2021, #26 in FY2022, not on the FY2023 list, #12 in FY2024 and #91 in FY2025; up 55 since Aug 2024–Jul 2025.
41	Banner Health Top agencies HHS (Department of Health and Human Services)	$2,332,200	0.4%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
42	Solutions Through Innovative Technologies Inc. Top agencies USAF (Department of the Air Force)	$2,291,180	0.4%	Rank history: not on the FY2021 list, #55 in FY2022, #46 in FY2023, #33 in FY2024 and #46 in FY2025; down 4 since Aug 2024–Jul 2025.
43	Brick and Byte Inc. Top agencies DOT (Department of Transportation)	$2,270,000	0.4%	Rank history: not on the FY2021–FY2024 lists and #45 in FY2025; new, not ranked in Aug 2024–Jul 2025.
44	MRIGLOBAL Top agencies DOD (Department of Defense)	$2,207,198	0.3%	Rank history: not on the FY2021–FY2022 lists, #22 in FY2023, #22 in FY2024 and #23 in FY2025; down 18 since Aug 2024–Jul 2025.
45	MGA Research Corporation 2 awardees Top agencies DOT (Department of Transportation)	$2,119,230	0.3%	Rank history: not on the FY2021 list, #76 in FY2022, #68 in FY2023, not on the FY2024 list and #67 in FY2025; new, not ranked in Aug 2024–Jul 2025.
46	Afognak Native Corporation Through Alutiiq Essential Services LLC Top agencies NASA (National Aeronautics and Space Administration)	$2,015,858	0.3%	Rank history: #21 in FY2021, #27 in FY2022, #25 in FY2023, #51 in FY2024 and #21 in FY2025; new, not ranked in Aug 2024–Jul 2025.
47	Precision for Medicine, Inc. Top agencies HHS (Department of Health and Human Services)	$1,944,345	0.3%	Rank history: not on the FY2021–FY2023 lists, #57 in FY2024 and #39 in FY2025; down 6 since Aug 2024–Jul 2025.
48	New York Genome Center, Inc. Top agencies HHS (Department of Health and Human Services)	$1,890,886	0.3%	Rank history: #20 in FY2021, not on the FY2022–FY2023 lists, #26 in FY2024 and #64 in FY2025; down 23 since Aug 2024–Jul 2025.
49	City of San Diego Top agencies IBWC (International Boundary and Water Commission U.S.-Mexico)	$1,888,871	0.3%	Rank history: not on the FY2021–FY2023 lists, #88 in FY2024 and #79 in FY2025; up 13 since Aug 2024–Jul 2025.
50	Soil and Land Use Technology, Inc. Top agencies DOT (Department of Transportation)	$1,870,107	0.3%	Rank history: not on the FY2021–FY2023 lists, #60 in FY2024 and #38 in FY2025; down 11 since Aug 2024–Jul 2025.
51	Transnetyx Inc. Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$1,814,003	0.3%	Rank history: not on the FY2021–FY2023 lists, #79 in FY2024 and #80 in FY2025; up 22 since Aug 2024–Jul 2025.
52	Calspan, LLC Top agencies DOT (Department of Transportation)	$1,801,038	0.3%	Rank history: not on the FY2021–FY2023 lists, #90 in FY2024 and #74 in FY2025; up 56 since Aug 2024–Jul 2025.
53	Consolidated Safety Services Incorporated Top agencies EPA (Environmental Protection Agency)	$1,792,560	0.3%	Rank history: #33 in FY2021, #45 in FY2022, #38 in FY2023, #38 in FY2024 and #24 in FY2025; down 25 since Aug 2024–Jul 2025.
54	Applied Research In Acoustics LLC Top agencies Army (Department of the Army)	$1,701,192	0.3%	Rank history: not on the FY2021–FY2023 lists, #95 in FY2024 and #83 in FY2025; up 31 since Aug 2024–Jul 2025.
55	Tech O. R., LLC Top agencies Army (Department of the Army) VA (Department of Veterans Affairs)	$1,684,178	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
56	Aqua Survey, Inc. Top agencies Army (Department of the Army)	$1,650,063	0.3%	Rank history: #80 in FY2021, #58 in FY2022, #91 in FY2023, #61 in FY2024 and #58 in FY2025; up 4 since Aug 2024–Jul 2025.
57	Bluepath Labs LLC Top agencies DHS (Department of Homeland Security)	$1,621,180	0.3%	Rank history: #58 in FY2021, #67 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
58	Fortive Corporation 4 awardees, including Landauer, Inc., Pacific Scientific Energetic Materials Company (California Llc) and Fluke Electronics Corp Top agencies Navy (Department of the Navy) VA (Department of Veterans Affairs) Army (Department of the Army)	$1,607,071	0.2%	Rank history: not on the FY2021–FY2024 lists and #61 in FY2025; up 77 since Aug 2024–Jul 2025.
59	The Regents of the University of Colorado Top agencies Commerce (Department of Commerce)	$1,588,775	0.2%	Rank history: #84 in FY2021, #63 in FY2022, #64 in FY2023, not on the FY2024 list and #44 in FY2025; up 21 since Aug 2024–Jul 2025.
60	Techfocus LLC Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force) VA (Department of Veterans Affairs)	$1,529,256	0.2%	Rank history: not on the FY2021–FY2022 lists, #100 in FY2023, #93 in FY2024 and #55 in FY2025; up 47 since Aug 2024–Jul 2025.
61	RTI Laboratories Inc. Top agencies DOI (Department of the Interior) DHA (Defense Health Agency) Army (Department of the Army)	$1,508,054	0.2%	Rank history: not on the FY2021–FY2022 lists, #43 in FY2023, #42 in FY2024 and #88 in FY2025; up 5 since Aug 2024–Jul 2025.
62	Asrt, Inc. Top agencies HHS (Department of Health and Human Services)	$1,498,661	0.2%	Rank history: not on the FY2021–FY2024 lists and #65 in FY2025; up 6 since Aug 2024–Jul 2025.
63	Chugai Technos Corporation Top agencies Navy (Department of the Navy) Army (Department of the Army) DHA (Defense Health Agency)	$1,444,968	0.2%	Rank history: not on the FY2021–FY2024 lists and #71 in FY2025; down 2 since Aug 2024–Jul 2025.
64	Jung Research and Development Corp Top agencies MDA (DOD Missile Defense Agency) USAF (Department of the Air Force)	$1,438,383	0.2%	Rank history: not on the FY2021 list, #54 in FY2022, #53 in FY2023, #49 in FY2024 and #62 in FY2025; down 1 since Aug 2024–Jul 2025.
65	OLH Technical Services, LLC Top agencies DOJ (Department of Justice)	$1,424,551	0.2%	Rank history: not on the FY2021–FY2023 lists, #17 in FY2024 and #15 in FY2025; down 55 since Aug 2024–Jul 2025.
66	Vanderbilt University Medical Center Top agencies VA (Department of Veterans Affairs)	$1,351,690	0.2%	Rank history: not on the FY2021–FY2025 lists; up 64 since Aug 2024–Jul 2025.
67	I-2-I Solutions, Inc. Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) DHA (Defense Health Agency)	$1,320,561	0.2%	Rank history: not on the FY2021–FY2024 lists and #70 in FY2025; up 100 since Aug 2024–Jul 2025.
68	Dynamic Research, Inc. Top agencies DOT (Department of Transportation)	$1,250,091	0.2%	Rank history: not on the FY2021–FY2023 lists, #55 in FY2024 and #77 in FY2025; down 13 since Aug 2024–Jul 2025.
69	Kratos Systems and Solutions, Inc. Through Kratos Sre, Inc. Top agencies Navy (Department of the Navy)	$1,236,740	0.2%	Rank history: not on the FY2021–FY2024 lists and #52 in FY2025; new, not ranked in Aug 2024–Jul 2025.
70	Thermo Fisher Scientific Inc. 3 awardees, including Fisher Bioservices Inc., Olink Proteomics Inc. and Life Technologies Corporation Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy) EPA (Environmental Protection Agency)	$1,232,418	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
71	Veritext LLC 2 awardees, including Pace Analytical Services, LLC and Environmental Science LLC Top agencies Army (Department of the Army) DOT (Department of Transportation) DOI (Department of the Interior)	$1,217,318	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
72	Battelle Memorial Institute Top agencies Army (Department of the Army)	$1,216,060	0.2%	Rank history: #73 in FY2021, #74 in FY2022, #96 in FY2023, #74 in FY2024 and #63 in FY2025; down 5 since Aug 2024–Jul 2025.
73	SGS North America Inc. 2 awardees, including Ama Analytical Services, Inc. Top agencies HHS (Department of Health and Human Services) DOI (Department of the Interior) DHA (Defense Health Agency)	$1,210,778	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
74	University of Washington Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$1,192,252	0.2%	Rank history: not on the FY2021–FY2023 lists, #28 in FY2024 and not on the FY2025 list; down 51 since Aug 2024–Jul 2025.
75	PPI Technical Services LLC Top agencies USAF (Department of the Air Force)	$1,190,523	0.2%	Rank history: not on the FY2021–FY2022 lists, #15 in FY2023, #87 in FY2024 and #78 in FY2025; up 6 since Aug 2024–Jul 2025.
76	Cape Fear Analytical, LLC Top agencies EPA (Environmental Protection Agency) Army (Department of the Army)	$1,172,291	0.2%	Rank history: not on the FY2021 list, #75 in FY2022, not on the FY2023–FY2024 lists and #42 in FY2025; down 12 since Aug 2024–Jul 2025.
77	Phigenics LLC Top agencies VA (Department of Veterans Affairs)	$1,166,417	0.2%	Rank history: not on the FY2021–FY2024 lists and #92 in FY2025; up 29 since Aug 2024–Jul 2025.
78	Hyperion Biotechnology, Inc. Top agencies VA (Department of Veterans Affairs)	$1,160,768	0.2%	Rank history: not on the FY2021–FY2024 lists and #87 in FY2025; up 16 since Aug 2024–Jul 2025.
79	Virginia Commonwealth University Health System Authority 2 awardees, including Virginia Polytechnic Institute & State University and VCU Health System Authority Top agencies DOT (Department of Transportation) VA (Department of Veterans Affairs)	$1,145,335	0.2%	Rank history: not on the FY2021–FY2022 lists, #12 in FY2023, #16 in FY2024 and #59 in FY2025; down 61 since Aug 2024–Jul 2025.
80	Regents of the University of Michigan Top agencies DOT (Department of Transportation) VA (Department of Veterans Affairs)	$1,133,648	0.2%	Rank history: #96 in FY2021, #29 in FY2022, #34 in FY2023, #75 in FY2024 and #89 in FY2025; down 10 since Aug 2024–Jul 2025.
81	Amentum Holdings, Inc. Through Amentum Services, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$1,121,871	0.2%	Rank history: not on the FY2021–FY2024 lists and #86 in FY2025; up 153 since Aug 2024–Jul 2025.
82	Marianas Geotech Services LLC Top agencies USAF (Department of the Air Force)	$1,088,120	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
83	Star Geoenvironmental LLC Top agencies Army (Department of the Army)	$1,054,384	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
84	Caredx, Inc. Top agencies VA (Department of Veterans Affairs)	$1,049,561	0.2%	Rank history: not on the FY2021–FY2025 lists; up 15 since Aug 2024–Jul 2025.
85	University of Vermont & State Agricultural College Top agencies HHS (Department of Health and Human Services) DOI (Department of the Interior)	$1,023,200	0.2%	Rank history: not on the FY2021–FY2025 lists; up 107 since Aug 2024–Jul 2025.
86	DNA Labs International Inc Top agencies DOJ (Department of Justice) DHS (Department of Homeland Security)	$986,715	0.2%	Rank history: not on the FY2021 list, #81 in FY2022, #70 in FY2023, #64 in FY2024 and #69 in FY2025; down 9 since Aug 2024–Jul 2025.
87	Winergy LLC Top agencies VA (Department of Veterans Affairs) Army (Department of the Army) DHA (Defense Health Agency)	$983,778	0.2%	Rank history: not on the FY2021 list, #98 in FY2022, not on the FY2023–FY2024 lists and #81 in FY2025; up 2 since Aug 2024–Jul 2025.
88	Eurofins Lancaster Laboratories Environment Testing, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy)	$962,083	0.1%	Rank history: not on the FY2021–FY2025 lists; up 51 since Aug 2024–Jul 2025.
89	Enrec Enterprises Inc. Top agencies VA (Department of Veterans Affairs)	$959,923	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
90	Nevada System of Higher Education Top agencies DOI (Department of the Interior)	$949,896	0.1%	Rank history: not on the FY2021–FY2023 lists, #32 in FY2024 and #94 in FY2025; up 11 since Aug 2024–Jul 2025.
91	B. French Consulting GMBH Top agencies Army (Department of the Army)	$892,960	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
92	DCS Corporation Top agencies USAF (Department of the Air Force)	$889,918	0.1%	Rank history: not on the FY2021 list, #71 in FY2022, not on the FY2023 list, #96 in FY2024 and #98 in FY2025; up 23 since Aug 2024–Jul 2025.
93	The Ohio State University Top agencies HHS (Department of Health and Human Services)	$867,755	0.1%	Rank history: not on the FY2021–FY2024 lists and #100 in FY2025; new, not ranked in Aug 2024–Jul 2025.
94	SGS Canada Inc. Top agencies DOI (Department of the Interior)	$851,384	0.1%	Rank history: not on the FY2021–FY2023 lists, #80 in FY2024 and #43 in FY2025; down 47 since Aug 2024–Jul 2025.
95	Research Triangle Institute 2 awardees, including Research Triangle Institute International, LLC Top agencies DOI (Department of the Interior) DOJ (Department of Justice) VA (Department of Veterans Affairs)	$845,463	0.1%	Rank history: #76 in FY2021 and not on the FY2022–FY2025 lists; up 42 since Aug 2024–Jul 2025.
96	HGS Engineering Inc. Top agencies VA (Department of Veterans Affairs)	$838,797	0.1%	Rank history: not on the FY2021–FY2025 lists; up 59 since Aug 2024–Jul 2025.
97	TCS Services LLC Top agencies VA (Department of Veterans Affairs)	$812,728	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
98	AECOM Through AECOM Technical Services, Inc. Top agencies Army (Department of the Army)	$799,853	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
99	Virtra, Inc. Top agencies DHS (Department of Homeland Security)	$798,661	0.1%	Rank history: #60 in FY2021, #14 in FY2022 and not on the FY2023–FY2025 lists; down 20 since Aug 2024–Jul 2025.
100	NTS Technical Systems, Llc. 3 awardees Top agencies Navy (Department of the Navy) DMEA (Defense Microelectronics Activity) Army (Department of the Army)	$797,903	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.

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 $644 million 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. An awardee whose own actions mostly name no parent, and that no other company's actions name as their parent, rolls up its SAM.gov registration's chain of parent companies: it counts under the first company there that other companies' actions name as their parent, or under the parent most of a company's own actions name, whichever comes first; with neither, under the highest company in the chain with federal contracts of its own. Joint ventures stay companies of their own. 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.
• Period: the trailing 12 months end with the last month that ended at least 90 days ago, because the Department of Defense reports its contract actions to FPDS about 90 days late. The list is rebuilt each night.
• Rank changes compare with Aug 2024–Jul 2025. "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.
• Placeholder recipients FPDS uses when it names no company ("Miscellaneous Foreign Contractors" and the like) aren't ranked.

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