Top 100 Contractors in PSC 6665: Hazard-Detecting Instruments and Apparatus, Aug 2025–Jul 2026

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Leidos Holdings, Inc. 2 awardees, including Leidos, Inc. Top agencies DHS (Department of Homeland Security)	$130,588,911	27.6%	Rank history: #2 in FY2021, #8 in FY2022, #1 in FY2023, not on the FY2024 list and #2 in FY2025; new, not ranked in Aug 2024–Jul 2025.
2	Rapiscan Systems Inc. Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force)	$78,437,376	16.6%	Rank history: not on the FY2021–FY2023 lists, #3 in FY2024 and #1 in FY2025; down 1 since Aug 2024–Jul 2025.
3	Smiths Detection Inc. Top agencies DHS (Department of Homeland Security) Army (Department of the Army)	$57,715,296	12.2%	Rank history: not on the FY2021–FY2023 lists, #6 in FY2024 and #3 in FY2025; up 4 since Aug 2024–Jul 2025.
4	CHG Group Inc 2 awardees, including Chemring Sensors and Electronic Systems, Inc. Top agencies Army (Department of the Army)	$37,018,975	7.8%	Rank history: not on the FY2021–FY2022 lists, #7 in FY2023, not on the FY2024 list and #27 in FY2025; up 45 since Aug 2024–Jul 2025.
5	Astrophysics Inc. Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force)	$31,487,987	6.7%	Rank history: #4 in FY2021, #79 in FY2022, #17 in FY2023, #5 in FY2024 and #5 in FY2025; down 1 since Aug 2024–Jul 2025.
6	Teledyne Flir Unmanned Ground Systems Inc 2 awardees, including Teledyne Flir Defense, LLC Top agencies Army (Department of the Army)	$24,960,045	5.3%	Rank history: #59 in FY2021, #1 in FY2022, not on the FY2023 list, #15 in FY2024 and #4 in FY2025; up 7 since Aug 2024–Jul 2025.
7	Atlantic Diving Supply, Inc. Top agencies Army (Department of the Army) DOS (Department of State) USSOCOM (United States Special Operations Command)	$14,561,903	3.1%	Rank history: not on the FY2021–FY2023 lists, #37 in FY2024 and #17 in FY2025; up 16 since Aug 2024–Jul 2025.
8	L3Harris Technologies, Inc. Top agencies Navy (Department of the Navy)	$10,797,801	2.3%	Rank history: #7 in FY2021, not on the FY2022–FY2023 lists, #21 in FY2024 and #7 in FY2025; new, not ranked in Aug 2024–Jul 2025.
9	Luxfer Magtech Inc. Top agencies Army (Department of the Army)	$10,116,927	2.1%	Rank history: not on the FY2021–FY2023 lists, #9 in FY2024 and #18 in FY2025; up 7 since Aug 2024–Jul 2025.
10	Safeware Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$7,899,447	1.7%	Rank history: not on the FY2021–FY2022 lists, #84 in FY2023, not on the FY2024 list and #33 in FY2025; up 33 since Aug 2024–Jul 2025.
11	Cardinal Point Captains Inc. Top agencies Navy (Department of the Navy)	$7,154,397	1.5%	Rank history: not on the FY2021–FY2022 lists, #9 in FY2023, #7 in FY2024 and #10 in FY2025; down 3 since Aug 2024–Jul 2025.
12	Draeger Inc. Top agencies DLA (Defense Logistics Agency)	$5,825,975	1.2%	Rank history: not on the FY2021–FY2022 lists, #24 in FY2023, #35 in FY2024 and #13 in FY2025; new, not ranked in Aug 2024–Jul 2025.
13	W S Darley & Co Top agencies Army (Department of the Army)	$4,531,397	1.0%	Rank history: not on the FY2021–FY2024 lists and #8 in FY2025; up 177 since Aug 2024–Jul 2025.
14	MSA Safety Sales, LLC Top agencies Navy (Department of the Navy) DOL (Department of Labor)	$3,951,506	0.8%	Rank history: not on the FY2021–FY2023 lists, #13 in FY2024 and #16 in FY2025; unchanged since Aug 2024–Jul 2025.
15	MJL Enterprises, LLC Top agencies Army (Department of the Army)	$3,859,201	0.8%	Rank history: not on the FY2021–FY2024 lists and #32 in FY2025; up 12 since Aug 2024–Jul 2025.
16	Noble Supply & Logistics, LLC Top agencies Army (Department of the Army)	$3,311,159	0.7%	Rank history: not on the FY2021–FY2023 lists, #38 in FY2024 and #11 in FY2025; down 6 since Aug 2024–Jul 2025.
17	Bruker Scientific LLC Through Bruker Detection Corp Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$3,198,945	0.7%	Rank history: not on the FY2021–FY2024 lists and #12 in FY2025; down 6 since Aug 2024–Jul 2025.
18	Saint-Gobain Advanced Ceramics LLC Through Luxium Solutions, LLC Top agencies Navy (Department of the Navy)	$2,691,826	0.6%	Rank history: not on the FY2021–FY2023 lists, #25 in FY2024 and #15 in FY2025; up 13 since Aug 2024–Jul 2025.
19	J.g.w. (International) Ltd. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$2,072,511	0.4%	Rank history: not on the FY2021–FY2024 lists and #42 in FY2025; up 23 since Aug 2024–Jul 2025.
20	General Nucleonics, Inc. Top agencies Navy (Department of the Navy)	$1,771,268	0.4%	Rank history: #22 in FY2021, #14 in FY2022, not on the FY2023 list, #45 in FY2024 and #20 in FY2025; up 41 since Aug 2024–Jul 2025.
21	RTX Corporation 2 awardees, including Hamilton Sundstrand Corporation Top agencies Navy (Department of the Navy)	$1,536,484	0.3%	Rank history: #96 in FY2021, #23 in FY2022, not on the FY2023–FY2024 lists and #56 in FY2025; new, not ranked in Aug 2024–Jul 2025.
22	Thermo Fisher Scientific Inc. Through Thermo Eberline LLC Top agencies Navy (Department of the Navy)	$1,457,169	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
23	Phoenix Trading Inc. Top agencies DLA (Defense Logistics Agency)	$1,343,954	0.3%	Rank history: not on the FY2021–FY2024 lists and #19 in FY2025; down 4 since Aug 2024–Jul 2025.
24	Federal Resources Supply Company, LLC Top agencies DLA (Defense Logistics Agency)	$1,181,931	0.3%	Rank history: #12 in FY2021, #7 in FY2022, #14 in FY2023, #12 in FY2024 and #28 in FY2025; up 1 since Aug 2024–Jul 2025.
25	Detect Inc. Top agencies USAF (Department of the Air Force)	$1,172,934	0.2%	Rank history: not on the FY2021–FY2023 lists, #14 in FY2024 and #26 in FY2025; down 10 since Aug 2024–Jul 2025.
26	Areaka Trading & Logistics Company Top agencies Army (Department of the Army)	$940,800	0.2%	Rank history: not on the FY2021–FY2023 lists, #93 in FY2024 and #30 in FY2025; up 78 since Aug 2024–Jul 2025.
27	Sierra Peaks Corporation Top agencies USAF (Department of the Air Force)	$935,275	0.2%	Rank history: not on the FY2021–FY2024 lists and #31 in FY2025; new, not ranked in Aug 2024–Jul 2025.
28	Laco, Inc. Top agencies USAF (Department of the Air Force)	$772,601	0.2%	Rank history: not on the FY2021 list, #93 in FY2022, not on the FY2023 list, #33 in FY2024 and #41 in FY2025; up 1 since Aug 2024–Jul 2025.
29	Mountain Horse LLC Top agencies Army (Department of the Army) DHS (Department of Homeland Security)	$758,657	0.2%	Rank history: not on the FY2021–FY2022 lists, #19 in FY2023, #4 in FY2024 and #22 in FY2025; down 23 since Aug 2024–Jul 2025.
30	General Electric Company 2 awardees, including Reuter-Stokes, LLC Top agencies Navy (Department of the Navy) WHS (DOD Washington Headquarters Service)	$754,617	0.2%	Rank history: #24 in FY2021, #65 in FY2022, #16 in FY2023, #49 in FY2024 and #36 in FY2025; up 18 since Aug 2024–Jul 2025.
31	Mirion Technologies (Canberra), Inc. 2 awardees Top agencies Navy (Department of the Navy)	$705,936	0.1%	Rank history: not on the FY2021–FY2023 lists, #11 in FY2024 and #14 in FY2025; up 3 since Aug 2024–Jul 2025.
32	Government Scientific Source Inc. Top agencies DLA (Defense Logistics Agency)	$645,275	0.1%	Rank history: not on the FY2021–FY2022 lists, #25 in FY2023, #43 in FY2024 and not on the FY2025 list; up 119 since Aug 2024–Jul 2025.
33	Laurus Systems Inc. Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) Navy (Department of the Navy)	$527,665	0.1%	Rank history: #99 in FY2021, #47 in FY2022, #22 in FY2023, #42 in FY2024 and #43 in FY2025; up 5 since Aug 2024–Jul 2025.
34	D-2 Incorporated Top agencies DLA (Defense Logistics Agency)	$520,154	0.1%	Rank history: not on the FY2021 list, #40 in FY2022, #34 in FY2023, not on the FY2024 list and #46 in FY2025; up 7 since Aug 2024–Jul 2025.
35	Dreamfind, Inc. Top agencies DLA (Defense Logistics Agency)	$489,542	0.1%	Rank history: not on the FY2021–FY2022 lists, #86 in FY2023 and not on the FY2024–FY2025 lists; up 151 since Aug 2024–Jul 2025.
36	Tomahawk Sourcing LLC Top agencies DLA (Defense Logistics Agency)	$489,244	0.1%	Rank history: not on the FY2021 list, #32 in FY2022, #30 in FY2023, #23 in FY2024 and #25 in FY2025; down 12 since Aug 2024–Jul 2025.
37	Analytical Industries, Inc. Top agencies Navy (Department of the Navy)	$482,895	0.1%	Rank history: #37 in FY2021, #39 in FY2022, #31 in FY2023, #41 in FY2024 and #34 in FY2025; up 13 since Aug 2024–Jul 2025.
38	H3D Inc. Top agencies Navy (Department of the Navy)	$470,600	0.1%	Rank history: not on the FY2021–FY2023 lists, #10 in FY2024 and #74 in FY2025; up 41 since Aug 2024–Jul 2025.
39	Goldbelt, Incorporated Through Goldbelt Security LLC Top agencies DTRA (Defense Threat Reduction Agency)	$454,713	0.1%	Rank history: not on the FY2021–FY2024 lists and #35 in FY2025; new, not ranked in Aug 2024–Jul 2025.
40	Govparts LLC Top agencies DLA (Defense Logistics Agency)	$417,542	0.1%	Rank history: not on the FY2021–FY2024 lists and #37 in FY2025; down 5 since Aug 2024–Jul 2025.
41	Treadwell Corporation (Delaware) Top agencies DLA (Defense Logistics Agency)	$388,819	0.1%	Rank history: #63 in FY2021, #46 in FY2022, #44 in FY2023, #31 in FY2024 and not on the FY2025 list; up 157 since Aug 2024–Jul 2025.
42	Hopewell Designs, Inc. Top agencies Navy (Department of the Navy)	$370,080	0.1%	Rank history: #15 in FY2021, #20 in FY2022, #18 in FY2023, #17 in FY2024 and #29 in FY2025; down 12 since Aug 2024–Jul 2025.
43	Radiation Safety & Control Services, Inc. Top agencies Navy (Department of the Navy)	$311,964	0.1%	Rank history: not on the FY2021 list, #36 in FY2022, #32 in FY2023, #40 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
44	Lovell Government Services Inc. Top agencies VA (Department of Veterans Affairs)	$304,657	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
45	Larkos Packing and Distribution Inc. Top agencies DLA (Defense Logistics Agency)	$292,689	0.1%	Rank history: not on the FY2021 list, #98 in FY2022, #91 in FY2023, not on the FY2024 list and #88 in FY2025; up 46 since Aug 2024–Jul 2025.
46	STI Cems Services, LLC Top agencies DLA (Defense Logistics Agency)	$273,787	0.1%	Rank history: not on the FY2021–FY2024 lists and #48 in FY2025; up 1 since Aug 2024–Jul 2025.
47	Chase Supply, Inc. Top agencies DLA (Defense Logistics Agency)	$258,535	0.1%	Rank history: not on the FY2021–FY2023 lists, #51 in FY2024 and #66 in FY2025; up 10 since Aug 2024–Jul 2025.
48	United Central Industrial Supply Company, LLC Top agencies DOL (Department of Labor)	$249,026	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
49	Taylor Chemical Company Top agencies Navy (Department of the Navy)	$245,280	0.1%	Rank history: #97 in FY2021, #96 in FY2022, #60 in FY2023, #67 in FY2024 and #71 in FY2025; up 24 since Aug 2024–Jul 2025.
50	Kipper Tool Company Top agencies Army (Department of the Army)	$243,331	0.1%	Rank history: not on the FY2021–FY2024 lists and #52 in FY2025; new, not ranked in Aug 2024–Jul 2025.
51	Amentum Holdings, Inc. Through PAE Government Services, Inc. Top agencies DOJ (Department of Justice)	$230,000	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
52	BNC Corp. Top agencies OSD (Office of the Secretary of Defense)	$220,000	<0.1%	Rank history: #17 in FY2021, #72 in FY2022, #21 in FY2023, not on the FY2024 list and #23 in FY2025; down 31 since Aug 2024–Jul 2025.
53	Apex Pinnacle Corp Top agencies DLA (Defense Logistics Agency)	$208,673	<0.1%	Rank history: not on the FY2021–FY2022 lists, #29 in FY2023, #44 in FY2024 and #44 in FY2025; down 8 since Aug 2024–Jul 2025.
54	SAS R & D Services Inc. Top agencies DOS (Department of State) GSA (General Services Administration)	$199,323	<0.1%	Rank history: not on the FY2021–FY2024 lists and #62 in FY2025; new, not ranked in Aug 2024–Jul 2025.
55	B & H International LLC Top agencies DLA (Defense Logistics Agency)	$196,150	<0.1%	Rank history: #30 in FY2021, #18 in FY2022, #99 in FY2023, #18 in FY2024 and #54 in FY2025; up 1 since Aug 2024–Jul 2025.
56	Martin Military Inc. Top agencies DLA (Defense Logistics Agency)	$193,617	<0.1%	Rank history: #68 in FY2021, #83 in FY2022, not on the FY2023 list, #98 in FY2024 and #39 in FY2025; down 20 since Aug 2024–Jul 2025.
57	SZY Holdings, LLC Top agencies DLA (Defense Logistics Agency)	$190,803	<0.1%	Rank history: #38 in FY2021, #50 in FY2022, #27 in FY2023, #20 in FY2024 and #70 in FY2025; up 10 since Aug 2024–Jul 2025.
58	Stateline Solution LLC Top agencies DHS (Department of Homeland Security) VA (Department of Veterans Affairs)	$189,860	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
59	Heico Corp 2 awardees, including Research Electronics International, L.L.C. and Pioneer Industries, LLC Top agencies DOE (Department of Energy) DLA (Defense Logistics Agency)	$178,210	<0.1%	Rank history: not on the FY2021–FY2022 lists, #76 in FY2023, not on the FY2024 list and #80 in FY2025; new, not ranked in Aug 2024–Jul 2025.
60	Socal Air, Inc. Top agencies DLA (Defense Logistics Agency)	$177,660	<0.1%	Rank history: not on the FY2021–FY2023 lists, #59 in FY2024 and #95 in FY2025; up 39 since Aug 2024–Jul 2025.
61	Scitech Services Inc. Top agencies Army (Department of the Army)	$177,252	<0.1%	Rank history: not on the FY2021–FY2024 lists and #67 in FY2025; up 9 since Aug 2024–Jul 2025.
62	Aero International, LLC Top agencies DLA (Defense Logistics Agency)	$176,876	<0.1%	Rank history: not on the FY2021–FY2024 lists and #60 in FY2025; up 102 since Aug 2024–Jul 2025.
63	Divine Imaging Inc. Top agencies USDA (Department of Agriculture)	$170,250	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
64	Droneshield LLC Top agencies USAF (Department of the Air Force)	$169,920	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
65	Industrial Video & Control Co LLC Top agencies USAF (Department of the Air Force)	$168,950	<0.1%	Rank history: not on the FY2021–FY2024 lists and #64 in FY2025; new, not ranked in Aug 2024–Jul 2025.
66	Kwolyewm Services LLC Top agencies DOS (Department of State)	$159,178	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
67	Qasr Al Jamal Company Top agencies USAF (Department of the Air Force)	$153,650	<0.1%	Rank history: not on the FY2021–FY2024 lists and #69 in FY2025; new, not ranked in Aug 2024–Jul 2025.
68	Cuattro, LLC Top agencies DOJ (Department of Justice)	$151,769	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
69	Spectral Labs Incorporated Top agencies Navy (Department of the Navy)	$134,308	<0.1%	Rank history: #11 in FY2021, #12 in FY2022, #11 in FY2023, not on the FY2024 list and #40 in FY2025; down 30 since Aug 2024–Jul 2025.
70	Quicksilver Analytics Inc. Top agencies DLA (Defense Logistics Agency)	$134,087	<0.1%	Rank history: #26 in FY2021, #48 in FY2022 and not on the FY2023–FY2025 lists; up 53 since Aug 2024–Jul 2025.
71	Spaires Inc. Top agencies DLA (Defense Logistics Agency)	$133,335	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
72	All Safe Industries, Inc. Top agencies EPA (Environmental Protection Agency) Navy (Department of the Navy)	$132,229	<0.1%	Rank history: not on the FY2021 list, #94 in FY2022, #46 in FY2023, #61 in FY2024 and not on the FY2025 list; down 1 since Aug 2024–Jul 2025.
73	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency)	$125,993	<0.1%	Rank history: #25 in FY2021, #21 in FY2022, #43 in FY2023, #54 in FY2024 and #76 in FY2025; down 7 since Aug 2024–Jul 2025.
74	S I T Corporation Top agencies DLA (Defense Logistics Agency)	$117,099	<0.1%	Rank history: #23 in FY2021, #52 in FY2022, #82 in FY2023, #100 in FY2024 and #94 in FY2025; up 34 since Aug 2024–Jul 2025.
75	Rotunda Scientific Technologies LLC Top agencies USUHS (DOD Uniformed Services University of the Health Sciences)	$111,337	<0.1%	Rank history: #49 in FY2021, #31 in FY2022, #35 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
76	908 Devices Inc. Top agencies Navy (Department of the Navy)	$104,340	<0.1%	Rank history: #75 in FY2021 and not on the FY2022–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
77	Arhab LLC Top agencies DHS (Department of Homeland Security)	$96,000	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 33 since Aug 2024–Jul 2025.
78	Aantilia LLC Top agencies DHS (Department of Homeland Security)	$95,766	<0.1%	Rank history: not on the FY2021–FY2022 lists, #98 in FY2023 and not on the FY2024–FY2025 lists; up 40 since Aug 2024–Jul 2025.
79	Par Defense Industries, LLC Top agencies DLA (Defense Logistics Agency)	$88,207	<0.1%	Rank history: #52 in FY2021, #61 in FY2022, not on the FY2023 list, #88 in FY2024 and not on the FY2025 list; up 117 since Aug 2024–Jul 2025.
80	Linev Systems US Inc. Top agencies USDA (Department of Agriculture)	$85,511	<0.1%	Rank history: #64 in FY2021, not on the FY2022–FY2024 lists and #38 in FY2025; down 48 since Aug 2024–Jul 2025.
81	Vprime TECH Inc. Top agencies Navy (Department of the Navy)	$81,237	<0.1%	Rank history: not on the FY2021–FY2022 lists, #81 in FY2023, not on the FY2024 list and #92 in FY2025; new, not ranked in Aug 2024–Jul 2025.
82	3T Business Group LLC Top agencies DLA (Defense Logistics Agency)	$79,905	<0.1%	Rank history: not on the FY2021 list, #81 in FY2022, #48 in FY2023 and not on the FY2024–FY2025 lists; up 34 since Aug 2024–Jul 2025.
83	Assay Technology Inc. Top agencies Navy (Department of the Navy)	$79,804	<0.1%	Rank history: #77 in FY2021, #73 in FY2022, #85 in FY2023, #85 in FY2024 and #85 in FY2025; up 11 since Aug 2024–Jul 2025.
84	Evolv Technologies Inc Top agencies Smithsonian (Smithsonian Institution)	$78,224	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
85	Ceia USA Ltd Top agencies DOI (Department of the Interior) DOJ (Department of Justice) Army (Department of the Army)	$74,045	<0.1%	Rank history: not on the FY2021 list, #33 in FY2022, #69 in FY2023, #58 in FY2024 and not on the FY2025 list; down 20 since Aug 2024–Jul 2025.
86	Tarrant County Association for the Blind Top agencies DLA (Defense Logistics Agency)	$73,191	<0.1%	Rank history: #86 in FY2021, #44 in FY2022, #80 in FY2023 and not on the FY2024–FY2025 lists; up 14 since Aug 2024–Jul 2025.
87	Arkan Logistics LLC Top agencies DLA (Defense Logistics Agency)	$71,461	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
88	Chemdaq, Inc. Top agencies USDA (Department of Agriculture) VA (Department of Veterans Affairs)	$70,035	<0.1%	Rank history: #76 in FY2021, #99 in FY2022, #77 in FY2023, not on the FY2024 list and #97 in FY2025; up 15 since Aug 2024–Jul 2025.
89	Supplycore LLC Top agencies DLA (Defense Logistics Agency)	$66,527	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
90	Outdoor Venture Corp Through Ovc-Engineered Solutions LLC Top agencies DLA (Defense Logistics Agency)	$65,994	<0.1%	Rank history: not on the FY2021 list, #58 in FY2022, #54 in FY2023, #71 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
91	Anchortex Corp Top agencies USAF (Department of the Air Force)	$64,807	<0.1%	Rank history: not on the FY2021–FY2023 lists, #83 in FY2024 and #99 in FY2025; up 5 since Aug 2024–Jul 2025.
92	Janels Industries Inc. Top agencies DLA (Defense Logistics Agency)	$64,400	<0.1%	Rank history: not on the FY2021 list, #70 in FY2022, not on the FY2023–FY2024 lists and #100 in FY2025; new, not ranked in Aug 2024–Jul 2025.
93	Advanced Detection Technology, LLC Top agencies USAF (Department of the Air Force)	$63,639	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
94	B2B Solutions LLC Top agencies DLA (Defense Logistics Agency)	$58,424	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 50 since Aug 2024–Jul 2025.
95	Autoclear LLC Top agencies GSA (General Services Administration) DLA (Defense Logistics Agency)	$51,700	<0.1%	Rank history: not on the FY2021–FY2023 lists, #57 in FY2024 and not on the FY2025 list; up 7 since Aug 2024–Jul 2025.
96	Detectachem Inc. Top agencies USAF (Department of the Air Force)	$49,350	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
97	Arbill Industries Inc. Top agencies USAF (Department of the Air Force)	$48,531	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
98	Statz Corp Top agencies DLA (Defense Logistics Agency)	$48,245	<0.1%	Rank history: not on the FY2021–FY2023 lists, #79 in FY2024 and #84 in FY2025; down 17 since Aug 2024–Jul 2025.
99	GI Corporation Top agencies DLA (Defense Logistics Agency)	$45,125	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 62 since Aug 2024–Jul 2025.
100	DLA Aerospace LLC Top agencies DLA (Defense Logistics Agency)	$43,780	<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 $472 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.

Quick answers