Top 100 Contractors in NAICS 33242: Metal Tank (Heavy Gauge) Manufacturing, Aug 2025–Jul 2026

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Isometrics Inc. Top agencies Army (Department of the Army)	$36,071,430	61.1%	Rank history: #1 in FY2021, not on the FY2022–FY2023 lists, #1 in FY2024 and #1 in FY2025; unchanged since Aug 2024–Jul 2025.
2	Fiba Technologies Inc. Top agencies NASA (National Aeronautics and Space Administration) Navy (Department of the Navy)	$3,438,500	5.8%	Rank history: not on the FY2021–FY2023 lists, #6 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
3	3M Company Through Scott Technologies, Inc. Top agencies DLA (Defense Logistics Agency)	$3,353,127	5.7%	Rank history: not on the FY2021–FY2024 lists and #68 in FY2025; new, not ranked in Aug 2024–Jul 2025.
4	Rgas LLC Top agencies DLA (Defense Logistics Agency)	$1,050,000	1.8%	Rank history: not on the FY2021–FY2024 lists and #2 in FY2025; new, not ranked in Aug 2024–Jul 2025.
5	CP Industries Holdings Inc Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,048,175	1.8%	Rank history: not on the FY2021–FY2024 lists and #6 in FY2025; new, not ranked in Aug 2024–Jul 2025.
6	Atlantic Diving Supply, Inc. Top agencies DLA (Defense Logistics Agency)	$977,075	1.7%	Rank history: not on the FY2021–FY2023 lists, #50 in FY2024 and #4 in FY2025; up 5 since Aug 2024–Jul 2025.
7	Ametek Inc. Through Ametek Ameron, LLC Top agencies Navy (Department of the Navy)	$746,194	1.3%	Rank history: #31 in FY2021, #14 in FY2022, #14 in FY2023, #74 in FY2024 and #35 in FY2025; up 27 since Aug 2024–Jul 2025.
8	Integrated Procurement Technologies Top agencies DLA (Defense Logistics Agency)	$711,478	1.2%	Rank history: not on the FY2021–FY2024 lists and #3 in FY2025; new, not ranked in Aug 2024–Jul 2025.
9	SAFRAN 2 awardees, including Avox Systems Inc. and Air Cruisers Company, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$640,266	1.1%	Rank history: not on the FY2021–FY2024 lists and #65 in FY2025; up 65 since Aug 2024–Jul 2025.
10	Fourinox, Inc. Top agencies Navy (Department of the Navy)	$482,760	0.8%	Rank history: #4 in FY2021 and not on the FY2022–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
11	Crossair LLC Top agencies Army (Department of the Army)	$457,578	0.8%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
12	Brewfab, LLC Top agencies Navy (Department of the Navy)	$449,827	0.8%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
13	Core Engineered Solutions Inc. Top agencies DOJ (Department of Justice)	$438,777	0.7%	Rank history: not on the FY2021–FY2022 lists, #20 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
14	Certified Stainless Service Inc. Top agencies DOI (Department of the Interior)	$412,621	0.7%	Rank history: #27 in FY2021 and not on the FY2022–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
15	Houston Global Distribution LLC Top agencies USAF (Department of the Air Force)	$384,000	0.7%	Rank history: not on the FY2021–FY2024 lists and #11 in FY2025; new, not ranked in Aug 2024–Jul 2025.
16	HRD Aero Systems, Inc. Top agencies Navy (Department of the Navy)	$349,639	0.6%	Rank history: #24 in FY2021 and not on the FY2022–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
17	Valcorp Enterprises LLC Top agencies DLA (Defense Logistics Agency)	$347,210	0.6%	Rank history: not on the FY2021–FY2023 lists, #17 in FY2024 and #15 in FY2025; down 4 since Aug 2024–Jul 2025.
18	Save Again.com Top agencies Navy (Department of the Navy) USDA (Department of Agriculture)	$287,340	0.5%	Rank history: not on the FY2021–FY2024 lists and #41 in FY2025; new, not ranked in Aug 2024–Jul 2025.
19	Cryo-Express LLC Through Cryo Associates Inc. Top agencies USDA (Department of Agriculture)	$280,450	0.5%	Rank history: not on the FY2021–FY2022 lists, #30 in FY2023, #92 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
20	FD Inc. Top agencies USAF (Department of the Air Force)	$276,817	0.5%	Rank history: not on the FY2021 list, #18 in FY2022, #12 in FY2023, #14 in FY2024 and #18 in FY2025; down 8 since Aug 2024–Jul 2025.
21	Tekscan Inc. Top agencies Army (Department of the Army)	$248,892	0.4%	Rank history: not on the FY2021–FY2024 lists and #21 in FY2025; new, not ranked in Aug 2024–Jul 2025.
22	RTX Corporation 2 awardees, including Rockwell Collins, Inc. Top agencies Navy (Department of the Navy)	$244,447	0.4%	Rank history: #25 in FY2021 and not on the FY2022–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
23	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$227,913	0.4%	Rank history: not on the FY2021 list, #50 in FY2022, #78 in FY2023, #81 in FY2024 and #25 in FY2025; up 10 since Aug 2024–Jul 2025.
24	Haun Welding Supply Inc. Top agencies Army (Department of the Army)	$218,900	0.4%	Rank history: not on the FY2021 list, #27 in FY2022, not on the FY2023–FY2024 lists and #24 in FY2025; new, not ranked in Aug 2024–Jul 2025.
25	Environmental Tectonics Corp Top agencies DOT (Department of Transportation)	$218,372	0.4%	Rank history: #96 in FY2021, #13 in FY2022, #32 in FY2023, #30 in FY2024 and #22 in FY2025; up 1 since Aug 2024–Jul 2025.
26	R P M Supply Corporation Top agencies DLA (Defense Logistics Agency)	$193,665	0.3%	Rank history: #45 in FY2021, #7 in FY2022, #8 in FY2023, #11 in FY2024 and #37 in FY2025; up 15 since Aug 2024–Jul 2025.
27	Metadure Parts & Sales, Inc. Top agencies DLA (Defense Logistics Agency)	$190,100	0.3%	Rank history: #62 in FY2021, #47 in FY2022, #31 in FY2023, #49 in FY2024 and #36 in FY2025; up 15 since Aug 2024–Jul 2025.
28	Prism Design & Construction, LLC Top agencies DOI (Department of the Interior)	$179,683	0.3%	Rank history: not on the FY2021–FY2024 lists and #27 in FY2025; new, not ranked in Aug 2024–Jul 2025.
29	Statz Corp Top agencies DLA (Defense Logistics Agency)	$177,472	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
30	Arizona Waste Oil Service, Inc. Top agencies USAF (Department of the Air Force)	$153,171	0.3%	Rank history: not on the FY2021–FY2023 lists, #9 in FY2024 and #10 in FY2025; down 15 since Aug 2024–Jul 2025.
31	SRM Manufacturing, Inc. Top agencies DOI (Department of the Interior)	$152,870	0.3%	Rank history: #65 in FY2021, not on the FY2022 list, #87 in FY2023, not on the FY2024 list and #16 in FY2025; unchanged since Aug 2024–Jul 2025.
32	Energysolutions, LLC Through Energysolutions Services Inc. Top agencies Navy (Department of the Navy)	$151,456	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
33	ECI Defense Group, Inc. Top agencies USAF (Department of the Air Force)	$148,902	0.3%	Rank history: not on the FY2021 list, #35 in FY2022, not on the FY2023 list, #2 in FY2024 and #14 in FY2025; down 30 since Aug 2024–Jul 2025.
34	Oshkosh Corporation 2 awardees, including JLG Industries, Inc. and Oshkosh Defense LLC Top agencies DLA (Defense Logistics Agency)	$136,242	0.2%	Rank history: not on the FY2021 list, #30 in FY2022, #35 in FY2023, #43 in FY2024 and #28 in FY2025; up 85 since Aug 2024–Jul 2025.
35	Lee Industries, Inc. Top agencies Navy (Department of the Navy)	$128,192	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
36	Hunatek Federal Services, LLC Top agencies DHS (Department of Homeland Security)	$122,016	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
37	Diamond Weld Industries, Inc. Top agencies Navy (Department of the Navy)	$116,438	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
38	Heico Corp Through Pioneer Industries, LLC Top agencies DLA (Defense Logistics Agency)	$113,549	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
39	EHB Supply Top agencies Navy (Department of the Navy)	$112,093	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
40	Direct Line, Inc. Top agencies DLA (Defense Logistics Agency)	$111,847	0.2%	Rank history: not on the FY2021–FY2024 lists and #94 in FY2025; up 65 since Aug 2024–Jul 2025.
41	Dela Technology Corporation Top agencies Navy (Department of the Navy)	$108,025	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
42	Peacetree, Inc. Top agencies DOI (Department of the Interior)	$104,595	0.2%	Rank history: not on the FY2021 list, #22 in FY2022, not on the FY2023–FY2024 lists and #32 in FY2025; up 21 since Aug 2024–Jul 2025.
43	2Lyons Aerospace LLC Top agencies DLA (Defense Logistics Agency)	$96,372	0.2%	Rank history: not on the FY2021–FY2024 lists and #49 in FY2025; up 28 since Aug 2024–Jul 2025.
44	WV Communications Inc. Top agencies Navy (Department of the Navy)	$96,145	0.2%	Rank history: not on the FY2021–FY2023 lists, #33 in FY2024 and not on the FY2025 list; down 15 since Aug 2024–Jul 2025.
45	Lanzen, Incorporated Top agencies DLA (Defense Logistics Agency)	$89,733	0.2%	Rank history: #63 in FY2021, not on the FY2022 list, #54 in FY2023, not on the FY2024 list and #63 in FY2025; up 24 since Aug 2024–Jul 2025.
46	Seventh Genius LLC Top agencies USAF (Department of the Air Force)	$89,300	0.2%	Rank history: not on the FY2021 list, #80 in FY2022, #23 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
47	Superior Steel Products Inc. Top agencies USDA (Department of Agriculture)	$88,440	0.1%	Rank history: not on the FY2021–FY2022 lists, #26 in FY2023, #75 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
48	K5 Defense LLC Top agencies USAF (Department of the Air Force)	$86,700	0.1%	Rank history: not on the FY2021–FY2022 lists, #37 in FY2023, not on the FY2024 list and #40 in FY2025; new, not ranked in Aug 2024–Jul 2025.
49	General Pneumatics Inflation Systems, LLC Top agencies DLA (Defense Logistics Agency)	$86,484	0.1%	Rank history: not on the FY2021–FY2023 lists, #26 in FY2024 and #30 in FY2025; down 27 since Aug 2024–Jul 2025.
50	TECH Service Solutions LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$83,062	0.1%	Rank history: not on the FY2021 list, #75 in FY2022, #70 in FY2023, not on the FY2024 list and #31 in FY2025; down 2 since Aug 2024–Jul 2025.
51	Pure Fuel Solution, LLC Top agencies Navy (Department of the Navy)	$77,908	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
52	Steel Tank & Fabricating Corporation Top agencies DHS (Department of Homeland Security)	$74,530	0.1%	Rank history: #89 in FY2021, not on the FY2022–FY2024 lists and #44 in FY2025; new, not ranked in Aug 2024–Jul 2025.
53	Alum-Line Inc. Top agencies DOI (Department of the Interior) Army (Department of the Army)	$69,801	0.1%	Rank history: not on the FY2021–FY2023 lists, #41 in FY2024 and #55 in FY2025; new, not ranked in Aug 2024–Jul 2025.
54	Fluid Energy Controls Inc. Top agencies DLA (Defense Logistics Agency)	$68,107	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
55	Giga, Inc. Top agencies DOI (Department of the Interior)	$64,000	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
56	Native Instinct LLC Top agencies Navy (Department of the Navy)	$57,625	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
57	Integrated Aqua Systems, Inc. Top agencies Commerce (Department of Commerce) DOI (Department of the Interior)	$57,469	0.1%	Rank history: not on the FY2021–FY2024 lists and #64 in FY2025; up 28 since Aug 2024–Jul 2025.
58	Oceans Design Inc. Top agencies Commerce (Department of Commerce)	$56,880	0.1%	Rank history: not on the FY2021–FY2024 lists and #50 in FY2025; new, not ranked in Aug 2024–Jul 2025.
59	Airborne Outfitters LLC Top agencies DLA (Defense Logistics Agency)	$51,098	0.1%	Rank history: not on the FY2021–FY2024 lists and #52 in FY2025; new, not ranked in Aug 2024–Jul 2025.
60	Mooweep LLC Top agencies DOI (Department of the Interior)	$49,800	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
61	A.M.S. Network LLC Top agencies Navy (Department of the Navy)	$48,327	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
62	Aantilia LLC Top agencies Army (Department of the Army)	$48,042	0.1%	Rank history: #60 in FY2021, #53 in FY2022, not on the FY2023–FY2024 lists and #39 in FY2025; up 5 since Aug 2024–Jul 2025.
63	Xenturis LLC Top agencies DOI (Department of the Interior)	$45,600	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
64	EOS Inc. Through Sidecar Enterprises Inc. Top agencies DLA (Defense Logistics Agency)	$44,100	0.1%	Rank history: #97 in FY2021 and not on the FY2022–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
65	Auburn Mechanical, Inc. Top agencies Navy (Department of the Navy)	$42,240	0.1%	Rank history: not on the FY2021–FY2024 lists and #62 in FY2025; new, not ranked in Aug 2024–Jul 2025.
66	Soncoast Procurement, LLC Top agencies DLA (Defense Logistics Agency)	$40,628	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
67	Perfected Solutions LLC Top agencies USAF (Department of the Air Force)	$37,000	0.1%	Rank history: not on the FY2021–FY2024 lists and #46 in FY2025; up 12 since Aug 2024–Jul 2025.
68	Blue Cord Logistic Strategies Inc. Top agencies DLA (Defense Logistics Agency)	$33,198	0.1%	Rank history: not on the FY2021–FY2023 lists, #45 in FY2024 and #71 in FY2025; down 17 since Aug 2024–Jul 2025.
69	B.e. Peterson, Inc. Top agencies Navy (Department of the Navy)	$28,821	<0.1%	Rank history: not on the FY2021 list, #4 in FY2022, #2 in FY2023, #4 in FY2024 and not on the FY2025 list; down 64 since Aug 2024–Jul 2025.
70	Ruta Supplies Inc. Top agencies DLA (Defense Logistics Agency)	$28,379	<0.1%	Rank history: not on the FY2021 list, #36 in FY2022, #98 in FY2023, not on the FY2024 list and #48 in FY2025; down 23 since Aug 2024–Jul 2025.
71	Global Logistics & Services W.L.L. Top agencies USAF (Department of the Air Force)	$27,239	<0.1%	Rank history: not on the FY2021–FY2024 lists and #29 in FY2025; down 41 since Aug 2024–Jul 2025.
72	Cryofab Inc. Top agencies Navy (Department of the Navy)	$26,909	<0.1%	Rank history: #50 in FY2021, #19 in FY2022, not on the FY2023–FY2024 lists and #93 in FY2025; new, not ranked in Aug 2024–Jul 2025.
73	Polytech Defense Spares LLC Top agencies DLA (Defense Logistics Agency)	$25,710	<0.1%	Rank history: not on the FY2021–FY2024 lists and #72 in FY2025; new, not ranked in Aug 2024–Jul 2025.
74	Painter Tool Incorporated Top agencies Navy (Department of the Navy)	$24,990	<0.1%	Rank history: not on the FY2021–FY2024 lists and #53 in FY2025; down 18 since Aug 2024–Jul 2025.
75	Ross Manufacturing & Repair, LLC Top agencies DOI (Department of the Interior)	$24,900	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
76	Lourdes Industries, Inc. Top agencies Navy (Department of the Navy)	$24,496	<0.1%	Rank history: not on the FY2021–FY2024 lists and #80 in FY2025; up 11 since Aug 2024–Jul 2025.
77	Memco Inc. Top agencies Navy (Department of the Navy)	$24,254	<0.1%	Rank history: not on the FY2021–FY2024 lists and #76 in FY2025; new, not ranked in Aug 2024–Jul 2025.
78	Roberts Oxygen Company Inc. Top agencies DOT (Department of Transportation)	$24,172	<0.1%	Rank history: not on the FY2021–FY2023 lists, #68 in FY2024 and not on the FY2025 list; down 2 since Aug 2024–Jul 2025.
79	Alkali Scientific, LLC Top agencies NASA (National Aeronautics and Space Administration)	$23,390	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
80	Veterans Plus LLC Top agencies DLA (Defense Logistics Agency)	$23,083	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
81	Janels Industries Inc. Top agencies DLA (Defense Logistics Agency)	$22,967	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
82	B & H International LLC Top agencies SSA (Social Security Administration)	$22,796	<0.1%	Rank history: not on the FY2021–FY2024 lists and #78 in FY2025; new, not ranked in Aug 2024–Jul 2025.
83	Alliance Network Integrators LLC Top agencies DHS (Department of Homeland Security)	$18,739	<0.1%	Rank history: not on the FY2021–FY2024 lists and #82 in FY2025; new, not ranked in Aug 2024–Jul 2025.
84	The Black Barons Group LLC Top agencies DHS (Department of Homeland Security)	$18,471	<0.1%	Rank history: not on the FY2021–FY2024 lists and #83 in FY2025; new, not ranked in Aug 2024–Jul 2025.
85	Linde Inc. Through Linde Gas & Equipment Inc. Top agencies HHS (Department of Health and Human Services)	$18,459	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
86	Tank Maintenance Solutions, Inc. Top agencies DOI (Department of the Interior)	$18,250	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
87	Drew Marine USA Inc. Top agencies DHS (Department of Homeland Security)	$18,140	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
88	GFS Supply & Services Company, Inc. Top agencies Navy (Department of the Navy)	$17,399	<0.1%	Rank history: not on the FY2021 list, #69 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
89	ITL LLC Top agencies DLA (Defense Logistics Agency)	$17,218	<0.1%	Rank history: not on the FY2021–FY2024 lists and #79 in FY2025; up 13 since Aug 2024–Jul 2025.
90	H 3 Services LLC Top agencies Army (Department of the Army)	$17,200	<0.1%	Rank history: not on the FY2021–FY2024 lists and #34 in FY2025; down 54 since Aug 2024–Jul 2025.
91	Jgils, LLC Top agencies DLA (Defense Logistics Agency)	$15,371	<0.1%	Rank history: not on the FY2021 list, #72 in FY2022, not on the FY2023 list, #98 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
92	Kijero, LLC Top agencies Navy (Department of the Navy)	$14,275	<0.1%	Rank history: not on the FY2021–FY2023 lists, #38 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
93	Airborne Supply Inc. Top agencies DLA (Defense Logistics Agency)	$13,991	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
94	Govparts LLC Top agencies DLA (Defense Logistics Agency)	$13,975	<0.1%	Rank history: not on the FY2021–FY2024 lists and #84 in FY2025; down 3 since Aug 2024–Jul 2025.
95	Badger Truck and Automotive Group, Inc. Top agencies DLA (Defense Logistics Agency)	$12,936	<0.1%	Rank history: not on the FY2021–FY2023 lists, #99 in FY2024 and #91 in FY2025; up 9 since Aug 2024–Jul 2025.
96	J.G.B. Enterprises Inc. Through Echelon Supply and Service, Inc. Top agencies DLA (Defense Logistics Agency)	$12,500	<0.1%	Rank history: not on the FY2021–FY2024 lists and #33 in FY2025; down 64 since Aug 2024–Jul 2025.
97	Larkos Packing and Distribution Inc. Top agencies DLA (Defense Logistics Agency)	$11,856	<0.1%	Rank history: not on the FY2021–FY2022 lists, #62 in FY2023 and not on the FY2024–FY2025 lists; up 32 since Aug 2024–Jul 2025.
98	Enterprise Technology Solutions, Inc. Top agencies Army (Department of the Army)	$11,167	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
99	Scott Industrial Systems, Inc. Top agencies DLA (Defense Logistics Agency)	$10,241	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
100	Hydro-Fitting Manufacturing Corporation Top agencies DLA (Defense Logistics Agency)	$10,000	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.

Rankings for the codes under NAICS 33242

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 $59.1 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