Top 100 Contractors in NAICS 3324: Boiler, Tank, and Shipping Container Manufacturing, Aug 2025–Jul 2026

Name: Top 100 Contractors in NAICS 3324: Boiler, Tank, and Shipping Container Manufacturing, Aug 2025–Jul 2026
Creator: GovTribe
License: https://creativecommons.org/licenses/by/4.0/

Parent companies by net contract obligations Aug 1, 2025 – Jul 31, 2026 Code page on GovTribe

The latest 12 months. See the newest fiscal year's list: Top Contractors in NAICS 3324: Boiler, Tank, and Shipping Container Manufacturing, FY2025.

The top 10 won 89% of NAICS 3324 contract dollars from August 2025 through July 2026

Contract obligations: $2,552,048,726 Net of deobligations, by contracts coded NAICS 3324 or a code under it
Contractors: 616 Parent companies with an obligation
Largest contractor: Bechtel Corp $2.06 billion, 75.7% of obligations
Data as of: Nov 5, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Bechtel Corp Through Bechtel Plant Machinery, Inc. Top agencies Navy (Department of the Navy)	$2,063,453,436	75.7%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; unchanged since Aug 2024–Jul 2025.
2	Conco, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$183,662,462	6.7%	Rank history: #22 in FY2021, #4 in FY2022, #2 in FY2023, #2 in FY2024 and #2 in FY2025; unchanged since Aug 2024–Jul 2025.
3	Isometrics Inc. Top agencies Army (Department of the Army)	$36,071,430	1.3%	Rank history: #9 in FY2021, not on the FY2022–FY2023 lists, #10 in FY2024 and #5 in FY2025; up 3 since Aug 2024–Jul 2025.
4	Sea Box Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$35,843,529	1.3%	Rank history: #5 in FY2021, #6 in FY2022, #4 in FY2023, #4 in FY2024 and #12 in FY2025; up 7 since Aug 2024–Jul 2025.
5	BOH Environmental L.L.C. Top agencies DLA (Defense Logistics Agency)	$34,891,975	1.3%	Rank history: #3 in FY2021, #3 in FY2022, #3 in FY2023, #3 in FY2024 and #3 in FY2025; down 2 since Aug 2024–Jul 2025.
6	Brooks & Perkins, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$17,815,254	0.7%	Rank history: #39 in FY2021, #9 in FY2022, #9 in FY2023, #13 in FY2024 and #7 in FY2025; up 10 since Aug 2024–Jul 2025.
7	AAR Manufacturing, Inc. Top agencies DLA (Defense Logistics Agency) GSA (General Services Administration) DHS (Department of Homeland Security)	$12,341,068	0.5%	Rank history: #88 in FY2021, not on the FY2022–FY2023 lists, #7 in FY2024 and #4 in FY2025; down 3 since Aug 2024–Jul 2025.
8	Erie Engineered Products, Inc. Top agencies Navy (Department of the Navy)	$11,447,816	0.4%	Rank history: #12 in FY2021, not on the FY2022 list, #17 in FY2023, not on the FY2024 list and #25 in FY2025; up 46 since Aug 2024–Jul 2025.
9	Huntington Ingalls Industries, Inc. Through Huntington Ingalls Inc. Top agencies Navy (Department of the Navy)	$11,368,110	0.4%	Rank history: #7 in FY2021, #7 in FY2022, #8 in FY2023, #8 in FY2024 and #9 in FY2025; up 3 since Aug 2024–Jul 2025.
10	Atlantic Diving Supply, Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$9,991,187	0.4%	Rank history: not on the FY2021–FY2023 lists, #6 in FY2024 and #8 in FY2025; up 5 since Aug 2024–Jul 2025.
11	ECI Defense Group, Inc. 2 awardees Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$9,411,256	0.3%	Rank history: not on the FY2021–FY2023 lists, #19 in FY2024 and #13 in FY2025; up 12 since Aug 2024–Jul 2025.
12	Container Research Corp Top agencies Navy (Department of the Navy) Army (Department of the Army) DLA (Defense Logistics Agency)	$9,139,468	0.3%	Rank history: not on the FY2021–FY2022 lists, #10 in FY2023, #36 in FY2024 and #14 in FY2025; up 9 since Aug 2024–Jul 2025.
13	Aqua-Chem, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$7,885,711	0.3%	Rank history: #40 in FY2021, #21 in FY2022, #26 in FY2023, #27 in FY2024 and #21 in FY2025; up 14 since Aug 2024–Jul 2025.
14	Sharkcage Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force) Army (Department of the Army)	$7,727,038	0.3%	Rank history: #17 in FY2021, #10 in FY2022, #6 in FY2023, #11 in FY2024 and #10 in FY2025; down 6 since Aug 2024–Jul 2025.
15	Nexgen Composites LLC Top agencies DLA (Defense Logistics Agency)	$6,524,368	0.2%	Rank history: #16 in FY2021, #11 in FY2022, #29 in FY2023, #17 in FY2024 and #22 in FY2025; up 10 since Aug 2024–Jul 2025.
16	Contract Industrial Tooling Inc. Top agencies Navy (Department of the Navy)	$6,146,518	0.2%	Rank history: not on the FY2021–FY2022 lists, #27 in FY2023, #70 in FY2024 and #6 in FY2025; down 6 since Aug 2024–Jul 2025.
17	W&K Container, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$5,758,252	0.2%	Rank history: #8 in FY2021, #14 in FY2022, #13 in FY2023, #9 in FY2024 and #11 in FY2025; down 8 since Aug 2024–Jul 2025.
18	Intrepid Eagle Logistics, Inc. Top agencies DLA (Defense Logistics Agency)	$5,471,311	0.2%	Rank history: #25 in FY2021, #27 in FY2022, #44 in FY2023, #5 in FY2024 and #15 in FY2025; down 13 since Aug 2024–Jul 2025.
19	Fiba Technologies Inc. Top agencies NASA (National Aeronautics and Space Administration) Navy (Department of the Navy)	$3,438,500	0.1%	Rank history: not on the FY2021–FY2023 lists, #43 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
20	3M Company Through Scott Technologies, Inc. Top agencies DLA (Defense Logistics Agency)	$3,353,127	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
21	Pelican Products, Inc. 3 awardees, including Hardigg Industries, LLC and Peli Biothermal New Mexico, LLC Top agencies Navy (Department of the Navy) HHS (Department of Health and Human Services) DLA (Defense Logistics Agency)	$3,067,168	0.1%	Rank history: #42 in FY2021, #60 in FY2022, #35 in FY2023, not on the FY2024 list and #19 in FY2025; up 241 since Aug 2024–Jul 2025.
22	Greene Machine & Manufacturing Inc. Top agencies USAF (Department of the Air Force)	$2,338,076	0.1%	Rank history: #31 in FY2021, #42 in FY2022, #22 in FY2023, #22 in FY2024 and #27 in FY2025; up 2 since Aug 2024–Jul 2025.
23	Jgils, LLC Top agencies DLA (Defense Logistics Agency)	$2,269,283	0.1%	Rank history: #37 in FY2021, #64 in FY2022, #38 in FY2023, #30 in FY2024 and #16 in FY2025; down 4 since Aug 2024–Jul 2025.
24	Primary Flow Signal Inc. Top agencies Navy (Department of the Navy)	$2,079,989	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
25	Garrett Container Systems, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$2,052,228	0.1%	Rank history: #19 in FY2021, #24 in FY2022, #11 in FY2023, #25 in FY2024 and #33 in FY2025; up 6 since Aug 2024–Jul 2025.
26	The Albers Group LLC Through Advanced Packaging LLC Top agencies Navy (Department of the Navy) Army (Department of the Army)	$1,913,150	0.1%	Rank history: not on the FY2021–FY2024 lists and #18 in FY2025; up 2 since Aug 2024–Jul 2025.
27	Solutions Ftg, Inc. Top agencies DLA (Defense Logistics Agency)	$1,823,880	0.1%	Rank history: not on the FY2021 list, #22 in FY2022, #18 in FY2023, #15 in FY2024 and #17 in FY2025; down 7 since Aug 2024–Jul 2025.
28	Jaxon Engineering and Maintenance LLC Top agencies Army (Department of the Army)	$1,683,599	0.1%	Rank history: not on the FY2021–FY2024 lists and #28 in FY2025; new, not ranked in Aug 2024–Jul 2025.
29	Airgo Industries, Inc. Top agencies DLA (Defense Logistics Agency)	$1,675,299	0.1%	Rank history: not on the FY2021 list, #94 in FY2022, #57 in FY2023, #21 in FY2024 and #26 in FY2025; down 3 since Aug 2024–Jul 2025.
30	Total Concepts of Design Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$1,549,713	0.1%	Rank history: not on the FY2021–FY2025 lists; up 428 since Aug 2024–Jul 2025.
31	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,519,350	0.1%	Rank history: #24 in FY2021, not on the FY2022–FY2023 lists, #42 in FY2024 and #41 in FY2025; up 25 since Aug 2024–Jul 2025.
32	Heico Corp 3 awardees, including Pioneer Industries, LLC, Capewell Aerial Systems LLC and Air Cost Control US, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,447,934	0.1%	Rank history: not on the FY2021–FY2024 lists and #24 in FY2025; up 127 since Aug 2024–Jul 2025.
33	Boss Innovation & Marketing Inc. Top agencies DOJ (Department of Justice)	$1,413,484	0.1%	Rank history: #77 in FY2021, #53 in FY2022, #63 in FY2023, #62 in FY2024 and #63 in FY2025; up 31 since Aug 2024–Jul 2025.
34	Integrated Procurement Technologies Top agencies DLA (Defense Logistics Agency)	$1,409,000	0.1%	Rank history: #65 in FY2021, not on the FY2022–FY2024 lists and #30 in FY2025; new, not ranked in Aug 2024–Jul 2025.
35	H C Merchandisers, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,386,778	0.1%	Rank history: not on the FY2021–FY2025 lists; up 18 since Aug 2024–Jul 2025.
36	DEA Incorporated Top agencies Navy (Department of the Navy)	$1,234,294	<0.1%	Rank history: not on the FY2021 list, #46 in FY2022 and not on the FY2023–FY2025 lists; up 248 since Aug 2024–Jul 2025.
37	Terry Service, Inc. Top agencies Army (Department of the Army)	$1,214,029	<0.1%	Rank history: not on the FY2021–FY2024 lists and #32 in FY2025; up 11 since Aug 2024–Jul 2025.
38	Jag Components, LLC Top agencies DLA (Defense Logistics Agency)	$1,119,189	<0.1%	Rank history: not on the FY2021 list, #49 in FY2022, #15 in FY2023, #58 in FY2024 and #64 in FY2025; up 28 since Aug 2024–Jul 2025.
39	S I T Corporation Top agencies DLA (Defense Logistics Agency)	$1,070,730	<0.1%	Rank history: #35 in FY2021, not on the FY2022 list, #43 in FY2023, #41 in FY2024 and #92 in FY2025; up 60 since Aug 2024–Jul 2025.
40	Rgas LLC Top agencies DLA (Defense Logistics Agency)	$1,050,000	<0.1%	Rank history: not on the FY2021–FY2024 lists and #36 in FY2025; new, not ranked in Aug 2024–Jul 2025.
41	CP Industries Holdings Inc Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,048,175	<0.1%	Rank history: not on the FY2021–FY2024 lists and #60 in FY2025; new, not ranked in Aug 2024–Jul 2025.
42	AC Inc. Top agencies Navy (Department of the Navy)	$1,025,700	<0.1%	Rank history: not on the FY2021–FY2024 lists and #37 in FY2025; new, not ranked in Aug 2024–Jul 2025.
43	Central Metal Fabricators Inc. Top agencies Navy (Department of the Navy)	$1,021,055	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 110 since Aug 2024–Jul 2025.
44	Armor Metal Group Mason, Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$1,007,896	<0.1%	Rank history: not on the FY2021–FY2023 lists, #14 in FY2024 and #23 in FY2025; down 31 since Aug 2024–Jul 2025.
45	Argo Turboserve Corporation Top agencies DLA (Defense Logistics Agency)	$1,004,571	<0.1%	Rank history: not on the FY2021 list, #67 in FY2022, #36 in FY2023, #37 in FY2024 and #53 in FY2025; up 24 since Aug 2024–Jul 2025.
46	SAFRAN 3 awardees, including Avox Systems Inc., Safran Landing Systems Wheel & Brake Services LLC and Air Cruisers Company, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$864,335	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 276 since Aug 2024–Jul 2025.
47	Lanzen, Incorporated Top agencies Navy (Department of the Navy) Army (Department of the Army) DLA (Defense Logistics Agency)	$813,380	<0.1%	Rank history: not on the FY2021–FY2024 lists and #91 in FY2025; up 110 since Aug 2024–Jul 2025.
48	WEL-FAB Defense LLC Top agencies DLA (Defense Logistics Agency)	$781,763	<0.1%	Rank history: not on the FY2021–FY2022 lists, #62 in FY2023, #47 in FY2024 and #44 in FY2025; up 22 since Aug 2024–Jul 2025.
49	Ametek Inc. 2 awardees, including Ametek Ameron, LLC and Southern Aero Partners, Inc. Top agencies Navy (Department of the Navy)	$772,474	<0.1%	Rank history: not on the FY2021–FY2022 lists, #96 in FY2023 and not on the FY2024–FY2025 lists; up 132 since Aug 2024–Jul 2025.
50	Tactair Fluid Controls Inc 2 awardees, including Arkwin Industries, Inc. and Transdigm Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$769,970	<0.1%	Rank history: not on the FY2021–FY2024 lists and #42 in FY2025; up 235 since Aug 2024–Jul 2025.
51	Sogen Company, Inc. Top agencies DLA (Defense Logistics Agency)	$766,233	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 178 since Aug 2024–Jul 2025.
52	Eddy Pump Corporation Top agencies Navy (Department of the Navy)	$754,042	<0.1%	Rank history: not on the FY2021–FY2024 lists and #49 in FY2025; new, not ranked in Aug 2024–Jul 2025.
53	Supplycore LLC Top agencies USAF (Department of the Air Force)	$753,338	<0.1%	Rank history: not on the FY2021–FY2023 lists, #72 in FY2024 and #40 in FY2025; up 18 since Aug 2024–Jul 2025.
54	Renk Systems Corp Top agencies Navy (Department of the Navy)	$749,986	<0.1%	Rank history: not on the FY2021–FY2024 lists and #45 in FY2025; new, not ranked in Aug 2024–Jul 2025.
55	RPS Holdings, Inc. Through Rantec Power Systems Inc. Top agencies Navy (Department of the Navy)	$661,500	<0.1%	Rank history: not on the FY2021–FY2024 lists and #51 in FY2025; new, not ranked in Aug 2024–Jul 2025.
56	Thermodyne International, Ltd Top agencies Navy (Department of the Navy)	$654,654	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
57	Arhab LLC Top agencies Army (Department of the Army) DOI (Department of the Interior) DHS (Department of Homeland Security)	$645,298	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 262 since Aug 2024–Jul 2025.
58	Par Defense Industries, LLC Top agencies DLA (Defense Logistics Agency)	$642,784	<0.1%	Rank history: not on the FY2021–FY2024 lists and #83 in FY2025; up 24 since Aug 2024–Jul 2025.
59	GMS Industrial Supply, Inc. Through Sanitz Enterprises, Inc. Top agencies DLA (Defense Logistics Agency)	$629,833	<0.1%	Rank history: not on the FY2021–FY2024 lists and #78 in FY2025; new, not ranked in Aug 2024–Jul 2025.
60	Fluid Handling LLC 2 awardees, including Evoqua Water Technologies LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) DHS (Department of Homeland Security)	$610,895	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
61	Phoenix Trading Inc. Top agencies DLA (Defense Logistics Agency)	$570,861	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 86 since Aug 2024–Jul 2025.
62	Separator Spares & Equipment LLC Top agencies DLA (Defense Logistics Agency)	$563,120	<0.1%	Rank history: not on the FY2021–FY2023 lists, #95 in FY2024 and #88 in FY2025; up 59 since Aug 2024–Jul 2025.
63	Mountain Horse LLC Top agencies Army (Department of the Army)	$528,616	<0.1%	Rank history: not on the FY2021–FY2024 lists and #35 in FY2025; new, not ranked in Aug 2024–Jul 2025.
64	Vysix LLC Top agencies USAF (Department of the Air Force)	$523,080	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
65	Snap-On Incorporated Through Idsc Holdings LLC Top agencies USAF (Department of the Air Force)	$500,000	<0.1%	Rank history: not on the FY2021–FY2024 lists and #62 in FY2025; new, not ranked in Aug 2024–Jul 2025.
66	Pikes Peak Cargo Secure, Inc. Top agencies DLA (Defense Logistics Agency)	$498,452	<0.1%	Rank history: not on the FY2021 list, #90 in FY2022, #46 in FY2023, not on the FY2024 list and #69 in FY2025; up 11 since Aug 2024–Jul 2025.
67	Peterson Machinery Co Top agencies DOJ (Department of Justice)	$485,494	<0.1%	Rank history: not on the FY2021–FY2024 lists and #82 in FY2025; up 131 since Aug 2024–Jul 2025.
68	Fourinox, Inc. Top agencies Navy (Department of the Navy)	$482,760	<0.1%	Rank history: #28 in FY2021 and not on the FY2022–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
69	Newvac, LLC Top agencies DLA (Defense Logistics Agency)	$479,430	<0.1%	Rank history: not on the FY2021–FY2024 lists and #48 in FY2025; down 4 since Aug 2024–Jul 2025.
70	Crossair LLC Top agencies Army (Department of the Army)	$457,578	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
71	Brewfab, LLC Top agencies Navy (Department of the Navy)	$449,827	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
72	Northrop Grumman Systems Corporation Top agencies Navy (Department of the Navy)	$442,310	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
73	Core Engineered Solutions Inc. Top agencies DOJ (Department of Justice)	$438,777	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
74	Onodi Tool & Engineering Co Top agencies Army (Department of the Army)	$435,643	<0.1%	Rank history: not on the FY2021 list, #99 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
75	Triman Industries Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$433,813	<0.1%	Rank history: #76 in FY2021 and not on the FY2022–FY2025 lists; up 50 since Aug 2024–Jul 2025.
76	Fincantieri Marine Systems North America, Inc. Top agencies DLA (Defense Logistics Agency)	$426,837	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 386 since Aug 2024–Jul 2025.
77	Limco-Piedmont Inc. Through Limco Airepair Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$414,498	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
78	Certified Stainless Service Inc. Top agencies DOI (Department of the Interior)	$412,621	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
79	ABW Technologies, Inc. Top agencies Navy (Department of the Navy)	$400,481	<0.1%	Rank history: not on the FY2021–FY2024 lists and #79 in FY2025; new, not ranked in Aug 2024–Jul 2025.
80	Elite Aluminum Corp Top agencies USAF (Department of the Air Force)	$399,850	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
81	Highland Engineering, Inc. Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$393,096	<0.1%	Rank history: #66 in FY2021, #19 in FY2022, #65 in FY2023, #40 in FY2024 and not on the FY2025 list; down 36 since Aug 2024–Jul 2025.
82	Derbyshire Machine & Tool Co Top agencies DLA (Defense Logistics Agency)	$387,870	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 121 since Aug 2024–Jul 2025.
83	Houston Global Distribution LLC Top agencies USAF (Department of the Air Force)	$384,000	<0.1%	Rank history: not on the FY2021–FY2024 lists and #76 in FY2025; new, not ranked in Aug 2024–Jul 2025.
84	Top Office Pros Business Services Inc. Top agencies USDA (Department of Agriculture)	$379,850	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
85	Alfa Laval U.S. Holding Inc. 2 awardees, including Alfa Laval Inc. and Tranter Inc. Top agencies Navy (Department of the Navy)	$371,381	<0.1%	Rank history: not on the FY2021–FY2024 lists and #20 in FY2025; down 63 since Aug 2024–Jul 2025.
86	Delval Equipment Corporation Top agencies DOJ (Department of Justice) USAF (Department of the Air Force) Navy (Department of the Navy)	$359,857	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 345 since Aug 2024–Jul 2025.
87	HRD Aero Systems, Inc. Top agencies Navy (Department of the Navy)	$349,639	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
88	Valcorp Enterprises LLC Top agencies DLA (Defense Logistics Agency)	$347,210	<0.1%	Rank history: not on the FY2021–FY2023 lists, #74 in FY2024 and #94 in FY2025; down 4 since Aug 2024–Jul 2025.
89	Parts Life Inc. Through Deval Life Cycle Support LLC Top agencies DLA (Defense Logistics Agency)	$343,263	<0.1%	Rank history: not on the FY2021 list, #32 in FY2022, not on the FY2023–FY2024 lists and #38 in FY2025; new, not ranked in Aug 2024–Jul 2025.
90	Evoqua Water Technologies LLC Through Fluid Handling LLC Top agencies DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$324,436	<0.1%	Rank history: not on the FY2021–FY2023 lists, #63 in FY2024 and #39 in FY2025; down 50 since Aug 2024–Jul 2025.
91	Ameritech Die & Mold South, Inc. Top agencies DLA (Defense Logistics Agency)	$318,245	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
92	Prime Mover Holdings LLC Through Motor Services Hugo Stamp Inc. Top agencies Navy (Department of the Navy)	$294,550	<0.1%	Rank history: not on the FY2021–FY2024 lists and #100 in FY2025; new, not ranked in Aug 2024–Jul 2025.
93	Howland Pump & Supply Co Inc. Top agencies Army (Department of the Army)	$292,000	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
94	Ho-Ho-Kus, Inc. Top agencies DLA (Defense Logistics Agency)	$287,821	<0.1%	Rank history: not on the FY2021–FY2023 lists, #64 in FY2024 and not on the FY2025 list; up 30 since Aug 2024–Jul 2025.
95	Save Again.com Top agencies Navy (Department of the Navy) USDA (Department of Agriculture)	$287,340	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 347 since Aug 2024–Jul 2025.
96	Cryo-Express LLC Through Cryo Associates Inc. Top agencies USDA (Department of Agriculture)	$280,450	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
97	Energysolutions, LLC Through Energysolutions Services Inc. Top agencies Navy (Department of the Navy)	$280,436	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
98	Container Products Company, LLC Top agencies Navy (Department of the Navy)	$279,170	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 269 since Aug 2024–Jul 2025.
99	Govparts LLC Top agencies DLA (Defense Logistics Agency)	$278,329	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 20 since Aug 2024–Jul 2025.
100	FD Inc. Top agencies USAF (Department of the Air Force)	$276,817	<0.1%	Rank history: not on the FY2021–FY2022 lists, #81 in FY2023, #66 in FY2024 and not on the FY2025 list; down 19 since Aug 2024–Jul 2025.

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100 of 616 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 3324

Code	Net obligations	Largest contractor
33241 Power Boiler and Heat Exchanger Manufacturing	$2,116,571,695	Bechtel Corp
33243 Metal Can, Box, and Other Metal Container (Light Gauge) Manufacturing	$390,001,768	Conco, Inc.
33242 Metal Tank (Heavy Gauge) Manufacturing	$45,475,262	Isometrics Inc.

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 $2.72 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. 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

Who were the top 10 NAICS 3324 contractors in Aug 2025–Jul 2026?

1. Bechtel Corp ($2.06B), 2. Conco, Inc. ($184M), 3. Isometrics Inc. ($36.1M), 4. Sea Box Inc. ($35.8M), 5. BOH Environmental L.L.C. ($34.9M), 6. Brooks & Perkins, Inc. ($17.8M), 7. AAR Manufacturing, Inc. ($12.3M), 8. Erie Engineered Products, Inc. ($11.4M), 9. Huntington Ingalls Industries, Inc. ($11.4M), 10. Atlantic Diving Supply, Inc. ($9.99M).

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