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

Name: Top 100 Contractors in NAICS 3324: Boiler, Tank, and Shipping Container Manufacturing, Jul 2025–Jun 2026
Creator: GovTribe

Parent companies by net contract obligations Jul 1, 2025 – Jun 30, 2026 Code page on GovTribe

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

Contract obligations: $2,522,663,658 Net of deobligations, by contracts coded NAICS 3324 or a code under it
Contractors: 647 Parent companies with an obligation
Largest contractor: Bechtel Corp $2.06 billion, 76.5% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV

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	76.5%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; unchanged since Jul 2024–Jun 2025.
2	Conco, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$183,093,327	6.8%	Rank history: #22 in FY2021, #4 in FY2022, #2 in FY2023, #2 in FY2024 and #2 in FY2025; unchanged since Jul 2024–Jun 2025.
3	Isometrics Inc. Top agencies Army (Department of the Army)	$39,159,112	1.5%	Rank history: #9 in FY2021, not on the FY2022–FY2023 lists, #10 in FY2024 and #5 in FY2025; up 2 since Jul 2024–Jun 2025.
4	BOH Environmental L.L.C. Top agencies DLA (Defense Logistics Agency)	$33,407,166	1.2%	Rank history: #3 in FY2021, #3 in FY2022, #3 in FY2023, #3 in FY2024 and #3 in FY2025; down 1 since Jul 2024–Jun 2025.
5	Brooks & Perkins, Inc. Top agencies Navy (Department of the Navy)	$16,029,591	0.6%	Rank history: #39 in FY2021, #9 in FY2022, #9 in FY2023, #13 in FY2024 and #7 in FY2025; up 11 since Jul 2024–Jun 2025.
6	AAR Manufacturing, Inc. Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$12,307,924	0.5%	Rank history: #88 in FY2021, not on the FY2022–FY2023 lists, #7 in FY2024 and #4 in FY2025; down 2 since Jul 2024–Jun 2025.
7	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 #24 in FY2025; up 46 since Jul 2024–Jun 2025.
8	Sea Box Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$10,121,017	0.4%	Rank history: #5 in FY2021, #6 in FY2022, #4 in FY2023, #4 in FY2024 and #12 in FY2025; unchanged since Jul 2024–Jun 2025.
9	Atlantic Diving Supply, Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$10,059,858	0.4%	Rank history: not on the FY2021–FY2023 lists, #6 in FY2024 and #8 in FY2025; unchanged since Jul 2024–Jun 2025.
10	Huntington Ingalls Industries, Inc. Through Huntington Ingalls Inc. Top agencies Navy (Department of the Navy)	$9,158,110	0.3%	Rank history: #7 in FY2021, #7 in FY2022, #8 in FY2023, #8 in FY2024 and #9 in FY2025; up 1 since Jul 2024–Jun 2025.
11	Container Research Corp Top agencies Navy (Department of the Navy) Army (Department of the Army) DLA (Defense Logistics Agency)	$9,149,995	0.3%	Rank history: not on the FY2021–FY2022 lists, #10 in FY2023, #36 in FY2024 and #14 in FY2025; up 10 since Jul 2024–Jun 2025.
12	ECI Defense Group, Inc. 2 awardees Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$8,230,492	0.3%	Rank history: not on the FY2021–FY2023 lists, #19 in FY2024 and #13 in FY2025; up 15 since Jul 2024–Jun 2025.
13	Aqua-Chem, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$7,780,561	0.3%	Rank history: #40 in FY2021, #21 in FY2022, #26 in FY2023, #27 in FY2024 and #20 in FY2025; up 16 since Jul 2024–Jun 2025.
14	Sharkcage Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$7,260,418	0.3%	Rank history: #17 in FY2021, #10 in FY2022, #6 in FY2023, #11 in FY2024 and #10 in FY2025; down 4 since Jul 2024–Jun 2025.
15	Nexgen Composites LLC Top agencies DLA (Defense Logistics Agency)	$6,661,898	0.2%	Rank history: #16 in FY2021, #11 in FY2022, #29 in FY2023, #17 in FY2024 and #21 in FY2025; up 9 since Jul 2024–Jun 2025.
16	W&K Container, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$6,130,753	0.2%	Rank history: #8 in FY2021, #14 in FY2022, #13 in FY2023, #9 in FY2024 and #11 in FY2025; down 4 since Jul 2024–Jun 2025.
17	Intrepid Eagle Logistics, Inc. Top agencies DLA (Defense Logistics Agency)	$5,536,056	0.2%	Rank history: #25 in FY2021, #27 in FY2022, #44 in FY2023, #5 in FY2024 and #15 in FY2025; down 11 since Jul 2024–Jun 2025.
18	Contract Industrial Tooling Inc. Top agencies Navy (Department of the Navy)	$5,514,261	0.2%	Rank history: not on the FY2021–FY2022 lists, #27 in FY2023, #70 in FY2024 and #6 in FY2025; down 5 since Jul 2024–Jun 2025.
19	The Albers Group LLC Through Advanced Packaging LLC Top agencies Navy (Department of the Navy) Army (Department of the Army)	$3,868,010	0.1%	Rank history: not on the FY2021–FY2024 lists and #18 in FY2025; new, not ranked in Jul 2024–Jun 2025.
20	Scott Technologies, Inc. Top agencies DLA (Defense Logistics Agency)	$3,353,127	0.1%	Rank history: not on the FY2021–FY2025 lists; up 300 since Jul 2024–Jun 2025.
21	Jgils, LLC Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$2,382,141	0.1%	Rank history: #37 in FY2021, #64 in FY2022, #38 in FY2023, #30 in FY2024 and #16 in FY2025; down 2 since Jul 2024–Jun 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 #26 in FY2025; up 1 since Jul 2024–Jun 2025.
23	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 Jul 2024–Jun 2025.
24	Hardigg Industries, LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) Army (Department of the Army)	$2,022,243	0.1%	Rank history: not on the FY2021–FY2023 lists, #45 in FY2024 and #22 in FY2025; up 6 since Jul 2024–Jun 2025.
25	Garrett Container Systems, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,918,702	0.1%	Rank history: #19 in FY2021, #24 in FY2022, #11 in FY2023, #25 in FY2024 and #33 in FY2025; up 3 since Jul 2024–Jun 2025.
26	Solutions Ftg, Inc. Top agencies DLA (Defense Logistics Agency)	$1,808,358	0.1%	Rank history: not on the FY2021 list, #22 in FY2022, #18 in FY2023, #15 in FY2024 and #17 in FY2025; down 6 since Jul 2024–Jun 2025.
27	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 #27 in FY2025; new, not ranked in Jul 2024–Jun 2025.
28	Airgo Industries, Inc. Top agencies DLA (Defense Logistics Agency)	$1,548,997	0.1%	Rank history: not on the FY2021 list, #94 in FY2022, #57 in FY2023, #21 in FY2024 and #25 in FY2025; down 3 since Jul 2024–Jun 2025.
29	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,535,016	0.1%	Rank history: #24 in FY2021, not on the FY2022–FY2023 lists, #42 in FY2024 and #41 in FY2025; up 26 since Jul 2024–Jun 2025.
30	Total Concepts of Design Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$1,519,177	0.1%	Rank history: not on the FY2021–FY2025 lists; up 422 since Jul 2024–Jun 2025.
31	DEA Incorporated Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,280,767	<0.1%	Rank history: not on the FY2021 list, #46 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
32	Jag Components, LLC Top agencies DLA (Defense Logistics Agency)	$1,253,189	<0.1%	Rank history: not on the FY2021 list, #49 in FY2022, #15 in FY2023, #58 in FY2024 and #66 in FY2025; up 52 since Jul 2024–Jun 2025.
33	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 Jul 2024–Jun 2025.
34	Boss Innovation & Marketing Inc. Top agencies DOJ (Department of Justice)	$1,160,695	<0.1%	Rank history: #77 in FY2021, #53 in FY2022, #63 in FY2023, #62 in FY2024 and #65 in FY2025; up 32 since Jul 2024–Jun 2025.
35	Integrated Procurement Technologies Top agencies DLA (Defense Logistics Agency)	$1,140,045	<0.1%	Rank history: not on the FY2021–FY2023 lists, #49 in FY2024 and #29 in FY2025; up 7 since Jul 2024–Jun 2025.
36	Argo Turboserve Corporation Top agencies DLA (Defense Logistics Agency)	$1,112,792	<0.1%	Rank history: not on the FY2021 list, #67 in FY2022, #36 in FY2023, #37 in FY2024 and #54 in FY2025; up 14 since Jul 2024–Jun 2025.
37	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 Jul 2024–Jun 2025.
38	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 #61 in FY2025; new, not ranked in Jul 2024–Jun 2025.
39	H C Merchandisers, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,047,654	<0.1%	Rank history: not on the FY2021–FY2024 lists and #53 in FY2025; up 12 since Jul 2024–Jun 2025.
40	S I T Corporation Top agencies DLA (Defense Logistics Agency)	$1,044,703	<0.1%	Rank history: #35 in FY2021, not on the FY2022 list, #43 in FY2023, #41 in FY2024 and #94 in FY2025; up 52 since Jul 2024–Jun 2025.
41	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 Jul 2024–Jun 2025.
42	Armor Metal Group Mason, Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$1,012,746	<0.1%	Rank history: not on the FY2021–FY2023 lists, #14 in FY2024 and #23 in FY2025; down 28 since Jul 2024–Jun 2025.
43	Pioneer Industries, LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$922,914	<0.1%	Rank history: #60 in FY2021, #52 in FY2022, not on the FY2023 list, #44 in FY2024 and #63 in FY2025; down 5 since Jul 2024–Jun 2025.
44	Fluid Handling LLC 2 awardees Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$890,618	<0.1%	Rank history: not on the FY2021–FY2023 lists, #63 in FY2024 and #39 in FY2025; up 3 since Jul 2024–Jun 2025.
45	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)	$887,879	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 445 since Jul 2024–Jun 2025.
46	Supplycore LLC Top agencies USAF (Department of the Air Force)	$826,638	<0.1%	Rank history: not on the FY2021–FY2023 lists, #72 in FY2024 and #40 in FY2025; up 31 since Jul 2024–Jun 2025.
47	Ametek Inc. 2 awardees, including Ametek Ameron, LLC and Southern Aero Partners, Inc. Top agencies Navy (Department of the Navy)	$790,774	<0.1%	Rank history: not on the FY2021–FY2022 lists, #96 in FY2023 and not on the FY2024–FY2025 lists; up 135 since Jul 2024–Jun 2025.
48	Sanitz Enterprises, Inc. Top agencies DLA (Defense Logistics Agency)	$787,291	<0.1%	Rank history: not on the FY2021 list, #86 in FY2022, not on the FY2023–FY2024 lists and #80 in FY2025; up 167 since Jul 2024–Jun 2025.
49	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 16 since Jul 2024–Jun 2025.
50	Scioteq LLC 2 awardees, including Arkwin Industries, Inc. and Transdigm Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$767,395	<0.1%	Rank history: not on the FY2021–FY2024 lists and #42 in FY2025; up 235 since Jul 2024–Jun 2025.
51	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 Jul 2024–Jun 2025.
52	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 Jul 2024–Jun 2025.
53	PPD Development LP Through Thermo Fisher Scientific (Asheville) LLC Top agencies Navy (Department of the Navy)	$747,855	<0.1%	Rank history: not on the FY2021–FY2024 lists and #46 in FY2025; new, not ranked in Jul 2024–Jun 2025.
54	Capewell Aerial Systems LLC Top agencies DLA (Defense Logistics Agency)	$742,500	<0.1%	Rank history: not on the FY2021 list, #25 in FY2022, #21 in FY2023, #31 in FY2024 and #31 in FY2025; down 18 since Jul 2024–Jun 2025.
55	Phoenix Trading Inc. Top agencies DLA (Defense Logistics Agency)	$705,232	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 250 since Jul 2024–Jun 2025.
56	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 Jul 2024–Jun 2025.
57	Par Defense Industries, LLC Top agencies DLA (Defense Logistics Agency)	$642,784	<0.1%	Rank history: not on the FY2021–FY2024 lists and #85 in FY2025; up 23 since Jul 2024–Jun 2025.
58	Peli Biothermal New Mexico, LLC Top agencies HHS (Department of Health and Human Services)	$625,913	<0.1%	Rank history: not on the FY2021–FY2022 lists, #51 in FY2023, not on the FY2024 list and #52 in FY2025; up 113 since Jul 2024–Jun 2025.
59	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 #90 in FY2025; up 53 since Jul 2024–Jun 2025.
60	Peterson Machinery Co Top agencies DOJ (Department of Justice)	$558,360	<0.1%	Rank history: not on the FY2021–FY2024 lists and #84 in FY2025; up 273 since Jul 2024–Jun 2025.
61	Sogen Company, Inc. Top agencies DLA (Defense Logistics Agency)	$541,635	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 133 since Jul 2024–Jun 2025.
62	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 Jul 2024–Jun 2025.
63	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 Jul 2024–Jun 2025.
64	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 Jul 2024–Jun 2025.
65	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 2 since Jul 2024–Jun 2025.
66	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 Jul 2024–Jun 2025.
67	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 Jul 2024–Jun 2025.
68	Triman Industries Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$442,761	<0.1%	Rank history: #76 in FY2021 and not on the FY2022–FY2025 lists; up 80 since Jul 2024–Jun 2025.
69	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 Jul 2024–Jun 2025.
70	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 Jul 2024–Jun 2025.
71	Fiba Technologies Inc. Top agencies Navy (Department of the Navy)	$430,500	<0.1%	Rank history: not on the FY2021–FY2023 lists, #43 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
72	Marinette Marine Corporation Through 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 384 since Jul 2024–Jun 2025.
73	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 Jul 2024–Jun 2025.
74	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 Jul 2024–Jun 2025.
75	ABW Technologies, Inc. Top agencies Navy (Department of the Navy)	$400,481	<0.1%	Rank history: not on the FY2021–FY2024 lists and #81 in FY2025; new, not ranked in Jul 2024–Jun 2025.
76	Deval Life Cycle Support LLC Top agencies DLA (Defense Logistics Agency)	$398,164	<0.1%	Rank history: not on the FY2021–FY2022 lists, #39 in FY2023, #38 in FY2024 and #38 in FY2025; down 43 since Jul 2024–Jun 2025.
77	Derbyshire Machine & Tool Co Top agencies DLA (Defense Logistics Agency)	$387,870	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 115 since Jul 2024–Jun 2025.
78	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 #78 in FY2025; new, not ranked in Jul 2024–Jun 2025.
79	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 Jul 2024–Jun 2025.
80	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 351 since Jul 2024–Jun 2025.
81	Leonardo S.p.A. 3 awardees, including Laurel Technologies Partnership, DRS Naval Power Systems Inc. and Pivotal Power Inc. Top agencies Navy (Department of the Navy)	$352,155	<0.1%	Rank history: not on the FY2021–FY2024 lists and #56 in FY2025; up 314 since Jul 2024–Jun 2025.
82	FSR Consulting LLC Top agencies Navy (Department of the Navy)	$349,998	<0.1%	Rank history: not on the FY2021–FY2024 lists and #88 in FY2025; new, not ranked in Jul 2024–Jun 2025.
83	MTM Business Systems Top agencies USAF (Department of the Air Force)	$349,995	<0.1%	Rank history: not on the FY2021–FY2024 lists and #89 in FY2025; new, not ranked in Jul 2024–Jun 2025.
84	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 Jul 2024–Jun 2025.
85	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 #96 in FY2025; down 16 since Jul 2024–Jun 2025.
86	Lanzen, Incorporated Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$336,320	<0.1%	Rank history: not on the FY2021–FY2024 lists and #93 in FY2025; up 61 since Jul 2024–Jun 2025.
87	Sentinel Services, LLC Top agencies VA (Department of Veterans Affairs)	$335,975	<0.1%	Rank history: not on the FY2021–FY2024 lists and #91 in FY2025; new, not ranked in Jul 2024–Jun 2025.
88	Bizon Group, Inc. Top agencies DOJ (Department of Justice) DHS (Department of Homeland Security) USAF (Department of the Air Force)	$329,851	<0.1%	Rank history: #83 in FY2021, not on the FY2022 list, #88 in FY2023, not on the FY2024 list and #95 in FY2025; new, not ranked in Jul 2024–Jun 2025.
89	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 Jul 2024–Jun 2025.
90	Nor-Fab Manufacturing Inc. Top agencies DHS (Department of Homeland Security)	$313,841	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 34 since Jul 2024–Jun 2025.
91	Pikes Peak Cargo Secure, Inc. Top agencies DLA (Defense Logistics Agency)	$308,683	<0.1%	Rank history: not on the FY2021 list, #90 in FY2022, #46 in FY2023, not on the FY2024 list and #71 in FY2025; down 15 since Jul 2024–Jun 2025.
92	Coordinated Defense Supply Systems, Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$306,152	<0.1%	Rank history: not on the FY2021 list, #100 in FY2022, not on the FY2023–FY2024 lists and #75 in FY2025; up 29 since Jul 2024–Jun 2025.
93	Highland Engineering, Inc. Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$296,386	<0.1%	Rank history: #66 in FY2021, #19 in FY2022, #65 in FY2023, #40 in FY2024 and not on the FY2025 list; down 52 since Jul 2024–Jun 2025.
94	Stag Enterprise, Inc. Top agencies Navy (Department of the Navy)	$295,089	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
95	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–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
96	GTA Drum, Inc. Top agencies DLA (Defense Logistics Agency)	$293,251	<0.1%	Rank history: #41 in FY2021, #55 in FY2022, #89 in FY2023 and not on the FY2024–FY2025 lists; up 108 since Jul 2024–Jun 2025.
97	Maxim Evaporators of America, LLC Top agencies DLA (Defense Logistics Agency)	$292,926	<0.1%	Rank history: not on the FY2021–FY2024 lists and #74 in FY2025; down 27 since Jul 2024–Jun 2025.
98	Lake Shore Systems Inc. Top agencies Navy (Department of the Navy)	$288,931	<0.1%	Rank history: not on the FY2021–FY2024 lists and #62 in FY2025; new, not ranked in Jul 2024–Jun 2025.
99	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 342 since Jul 2024–Jun 2025.
100	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 Jul 2024–Jun 2025.

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100 of 647 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	$2,114,794,665	Bechtel Corp
33243 Metal Can, Box, and Other Metal Container (Light Gauge) Manufacturing	$359,048,195	Conco, Inc.
33242 Metal Tank (Heavy Gauge) Manufacturing	$48,820,797	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 $2.7 billion obligated before deobligations, so they never pass 100%.
Parent companies: each action counts under the ultimate parent its award record names, or under the awardee when it names none, so no dollar counts twice. Parents of the same name (Inc., LLC and the like aside) count as one company, since FPDS records a company's parent under more than one UEI over time. GovTribe corrects a few parents and names by hand; see the corrections.
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 Jul 2024–Jun 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 Jul 2025–Jun 2026?

1. Bechtel Corp ($2.06B), 2. Conco, Inc. ($183M), 3. Isometrics Inc. ($39.2M), 4. BOH Environmental L.L.C. ($33.4M), 5. Brooks & Perkins, Inc. ($16M), 6. AAR Manufacturing, Inc. ($12.3M), 7. Erie Engineered Products, Inc. ($11.4M), 8. Sea Box Inc. ($10.1M), 9. Atlantic Diving Supply, Inc. ($10.1M), 10. Huntington Ingalls Industries, Inc. ($9.16M).

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