Top 100 Contractors in NAICS 3324: Boiler, Tank, and Shipping Container Manufacturing, FY2022

Name: Top 100 Contractors in NAICS 3324: Boiler, Tank, and Shipping Container Manufacturing, FY2022
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2021 – Sep 30, 2022 Code page on GovTribe

The top 10 won 95% of FY2022 NAICS 3324 contract dollars

Contract obligations: $2,689,198,363 Net of deobligations, by contracts coded NAICS 3324 or a code under it
Contractors: 730 Parent companies with an obligation
Largest contractor: Bechtel Corp $2.12 billion, 78.3% 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)	$2,119,405,973	78.3%	Rank history: #1 in FY2021, #1 in FY2023, #1 in FY2024 and #1 in FY2025; unchanged since FY2021.
2	Government of the United States 2 awardees, including Department of Energy and Federal Acquisition Service Top agencies Navy (Department of the Navy) DOJ (Department of Justice)	$316,073,883	11.7%	Rank history: #2 in FY2021 and not on the FY2023–FY2025 lists; unchanged since FY2021.
3	BOH Environmental, L.L.C. Top agencies DLA (Defense Logistics Agency)	$46,269,055	1.7%	Rank history: #3 in FY2021, #3 in FY2023, #3 in FY2024 and #3 in FY2025; unchanged since FY2021.
4	Conco, Inc. Top agencies Army (Department of the Army)	$21,860,498	0.8%	Rank history: #22 in FY2021, #2 in FY2023, #2 in FY2024 and #2 in FY2025; up 18 since FY2021.
5	Aarcorp 2 awardees, including AAR Manufacturing, Inc. and AAR Supply Chain, Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force) Army (Department of the Army)	$19,422,820	0.7%	Rank history: #4 in FY2021, #7 in FY2023, #20 in FY2024 and not on the FY2025 list; down 1 since FY2021.
6	Sea Box, Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$18,299,905	0.7%	Rank history: #5 in FY2021, #4 in FY2023, #4 in FY2024 and #12 in FY2025; down 1 since FY2021.
7	Huntington Ingalls Industries, Inc. Through Huntington Ingalls Inc. Top agencies Navy (Department of the Navy)	$10,532,946	0.4%	Rank history: #7 in FY2021, #8 in FY2023, #8 in FY2024 and #9 in FY2025; unchanged since FY2021.
8	The Champion Company Top agencies Navy (Department of the Navy)	$7,636,167	0.3%	Rank history: #33 in FY2021, #24 in FY2023, not on the FY2024 list and #69 in FY2025; up 25 since FY2021.
9	Brooks & Perkins, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$7,358,357	0.3%	Rank history: #39 in FY2021, #9 in FY2023, #13 in FY2024 and #7 in FY2025; up 30 since FY2021.
10	Sharkcage Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$6,146,778	0.2%	Rank history: #17 in FY2021, #6 in FY2023, #11 in FY2024 and #10 in FY2025; up 7 since FY2021.
11	Nexgen Composites LLC Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$6,015,940	0.2%	Rank history: #16 in FY2021, #29 in FY2023, #17 in FY2024 and #21 in FY2025; up 5 since FY2021.
12	Container Research Corp Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$5,643,741	0.2%	Rank history: #10 in FY2021 and not on the FY2023–FY2025 lists; down 2 since FY2021.
13	Kelvin International Corporation Top agencies Navy (Department of the Navy)	$5,642,294	0.2%	Rank history: #14 in FY2021 and not on the FY2023–FY2025 lists; up 1 since FY2021.
14	W&K Container, Inc. Top agencies DLA (Defense Logistics Agency)	$5,467,009	0.2%	Rank history: #8 in FY2021, #13 in FY2023, #9 in FY2024 and #11 in FY2025; down 6 since FY2021.
15	Sono International LLC Top agencies DLA (Defense Logistics Agency)	$4,830,857	0.2%	Rank history: #18 in FY2021 and not on the FY2023–FY2025 lists; up 3 since FY2021.
16	Readyone Industries Inc. Top agencies Army (Department of the Army)	$4,100,034	0.2%	Rank history: #11 in FY2021, #5 in FY2023 and not on the FY2024–FY2025 lists; down 5 since FY2021.
17	Theodor Wille Intertrade GMBH Through Atlantic Diving Supply, Inc. Top agencies DLA (Defense Logistics Agency)	$3,208,425	0.1%	Rank history: #84 in FY2021, #12 in FY2023, #73 in FY2024 and not on the FY2025 list; up 67 since FY2021.
18	Nally & Haydon, LLC Through Armag Corp Top agencies Army (Department of the Army) DOI (Department of the Interior)	$3,125,209	0.1%	Rank history: not on the FY2021 list, #16 in FY2023 and not on the FY2024–FY2025 lists; up 275 since FY2021.
19	Highland Engineering, Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$2,638,147	0.1%	Rank history: #66 in FY2021, #65 in FY2023, #40 in FY2024 and not on the FY2025 list; up 47 since FY2021.
20	Oak Ridge Technologies, LLC Top agencies DOE (Department of Energy)	$2,485,370	0.1%	Rank history: not on the FY2021 list, not on the FY2023 list, #48 in FY2024 and not on the FY2025 list; new.
21	Aqua-Chem, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$2,162,889	0.1%	Rank history: #40 in FY2021, #26 in FY2023, #27 in FY2024 and #20 in FY2025; up 19 since FY2021.
22	Solutions Ftg, Inc. Top agencies DLA (Defense Logistics Agency)	$1,977,327	0.1%	Rank history: not on the FY2021 list, #18 in FY2023, #15 in FY2024 and #17 in FY2025; new.
23	Advanced Packaging LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) DLA (Defense Logistics Agency)	$1,976,162	0.1%	Rank history: #69 in FY2021, #34 in FY2023, not on the FY2024 list and #58 in FY2025; up 46 since FY2021.
24	Garrett Container Systems, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) DLA (Defense Logistics Agency)	$1,826,937	0.1%	Rank history: #19 in FY2021, #11 in FY2023, #25 in FY2024 and #33 in FY2025; down 5 since FY2021.
25	Capewell Aerial Systems LLC Top agencies DLA (Defense Logistics Agency)	$1,812,500	0.1%	Rank history: not on the FY2021 list, #21 in FY2023, #31 in FY2024 and #31 in FY2025; new.
26	Xylem Inc. Through Fluid Handling LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,555,120	0.1%	Rank history: #20 in FY2021, #72 in FY2023 and not on the FY2024–FY2025 lists; down 6 since FY2021.
27	Intrepid Eagle Logistics, Inc. Top agencies DLA (Defense Logistics Agency)	$1,475,725	0.1%	Rank history: #25 in FY2021, #44 in FY2023, #5 in FY2024 and #15 in FY2025; down 2 since FY2021.
28	B UND T Marketing GMBH Top agencies DLA (Defense Logistics Agency)	$1,452,902	0.1%	Rank history: #32 in FY2021, #85 in FY2023 and not on the FY2024–FY2025 lists; up 4 since FY2021.
29	Ameripack Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,440,017	0.1%	Rank history: #44 in FY2021, #40 in FY2023, #100 in FY2024 and not on the FY2025 list; up 15 since FY2021.
30	Armor Metal Group Mason Incorporated Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,435,550	0.1%	Rank history: #82 in FY2021, #20 in FY2023 and not on the FY2024–FY2025 lists; up 52 since FY2021.
31	Sesolinc Grp, Inc. Top agencies DLA (Defense Logistics Agency)	$1,234,101	<0.1%	Rank history: #21 in FY2021 and not on the FY2023–FY2025 lists; down 10 since FY2021.
32	Parts Life Inc. Through Deval Life Cycle Support LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,199,171	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 176 since FY2021.
33	Hansome Energy Systems Inc. Top agencies Navy (Department of the Navy)	$1,182,455	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
34	B.e. Peterson, Inc. Top agencies Navy (Department of the Navy)	$1,158,500	<0.1%	Rank history: not on the FY2021 list, #31 in FY2023, #29 in FY2024 and not on the FY2025 list; new.
35	Kfowler Construction LLC Top agencies DOI (Department of the Interior)	$1,064,460	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
36	Huntsville Rehabilitation Foundation Top agencies DLA (Defense Logistics Agency)	$1,038,768	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
37	Huntington Ingalls Inc. Top agencies Navy (Department of the Navy)	$1,000,000	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
38	Tawreek Dimensions Establishment (Tde) Top agencies USAF (Department of the Air Force)	$990,150	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
39	KB Worldwide LLC Top agencies Army (Department of the Army)	$942,750	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
40	Phoenix Contracting LLC Top agencies USAF (Department of the Air Force) HHS (Department of Health and Human Services)	$930,992	<0.1%	Rank history: #58 in FY2021 and not on the FY2023–FY2025 lists; up 18 since FY2021.
41	Energysolutions LLC Through Energysolutions Services Inc. Top agencies Navy (Department of the Navy)	$785,522	<0.1%	Rank history: #47 in FY2021, #95 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2021.
42	Greene Machine & Manufacturing Inc. Top agencies USAF (Department of the Air Force)	$783,569	<0.1%	Rank history: #31 in FY2021, #22 in FY2023, #22 in FY2024 and #26 in FY2025; down 11 since FY2021.
43	Capital Industries Inc. Top agencies Navy (Department of the Navy) DOI (Department of the Interior)	$781,935	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
44	Hunter Defense Technolog 2 awardees, including Berg Manufacturing, Inc. and HDT Expeditionary Systems Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$770,840	<0.1%	Rank history: #23 in FY2021 and not on the FY2023–FY2025 lists; down 21 since FY2021.
45	Aero Precision Industries LLC Through Allclear Aerospace & Defense, Inc. Top agencies DLA (Defense Logistics Agency)	$764,742	<0.1%	Rank history: #36 in FY2021 and not on the FY2023–FY2025 lists; down 9 since FY2021.
46	DEA Incorporated Top agencies Navy (Department of the Navy)	$748,526	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 140 since FY2021.
47	Atlantic Pacific Standard LLC Top agencies HHS (Department of Health and Human Services)	$734,978	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
48	Science Applications International Corporation 2 awardees, including Asrc Federal Facilities Logistics, LLC Top agencies DLA (Defense Logistics Agency)	$673,969	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 117 since FY2021.
49	Jag Components, LLC Top agencies DLA (Defense Logistics Agency)	$638,390	<0.1%	Rank history: not on the FY2021 list, #15 in FY2023, #58 in FY2024 and #66 in FY2025; up 145 since FY2021.
50	Jetco Machine and Fabrication, LLC Top agencies Army (Department of the Army) DOI (Department of the Interior)	$633,250	<0.1%	Rank history: not on the FY2021 list, not on the FY2023 list, #67 in FY2024 and not on the FY2025 list; up 433 since FY2021.
51	Becklin Holdings, Inc. Top agencies NASA (National Aeronautics and Space Administration) DLA (Defense Logistics Agency)	$630,620	<0.1%	Rank history: #49 in FY2021 and not on the FY2023–FY2025 lists; down 2 since FY2021.
52	Pioneer Industries, LLC Top agencies DLA (Defense Logistics Agency)	$607,562	<0.1%	Rank history: #60 in FY2021, not on the FY2023 list, #44 in FY2024 and #63 in FY2025; up 8 since FY2021.
53	Boss Innovation & Marketing Inc. Top agencies DOJ (Department of Justice)	$601,782	<0.1%	Rank history: #77 in FY2021, #63 in FY2023, #62 in FY2024 and #65 in FY2025; up 24 since FY2021.
54	Premier & Companies, Inc. Top agencies DLA (Defense Logistics Agency)	$585,466	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 410 since FY2021.
55	GTA Drum, Inc. Top agencies DLA (Defense Logistics Agency)	$583,790	<0.1%	Rank history: #41 in FY2021, #89 in FY2023 and not on the FY2024–FY2025 lists; down 14 since FY2021.
56	Dibert Valve and Fitting Company, Incorporated Top agencies Navy (Department of the Navy)	$573,498	<0.1%	Rank history: #38 in FY2021, #86 in FY2023 and not on the FY2024–FY2025 lists; down 18 since FY2021.
57	HRK Enterprises, Inc. Top agencies DLA (Defense Logistics Agency)	$552,885	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
58	Pipestone Equipment, LLC Top agencies DOI (Department of the Interior)	$551,814	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 67 since FY2021.
59	Container Alliance Co Top agencies USAF (Department of the Air Force)	$522,000	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
60	Pelican Products, Inc. Through Hardigg Industries, LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$502,262	<0.1%	Rank history: #42 in FY2021, #35 in FY2023 and not on the FY2024–FY2025 lists; down 18 since FY2021.
61	Call-Oneill Containers LLC Top agencies USAF (Department of the Air Force) DOJ (Department of Justice) Navy (Department of the Navy)	$481,926	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 260 since FY2021.
62	Vapor Power International, LLC Top agencies Navy (Department of the Navy)	$460,441	<0.1%	Rank history: not on the FY2021 list, #94 in FY2023 and not on the FY2024–FY2025 lists; up 293 since FY2021.
63	Siemens Aktiengesellschaft Through Siemens S.P.A. Top agencies Army (Department of the Army)	$446,728	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
64	Jgils, LLC Top agencies DLA (Defense Logistics Agency)	$424,961	<0.1%	Rank history: #37 in FY2021, #38 in FY2023, #30 in FY2024 and #16 in FY2025; down 27 since FY2021.
65	Xchanger Manufacturing Corporation Top agencies DLA (Defense Logistics Agency)	$418,500	<0.1%	Rank history: #52 in FY2021 and not on the FY2023–FY2025 lists; down 13 since FY2021.
66	Pyro Combustion & Controls Inc. Top agencies USAF (Department of the Air Force)	$412,965	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
67	Argo Turboserve Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$412,112	<0.1%	Rank history: not on the FY2021 list, #36 in FY2023, #37 in FY2024 and #54 in FY2025; up 75 since FY2021.
68	Bollinger Shipyards Inc Through Chand, L.L.C. Top agencies DLA (Defense Logistics Agency)	$411,957	<0.1%	Rank history: #26 in FY2021, #59 in FY2023 and not on the FY2024–FY2025 lists; down 42 since FY2021.
69	Graham Corp Top agencies Navy (Department of the Navy)	$411,559	<0.1%	Rank history: not on the FY2021 list, #64 in FY2023, #96 in FY2024 and #28 in FY2025; up 341 since FY2021.
70	Unimex Corporation Through Paragon Defense Solutions Inc. Top agencies DLA (Defense Logistics Agency)	$408,700	<0.1%	Rank history: #98 in FY2021 and not on the FY2023–FY2025 lists; up 28 since FY2021.
71	R P M Supply Corporation Top agencies DLA (Defense Logistics Agency)	$404,835	<0.1%	Rank history: not on the FY2021 list, #60 in FY2023, #60 in FY2024 and not on the FY2025 list; up 150 since FY2021.
72	Preece Incorporated Through Aerol Co., Inc. Top agencies DLA (Defense Logistics Agency)	$394,843	<0.1%	Rank history: not on the FY2021 list, #98 in FY2023, not on the FY2024 list and #60 in FY2025; up 220 since FY2021.
73	RTX Corporation 6 awardees, including Intertrade Limited, Simmonds Precision Products Inc. and Rockwell Collins, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$390,722	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 84 since FY2021.
74	Phoenix Trading Inc. Top agencies DLA (Defense Logistics Agency)	$390,293	<0.1%	Rank history: #53 in FY2021, #79 in FY2023 and not on the FY2024–FY2025 lists; down 21 since FY2021.
75	Maro & Associates Inc. Top agencies DLA (Defense Logistics Agency)	$387,955	<0.1%	Rank history: #43 in FY2021, not on the FY2023 list, #16 in FY2024 and not on the FY2025 list; down 32 since FY2021.
76	Lion Group Inc. Top agencies Army (Department of the Army)	$384,204	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
77	Fad Pennsylvania Inc. Top agencies Navy (Department of the Navy)	$383,088	<0.1%	Rank history: not on the FY2021 list, #42 in FY2023 and not on the FY2024–FY2025 lists; new.
78	Patriot Mechanical, LLC Top agencies USAF (Department of the Air Force)	$381,979	<0.1%	Rank history: #67 in FY2021 and not on the FY2023–FY2025 lists; down 11 since FY2021.
79	DLM Enterprises Inc. Top agencies GSA (General Services Administration)	$381,071	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
80	Janels Industries Inc. Top agencies DLA (Defense Logistics Agency)	$380,850	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
81	Brimhall Industrial Inc. Top agencies DOI (Department of the Interior)	$376,426	<0.1%	Rank history: #59 in FY2021 and not on the FY2023–FY2025 lists; down 22 since FY2021.
82	MPC Group LLC Through MPC Containment Systems LLC Top agencies DLA (Defense Logistics Agency)	$356,495	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 81 since FY2021.
83	Progressive Recovery Inc. Top agencies NASA (National Aeronautics and Space Administration) HHS (Department of Health and Human Services)	$343,923	<0.1%	Rank history: not on the FY2021 list, #61 in FY2023, #65 in FY2024 and not on the FY2025 list; up 131 since FY2021.
84	Lynchburg Air Preheater Corporation Top agencies Army (Department of the Army)	$331,832	<0.1%	Rank history: not on the FY2021 list, not on the FY2023 list, #34 in FY2024 and #77 in FY2025; up 40 since FY2021.
85	STS Operating, Inc. Top agencies Army (Department of the Army)	$329,072	<0.1%	Rank history: #81 in FY2021 and not on the FY2023–FY2025 lists; down 4 since FY2021.
86	Sanitz Enterprises, Inc. Top agencies DLA (Defense Logistics Agency)	$314,916	<0.1%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #80 in FY2025; new.
87	Ivan Ware & Son, LLC Top agencies VA (Department of Veterans Affairs)	$304,549	<0.1%	Rank history: #63 in FY2021, #92 in FY2023 and not on the FY2024–FY2025 lists; down 24 since FY2021.
88	A Trustworthy Supply Source Inc. Top agencies DLA (Defense Logistics Agency)	$302,845	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 21 since FY2021.
89	Inflation Systems, Inc. Top agencies DLA (Defense Logistics Agency)	$301,426	<0.1%	Rank history: not on the FY2021 list, not on the FY2023 list, #52 in FY2024 and #73 in FY2025; up 21 since FY2021.
90	Pikes Peak Cargo Secure, Inc. Top agencies DLA (Defense Logistics Agency)	$290,825	<0.1%	Rank history: not on the FY2021 list, #46 in FY2023, not on the FY2024 list and #71 in FY2025; up 29 since FY2021.
91	Yacko Construction Inc. Top agencies VA (Department of Veterans Affairs)	$290,297	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
92	TECH Service Solutions LLC Top agencies USAF (Department of the Air Force)	$278,386	<0.1%	Rank history: not on the FY2021 list, #76 in FY2023 and not on the FY2024–FY2025 lists; new.
93	Lynn Electronics LLC Top agencies DLA (Defense Logistics Agency)	$277,311	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 47 since FY2021.
94	Airgo Industries, Inc. Top agencies DLA (Defense Logistics Agency)	$276,632	<0.1%	Rank history: not on the FY2021 list, #57 in FY2023, #21 in FY2024 and #25 in FY2025; up 19 since FY2021.
95	Fassmer Service America LLC Top agencies Navy (Department of the Navy)	$275,511	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
96	Snap-On Incorporated Through Idsc Holdings LLC Top agencies DLA (Defense Logistics Agency) DOJ (Department of Justice)	$269,588	<0.1%	Rank history: #94 in FY2021, #32 in FY2023 and not on the FY2024–FY2025 lists; down 2 since FY2021.
97	Hazmatpac Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$267,142	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 25 since FY2021.
98	Container Products Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$266,474	<0.1%	Rank history: #71 in FY2021 and not on the FY2023–FY2025 lists; down 27 since FY2021.
99	Onodi Tool & Engineering Co Top agencies Army (Department of the Army)	$261,395	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
100	Coordinated Defense Supply Systems, Inc. Top agencies Navy (Department of the Navy)	$250,000	<0.1%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #75 in FY2025; up 264 since FY2021.

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100 of 730 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	$2,468,015,315	Bechtel Corp
33243 Metal Can, Box, and Other Metal Container (Light Gauge) Manufacturing	$198,735,424	BOH Environmental, L.L.C.
33242 Metal Tank (Heavy Gauge) Manufacturing	$22,447,624	Kelvin International Corporation

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 $2.71 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.
Fiscal year 2022 ran Oct 1, 2021 – Sep 30, 2022. The Department of Defense reports its contract actions to FPDS about 90 days late, so a fiscal year is ranked once they're in, in February, and the list doesn't change after.
Rank changes compare with FY2021. "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. The step from FY2021 takes the color of the rank change beside it.
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 FY2022?

1. Bechtel Corp ($2.12B), 2. Government of the United States ($316M), 3. BOH Environmental, L.L.C. ($46.3M), 4. Conco, Inc. ($21.9M), 5. Aarcorp ($19.4M), 6. Sea Box, Inc. ($18.3M), 7. Huntington Ingalls Industries, Inc. ($10.5M), 8. The Champion Company ($7.64M), 9. Brooks & Perkins, Inc. ($7.36M), 10. Sharkcage Inc. ($6.15M).

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