Top 100 Contractors in NAICS 33241: Power Boiler and Heat Exchanger Manufacturing, FY2023

Name: Top 100 Contractors in NAICS 33241: Power Boiler and Heat Exchanger Manufacturing, FY2023
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2022 – Sep 30, 2023 Code page on GovTribe

The top 10 won 98% of FY2023 NAICS 33241 contract dollars

Contract obligations: $1,462,569,457 Net of deobligations, by contracts coded NAICS 33241 or a code under it
Contractors: 174 Parent companies with an obligation
Largest contractor: Bechtel Corp $1.43 billion, 96.8% 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)	$1,429,547,739	96.8%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2024 and #1 in FY2025; unchanged since FY2022.
2	Huntington Ingalls Industries, Inc. Through Huntington Ingalls Inc. Top agencies Navy (Department of the Navy)	$10,209,110	0.7%	Rank history: #3 in FY2021, #3 in FY2022, #2 in FY2024 and #2 in FY2025; up 1 since FY2022.
3	Sistersville Tank Works Inc. Top agencies USAF (Department of the Air Force)	$2,332,611	0.2%	Rank history: not on the FY2021–FY2022 lists, #3 in FY2024 and not on the FY2025 list; new.
4	Aqua-Chem, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$2,095,286	0.1%	Rank history: #9 in FY2021, #4 in FY2022, #5 in FY2024 and #6 in FY2025; unchanged since FY2022.
5	Bhayana Brothers LLC Top agencies Navy (Department of the Navy)	$1,827,930	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
6	Argo Turboserve Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,139,435	0.1%	Rank history: #42 in FY2021, #18 in FY2022, #10 in FY2024 and #14 in FY2025; up 12 since FY2022.
7	Jgils, LLC Top agencies DLA (Defense Logistics Agency)	$805,264	0.1%	Rank history: #10 in FY2021, #23 in FY2022, #9 in FY2024 and #4 in FY2025; up 16 since FY2022.
8	Fad Pennsylvania Inc. Top agencies Navy (Department of the Navy)	$776,318	0.1%	Rank history: not on the FY2021 list, #20 in FY2022 and not on the FY2024–FY2025 lists; up 12 since FY2022.
9	S I T Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$750,028	0.1%	Rank history: #11 in FY2021, #41 in FY2022, #12 in FY2024 and #35 in FY2025; up 32 since FY2022.
10	Allied Defense Industries Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$619,427	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 127 since FY2022.
11	All State Construction Inc. Top agencies DOJ (Department of Justice)	$582,357	<0.1%	Rank history: not on the FY2021 list, #76 in FY2022 and not on the FY2024–FY2025 lists; up 65 since FY2022.
12	Curtiss-Wright Corporation 2 awardees, including Peerless Instrument Co., Inc. and Curtiss-Wright Electro-Mechanical Corp Top agencies Navy (Department of the Navy)	$521,602	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
13	Bollinger Shipyards Inc Through Chand, L.L.C. Top agencies DLA (Defense Logistics Agency)	$482,736	<0.1%	Rank history: #5 in FY2021, #19 in FY2022 and not on the FY2024–FY2025 lists; up 6 since FY2022.
14	Graham Corp Top agencies Navy (Department of the Navy)	$482,593	<0.1%	Rank history: not on the FY2021 list, #17 in FY2022, #22 in FY2024 and #7 in FY2025; up 3 since FY2022.
15	The Plumbing Shop, Inc. Top agencies DHS (Department of Homeland Security)	$456,938	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
16	Industrial Heat Transfer, Inc. Top agencies Army (Department of the Army)	$425,232	<0.1%	Rank history: #50 in FY2021, not on the FY2022 list, not on the FY2024 list and #78 in FY2025; returned.
17	Xylem Inc. Through Fluid Handling LLC Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security) Navy (Department of the Navy)	$373,517	<0.1%	Rank history: #4 in FY2021, #5 in FY2022, #56 in FY2024 and not on the FY2025 list; down 12 since FY2022.
18	Wren Industries LLC Top agencies Army (Department of the Army)	$344,740	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
19	Lektron Inc. Top agencies Army (Department of the Army)	$339,485	<0.1%	Rank history: not on the FY2021–FY2022 lists, #6 in FY2024 and not on the FY2025 list; new.
20	Astra Products Co., Inc. of Tampa Top agencies Navy (Department of the Navy)	$326,238	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
21	Phoenix Trading Inc. Top agencies DLA (Defense Logistics Agency)	$324,014	<0.1%	Rank history: #13 in FY2021, #27 in FY2022, #64 in FY2024 and #42 in FY2025; up 6 since FY2022.
22	Dibert Valve and Fitting Company, Incorporated 2 awardees Top agencies Navy (Department of the Navy)	$316,747	<0.1%	Rank history: #7 in FY2021, #11 in FY2022 and not on the FY2024–FY2025 lists; down 11 since FY2022.
23	Dela Technology Corporation Top agencies DLA (Defense Logistics Agency)	$314,577	<0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #81 in FY2025; new.
24	Ivan Ware & Son, LLC Top agencies VA (Department of Veterans Affairs)	$298,135	<0.1%	Rank history: #16 in FY2021, #28 in FY2022 and not on the FY2024–FY2025 lists; up 4 since FY2022.
25	Vapor Power International, LLC Top agencies Navy (Department of the Navy)	$295,118	<0.1%	Rank history: #95 in FY2021, #13 in FY2022, #42 in FY2024 and not on the FY2025 list; down 12 since FY2022.
26	Boone & Boone Sales Co., Inc. Top agencies Army (Department of the Army)	$274,845	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
27	Power Mechanical Inc. Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$273,175	<0.1%	Rank history: not on the FY2021–FY2022 lists, #13 in FY2024 and #46 in FY2025; up 131 since FY2022.
28	RIX Industries Top agencies DLA (Defense Logistics Agency)	$247,884	<0.1%	Rank history: not on the FY2021 list, #46 in FY2022, #86 in FY2024 and not on the FY2025 list; up 18 since FY2022.
29	Veterans Elite Inc Top agencies VA (Department of Veterans Affairs)	$244,495	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
30	Phoenix Systems Engineering Inc. Top agencies DLA (Defense Logistics Agency)	$230,575	<0.1%	Rank history: #20 in FY2021, #42 in FY2022, #19 in FY2024 and #36 in FY2025; up 12 since FY2022.
31	Burhani Enterprises Inc. Top agencies DLA (Defense Logistics Agency) VA (Department of Veterans Affairs)	$217,365	<0.1%	Rank history: #60 in FY2021, #36 in FY2022, #61 in FY2024 and #18 in FY2025; up 5 since FY2022.
32	Advanced Cooling Technologies Inc. Top agencies Navy (Department of the Navy)	$213,400	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
33	Martin Military Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$210,335	<0.1%	Rank history: #44 in FY2021, #98 in FY2022, #46 in FY2024 and not on the FY2025 list; up 65 since FY2022.
34	R & M Government Services Inc. Top agencies DLA (Defense Logistics Agency)	$205,693	<0.1%	Rank history: not on the FY2021–FY2022 lists, #45 in FY2024 and not on the FY2025 list; new.
35	Brown Point Facility Management Solutions, LLC Top agencies DOJ (Department of Justice)	$197,633	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
36	Pioneer Industries, LLC Top agencies DLA (Defense Logistics Agency)	$193,899	<0.1%	Rank history: #18 in FY2021, #12 in FY2022, #14 in FY2024 and #24 in FY2025; down 24 since FY2022.
37	Xchanger Manufacturing Corporation Top agencies DLA (Defense Logistics Agency)	$193,850	<0.1%	Rank history: #12 in FY2021, #15 in FY2022, #65 in FY2024 and not on the FY2025 list; down 22 since FY2022.
38	K5 Defense LLC Top agencies DLA (Defense Logistics Agency) USDA (Department of Agriculture)	$181,345	<0.1%	Rank history: not on the FY2021–FY2022 lists, #91 in FY2024 and #48 in FY2025; new.
39	Onesource Europe GMBH Top agencies Army (Department of the Army)	$173,969	<0.1%	Rank history: not on the FY2021–FY2022 lists, #50 in FY2024 and not on the FY2025 list; new.
40	Cole Industrial Inc. Top agencies Army (Department of the Army)	$172,186	<0.1%	Rank history: not on the FY2021–FY2022 lists, #39 in FY2024 and not on the FY2025 list; new.
41	RTX Corporation Through Hamilton Sundstrand Corporation Top agencies Navy (Department of the Navy)	$162,438	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
42	William A. Harrison, Inc. Top agencies DOJ (Department of Justice)	$161,000	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
43	Intermountain Hydronic Specialties LLC Top agencies Army (Department of the Army)	$147,826	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
44	Thermal Products, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$142,295	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
45	TECH Service Solutions LLC Top agencies DOI (Department of the Interior) USAF (Department of the Air Force)	$131,431	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
46	F.w. Webb Company Top agencies DOJ (Department of Justice) DOT (Department of Transportation)	$129,176	<0.1%	Rank history: not on the FY2021 list, #48 in FY2022 and not on the FY2024–FY2025 lists; up 2 since FY2022.
47	Alpine Supply Inc. Top agencies DLA (Defense Logistics Agency)	$127,334	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
48	NGH Retail LLC Top agencies DLA (Defense Logistics Agency)	$127,009	<0.1%	Rank history: #38 in FY2021, #72 in FY2022, #47 in FY2024 and #47 in FY2025; up 24 since FY2022.
49	C & D Equipment Company, Inc. Top agencies DLA (Defense Logistics Agency)	$116,367	<0.1%	Rank history: not on the FY2021 list, #100 in FY2022 and not on the FY2024–FY2025 lists; up 51 since FY2022.
50	MCO Solutions, Inc. Top agencies DLA (Defense Logistics Agency)	$112,072	<0.1%	Rank history: not on the FY2021 list, #33 in FY2022, #25 in FY2024 and #30 in FY2025; down 17 since FY2022.
51	Walashek Industrial & Marine Inc. Top agencies Navy (Department of the Navy)	$111,938	<0.1%	Rank history: not on the FY2021–FY2022 lists, #41 in FY2024 and not on the FY2025 list; new.
52	Separator Spares & Equipment LLC Top agencies DLA (Defense Logistics Agency)	$110,400	<0.1%	Rank history: not on the FY2021 list, #35 in FY2022, #21 in FY2024 and #29 in FY2025; down 17 since FY2022.
53	VSE Corporation Top agencies DLA (Defense Logistics Agency)	$109,489	<0.1%	Rank history: #34 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 98 since FY2022.
54	TNL Sales LLC Top agencies DLA (Defense Logistics Agency)	$106,338	<0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #71 in FY2025; up 48 since FY2022.
55	Stealth Supply Inc Top agencies DLA (Defense Logistics Agency)	$103,535	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
56	C&J Resolutions LLC Top agencies Navy (Department of the Navy)	$102,560	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
57	Fincantieri Marine Systems North America Inc. Top agencies DLA (Defense Logistics Agency)	$98,996	<0.1%	Rank history: #63 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 78 since FY2022.
58	Mayers Industries Corp Top agencies Army (Department of the Army) DOI (Department of the Interior)	$97,420	<0.1%	Rank history: #14 in FY2021, #62 in FY2022 and not on the FY2024–FY2025 lists; up 4 since FY2022.
59	Westsim Engineering, Inc. Top agencies DLA (Defense Logistics Agency)	$91,925	<0.1%	Rank history: #59 in FY2021, #94 in FY2022, #94 in FY2024 and #59 in FY2025; up 35 since FY2022.
60	R.f. Macdonald Co., LLC Top agencies VA (Department of Veterans Affairs)	$79,141	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
61	California Boiler, Inc. Top agencies VA (Department of Veterans Affairs)	$78,043	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
62	Mccook Boiler and Pump Company Through MC Cook Boiler & Pump Co Top agencies HHS (Department of Health and Human Services)	$76,098	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
63	Industrial Engineering and Equipment Company Incorporated 2 awardees, including Accu-Therm LLC and Indeeco LLC Top agencies DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$69,958	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 38 since FY2022.
64	Supplyforce.com, LLC Top agencies VA (Department of Veterans Affairs)	$69,289	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
65	Dreamfind, Inc. Top agencies DLA (Defense Logistics Agency)	$64,823	<0.1%	Rank history: not on the FY2021 list, #38 in FY2022, #44 in FY2024 and #69 in FY2025; down 27 since FY2022.
66	Royal Media Network Inc Top agencies Navy (Department of the Navy)	$63,397	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
67	Cepeda Associates, Inc. Top agencies DLA (Defense Logistics Agency)	$63,004	<0.1%	Rank history: not on the FY2021 list, #96 in FY2022, #66 in FY2024 and not on the FY2025 list; up 29 since FY2022.
68	Auxiliary Systems Inc. Top agencies Navy (Department of the Navy)	$62,800	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
69	Chas.d. West & Co Top agencies Navy (Department of the Navy)	$59,223	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
70	PKJ International LLC Top agencies Army (Department of the Army)	$58,709	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
71	Blunck Industrial Services, LLC Top agencies USAF (Department of the Air Force)	$56,908	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
72	Purple Heart Connect LLC Top agencies VA (Department of Veterans Affairs)	$53,500	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
73	Applied Cooling Technology, LLC Top agencies Navy (Department of the Navy)	$52,866	<0.1%	Rank history: #27 in FY2021, not on the FY2022 list, #15 in FY2024 and not on the FY2025 list; returned.
74	GEC Industrial Boilers Top agencies DOS (Department of State)	$49,996	<0.1%	Rank history: #76 in FY2021, #74 in FY2022, #80 in FY2024 and #93 in FY2025; unchanged since FY2022.
75	Johnson Controls, Inc. Top agencies VA (Department of Veterans Affairs)	$48,902	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
76	In-Mar Solutions LLC Top agencies DLA (Defense Logistics Agency)	$48,617	<0.1%	Rank history: not on the FY2021 list, #99 in FY2022, #88 in FY2024 and not on the FY2025 list; up 23 since FY2022.
77	R.w. Fernstrum & Company Top agencies Army (Department of the Army)	$48,242	<0.1%	Rank history: not on the FY2021 list, #69 in FY2022, #40 in FY2024 and not on the FY2025 list; down 8 since FY2022.
78	ECI Defense Group, Inc. Top agencies DLA (Defense Logistics Agency)	$48,042	<0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #3 in FY2025; new.
79	Ranger Elite Management, LLC Top agencies Army (Department of the Army)	$47,729	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
80	U.s.a. Spares Inc. Top agencies Navy (Department of the Navy)	$47,250	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
81	John Q. Bullard Assoc. Inc. Top agencies Navy (Department of the Navy)	$47,155	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
82	Frontier Supply, Inc. Top agencies DOI (Department of the Interior)	$44,734	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
83	Ampco-Pittsburgh Corporation Through Air & Liquid Systems Corp Top agencies USDA (Department of Agriculture)	$43,194	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
84	Johnson & Towers Inc. Top agencies DLA (Defense Logistics Agency)	$41,530	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 60 since FY2022.
85	Hoffman & Hoffman Inc. Through Hoffman Hydronics, LLC Top agencies Navy (Department of the Navy)	$41,398	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
86	Ruta Supplies Inc. Top agencies DLA (Defense Logistics Agency)	$38,069	<0.1%	Rank history: not on the FY2021–FY2022 lists, #60 in FY2024 and not on the FY2025 list; new.
87	Larkos Packing and Distribution Inc. Top agencies DLA (Defense Logistics Agency)	$37,963	<0.1%	Rank history: not on the FY2021–FY2022 lists, #53 in FY2024 and not on the FY2025 list; up 63 since FY2022.
88	Aktio Corporation Top agencies Navy (Department of the Navy)	$36,799	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
89	DC Fabricators Inc. Top agencies DLA (Defense Logistics Agency)	$35,788	<0.1%	Rank history: not on the FY2021–FY2022 lists, #98 in FY2024 and #74 in FY2025; up 18 since FY2022.
90	Florida Hydronics, Incorporated Top agencies Army (Department of the Army)	$34,220	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
91	Mahan's Thermal Products, Inc. Top agencies Army (Department of the Army)	$33,418	<0.1%	Rank history: #69 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
92	Derbyshire Machine & Tool Co Top agencies DLA (Defense Logistics Agency)	$32,900	<0.1%	Rank history: #98 in FY2021, not on the FY2022 list, #87 in FY2024 and #63 in FY2025; returned.
93	DRS Global Enterprise Solutions Inc Through Engineered Coil Company Top agencies DLA (Defense Logistics Agency)	$31,430	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
94	Scientifica LLC Through Armfield Incorporated Top agencies Army (Department of the Army)	$30,278	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
95	Bel - O Sales and Service Co., Inc. Top agencies USAF (Department of the Air Force)	$29,970	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
96	Seaserve LOS Angeles LLC Top agencies Navy (Department of the Navy)	$29,864	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
97	Hydro-Flo Products, Inc. Top agencies VA (Department of Veterans Affairs)	$29,530	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
98	Lotususa, Inc. Top agencies USAF (Department of the Air Force)	$26,740	<0.1%	Rank history: not on the FY2021–FY2022 lists, #74 in FY2024 and not on the FY2025 list; new.
99	Johnson Controls Security Solutions LLC Through Johnson Controls Navy Systems, LLC Top agencies DLA (Defense Logistics Agency)	$26,243	<0.1%	Rank history: #94 in FY2021, #54 in FY2022 and not on the FY2024–FY2025 lists; down 45 since FY2022.
100	Snake River Mechanical Electrical Plumbing Complete, Inc. Top agencies USDA (Department of Agriculture)	$26,141	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.

Show 75 more

100 of 174 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 33241

Code	Net obligations	Largest contractor
332410 Power Boiler and Heat Exchanger Manufacturing	$1,462,569,457	Bechtel Corp

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 $1.48 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 2023 ran Oct 1, 2022 – Sep 30, 2023. 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 FY2022. "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 FY2022 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 33241 contractors in FY2023?

1. Bechtel Corp ($1.43B), 2. Huntington Ingalls Industries, Inc. ($10.2M), 3. Sistersville Tank Works Inc. ($2.33M), 4. Aqua-Chem, Inc. ($2.1M), 5. Bhayana Brothers LLC ($1.83M), 6. Argo Turboserve Corporation ($1.14M), 7. Jgils, LLC ($805K), 8. Fad Pennsylvania Inc. ($776K), 9. S I T Corporation ($750K), 10. Allied Defense Industries Inc. ($619K).

On GovTribe

Research every contractor on this list

Every contract, task order and IDV they hold
Their subsidiaries, teammates and competitors
Open opportunities they're positioned for
Alerts when they win new work

Try for free Login