Top 100 Contractors in PSC 44: Furnace/Steam/Drying; Nuclear Reactor, FY2022

Name: Top 100 Contractors in PSC 44: Furnace/Steam/Drying; Nuclear Reactor, FY2022
Creator: GovTribe

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

The top 10 won 97% of FY2022 PSC 44 contract dollars

Contract obligations: $4,006,084,027 Net of deobligations, by contracts coded PSC 44 or a code under it
Contractors: 493 Parent companies with an obligation
Largest contractor: Bechtel Corp $2.12 billion, 52.1% 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	52.1%	Rank history: #1 in FY2021, #2 in FY2023, #2 in FY2024 and #6 in FY2025; unchanged since FY2021.
2	Fluor Corporation Through Fluor Marine Propulsion, LLC Top agencies Navy (Department of the Navy)	$1,719,782,210	42.3%	Rank history: #2 in FY2021, #1 in FY2023, #1 in FY2024 and #1 in FY2025; unchanged since FY2021.
3	General Dynamics Corporation 2 awardees, including Electric Boat Corporation and General Dynamics Land Systems Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$40,480,131	1.0%	Rank history: #5 in FY2021, #3 in FY2023, #4 in FY2024 and #3 in FY2025; up 2 since FY2021.
4	Westinghouse Electric Company LLC Through Westinghouse Government Services LLC Top agencies DOE (Department of Energy)	$21,946,768	0.5%	Rank history: #4 in FY2021, #5 in FY2023, #9 in FY2024 and not on the FY2025 list; unchanged since FY2021.
5	Enterprise Cabling, Inc. Top agencies Navy (Department of the Navy)	$18,108,216	0.4%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
6	Cepeda Associates, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$13,893,423	0.3%	Rank history: #12 in FY2021, #7 in FY2023, #7 in FY2024 and #9 in FY2025; up 6 since FY2021.
7	Huntington Ingalls Industries, Inc. Through Huntington Ingalls Inc. Top agencies Navy (Department of the Navy)	$10,532,946	0.3%	Rank history: #6 in FY2021, #6 in FY2023, #8 in FY2024 and #7 in FY2025; down 1 since FY2021.
8	RTX Corporation 4 awardees, including Hamilton Sundstrand Corporation and Raytheon Company Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$5,459,793	0.1%	Rank history: #7 in FY2021, #15 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2021.
9	Aqua-Chem, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$2,274,658	0.1%	Rank history: #13 in FY2021, #13 in FY2023, #15 in FY2024 and #13 in FY2025; up 4 since FY2021.
10	Gnap LLC Top agencies Army (Department of the Army)	$2,262,350	0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
11	J Kokolakis Contracting Inc. Top agencies Army (Department of the Army)	$1,726,014	<0.1%	Rank history: #3 in FY2021 and not on the FY2023–FY2025 lists; down 8 since FY2021.
12	Caliber Sales Engineering Inc. Top agencies USAF (Department of the Air Force)	$1,584,998	<0.1%	Rank history: not on the FY2021 list, #24 in FY2023 and not on the FY2024–FY2025 lists; new.
13	Xylem Inc. Through Fluid Handling LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,555,120	<0.1%	Rank history: #8 in FY2021, #44 in FY2023 and not on the FY2024–FY2025 lists; down 5 since FY2021.
14	Thomas-Guy Limited Through Waltron Bull & Roberts, LLC Top agencies Navy (Department of the Navy)	$1,332,685	<0.1%	Rank history: #45 in FY2021 and not on the FY2023–FY2025 lists; up 31 since FY2021.
15	Export 220Volt Inc. Top agencies DOS (Department of State)	$1,131,189	<0.1%	Rank history: #50 in FY2021, #34 in FY2023, #20 in FY2024 and #32 in FY2025; up 35 since FY2021.
16	K2 Contracting Group, LLC Top agencies DOT (Department of Transportation)	$1,044,800	<0.1%	Rank history: not on the FY2021 list, #49 in FY2023 and not on the FY2024–FY2025 lists; up 218 since FY2021.
17	Fad Pennsylvania Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,027,153	<0.1%	Rank history: #20 in FY2021, #31 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2021.
18	Hunter Defense Technolog Through HDT Expeditionary Systems Inc. Top agencies Army (Department of the Army)	$1,022,058	<0.1%	Rank history: #26 in FY2021, #25 in FY2023 and not on the FY2024–FY2025 lists; up 8 since FY2021.
19	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.
20	Argo Turboserve Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$950,130	<0.1%	Rank history: #18 in FY2021, #12 in FY2023, #17 in FY2024 and #15 in FY2025; down 2 since FY2021.
21	Technical Applications Inc. Top agencies Treasury (Department of the Treasury)	$836,580	<0.1%	Rank history: not on the FY2021 list, #19 in FY2023 and not on the FY2024–FY2025 lists; up 267 since FY2021.
22	Accudyne Systems, Inc. Top agencies Army (Department of the Army)	$778,900	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
23	Drytech Inc. Top agencies DLA (Defense Logistics Agency)	$746,441	<0.1%	Rank history: #35 in FY2021, #42 in FY2023, #36 in FY2024 and #40 in FY2025; up 12 since FY2021.
24	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.
25	Long Building Technologies, Inc. Top agencies Army (Department of the Army)	$726,923	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
26	Genuine Parts Company Through Motion Industries, Inc. Top agencies Navy (Department of the Navy)	$706,509	<0.1%	Rank history: #36 in FY2021, #26 in FY2023 and not on the FY2024–FY2025 lists; up 10 since FY2021.
27	Science Applications International Corporation Through Asrc Federal Facilities Logistics, LLC Top agencies DLA (Defense Logistics Agency)	$671,156	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
28	Marine Electric Systems Inc. Top agencies Navy (Department of the Navy)	$653,569	<0.1%	Rank history: #91 in FY2021 and not on the FY2023–FY2025 lists; up 63 since FY2021.
29	Pyro Combustion & Controls Inc. Top agencies USAF (Department of the Air Force)	$624,800	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
30	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force) Navy (Department of the Navy)	$619,155	<0.1%	Rank history: #11 in FY2021, not on the FY2023 list, #32 in FY2024 and #33 in FY2025; down 19 since FY2021.
31	Pioneer Industries, LLC Top agencies DLA (Defense Logistics Agency)	$609,975	<0.1%	Rank history: #40 in FY2021, #60 in FY2023, #40 in FY2024 and #28 in FY2025; up 9 since FY2021.
32	Howell Laboratories Inc. Top agencies DLA (Defense Logistics Agency)	$591,860	<0.1%	Rank history: #24 in FY2021, #27 in FY2023, #57 in FY2024 and #20 in FY2025; down 8 since FY2021.
33	Dibert Valve and Fitting Company, Incorporated Top agencies Navy (Department of the Navy)	$574,158	<0.1%	Rank history: #29 in FY2021, #64 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2021.
34	LN Curtis & Sons Top agencies Navy (Department of the Navy)	$542,161	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
35	O.C. Lugo Co. Inc. the Top agencies DLA (Defense Logistics Agency)	$533,808	<0.1%	Rank history: #10 in FY2021, #8 in FY2023, #10 in FY2024 and #5 in FY2025; down 25 since FY2021.
36	Thermal Technology LLC Top agencies NASA (National Aeronautics and Space Administration)	$510,500	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 114 since FY2021.
37	Painter Tool Incorporated Top agencies Navy (Department of the Navy)	$493,107	<0.1%	Rank history: #34 in FY2021, #67 in FY2023 and not on the FY2024–FY2025 lists; down 3 since FY2021.
38	K2 Manufacturing, Inc. Top agencies Navy (Department of the Navy)	$481,500	<0.1%	Rank history: not on the FY2021 list, #94 in FY2023 and not on the FY2024–FY2025 lists; new.
39	Bay Associates Group LLC Top agencies WHS (DOD Washington Headquarters Service)	$467,090	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
40	UNI Corporation Top agencies Navy (Department of the Navy)	$466,590	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
41	Vapor Power International, LLC Top agencies Navy (Department of the Navy)	$460,441	<0.1%	Rank history: not on the FY2021 list, #71 in FY2023 and not on the FY2024–FY2025 lists; new.
42	Jgils, LLC Top agencies DLA (Defense Logistics Agency)	$457,786	<0.1%	Rank history: #28 in FY2021, #28 in FY2023, #22 in FY2024 and #12 in FY2025; down 14 since FY2021.
43	Phoenix Trading Inc. Top agencies DLA (Defense Logistics Agency)	$456,393	<0.1%	Rank history: #31 in FY2021, #21 in FY2023, #21 in FY2024 and #22 in FY2025; down 12 since FY2021.
44	Brighton Cromwell LLC Top agencies DLA (Defense Logistics Agency)	$450,916	<0.1%	Rank history: #14 in FY2021 and not on the FY2023–FY2025 lists; down 30 since FY2021.
45	AQW Inc. Top agencies DLA (Defense Logistics Agency)	$449,434	<0.1%	Rank history: #43 in FY2021, #52 in FY2023, #58 in FY2024 and #46 in FY2025; down 2 since FY2021.
46	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.
47	Danaher Corporation Through Pall Aeropower Corporation Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$435,979	<0.1%	Rank history: #61 in FY2021, #30 in FY2023, #75 in FY2024 and not on the FY2025 list; up 14 since FY2021.
48	Tate Andale, LLC Top agencies Navy (Department of the Navy)	$431,260	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
49	Xchanger Manufacturing Corporation Top agencies DLA (Defense Logistics Agency)	$418,500	<0.1%	Rank history: #33 in FY2021, #80 in FY2023 and not on the FY2024–FY2025 lists; down 16 since FY2021.
50	Bollinger Shipyards Inc Through Chand, L.L.C. Top agencies DLA (Defense Logistics Agency)	$414,752	<0.1%	Rank history: #15 in FY2021, #36 in FY2023 and not on the FY2024–FY2025 lists; down 35 since FY2021.
51	General Atomic Technologies Corporation Through General Atomics Top agencies USUHS (DOD Uniformed Services University of the Health Sciences)	$413,310	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
52	Government of the United States 5 awardees, including Federal Prison Industries, Inc. Top agencies DOJ (Department of Justice) VA (Department of Veterans Affairs) USDA (Department of Agriculture)	$412,762	<0.1%	Rank history: #73 in FY2021, #61 in FY2023, #42 in FY2024 and #36 in FY2025; up 21 since FY2021.
53	Graham Corp Top agencies Navy (Department of the Navy)	$411,559	<0.1%	Rank history: not on the FY2021 list, #43 in FY2023, #74 in FY2024 and #19 in FY2025; up 253 since FY2021.
54	Patriot Mechanical, LLC Top agencies USAF (Department of the Air Force)	$381,979	<0.1%	Rank history: #47 in FY2021 and not on the FY2023–FY2025 lists; down 7 since FY2021.
55	Brimhall Industrial Inc. Top agencies DOI (Department of the Interior)	$376,426	<0.1%	Rank history: #41 in FY2021 and not on the FY2023–FY2025 lists; down 14 since FY2021.
56	Filtration Group Corporation Through Molecular Products Inc. Top agencies DLA (Defense Logistics Agency)	$371,800	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 439 since FY2021.
57	Aantilia LLC Top agencies DOJ (Department of Justice) USAF (Department of the Air Force) Navy (Department of the Navy)	$348,830	<0.1%	Rank history: #49 in FY2021, not on the FY2023 list, #95 in FY2024 and not on the FY2025 list; down 8 since FY2021.
58	Lynchburg Air Preheater Corporation Top agencies Army (Department of the Army)	$331,832	<0.1%	Rank history: #84 in FY2021, not on the FY2023 list, #25 in FY2024 and #55 in FY2025; up 26 since FY2021.
59	STS Operating, Inc. Top agencies Army (Department of the Army)	$329,072	<0.1%	Rank history: #57 in FY2021 and not on the FY2023–FY2025 lists; down 2 since FY2021.
60	Unimex Corporation Through Paragon Defense Solutions Inc. Top agencies DLA (Defense Logistics Agency)	$326,500	<0.1%	Rank history: #58 in FY2021 and not on the FY2023–FY2025 lists; down 2 since FY2021.
61	Triman Industries Inc. 2 awardees, including Brighton Cromwell LLC Top agencies DLA (Defense Logistics Agency)	$318,872	<0.1%	Rank history: #39 in FY2021, #16 in FY2023, #26 in FY2024 and #29 in FY2025; down 22 since FY2021.
62	Native Instinct LLC Top agencies VA (Department of Veterans Affairs)	$318,801	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
63	Machine Tool Marketing Inc. Top agencies USAF (Department of the Air Force)	$313,507	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
64	ISA (Wyoming) Corp Top agencies Navy (Department of the Navy)	$307,869	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 63 since FY2021.
65	Johnson Controls Security Solutions LLC 2 awardees, including Johnson Controls, Inc. and Johnson Controls Navy Systems, LLC Top agencies DOS (Department of State) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$302,672	<0.1%	Rank history: #60 in FY2021, not on the FY2023 list, #89 in FY2024 and not on the FY2025 list; down 5 since FY2021.
66	S I T Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) DHS (Department of Homeland Security)	$299,020	<0.1%	Rank history: #21 in FY2021, #20 in FY2023, #23 in FY2024 and #78 in FY2025; down 45 since FY2021.
67	Hyspan Precision Products, Inc. Top agencies Navy (Department of the Navy)	$298,002	<0.1%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #58 in FY2025; new.
68	Wartsila Defense Inc. Through Defense Maritime Solutions, Inc. Top agencies Navy (Department of the Navy)	$284,454	<0.1%	Rank history: #65 in FY2021 and not on the FY2023–FY2025 lists; down 3 since FY2021.
69	Ampco-Pittsburgh Corporation 2 awardees, including Air & Liquid Systems Corporation Top agencies Navy (Department of the Navy) Smithsonian (Smithsonian Institution)	$282,290	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
70	American Engineering Corporation Top agencies Navy (Department of the Navy)	$269,644	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 253 since FY2021.
71	RIX Industries Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$262,893	<0.1%	Rank history: not on the FY2021 list, #78 in FY2023 and not on the FY2024–FY2025 lists; new.
72	DSA Acquisition Company, LLC Top agencies HHS (Department of Health and Human Services)	$245,400	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
73	Babcock Power Inc. Through Thermal Engineering International (USA) Inc. Top agencies DHS (Department of Homeland Security)	$243,351	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
74	Treadwell Corporation (Delaware) Top agencies Navy (Department of the Navy)	$240,600	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
75	Fluidyne Corporation Top agencies Navy (Department of the Navy)	$238,776	<0.1%	Rank history: #90 in FY2021, not on the FY2023 list, #81 in FY2024 and not on the FY2025 list; up 15 since FY2021.
76	Dutch Valley Supply Co. Top agencies DLA (Defense Logistics Agency)	$235,324	<0.1%	Rank history: #70 in FY2021, #45 in FY2023, not on the FY2024 list and #93 in FY2025; down 6 since FY2021.
77	General Aire Systems, Inc. Top agencies Navy (Department of the Navy)	$232,356	<0.1%	Rank history: not on the FY2021 list, #98 in FY2023 and not on the FY2024–FY2025 lists; new.
78	Burhani Enterprises Inc. Top agencies DLA (Defense Logistics Agency)	$226,095	<0.1%	Rank history: not on the FY2021 list, #41 in FY2023, not on the FY2024 list and #44 in FY2025; up 38 since FY2021.
79	Adirondack Electronics Inc. Top agencies Navy (Department of the Navy)	$221,964	<0.1%	Rank history: #74 in FY2021, not on the FY2023 list, #92 in FY2024 and not on the FY2025 list; down 5 since FY2021.
80	Integrated Procurement Technologies Top agencies Navy (Department of the Navy)	$219,274	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
81	Maxim Evaporators of America, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$219,235	<0.1%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #52 in FY2025; up 53 since FY2021.
82	Boyd Corporation (WOBURN) Inc Top agencies DLA (Defense Logistics Agency)	$214,981	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 97 since FY2021.
83	MCO Solutions, Inc. Top agencies DLA (Defense Logistics Agency)	$209,275	<0.1%	Rank history: not on the FY2021 list, not on the FY2023 list, #79 in FY2024 and #69 in FY2025; new.
84	Sandlapper Controls, Inc. Top agencies VA (Department of Veterans Affairs)	$205,060	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
85	R.p. Fedder Industrial, LLC Top agencies VA (Department of Veterans Affairs)	$199,900	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
86	Abatement Technologies, Inc. Top agencies VA (Department of Veterans Affairs)	$197,589	<0.1%	Rank history: #66 in FY2021 and not on the FY2023–FY2025 lists; down 20 since FY2021.
87	Phoenix Systems Engineering Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) Navy (Department of the Navy)	$197,451	<0.1%	Rank history: #32 in FY2021, #68 in FY2023, #37 in FY2024 and #37 in FY2025; down 55 since FY2021.
88	Skovira Machine Co Top agencies Navy (Department of the Navy)	$191,882	<0.1%	Rank history: not on the FY2021 list, not on the FY2023–FY2024 lists and #41 in FY2025; up 111 since FY2021.
89	General Nuclear Corp Top agencies Navy (Department of the Navy)	$191,706	<0.1%	Rank history: #76 in FY2021, #92 in FY2023 and not on the FY2024–FY2025 lists; down 13 since FY2021.
90	Molecular Products Inc. Top agencies DLA (Defense Logistics Agency)	$191,400	<0.1%	Rank history: #42 in FY2021 and not on the FY2023–FY2025 lists; down 48 since FY2021.
91	Pace Contracting LLC Top agencies DOI (Department of the Interior) HHS (Department of Health and Human Services)	$186,000	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 245 since FY2021.
92	Direct Line, Inc. Top agencies DLA (Defense Logistics Agency)	$185,090	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
93	Duroair Technologies USA Inc. Top agencies Army (Department of the Army)	$179,045	<0.1%	Rank history: not on the FY2021 list, not on the FY2023 list, #31 in FY2024 and not on the FY2025 list; new.
94	3Kpc, Inc. Top agencies DOL (Department of Labor)	$176,900	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
95	B & H International LLC Top agencies Navy (Department of the Navy)	$174,474	<0.1%	Rank history: not on the FY2021 list, not on the FY2023 list, #55 in FY2024 and not on the FY2025 list; new.
96	MTA Company, Inc. Top agencies USAF (Department of the Air Force)	$171,445	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
97	Dreamfind, Inc. Top agencies DLA (Defense Logistics Agency)	$169,396	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; up 214 since FY2021.
98	Firelake Construction Inc. Top agencies USDA (Department of Agriculture)	$159,998	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
99	Air Filtration Holdings LLC Through Robovent Solutions Group Inc. Top agencies Army (Department of the Army)	$154,760	<0.1%	Rank history: not on the FY2021 list and not on the FY2023–FY2025 lists; new.
100	U.s.a. Spares Inc. Top agencies Navy (Department of the Navy)	$153,035	<0.1%	Rank history: #99 in FY2021 and not on the FY2023–FY2025 lists; down 1 since FY2021.

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100 of 493 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC 44

Code	Net obligations	Largest contractor
4470 Nuclear Reactors	$3,920,617,668	Bechtel Corp
4420 Heat Exchangers and Steam Condensers	$33,211,034	Enterprise Cabling, Inc.
4460 Air Purification Equipment	$33,041,826	Cepeda Associates, Inc.
4410 Industrial Boilers	$9,525,565	K2 Contracting Group, LLC
4440 Driers, Dehydrators, and Anhydrators	$5,773,899	Caliber Sales Engineering Inc.
4430 Industrial Furnaces, Kilns, Lehrs, and Ovens	$3,914,034	J Kokolakis Contracting 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 $4.06 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 PSC 44 contractors in FY2022?

1. Bechtel Corp ($2.12B), 2. Fluor Corporation ($1.72B), 3. General Dynamics Corporation ($40.5M), 4. Westinghouse Electric Company LLC ($21.9M), 5. Enterprise Cabling, Inc. ($18.1M), 6. Cepeda Associates, Inc. ($13.9M), 7. Huntington Ingalls Industries, Inc. ($10.5M), 8. RTX Corporation ($5.46M), 9. Aqua-Chem, Inc. ($2.27M), 10. Gnap LLC ($2.26M).

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