Top 100 Contractors in NAICS 33631: Motor Vehicle Gasoline Engine and Engine Parts Manufacturing, FY2023

Name: Top 100 Contractors in NAICS 33631: Motor Vehicle Gasoline Engine and Engine Parts Manufacturing, FY2023
Creator: GovTribe
License: https://creativecommons.org/licenses/by/4.0/

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

The top 10 won 30% of FY2023 NAICS 33631 contract dollars

Contract obligations: $51,331,745 Net of deobligations, by contracts coded NAICS 33631 or a code under it
Contractors: 497 Parent companies with an obligation
Largest contractor: Fairbanks Morse LLC $3.89 million, 7.1% of obligations
Data as of: Oct 14, 2026

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

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Fairbanks Morse LLC 2 awardees Top agencies Navy (Department of the Navy)	$3,890,165	7.1%	Rank history: not on the FY2021 list, #17 in FY2022, #40 in FY2024 and not on the FY2025 list; up 16 since FY2022.
2	Am General LLC 2 awardees Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$2,485,276	4.5%	Rank history: not on the FY2021 list, #1 in FY2022, #18 in FY2024 and not on the FY2025 list; down 1 since FY2022.
3	Onodi Tool & Engineering Co Top agencies Army (Department of the Army)	$1,643,092	3.0%	Rank history: not on the FY2021 list, #29 in FY2022 and not on the FY2024–FY2025 lists; up 26 since FY2022.
4	AIL Corporation Through Ambac International Corporation Top agencies Army (Department of the Army)	$1,518,330	2.8%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
5	Holman Enterprises, Inc. Through Holman Parts Distribution, Inc. Top agencies DOI (Department of the Interior) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$1,433,777	2.6%	Rank history: #5 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 193 since FY2022.
6	Management Consulting Inc. Through Mancon LLC Top agencies Navy (Department of the Navy)	$1,230,000	2.2%	Rank history: not on the FY2021–FY2022 lists, #5 in FY2024 and #20 in FY2025; new.
7	Blue Cord Logistic Strategies Inc. Top agencies DLA (Defense Logistics Agency)	$1,089,617	2.0%	Rank history: not on the FY2021–FY2022 lists, #12 in FY2024 and #32 in FY2025; up 122 since FY2022.
8	Ruta Supplies Inc. Top agencies DLA (Defense Logistics Agency)	$1,031,062	1.9%	Rank history: #23 in FY2021, #16 in FY2022, #14 in FY2024 and #62 in FY2025; up 8 since FY2022.
9	Bollinger Shipyards Inc Through Chand, L.L.C. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,022,159	1.9%	Rank history: #14 in FY2021, #15 in FY2022 and not on the FY2024–FY2025 lists; up 6 since FY2022.
10	Triman Industries Inc. 2 awardees, including Brighton Cromwell LLC Top agencies DLA (Defense Logistics Agency)	$844,442	1.5%	Rank history: #22 in FY2021, #14 in FY2022, #38 in FY2024 and #13 in FY2025; up 4 since FY2022.
11	Fairlane Tool Company, Inc. Top agencies Army (Department of the Army)	$843,696	1.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
12	Marotta Controls Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$815,285	1.5%	Rank history: #17 in FY2021, #50 in FY2022, #15 in FY2024 and #28 in FY2025; up 38 since FY2022.
13	Dutch Valley Supply Co. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$782,283	1.4%	Rank history: #98 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 264 since FY2022.
14	Esco Technologies Inc. Through Vacco Industries Top agencies DLA (Defense Logistics Agency)	$703,758	1.3%	Rank history: #21 in FY2021, #9 in FY2022, #23 in FY2024 and #17 in FY2025; down 5 since FY2022.
15	Marvin Engineering Co, Inc. 2 awardees, including Marvin Land Systems, Inc. and Flyer Defense, LLC Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$696,341	1.3%	Rank history: not on the FY2021–FY2022 lists, #4 in FY2024 and #14 in FY2025; up 435 since FY2022.
16	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency)	$652,617	1.2%	Rank history: #8 in FY2021, #7 in FY2022, #9 in FY2024 and #16 in FY2025; down 9 since FY2022.
17	Jgils, LLC Top agencies DLA (Defense Logistics Agency)	$644,328	1.2%	Rank history: #19 in FY2021, #47 in FY2022, #10 in FY2024 and #7 in FY2025; up 30 since FY2022.
18	ECI Defense Group, Inc. 2 awardees Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$593,909	1.1%	Rank history: #79 in FY2021, #96 in FY2022, #6 in FY2024 and #21 in FY2025; up 78 since FY2022.
19	Pioneer Industries, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$592,140	1.1%	Rank history: #12 in FY2021, #13 in FY2022, #22 in FY2024 and #36 in FY2025; down 6 since FY2022.
20	Turbo Systems US Inc Through Accelleron US Inc. Top agencies Navy (Department of the Navy)	$577,500	1.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
21	Stewart & Stevenson Fdda LLC Through Engine Systems, Inc. Top agencies Navy (Department of the Navy)	$552,955	1.0%	Rank history: not on the FY2021 list, #5 in FY2022 and not on the FY2024–FY2025 lists; down 16 since FY2022.
22	Melton Sales & Service Top agencies Navy (Department of the Navy) Army (Department of the Army) DLA (Defense Logistics Agency)	$536,848	1.0%	Rank history: not on the FY2021–FY2022 lists, #21 in FY2024 and #81 in FY2025; up 106 since FY2022.
23	Heico Aerospace Corporat Through Robertson Fuel Systems, L.L.C. Top agencies Army (Department of the Army)	$496,622	0.9%	Rank history: #71 in FY2021, not on the FY2022 list, #25 in FY2024 and #15 in FY2025; up 107 since FY2022.
24	Hupp & Associates Inc. Top agencies DLA (Defense Logistics Agency)	$454,307	0.8%	Rank history: not on the FY2021–FY2022 lists, #32 in FY2024 and not on the FY2025 list; up 185 since FY2022.
25	Howden American Fan Company Top agencies Navy (Department of the Navy)	$451,680	0.8%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
26	L3Harris Technologies, Inc. 4 awardees, including L3 Technologies, Inc. Top agencies DLA (Defense Logistics Agency)	$443,624	0.8%	Rank history: #63 in FY2021, #30 in FY2022 and not on the FY2024–FY2025 lists; up 4 since FY2022.
27	Fincantieri Marine Systems North America Inc. Top agencies DLA (Defense Logistics Agency)	$438,956	0.8%	Rank history: #10 in FY2021, #10 in FY2022, #30 in FY2024 and not on the FY2025 list; down 17 since FY2022.
28	Crane Co Through Hydro-Aire Aerospace Corp Top agencies DLA (Defense Logistics Agency)	$438,740	0.8%	Rank history: #58 in FY2021, #61 in FY2022 and not on the FY2024–FY2025 lists; up 33 since FY2022.
29	Southern Automotive Wholesalers, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$422,127	0.8%	Rank history: #73 in FY2021, #41 in FY2022, #65 in FY2024 and #4 in FY2025; up 12 since FY2022.
30	Martin Military Inc. Top agencies DLA (Defense Logistics Agency)	$381,452	0.7%	Rank history: not on the FY2021–FY2022 lists, #69 in FY2024 and not on the FY2025 list; up 92 since FY2022.
31	Global Logistics Strategies Inc. Top agencies DLA (Defense Logistics Agency)	$373,925	0.7%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 81 since FY2022.
32	Hawkeye Innovation LLC Top agencies DLA (Defense Logistics Agency)	$363,817	0.7%	Rank history: not on the FY2021 list, #40 in FY2022 and not on the FY2024–FY2025 lists; up 8 since FY2022.
33	C E Niehoff & Co Top agencies DLA (Defense Logistics Agency)	$363,243	0.7%	Rank history: #78 in FY2021, #18 in FY2022, #37 in FY2024 and #54 in FY2025; down 15 since FY2022.
34	Prime Mover Holdings LLC 2 awardees, including Motor-Services Hugo Stamp, Inc. Top agencies DLA (Defense Logistics Agency)	$358,962	0.7%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 201 since FY2022.
35	Worldwide Equipment Enterprises Inc. Through Worldwide Equipment Inc. Top agencies DLA (Defense Logistics Agency)	$338,004	0.6%	Rank history: #64 in FY2021, #94 in FY2022 and not on the FY2024–FY2025 lists; up 59 since FY2022.
36	Transaero, Inc. Top agencies DLA (Defense Logistics Agency)	$329,298	0.6%	Rank history: #42 in FY2021, #21 in FY2022, #24 in FY2024 and not on the FY2025 list; down 15 since FY2022.
37	D.c.k Travel & Tours Co., Ltd. Top agencies DOS (Department of State)	$323,938	0.6%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
38	Military Supply Company LLC 2 awardees Top agencies DLA (Defense Logistics Agency)	$302,972	0.6%	Rank history: not on the FY2021 list, #63 in FY2022, #88 in FY2024 and not on the FY2025 list; up 25 since FY2022.
39	PCX Inc Top agencies DLA (Defense Logistics Agency)	$300,874	0.5%	Rank history: not on the FY2021–FY2022 lists, #34 in FY2024 and #65 in FY2025; up 146 since FY2022.
40	Filtration Group Corporation Through Facet (Oklahoma) LLC Top agencies DLA (Defense Logistics Agency)	$297,672	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
41	Dela Technology Corporation Top agencies DLA (Defense Logistics Agency)	$296,430	0.5%	Rank history: #25 in FY2021, #31 in FY2022, #61 in FY2024 and #26 in FY2025; down 10 since FY2022.
42	Science Applications International Corporation Through Asrc Federal Facilities Logistics, LLC Top agencies DLA (Defense Logistics Agency)	$294,353	0.5%	Rank history: #26 in FY2021, #52 in FY2022 and not on the FY2024–FY2025 lists; up 10 since FY2022.
43	Zhongshan Broad-Ocean Motor Co. Ltd Through Prestolite Electric Inc. Top agencies DLA (Defense Logistics Agency)	$290,240	0.5%	Rank history: not on the FY2021 list, #39 in FY2022, #44 in FY2024 and not on the FY2025 list; down 4 since FY2022.
44	Teledyne Technologies Incorporated Through Teledyne Instruments Inc. Top agencies Navy (Department of the Navy)	$265,428	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
45	Boston Scientific Corp Through Brake Supply Company, Inc. Top agencies Army (Department of the Army)	$262,996	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
46	City Link Transportation (Cambodia) Co., Ltd. Top agencies DOS (Department of State)	$259,291	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
47	Zemarc Corporation Top agencies DLA (Defense Logistics Agency)	$257,934	0.5%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 153 since FY2022.
48	General Motors Company Top agencies DLA (Defense Logistics Agency)	$255,851	0.5%	Rank history: #24 in FY2021, #34 in FY2022, #43 in FY2024 and not on the FY2025 list; down 14 since FY2022.
49	Aero TEC Laboratories Inc. Top agencies DLA (Defense Logistics Agency)	$250,666	0.5%	Rank history: #61 in FY2021, #35 in FY2022, not on the FY2024 list and #96 in FY2025; down 14 since FY2022.
50	FBC Enterprises LLC Top agencies DLA (Defense Logistics Agency)	$249,544	0.5%	Rank history: #43 in FY2021, #69 in FY2022 and not on the FY2024–FY2025 lists; up 19 since FY2022.
51	South-TEK Systems LLC Through Aviation, Power & Marine, LLC Top agencies Navy (Department of the Navy)	$248,837	0.5%	Rank history: #41 in FY2021, #27 in FY2022 and not on the FY2024–FY2025 lists; down 24 since FY2022.
52	CME Arma, Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$247,340	0.5%	Rank history: #9 in FY2021, not on the FY2022 list, not on the FY2024 list and #59 in FY2025; up 68 since FY2022.
53	Black Bay Aerospace LLC Top agencies DLA (Defense Logistics Agency)	$244,055	0.4%	Rank history: not on the FY2021 list, #77 in FY2022, #35 in FY2024 and not on the FY2025 list; up 24 since FY2022.
54	R & M Government Services Inc. Top agencies DLA (Defense Logistics Agency)	$236,599	0.4%	Rank history: not on the FY2021–FY2022 lists, #100 in FY2024 and not on the FY2025 list; up 265 since FY2022.
55	Stauffer Diesel, Inc. Top agencies USAF (Department of the Air Force)	$225,465	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
56	Augusta Engine Parts, Inc. Top agencies DLA (Defense Logistics Agency)	$224,440	0.4%	Rank history: not on the FY2021 list, #57 in FY2022 and not on the FY2024–FY2025 lists; up 1 since FY2022.
57	Hydraulics International, Inc. Top agencies DLA (Defense Logistics Agency)	$219,631	0.4%	Rank history: #47 in FY2021, #83 in FY2022, not on the FY2024 list and #60 in FY2025; up 26 since FY2022.
58	Mahle - Stiftung Gesellschaft MIT Beschrankter Haftung Through Mahle Industrial Thermal Systems America LP Top agencies DLA (Defense Logistics Agency)	$214,600	0.4%	Rank history: not on the FY2021 list, #87 in FY2022 and not on the FY2024–FY2025 lists; up 29 since FY2022.
59	Linmarr Associates, Inc. Top agencies DLA (Defense Logistics Agency)	$212,760	0.4%	Rank history: not on the FY2021 list, #11 in FY2022, not on the FY2024 list and #33 in FY2025; down 48 since FY2022.
60	T & M Distributors, Inc. Top agencies Navy (Department of the Navy)	$211,243	0.4%	Rank history: #6 in FY2021, #4 in FY2022 and not on the FY2024–FY2025 lists; down 56 since FY2022.
61	Megabite Electronics, Inc. Top agencies DLA (Defense Logistics Agency)	$210,987	0.4%	Rank history: #34 in FY2021, #48 in FY2022 and not on the FY2024–FY2025 lists; down 13 since FY2022.
62	Porobond Products, LLC Top agencies DLA (Defense Logistics Agency)	$209,432	0.4%	Rank history: #85 in FY2021, #62 in FY2022, not on the FY2024 list and #95 in FY2025; unchanged since FY2022.
63	Stealth Supply Inc Top agencies DLA (Defense Logistics Agency)	$201,738	0.4%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
64	Statz Corp Top agencies DLA (Defense Logistics Agency)	$197,863	0.4%	Rank history: not on the FY2021 list, #75 in FY2022 and not on the FY2024–FY2025 lists; up 11 since FY2022.
65	Windward Enterprises, LLC Top agencies DLA (Defense Logistics Agency)	$191,670	0.4%	Rank history: not on the FY2021 list, #65 in FY2022, #49 in FY2024 and #97 in FY2025; unchanged since FY2022.
66	Transdigm Group Incorporated 2 awardees, including Tactair Fluid Controls Inc. and Arkwin Industries, Inc. Top agencies DLA (Defense Logistics Agency)	$189,094	0.3%	Rank history: #13 in FY2021, #60 in FY2022 and not on the FY2024–FY2025 lists; down 6 since FY2022.
67	Area Diesel Service Inc. Top agencies DLA (Defense Logistics Agency)	$186,982	0.3%	Rank history: not on the FY2021 list, #44 in FY2022, not on the FY2024 list and #42 in FY2025; down 23 since FY2022.
68	Advanced Products Services Inc. Top agencies DLA (Defense Logistics Agency)	$183,779	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 90 since FY2022.
69	Essex Industries Inc. Top agencies DLA (Defense Logistics Agency)	$180,496	0.3%	Rank history: #7 in FY2021, #25 in FY2022, #28 in FY2024 and not on the FY2025 list; down 44 since FY2022.
70	Echelon Supply and Service, Inc. Top agencies DLA (Defense Logistics Agency)	$177,021	0.3%	Rank history: not on the FY2021 list, #98 in FY2022, #46 in FY2024 and not on the FY2025 list; up 28 since FY2022.
71	Badger Truck and Automotive Group, Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$169,277	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
72	Woodward Governor Company 2 awardees, including Woodward HRT Inc. and Woodward, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$165,980	0.3%	Rank history: #29 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 37 since FY2022.
73	Phoenix Trading Inc. Top agencies DLA (Defense Logistics Agency)	$160,896	0.3%	Rank history: #76 in FY2021, #64 in FY2022 and not on the FY2024–FY2025 lists; down 9 since FY2022.
74	Christian Jhoe Carrera Narvaez Top agencies DOS (Department of State)	$158,163	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
75	Gibraltar Group LLC Top agencies DOS (Department of State)	$154,698	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
76	The Dewey Electronics Corporation Top agencies DLA (Defense Logistics Agency)	$150,759	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 119 since FY2022.
77	Oshkosh Corp 2 awardees, including Oshkosh Defense LLC and JLG Industries, Inc. Top agencies DLA (Defense Logistics Agency)	$150,530	0.3%	Rank history: #3 in FY2021, #12 in FY2022, #7 in FY2024 and #67 in FY2025; down 65 since FY2022.
78	Direct Line, Inc. Top agencies DLA (Defense Logistics Agency)	$149,549	0.3%	Rank history: not on the FY2021 list, #79 in FY2022, #57 in FY2024 and not on the FY2025 list; up 1 since FY2022.
79	ESI Acquisition Corp. Through JA Moody LLC Top agencies DLA (Defense Logistics Agency)	$149,539	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 98 since FY2022.
80	Dante Valve Company Top agencies DLA (Defense Logistics Agency)	$147,510	0.3%	Rank history: #67 in FY2021, #76 in FY2022 and not on the FY2024–FY2025 lists; down 4 since FY2022.
81	DRS Naval Power Systems Inc. Top agencies DLA (Defense Logistics Agency)	$146,046	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
82	Southeast Power Systems, Inc. Through Southeast Power Systems of Orlando Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$142,530	0.3%	Rank history: not on the FY2021 list, #37 in FY2022, #11 in FY2024 and not on the FY2025 list; down 45 since FY2022.
83	Airborne Supply Inc. Top agencies DLA (Defense Logistics Agency)	$140,604	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
84	S I T Corporation Top agencies DLA (Defense Logistics Agency)	$137,001	0.3%	Rank history: #16 in FY2021, not on the FY2022 list, #27 in FY2024 and #38 in FY2025; up 24 since FY2022.
85	Trader, S.A. De C.V. Top agencies DOS (Department of State)	$136,800	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
86	JDS International Inc. Top agencies DLA (Defense Logistics Agency)	$134,179	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
87	Octane Forklifts, Inc. Top agencies Army (Department of the Army)	$133,884	0.2%	Rank history: #83 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 26 since FY2022.
88	Falls Filtration Technologies, Inc. Top agencies DLA (Defense Logistics Agency)	$130,839	0.2%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #83 in FY2025; up 106 since FY2022.
89	SOK Kong Import Export Sokimex Co., Ltd. Top agencies DOS (Department of State)	$130,213	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 103 since FY2022.
90	American State Equipment Co Inc. Top agencies Army (Department of the Army)	$124,127	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
91	General Aviation Industries, Inc. Top agencies DLA (Defense Logistics Agency)	$122,010	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 54 since FY2022.
92	Larkos Packing and Distribution Inc. Top agencies DLA (Defense Logistics Agency)	$121,615	0.2%	Rank history: #68 in FY2021, #71 in FY2022, #47 in FY2024 and #37 in FY2025; down 21 since FY2022.
93	Neal Supply and Rental, LLC Top agencies DLA (Defense Logistics Agency)	$120,789	0.2%	Rank history: not on the FY2021–FY2022 lists, #62 in FY2024 and #99 in FY2025; new.
94	Leidos Holdings, Inc. Through Leidos, Inc. Top agencies DLA (Defense Logistics Agency)	$117,096	0.2%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #22 in FY2025; up 248 since FY2022.
95	Derbyshire Marine Products, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$116,440	0.2%	Rank history: #88 in FY2021, #73 in FY2022 and not on the FY2024–FY2025 lists; down 22 since FY2022.
96	Dreamfind, Inc. Top agencies DLA (Defense Logistics Agency)	$114,875	0.2%	Rank history: #53 in FY2021, #82 in FY2022 and not on the FY2024–FY2025 lists; down 14 since FY2022.
97	Patterson Cooney Inc. Top agencies DLA (Defense Logistics Agency)	$111,805	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 13 since FY2022.
98	Freightliner of Savannah, Inc. Top agencies DLA (Defense Logistics Agency)	$110,736	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
99	Hoosier Industrial Supply, Inc. Top agencies DLA (Defense Logistics Agency)	$110,270	0.2%	Rank history: #51 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 25 since FY2022.
100	Kayeyegee LLC Top agencies DOS (Department of State)	$107,980	0.2%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.

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100 of 497 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 33631

Code	Net obligations	Largest contractor
336310 Motor Vehicle Gasoline Engine and Engine Parts Manufacturing	$51,331,745	Fairbanks Morse LLC

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 $54.7 million 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 33631 contractors in FY2023?

1. Fairbanks Morse LLC ($3.89M), 2. Am General LLC ($2.49M), 3. Onodi Tool & Engineering Co ($1.64M), 4. AIL Corporation ($1.52M), 5. Holman Enterprises, Inc. ($1.43M), 6. Management Consulting Inc. ($1.23M), 7. Blue Cord Logistic Strategies Inc. ($1.09M), 8. Ruta Supplies Inc. ($1.03M), 9. Bollinger Shipyards Inc ($1.02M), 10. Triman Industries Inc. ($844K).

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