Top 100 Contractors in NAICS 33631: Motor Vehicle Gasoline Engine and Engine Parts Manufacturing, FY2021

Name: Top 100 Contractors in NAICS 33631: Motor Vehicle Gasoline Engine and Engine Parts Manufacturing, FY2021
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2020 – Sep 30, 2021 Code page on GovTribe

The top 10 won 39% of FY2021 NAICS 33631 contract dollars

Contract obligations: $40,598,948 Net of deobligations, by contracts coded NAICS 33631 or a code under it
Contractors: 493 Parent companies with an obligation
Largest contractor: Caterpillar Inc. $6.35 million, 14.8% 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	Caterpillar Inc. Top agencies Army (Department of the Army)	$6,349,245	14.8%	Rank history: not on the FY2022–FY2025 lists; up 104 since FY2020.
2	Sargent Aerospace & Defense LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$2,116,388	4.9%	Rank history: #92 in FY2022, not on the FY2023 list, #36 in FY2024 and not on the FY2025 list; up 30 since FY2020.
3	Oshkosh Corp 2 awardees, including Oshkosh Defense LLC and JLG Industries, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,307,539	3.0%	Rank history: #12 in FY2022, #77 in FY2023, #7 in FY2024 and #67 in FY2025; up 3 since FY2020.
4	EOS Inc. Top agencies DLA (Defense Logistics Agency)	$1,231,298	2.9%	Rank history: not on the FY2022–FY2023 lists, #26 in FY2024 and #71 in FY2025; unchanged since FY2020.
5	Holman Enterprises, Inc. Through Holman Parts Distribution, Inc. Top agencies DOI (Department of the Interior) USAF (Department of the Air Force)	$1,213,885	2.8%	Rank history: not on the FY2022 list, #5 in FY2023 and not on the FY2024–FY2025 lists; up 29 since FY2020.
6	T & M Distributors, Inc. Top agencies Navy (Department of the Navy)	$1,111,142	2.6%	Rank history: #4 in FY2022, #60 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2020.
7	Essex Industries Inc. 2 awardees Top agencies DLA (Defense Logistics Agency)	$1,004,015	2.3%	Rank history: #25 in FY2022, #69 in FY2023, #28 in FY2024 and not on the FY2025 list; up 60 since FY2020.
8	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$971,751	2.3%	Rank history: #7 in FY2022, #16 in FY2023, #9 in FY2024 and #16 in FY2025; up 5 since FY2020.
9	CME Arma, Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$846,512	2.0%	Rank history: not on the FY2022 list, #52 in FY2023, not on the FY2024 list and #59 in FY2025; up 333 since FY2020.
10	Fincantieri Marine Systems North America Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$720,945	1.7%	Rank history: #10 in FY2022, #27 in FY2023, #30 in FY2024 and not on the FY2025 list; up 19 since FY2020.
11	Southeast Power Systems of Orlando Inc. Top agencies Army (Department of the Army)	$704,100	1.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
12	Pioneer Industries, LLC Top agencies DLA (Defense Logistics Agency)	$684,097	1.6%	Rank history: #13 in FY2022, #19 in FY2023, #22 in FY2024 and #36 in FY2025; up 40 since FY2020.
13	Transdigm Group Incorporated 3 awardees, including Tactair Fluid Controls Inc., Pneudraulics, Inc. and Arkwin Industries, Inc. Top agencies DLA (Defense Logistics Agency)	$617,191	1.4%	Rank history: #60 in FY2022, #66 in FY2023 and not on the FY2024–FY2025 lists; up 8 since FY2020.
14	Bollinger Shipyards Inc Through Chand, L.L.C. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$616,610	1.4%	Rank history: #15 in FY2022, #9 in FY2023 and not on the FY2024–FY2025 lists; up 24 since FY2020.
15	North American Fuel Tanks, Inc. Top agencies DLA (Defense Logistics Agency)	$615,870	1.4%	Rank history: not on the FY2022–FY2023 lists, #16 in FY2024 and #11 in FY2025; down 12 since FY2020.
16	S I T Corporation Top agencies DLA (Defense Logistics Agency)	$606,926	1.4%	Rank history: not on the FY2022 list, #84 in FY2023, #27 in FY2024 and #38 in FY2025; up 12 since FY2020.
17	Marotta Controls Inc. Top agencies DLA (Defense Logistics Agency)	$605,239	1.4%	Rank history: #50 in FY2022, #12 in FY2023, #15 in FY2024 and #28 in FY2025; up 66 since FY2020.
18	Fluid Power, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$527,878	1.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
19	Jgils, LLC Top agencies DLA (Defense Logistics Agency)	$504,098	1.2%	Rank history: #47 in FY2022, #17 in FY2023, #10 in FY2024 and #7 in FY2025; up 3 since FY2020.
20	Westsim Engineering, Inc. Top agencies DLA (Defense Logistics Agency)	$492,870	1.1%	Rank history: not on the FY2022–FY2025 lists; up 212 since FY2020.
21	Esco Technologies Inc. Through Vacco Industries Top agencies DLA (Defense Logistics Agency)	$474,888	1.1%	Rank history: #9 in FY2022, #14 in FY2023, #23 in FY2024 and #17 in FY2025; down 4 since FY2020.
22	Triman Industries Inc. Top agencies DLA (Defense Logistics Agency)	$461,113	1.1%	Rank history: #14 in FY2022, #10 in FY2023, #38 in FY2024 and #13 in FY2025; down 6 since FY2020.
23	Ruta Supplies Inc. Top agencies DLA (Defense Logistics Agency)	$458,657	1.1%	Rank history: #16 in FY2022, #8 in FY2023, #14 in FY2024 and #62 in FY2025; up 80 since FY2020.
24	General Motors Company Top agencies DLA (Defense Logistics Agency)	$433,124	1.0%	Rank history: #34 in FY2022, #48 in FY2023, #43 in FY2024 and not on the FY2025 list; up 41 since FY2020.
25	Dela Technology Corporation Top agencies DLA (Defense Logistics Agency)	$428,760	1.0%	Rank history: #31 in FY2022, #41 in FY2023, #61 in FY2024 and #26 in FY2025; down 5 since FY2020.
26	Science Applications International Corporation Through Asrc Federal Facilities Logistics, LLC Top agencies DLA (Defense Logistics Agency)	$406,191	0.9%	Rank history: #52 in FY2022, #42 in FY2023 and not on the FY2024–FY2025 lists; down 12 since FY2020.
27	VSE Corporation Through Wheeler Fleet Solutions, Co. Top agencies DLA (Defense Logistics Agency)	$395,330	0.9%	Rank history: #91 in FY2022 and not on the FY2023–FY2025 lists; up 28 since FY2020.
28	Argo Turboserve Corporation Top agencies DLA (Defense Logistics Agency)	$357,048	0.8%	Rank history: #72 in FY2022, not on the FY2023 list, #68 in FY2024 and not on the FY2025 list; up 73 since FY2020.
29	Woodward Governor Company 3 awardees, including Woodward, Inc. and Woodward HRT Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$328,939	0.8%	Rank history: not on the FY2022 list, #72 in FY2023 and not on the FY2024–FY2025 lists; up 110 since FY2020.
30	Aero-Dyne Supply Co., Inc. Top agencies DLA (Defense Logistics Agency)	$310,175	0.7%	Rank history: not on the FY2022–FY2025 lists; up 77 since FY2020.
31	Prestolite Electric Incorporated Top agencies DLA (Defense Logistics Agency)	$308,892	0.7%	Rank history: #43 in FY2022 and not on the FY2023–FY2025 lists; down 7 since FY2020.
32	Ohio Machinery Co 2 awardees Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security) Navy (Department of the Navy)	$304,753	0.7%	Rank history: not on the FY2022–FY2025 lists; up 140 since FY2020.
33	Engineered Machined Products, Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$270,554	0.6%	Rank history: not on the FY2022–FY2025 lists; up 84 since FY2020.
34	Megabite Electronics, Inc. Top agencies DLA (Defense Logistics Agency)	$268,625	0.6%	Rank history: #48 in FY2022, #61 in FY2023 and not on the FY2024–FY2025 lists; up 39 since FY2020.
35	Boyd Corporation (WOBURN) Inc Top agencies DLA (Defense Logistics Agency)	$268,019	0.6%	Rank history: #45 in FY2022 and not on the FY2023–FY2025 lists; up 225 since FY2020.
36	ARI Phoenix Inc. Top agencies Army (Department of the Army)	$249,993	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
37	Transupport Inc. Top agencies DLA (Defense Logistics Agency)	$233,100	0.5%	Rank history: not on the FY2022–FY2025 lists; up 130 since FY2020.
38	Jag Components, LLC Top agencies DLA (Defense Logistics Agency)	$224,810	0.5%	Rank history: not on the FY2022–FY2025 lists; up 93 since FY2020.
39	Derand Precision LLC Top agencies DLA (Defense Logistics Agency)	$221,595	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
40	Bukkehave Corporation A / S Through Bukkehave, Inc. Top agencies DOS (Department of State)	$218,862	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
41	South-TEK Systems LLC Through Aviation, Power & Marine, LLC Top agencies Navy (Department of the Navy)	$208,788	0.5%	Rank history: #27 in FY2022, #51 in FY2023 and not on the FY2024–FY2025 lists; down 14 since FY2020.
42	Transaero, Inc. Top agencies DLA (Defense Logistics Agency)	$207,373	0.5%	Rank history: #21 in FY2022, #36 in FY2023, #24 in FY2024 and not on the FY2025 list; up 67 since FY2020.
43	FBC Enterprises LLC Top agencies DLA (Defense Logistics Agency)	$197,152	0.5%	Rank history: #69 in FY2022, #50 in FY2023 and not on the FY2024–FY2025 lists; up 224 since FY2020.
44	Aarcorp Through AAR Supply Chain, Inc. Top agencies DLA (Defense Logistics Agency)	$189,486	0.4%	Rank history: not on the FY2022–FY2023 lists, #66 in FY2024 and not on the FY2025 list; up 27 since FY2020.
45	W. & O. Supply Inc. 2 awardees, including The Hiller Companies LLC Top agencies DLA (Defense Logistics Agency)	$171,923	0.4%	Rank history: not on the FY2022–FY2025 lists; up 193 since FY2020.
46	Danielson Engineering Top agencies Army (Department of the Army)	$167,213	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
47	Hydraulics International, Inc. Top agencies DLA (Defense Logistics Agency)	$167,086	0.4%	Rank history: #83 in FY2022, #57 in FY2023, not on the FY2024 list and #60 in FY2025; up 65 since FY2020.
48	Stealth Supply, Inc. Top agencies DLA (Defense Logistics Agency)	$160,874	0.4%	Rank history: not on the FY2022–FY2025 lists; up 32 since FY2020.
49	PCX Inc. Top agencies DLA (Defense Logistics Agency)	$153,534	0.4%	Rank history: not on the FY2022–FY2023 lists, #34 in FY2024 and #65 in FY2025; down 19 since FY2020.
50	Kyodo Shipping & Trading Corp USA Top agencies DLA (Defense Logistics Agency)	$151,628	0.4%	Rank history: #100 in FY2022 and not on the FY2023–FY2025 lists; up 41 since FY2020.
51	Hoosier Industrial Supply, Inc. Top agencies DLA (Defense Logistics Agency)	$147,681	0.3%	Rank history: not on the FY2022 list, #99 in FY2023 and not on the FY2024–FY2025 lists; up 35 since FY2020.
52	Lynn Electronics LLC Top agencies DLA (Defense Logistics Agency)	$143,985	0.3%	Rank history: #56 in FY2022 and not on the FY2023–FY2025 lists; up 2 since FY2020.
53	Dreamfind, Inc. Top agencies DLA (Defense Logistics Agency)	$143,576	0.3%	Rank history: #82 in FY2022, #96 in FY2023 and not on the FY2024–FY2025 lists; up 29 since FY2020.
54	Allied Defense Industries Inc. 2 awardees, including Allied Marine Services LLC Top agencies DLA (Defense Logistics Agency)	$142,289	0.3%	Rank history: not on the FY2022–FY2025 lists; up 15 since FY2020.
55	Scott Industrial Systems, Inc. Top agencies DLA (Defense Logistics Agency)	$136,879	0.3%	Rank history: #86 in FY2022 and not on the FY2023–FY2025 lists; up 45 since FY2020.
56	Industrial Painters Associates and Services Inc. Top agencies DOS (Department of State)	$133,106	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
57	Wmk, LLC Top agencies VA (Department of Veterans Affairs)	$125,718	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
58	Crane Co Through Hydro-Aire Aerospace Corp Top agencies DLA (Defense Logistics Agency)	$122,469	0.3%	Rank history: #61 in FY2022, #28 in FY2023 and not on the FY2024–FY2025 lists; up 27 since FY2020.
59	Calista Corp Through Brice Environmental Services Corporation Top agencies DOI (Department of the Interior)	$122,231	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
60	Melton Sales & Service Top agencies DLA (Defense Logistics Agency)	$121,043	0.3%	Rank history: not on the FY2022–FY2025 lists; up 29 since FY2020.
61	Aero TEC Laboratories Inc. Top agencies DLA (Defense Logistics Agency)	$120,933	0.3%	Rank history: #35 in FY2022, #49 in FY2023, not on the FY2024 list and #96 in FY2025; down 11 since FY2020.
62	All Safe Industries, Inc. Top agencies DLA (Defense Logistics Agency)	$111,774	0.3%	Rank history: #90 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
63	L3Harris Technologies, Inc. 3 awardees, including L3 Technologies, Inc. and L3Harris Maritime Power & Energy Solutions, Inc. Top agencies DLA (Defense Logistics Agency)	$110,918	0.3%	Rank history: #30 in FY2022, #26 in FY2023 and not on the FY2024–FY2025 lists; up 174 since FY2020.
64	Worldwide Equipment Enterprises Inc. Through Worldwide Equipment Inc. Top agencies DLA (Defense Logistics Agency)	$110,716	0.3%	Rank history: #94 in FY2022, #35 in FY2023 and not on the FY2024–FY2025 lists; up 74 since FY2020.
65	Griswold Industries Top agencies DLA (Defense Logistics Agency)	$109,950	0.3%	Rank history: #93 in FY2022 and not on the FY2023–FY2025 lists; up 91 since FY2020.
66	Toyota Otis, Inc. Top agencies USAID (US Agency for International Development)	$107,404	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
67	Dante Valve Company Top agencies DLA (Defense Logistics Agency)	$106,132	0.2%	Rank history: #76 in FY2022, #80 in FY2023 and not on the FY2024–FY2025 lists; up 49 since FY2020.
68	Larkos Packing and Distribution Inc. Top agencies DLA (Defense Logistics Agency)	$103,466	0.2%	Rank history: #71 in FY2022, #92 in FY2023, #47 in FY2024 and #37 in FY2025; up 55 since FY2020.
69	Lanzen, Incorporated Top agencies DLA (Defense Logistics Agency)	$97,230	0.2%	Rank history: #32 in FY2022 and not on the FY2023–FY2025 lists; down 44 since FY2020.
70	Usbid Incorporated Through Wbparts Inc. Top agencies DLA (Defense Logistics Agency)	$95,955	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
71	Heico Aerospace Corporat Through Seal Dynamics LLC Top agencies DLA (Defense Logistics Agency)	$94,336	0.2%	Rank history: not on the FY2022 list, #23 in FY2023, #25 in FY2024 and #15 in FY2025; down 15 since FY2020.
72	Pencoyd Iron Works, Inc. Top agencies DLA (Defense Logistics Agency)	$93,345	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
73	Southern Automotive Wholesalers, Inc. Top agencies DLA (Defense Logistics Agency)	$91,935	0.2%	Rank history: #41 in FY2022, #29 in FY2023, #65 in FY2024 and #4 in FY2025; up 68 since FY2020.
74	KLM Middle East General Trading L.l.c Top agencies Army (Department of the Army) DOS (Department of State)	$89,495	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
75	General Dynamics Corporation 2 awardees, including General Dynamics Land Systems - Canada Corporation and Electric Boat Corporation Top agencies DLA (Defense Logistics Agency)	$88,874	0.2%	Rank history: not on the FY2022–FY2025 lists; up 44 since FY2020.
76	Phoenix Trading Inc. Top agencies DLA (Defense Logistics Agency)	$87,730	0.2%	Rank history: #64 in FY2022, #73 in FY2023 and not on the FY2024–FY2025 lists; down 18 since FY2020.
77	Bromine Systems Inc. Top agencies DLA (Defense Logistics Agency)	$84,063	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
78	C E Niehoff & Co Top agencies DLA (Defense Logistics Agency)	$83,313	0.2%	Rank history: #18 in FY2022, #33 in FY2023, #37 in FY2024 and #54 in FY2025; down 60 since FY2020.
79	ECI Defense Group, Inc. Top agencies DLA (Defense Logistics Agency)	$82,188	0.2%	Rank history: not on the FY2022 list, #18 in FY2023, #6 in FY2024 and #21 in FY2025; up 18 since FY2020.
80	All Around Access, LLC Top agencies Army (Department of the Army)	$81,164	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
81	Ronald Bryan JR Top agencies Army (Department of the Army)	$80,340	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
82	DC Fabricators Inc. Top agencies DLA (Defense Logistics Agency)	$76,772	0.2%	Rank history: not on the FY2022–FY2024 lists and #88 in FY2025; up 105 since FY2020.
83	Octane Forklifts, Inc. Top agencies Army (Department of the Army)	$74,999	0.2%	Rank history: not on the FY2022 list, #87 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
84	New England Specialty Components, LLC Top agencies DLA (Defense Logistics Agency)	$74,515	0.2%	Rank history: not on the FY2022–FY2024 lists and #78 in FY2025; down 49 since FY2020.
85	Porobond Products, LLC Top agencies DLA (Defense Logistics Agency)	$74,086	0.2%	Rank history: #62 in FY2022, #62 in FY2023, not on the FY2024 list and #95 in FY2025; down 11 since FY2020.
86	Brighton Cromwell LLC Top agencies DLA (Defense Logistics Agency)	$72,929	0.2%	Rank history: not on the FY2022–FY2025 lists; down 74 since FY2020.
87	Grupo Q Honduras S.a. DE C.V. Top agencies DOS (Department of State)	$71,000	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
88	Derbyshire Marine Products, LLC Top agencies DLA (Defense Logistics Agency)	$70,018	0.2%	Rank history: #73 in FY2022, #95 in FY2023 and not on the FY2024–FY2025 lists; up 63 since FY2020.
89	Noresco LLC Through Kidde Technologies Inc. Top agencies DLA (Defense Logistics Agency)	$69,420	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
90	Seahorse Defense Supply, LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$69,244	0.2%	Rank history: not on the FY2022–FY2025 lists; down 18 since FY2020.
91	Bravo, Inc. Top agencies Army (Department of the Army)	$69,107	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
92	Dickran Ouzounian and Company Limited Top agencies DOS (Department of State)	$68,549	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
93	Tecmotiv (Usa), Inc. Top agencies DLA (Defense Logistics Agency)	$67,875	0.2%	Rank history: not on the FY2022–FY2023 lists, #2 in FY2024 and #6 in FY2025; new, not ranked in FY2020.
94	Fluid Mechanics LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$64,414	0.2%	Rank history: #51 in FY2022 and not on the FY2023–FY2025 lists; down 51 since FY2020.
95	Empire Avionics Corp. Top agencies DLA (Defense Logistics Agency)	$64,120	0.1%	Rank history: #99 in FY2022, not on the FY2023 list, #90 in FY2024 and not on the FY2025 list; up 175 since FY2020.
96	UEI XF4WYASD6BR4 Top agencies DOS (Department of State)	$62,780	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
97	Jamaica Bearings Co., Inc. 2 awardees Top agencies DLA (Defense Logistics Agency)	$62,596	0.1%	Rank history: not on the FY2022–FY2024 lists and #48 in FY2025; up 158 since FY2020.
98	Dutch Valley Supply Co. Top agencies DLA (Defense Logistics Agency)	$59,164	0.1%	Rank history: not on the FY2022 list, #13 in FY2023 and not on the FY2024–FY2025 lists; up 28 since FY2020.
99	Tecmotiv Corporation Through Tecmotiv (Usa), Inc. Top agencies DLA (Defense Logistics Agency)	$59,000	0.1%	Rank history: #2 in FY2022 and not on the FY2023–FY2025 lists; down 90 since FY2020.
100	RGI Inc. Top agencies DLA (Defense Logistics Agency)	$57,785	0.1%	Rank history: not on the FY2022–FY2025 lists; up 228 since FY2020.

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100 of 493 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	$40,598,948	Caterpillar 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 $42.9 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 2021 ran Oct 1, 2020 – Sep 30, 2021. 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 FY2020. "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 FY2020 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 FY2021?

1. Caterpillar Inc. ($6.35M), 2. Sargent Aerospace & Defense LLC ($2.12M), 3. Oshkosh Corp ($1.31M), 4. EOS Inc. ($1.23M), 5. Holman Enterprises, Inc. ($1.21M), 6. T & M Distributors, Inc. ($1.11M), 7. Essex Industries Inc. ($1M), 8. Kampi Components Co Inc. ($972K), 9. CME Arma, Inc. ($847K), 10. Fincantieri Marine Systems North America Inc. ($721K).

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