Top 100 Contractors in NAICS 336320: Motor Vehicle Electrical and Electronic Equipment Manufacturing, FY2021

Name: Top 100 Contractors in NAICS 336320: Motor Vehicle Electrical and Electronic Equipment 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 336320 contract dollars

Contract obligations: $67,866,130 Net of deobligations, by contracts coded NAICS 336320
Contractors: 482 Parent companies with an obligation
Largest contractor: Government of Canada $7.64 million, 10.2% 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	Government of Canada Through Canadian Commercial Corporation Top agencies Navy (Department of the Navy)	$7,642,588	10.2%	Rank history: #81 in FY2022, #3 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2020.
2	Honeywell International Inc. 3 awardees, including Grimes Aerospace Company Top agencies Army (Department of the Army) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$6,763,944	9.0%	Rank history: #2 in FY2022, #1 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2020.
3	New Mexico Emergency Products LLC Top agencies DOI (Department of the Interior)	$2,658,050	3.5%	Rank history: #9 in FY2022, #16 in FY2023, #7 in FY2024 and not on the FY2025 list; up 6 since FY2020.
4	Prestolite Electric Incorporated 2 awardees Top agencies DLA (Defense Logistics Agency)	$2,273,420	3.0%	Rank history: #5 in FY2022 and not on the FY2023–FY2025 lists; up 6 since FY2020.
5	Uusi, LLC Top agencies DLA (Defense Logistics Agency)	$2,029,289	2.7%	Rank history: #89 in FY2022, #11 in FY2023, #27 in FY2024 and #2 in FY2025; up 2 since FY2020.
6	C E Niehoff & Co Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$1,989,283	2.6%	Rank history: #1 in FY2022, #2 in FY2023, #2 in FY2024 and #1 in FY2025; down 2 since FY2020.
7	Soderberg Manufacturing Company, Inc. Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$1,743,465	2.3%	Rank history: #10 in FY2022, #15 in FY2023, #21 in FY2024 and #20 in FY2025; up 8 since FY2020.
8	Control Products Corporation Top agencies DLA (Defense Logistics Agency)	$1,559,725	2.1%	Rank history: #39 in FY2022, #27 in FY2023, #32 in FY2024 and #34 in FY2025; down 2 since FY2020.
9	Graham Corp Through Barber-Nichols, LLC Top agencies Navy (Department of the Navy)	$1,501,107	2.0%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
10	QPI Pro, Inc. Top agencies DLA (Defense Logistics Agency)	$1,478,002	2.0%	Rank history: #58 in FY2022 and not on the FY2023–FY2025 lists; up 85 since FY2020.
11	Transdigm Group Incorporated 5 awardees, including Korry Electronics Co, Champion Aerospace LLC and CEF Industries, LLC Top agencies DLA (Defense Logistics Agency)	$1,295,428	1.7%	Rank history: #12 in FY2022, #13 in FY2023, #60 in FY2024 and not on the FY2025 list; up 19 since FY2020.
12	Triman Industries Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,188,250	1.6%	Rank history: #6 in FY2022, #8 in FY2023, #5 in FY2024 and #3 in FY2025; up 1 since FY2020.
13	U.s. Pioneer, L.L.C. Top agencies DLA (Defense Logistics Agency)	$1,185,043	1.6%	Rank history: #17 in FY2022, #35 in FY2023, #33 in FY2024 and #27 in FY2025; up 13 since FY2020.
14	GMS International Corporation Top agencies DLA (Defense Logistics Agency)	$1,089,354	1.4%	Rank history: #11 in FY2022, #17 in FY2023, #20 in FY2024 and #11 in FY2025; up 3 since FY2020.
15	Sun Display Systems LLC Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$999,953	1.3%	Rank history: #27 in FY2022, #29 in FY2023, #48 in FY2024 and #21 in FY2025; up 10 since FY2020.
16	Lawrence Technologies Inc. Top agencies DLA (Defense Logistics Agency)	$971,073	1.3%	Rank history: #45 in FY2022, #41 in FY2023, #42 in FY2024 and #47 in FY2025; down 2 since FY2020.
17	ELC Industries Corp. Top agencies DLA (Defense Logistics Agency)	$953,111	1.3%	Rank history: #28 in FY2022, #25 in FY2023, #63 in FY2024 and #35 in FY2025; up 5 since FY2020.
18	RTX Corporation 5 awardees, including Goodrich Lighting Systems Inc., Rosemount Aerospace Inc. and Ami Industries, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$917,978	1.2%	Rank history: #35 in FY2022, #23 in FY2023, #99 in FY2024 and not on the FY2025 list; up 6 since FY2020.
19	Oshkosh Corp 2 awardees, including Oshkosh Defense LLC and JLG Industries, Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$911,123	1.2%	Rank history: #41 in FY2022, #32 in FY2023, #53 in FY2024 and not on the FY2025 list; up 4 since FY2020.
20	911 Circuits LLC Top agencies DOJ (Department of Justice)	$823,925	1.1%	Rank history: #26 in FY2022, #47 in FY2023, #31 in FY2024 and #16 in FY2025; new, not ranked in FY2020.
21	Barnhart-Davis Company Top agencies DLA (Defense Logistics Agency)	$777,486	1.0%	Rank history: #37 in FY2022, #42 in FY2023, #51 in FY2024 and #74 in FY2025; up 167 since FY2020.
22	Supplycore LLC Top agencies DLA (Defense Logistics Agency)	$692,721	0.9%	Rank history: #38 in FY2022, #92 in FY2023, #30 in FY2024 and not on the FY2025 list; down 14 since FY2020.
23	Vehicle Maintenance Program Inc. Top agencies DLA (Defense Logistics Agency)	$657,356	0.9%	Rank history: #25 in FY2022, #52 in FY2023, #56 in FY2024 and #67 in FY2025; up 16 since FY2020.
24	Brighton Cromwell LLC Top agencies DLA (Defense Logistics Agency)	$646,462	0.9%	Rank history: not on the FY2022–FY2025 lists; up 83 since FY2020.
25	Marine Air Supply Co., Inc. Top agencies DLA (Defense Logistics Agency)	$643,766	0.9%	Rank history: #72 in FY2022, #46 in FY2023, #89 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
26	SSI Technology Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$585,860	0.8%	Rank history: #33 in FY2022 and not on the FY2023–FY2025 lists; up 22 since FY2020.
27	Phantom Products, Inc. Top agencies DLA (Defense Logistics Agency)	$554,452	0.7%	Rank history: not on the FY2022–FY2025 lists; up 111 since FY2020.
28	Melton Sales & Service Top agencies DLA (Defense Logistics Agency)	$543,790	0.7%	Rank history: #65 in FY2022 and not on the FY2023–FY2025 lists; up 69 since FY2020.
29	Airborne Supply Inc. Top agencies DLA (Defense Logistics Agency)	$538,943	0.7%	Rank history: #60 in FY2022, #73 in FY2023 and not on the FY2024–FY2025 lists; up 41 since FY2020.
30	Windward Enterprises, LLC Top agencies DLA (Defense Logistics Agency)	$528,937	0.7%	Rank history: #15 in FY2022, #84 in FY2023, #29 in FY2024 and #72 in FY2025; down 11 since FY2020.
31	Astronics Corporation 2 awardees, including Luminescent Systems, Inc. Top agencies DLA (Defense Logistics Agency)	$478,975	0.6%	Rank history: #48 in FY2022, #61 in FY2023, #96 in FY2024 and not on the FY2025 list; up 2 since FY2020.
32	Am General LLC Top agencies DLA (Defense Logistics Agency)	$456,968	0.6%	Rank history: #3 in FY2022, #9 in FY2023, #26 in FY2024 and #45 in FY2025; new, not ranked in FY2020.
33	Ibis TEK Inc. Through Xper, Inc. Top agencies DLA (Defense Logistics Agency)	$451,635	0.6%	Rank history: not on the FY2022–FY2025 lists; up 33 since FY2020.
34	Erie Engineered Products, Inc. Top agencies Navy (Department of the Navy)	$443,850	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
35	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency)	$433,178	0.6%	Rank history: #8 in FY2022, #24 in FY2023, #41 in FY2024 and #50 in FY2025; down 1 since FY2020.
36	Maven Engineering Corporation Top agencies DLA (Defense Logistics Agency)	$430,804	0.6%	Rank history: not on the FY2022 list, #34 in FY2023 and not on the FY2024–FY2025 lists; up 160 since FY2020.
37	Pines Quality Inc. Top agencies DLA (Defense Logistics Agency)	$412,873	0.5%	Rank history: #83 in FY2022, #45 in FY2023, #82 in FY2024 and not on the FY2025 list; up 39 since FY2020.
38	Polytronix, Inc. Top agencies DLA (Defense Logistics Agency)	$401,711	0.5%	Rank history: #53 in FY2022, #36 in FY2023, #52 in FY2024 and #49 in FY2025; up 26 since FY2020.
39	Container Research Corp Top agencies Navy (Department of the Navy)	$399,025	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
40	Blue Cord Logistic Strategies Inc. Top agencies DLA (Defense Logistics Agency)	$369,738	0.5%	Rank history: not on the FY2022–FY2025 lists; up 149 since FY2020.
41	Statz Corp Top agencies DLA (Defense Logistics Agency)	$359,719	0.5%	Rank history: not on the FY2022–FY2025 lists; down 5 since FY2020.
42	CME Arma, Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$345,611	0.5%	Rank history: #80 in FY2022, #57 in FY2023, not on the FY2024 list and #14 in FY2025; up 29 since FY2020.
43	Aarcorp Through AAR Supply Chain, Inc. Top agencies DLA (Defense Logistics Agency)	$337,109	0.4%	Rank history: not on the FY2022–FY2025 lists; up 165 since FY2020.
44	Lehr Upfitters Opco, LLC Top agencies USDA (Department of Agriculture)	$336,733	0.4%	Rank history: not on the FY2022–FY2025 lists; up 369 since FY2020.
45	Aircraft Engineering & Installation Services, Inc. Top agencies DLA (Defense Logistics Agency)	$327,237	0.4%	Rank history: #52 in FY2022 and not on the FY2023–FY2025 lists; up 10 since FY2020.
46	Integrated Procurement Technologies Top agencies DLA (Defense Logistics Agency)	$318,931	0.4%	Rank history: #4 in FY2022, #14 in FY2023, #22 in FY2024 and #25 in FY2025; up 19 since FY2020.
47	Lockheed Martin Corporation 3 awardees Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$282,791	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
48	General Electric Company 2 awardees, including Unison Industries LLC and GE Aviation Systems LLC Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$275,960	0.4%	Rank history: #23 in FY2022, #28 in FY2023, #19 in FY2024 and #36 in FY2025; down 11 since FY2020.
49	BAE Systems PLC 2 awardees, including BAE Systems Information & Electronic Systems Integration Inc. and BAE Systems Land & Armaments L.P. Top agencies DLA (Defense Logistics Agency)	$271,447	0.4%	Rank history: #54 in FY2022, #10 in FY2023 and not on the FY2024–FY2025 lists; down 31 since FY2020.
50	Heico Aerospace Corporat Through Seal Dynamics LLC Top agencies DLA (Defense Logistics Agency)	$258,161	0.3%	Rank history: #56 in FY2022, #94 in FY2023, not on the FY2024 list and #76 in FY2025; up 23 since FY2020.
51	L.P. Aero Plastics, Inc. Top agencies DLA (Defense Logistics Agency)	$256,114	0.3%	Rank history: #62 in FY2022, #59 in FY2023, #66 in FY2024 and #95 in FY2025; up 52 since FY2020.
52	Paramount Panels, Inc. 3 awardees, including Panob Corp Top agencies DLA (Defense Logistics Agency)	$253,350	0.3%	Rank history: not on the FY2022–FY2025 lists; up 84 since FY2020.
53	Oshkosh Defense LLC Top agencies DLA (Defense Logistics Agency)	$242,075	0.3%	Rank history: not on the FY2022–FY2025 lists; down 6 since FY2020.
54	Spaires Inc. Top agencies DLA (Defense Logistics Agency)	$241,763	0.3%	Rank history: not on the FY2022–FY2025 lists; up 267 since FY2020.
55	Triad Technologies LLC Top agencies DLA (Defense Logistics Agency)	$238,235	0.3%	Rank history: #61 in FY2022, #68 in FY2023 and not on the FY2024–FY2025 lists; up 23 since FY2020.
56	Netwill Company, Inc. Top agencies DLA (Defense Logistics Agency)	$237,245	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
57	MTU Aero Engines Holding AG Through Vericor Power Systems LLC Top agencies DLA (Defense Logistics Agency)	$228,719	0.3%	Rank history: not on the FY2022–FY2025 lists; up 26 since FY2020.
58	Janels Industries Inc. Top agencies DLA (Defense Logistics Agency)	$204,818	0.3%	Rank history: #47 in FY2022, #20 in FY2023, #37 in FY2024 and #60 in FY2025; down 17 since FY2020.
59	Syn-Tech System, Inc. Top agencies DOJ (Department of Justice)	$204,341	0.3%	Rank history: #31 in FY2022, #70 in FY2023, #62 in FY2024 and #39 in FY2025; down 27 since FY2020.
60	Central Diesel, Inc. Top agencies DLA (Defense Logistics Agency)	$201,382	0.3%	Rank history: #50 in FY2022 and not on the FY2023–FY2025 lists; up 21 since FY2020.
61	Richard Manufacturing Company Top agencies DLA (Defense Logistics Agency)	$185,884	0.2%	Rank history: #19 in FY2022, #75 in FY2023, #74 in FY2024 and #83 in FY2025; up 2 since FY2020.
62	Science Applications International Corporation Through Asrc Federal Facilities Logistics, LLC Top agencies DLA (Defense Logistics Agency)	$171,477	0.2%	Rank history: #79 in FY2022, #77 in FY2023 and not on the FY2024–FY2025 lists; up 24 since FY2020.
63	Badger Truck and Automotive Group, Inc. Top agencies DLA (Defense Logistics Agency)	$165,379	0.2%	Rank history: #32 in FY2022, #62 in FY2023, #67 in FY2024 and #77 in FY2025; up 36 since FY2020.
64	American Trading Service Inc Through American Trading Services, Inc. Top agencies DLA (Defense Logistics Agency)	$163,074	0.2%	Rank history: not on the FY2022 list, #96 in FY2023 and not on the FY2024–FY2025 lists; up 100 since FY2020.
65	Purple Heart Connect LLC Top agencies VA (Department of Veterans Affairs)	$158,168	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
66	Military Supply Company LLC Top agencies DLA (Defense Logistics Agency)	$152,157	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
67	Jered LLC Top agencies DLA (Defense Logistics Agency)	$147,315	0.2%	Rank history: not on the FY2022–FY2025 lists; up 24 since FY2020.
68	Valcorp Enterprises LLC Top agencies DLA (Defense Logistics Agency)	$147,190	0.2%	Rank history: #21 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
69	Aviate Enterprises, Inc. Top agencies DOI (Department of the Interior) Navy (Department of the Navy) Army (Department of the Army)	$143,033	0.2%	Rank history: not on the FY2022–FY2025 lists; up 160 since FY2020.
70	The Boeing Company 4 awardees, including Boeing Distribution Services X, Inc., Boeing Distribution, Inc. and Boeing Distribution Services, Inc. Top agencies DLA (Defense Logistics Agency)	$141,637	0.2%	Rank history: not on the FY2022 list, #78 in FY2023, #68 in FY2024 and #51 in FY2025; up 95 since FY2020.
71	Aero-Tel Wire Harness Corp Top agencies Army (Department of the Army)	$141,288	0.2%	Rank history: #87 in FY2022, #72 in FY2023 and not on the FY2024–FY2025 lists; up 25 since FY2020.
72	Philadelphia Electrical Equipment Co Top agencies DHS (Department of Homeland Security)	$140,034	0.2%	Rank history: not on the FY2022–FY2025 lists; down 37 since FY2020.
73	In-Mar Solutions LLC Top agencies DHS (Department of Homeland Security)	$136,350	0.2%	Rank history: #29 in FY2022 and not on the FY2023–FY2025 lists; up 2 since FY2020.
74	Comperipherals Incorporated Top agencies DLA (Defense Logistics Agency)	$133,566	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
75	Arrow Safety Device Co. Top agencies GSA (General Services Administration)	$132,237	0.2%	Rank history: not on the FY2022–FY2025 lists; up 17 since FY2020.
76	Cayuse Holdings LLC Through Cayuse Technologies, LLC Top agencies USAF (Department of the Air Force)	$131,000	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
77	Aero Precision Industries LLC 2 awardees, including Allclear Aerospace & Defense, Inc. Top agencies DLA (Defense Logistics Agency)	$129,032	0.2%	Rank history: not on the FY2022 list, #33 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
78	Equipment Parts Sales Top agencies DLA (Defense Logistics Agency)	$125,112	0.2%	Rank history: not on the FY2022–FY2025 lists; up 41 since FY2020.
79	Echelon Supply and Service, Inc. Top agencies DLA (Defense Logistics Agency)	$124,993	0.2%	Rank history: #59 in FY2022 and not on the FY2023–FY2025 lists; up 63 since FY2020.
80	VSE Corporation 2 awardees, including Wheeler Fleet Solutions, Co. Top agencies DLA (Defense Logistics Agency)	$122,896	0.2%	Rank history: #74 in FY2022 and not on the FY2023–FY2025 lists; down 29 since FY2020.
81	Frazier Aviation Inc. Top agencies DLA (Defense Logistics Agency)	$121,800	0.2%	Rank history: #98 in FY2022 and not on the FY2023–FY2025 lists; up 171 since FY2020.
82	W. W. Williams Company LLC the 2 awardees, including W.w. Williams Company, the LLC Top agencies DLA (Defense Logistics Agency)	$121,541	0.2%	Rank history: not on the FY2022–FY2025 lists; up 55 since FY2020.
83	Hawkeye Innovation LLC Top agencies DLA (Defense Logistics Agency)	$118,383	0.2%	Rank history: #40 in FY2022 and not on the FY2023–FY2025 lists; down 45 since FY2020.
84	VC Displays, Inc. Top agencies DLA (Defense Logistics Agency)	$116,916	0.2%	Rank history: not on the FY2022–FY2024 lists and #71 in FY2025; up 379 since FY2020.
85	Larkos Packing and Distribution Inc. Top agencies DLA (Defense Logistics Agency)	$114,843	0.2%	Rank history: #85 in FY2022, not on the FY2023–FY2024 lists and #79 in FY2025; up 15 since FY2020.
86	Filter Products Corporation Top agencies DLA (Defense Logistics Agency)	$114,307	0.2%	Rank history: not on the FY2022–FY2025 lists; up 63 since FY2020.
87	Unimex Corporation Through Paragon Defense Solutions Inc. Top agencies DLA (Defense Logistics Agency)	$113,920	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
88	Xchanger Manufacturing Corporation Top agencies DLA (Defense Logistics Agency)	$109,800	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
89	Global Logistics Strategies Inc. Top agencies DLA (Defense Logistics Agency)	$107,318	0.1%	Rank history: #69 in FY2022, #39 in FY2023, #39 in FY2024 and not on the FY2025 list; up 41 since FY2020.
90	TVH Group NV Through TVH Parts Co. Top agencies DLA (Defense Logistics Agency)	$106,782	0.1%	Rank history: not on the FY2022–FY2025 lists; up 73 since FY2020.
91	Zemarc Corporation Top agencies DLA (Defense Logistics Agency)	$105,200	0.1%	Rank history: not on the FY2022–FY2025 lists; up 15 since FY2020.
92	Allied Systems & Controls, Inc. Top agencies DLA (Defense Logistics Agency)	$104,481	0.1%	Rank history: not on the FY2022–FY2025 lists; up 16 since FY2020.
93	Cavanaugh Government Group, LLC Top agencies DLA (Defense Logistics Agency)	$103,794	0.1%	Rank history: #97 in FY2022, #40 in FY2023, #85 in FY2024 and #69 in FY2025; down 51 since FY2020.
94	Brown Helicopter, Inc. Top agencies DLA (Defense Logistics Agency)	$102,384	0.1%	Rank history: not on the FY2022 list, #69 in FY2023, #86 in FY2024 and not on the FY2025 list; up 228 since FY2020.
95	Gate Industries Top agencies Army (Department of the Army)	$100,093	0.1%	Rank history: not on the FY2022 list, #55 in FY2023, #80 in FY2024 and #56 in FY2025; down 83 since FY2020.
96	Theodor Wille Intertrade GMBH Through Atlantic Diving Supply, Inc. Top agencies DLA (Defense Logistics Agency) HUD (Department of Housing and Urban Development)	$100,080	0.1%	Rank history: not on the FY2022–FY2025 lists; up 79 since FY2020.
97	Management Solutions, L.C. Top agencies DLA (Defense Logistics Agency)	$98,973	0.1%	Rank history: not on the FY2022–FY2025 lists; down 51 since FY2020.
98	Scott Heavy Equipment, Inc. Top agencies DLA (Defense Logistics Agency)	$96,649	0.1%	Rank history: not on the FY2022–FY2025 lists; up 87 since FY2020.
99	Kit Pack, LLC Top agencies DLA (Defense Logistics Agency)	$93,675	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
100	Artemis Electronics LLC Top agencies DLA (Defense Logistics Agency)	$92,716	0.1%	Rank history: not on the FY2022–FY2025 lists; up 24 since FY2020.

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100 of 482 contractors listed here. See the rest on GovTribe.

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 $75.2 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 336320 contractors in FY2021?

1. Government of Canada ($7.64M), 2. Honeywell International Inc. ($6.76M), 3. New Mexico Emergency Products LLC ($2.66M), 4. Prestolite Electric Incorporated ($2.27M), 5. Uusi, LLC ($2.03M), 6. C E Niehoff & Co ($1.99M), 7. Soderberg Manufacturing Company, Inc. ($1.74M), 8. Control Products Corporation ($1.56M), 9. Graham Corp ($1.5M), 10. QPI Pro, Inc. ($1.48M).

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