Top 100 Contractors in NAICS 3351: Electric Lighting Equipment Manufacturing, FY2021

Name: Top 100 Contractors in NAICS 3351: Electric Lighting 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 44% of FY2021 NAICS 3351 contract dollars

Contract obligations: $82,700,828 Net of deobligations, by contracts coded NAICS 3351 or a code under it
Contractors: 598 Parent companies with an obligation
Largest contractor: LC Industries Inc. $10.3 million, 12.0% 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	LC Industries Inc. Top agencies DLA (Defense Logistics Agency)	$10,268,185	12.0%	Rank history: #3 in FY2022, #2 in FY2023, #1 in FY2024 and #1 in FY2025; up 1 since FY2020.
2	Terex Corporation 2 awardees Top agencies USAF (Department of the Air Force) USDA (Department of Agriculture) DOI (Department of the Interior)	$8,681,726	10.1%	Rank history: #26 in FY2022 and not on the FY2023–FY2025 lists; up 1 since FY2020.
3	ADB Safegate Americas LLC Top agencies DOT (Department of Transportation) USAF (Department of the Air Force)	$3,857,166	4.5%	Rank history: #28 in FY2022, #11 in FY2023 and not on the FY2024–FY2025 lists; up 175 since FY2020.
4	Sealite Usa, LLC Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security)	$3,636,613	4.2%	Rank history: #1 in FY2022, #1 in FY2023, #4 in FY2024 and not on the FY2025 list; up 20 since FY2020.
5	Theodor Wille Intertrade GMBH Through Atlantic Diving Supply, Inc. Top agencies DLA (Defense Logistics Agency) DOJ (Department of Justice) USAF (Department of the Air Force)	$3,566,325	4.2%	Rank history: #7 in FY2022, #6 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2020.
6	The L.c.doane Company Top agencies DLA (Defense Logistics Agency)	$2,697,552	3.1%	Rank history: #4 in FY2022, #4 in FY2023, #6 in FY2024 and #4 in FY2025; unchanged since FY2020.
7	Control Products Corporation Top agencies DLA (Defense Logistics Agency)	$1,668,770	1.9%	Rank history: #10 in FY2022, #14 in FY2023, #10 in FY2024 and not on the FY2025 list; up 140 since FY2020.
8	QPI Pro, Inc. Top agencies DLA (Defense Logistics Agency)	$1,335,483	1.6%	Rank history: #9 in FY2022, #22 in FY2023, #29 in FY2024 and #24 in FY2025; up 7 since FY2020.
9	New Bedford Panoramex Corp. Top agencies DOT (Department of Transportation)	$1,260,905	1.5%	Rank history: #6 in FY2022, #25 in FY2023, #3 in FY2024 and #37 in FY2025; down 4 since FY2020.
10	Wesco International, Inc. Through Wesco Distribution Inc. Top agencies USAF (Department of the Air Force)	$1,181,231	1.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
11	Triman Industries Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$977,898	1.1%	Rank history: #12 in FY2022, #13 in FY2023, #8 in FY2024 and #15 in FY2025; down 2 since FY2020.
12	Krueger International, Inc. Top agencies DOJ (Department of Justice)	$932,121	1.1%	Rank history: #61 in FY2022, #21 in FY2023, #30 in FY2024 and #93 in FY2025; up 68 since FY2020.
13	U.s. Pioneer, L.L.C. Top agencies DLA (Defense Logistics Agency)	$895,060	1.0%	Rank history: #14 in FY2022, #16 in FY2023, #24 in FY2024 and #10 in FY2025; up 6 since FY2020.
14	Oshkosh Corp Through Oshkosh Defense LLC Top agencies DLA (Defense Logistics Agency)	$871,211	1.0%	Rank history: #51 in FY2022 and not on the FY2023–FY2025 lists; up 451 since FY2020.
15	Defense Venture Holdings, LLC Top agencies DLA (Defense Logistics Agency)	$704,093	0.8%	Rank history: #20 in FY2022, #33 in FY2023, #14 in FY2024 and #8 in FY2025; up 23 since FY2020.
16	Brighton Cromwell LLC Top agencies DLA (Defense Logistics Agency)	$695,349	0.8%	Rank history: #37 in FY2022 and not on the FY2023–FY2025 lists; up 4 since FY2020.
17	Statz Corp Top agencies DLA (Defense Logistics Agency)	$664,962	0.8%	Rank history: #13 in FY2022, #32 in FY2023, #18 in FY2024 and #11 in FY2025; up 68 since FY2020.
18	Amglo Kemlite Laboratories, Inc. 2 awardees Top agencies DOT (Department of Transportation) DLA (Defense Logistics Agency)	$645,988	0.8%	Rank history: #16 in FY2022, not on the FY2023 list, #25 in FY2024 and #29 in FY2025; up 75 since FY2020.
19	Carlisle & Finch Co Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) DHS (Department of Homeland Security)	$636,970	0.7%	Rank history: #25 in FY2022, #9 in FY2023, #16 in FY2024 and #12 in FY2025; up 10 since FY2020.
20	Jameson LLC Top agencies DLA (Defense Logistics Agency)	$623,409	0.7%	Rank history: #35 in FY2022, #82 in FY2023, #85 in FY2024 and not on the FY2025 list; up 77 since FY2020.
21	Cyalume Technologies Inc. Top agencies DLA (Defense Logistics Agency)	$613,520	0.7%	Rank history: #17 in FY2022, #15 in FY2023, #17 in FY2024 and #13 in FY2025; up 71 since FY2020.
22	Wanco, Inc. Top agencies Army (Department of the Army) DHS (Department of Homeland Security) Navy (Department of the Navy)	$574,887	0.7%	Rank history: #42 in FY2022, #59 in FY2023, #41 in FY2024 and #60 in FY2025; up 20 since FY2020.
23	Trillamed LLC Top agencies VA (Department of Veterans Affairs)	$573,999	0.7%	Rank history: not on the FY2022 list, #3 in FY2023, #54 in FY2024 and #19 in FY2025; up 223 since FY2020.
24	Malcar Northwest Inc. Top agencies DOJ (Department of Justice)	$570,370	0.7%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
25	Fedcap Rehabilitation Services, Inc. Top agencies DLA (Defense Logistics Agency)	$554,458	0.6%	Rank history: not on the FY2022–FY2025 lists; up 8 since FY2020.
26	Phantom Products, Inc. Top agencies DLA (Defense Logistics Agency)	$553,047	0.6%	Rank history: #32 in FY2022, #34 in FY2023, #20 in FY2024 and #18 in FY2025; up 5 since FY2020.
27	Led Lighting Solutions LLC Top agencies Army (Department of the Army) DHS (Department of Homeland Security) USAF (Department of the Air Force)	$538,039	0.6%	Rank history: not on the FY2022–FY2025 lists; down 10 since FY2020.
28	RTX Corporation 3 awardees, including Raytheon Company Top agencies Navy (Department of the Navy)	$523,723	0.6%	Rank history: not on the FY2022–FY2025 lists; down 27 since FY2020.
29	Jo-Kell Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) DHS (Department of Homeland Security)	$519,395	0.6%	Rank history: #45 in FY2022, #39 in FY2023, #19 in FY2024 and #16 in FY2025; up 12 since FY2020.
30	Quantico Tactical Incorporated Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$517,418	0.6%	Rank history: #31 in FY2022, #20 in FY2023, #32 in FY2024 and #31 in FY2025; down 23 since FY2020.
31	Hallpass Capital Inc. Top agencies Army (Department of the Army) DOJ (Department of Justice) DHS (Department of Homeland Security)	$493,569	0.6%	Rank history: #23 in FY2022, #18 in FY2023, #39 in FY2024 and #40 in FY2025; down 6 since FY2020.
32	RSL Fiber Systems LLC Top agencies Navy (Department of the Navy)	$458,507	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
33	Tattersall Supply, LLC Top agencies Army (Department of the Army) DOS (Department of State)	$452,086	0.5%	Rank history: not on the FY2022 list, #98 in FY2023, not on the FY2024 list and #78 in FY2025; down 10 since FY2020.
34	Imeco Inc. Through Aeronautical & General Instruments Limited Top agencies Navy (Department of the Navy)	$445,920	0.5%	Rank history: not on the FY2022 list, #17 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
35	Standard Communications Inc. Top agencies VA (Department of Veterans Affairs)	$418,275	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
36	Federal Resources Supply Company Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$408,136	0.5%	Rank history: not on the FY2022–FY2025 lists; up 39 since FY2020.
37	Connecticut Valley Industries, LLC Top agencies DLA (Defense Logistics Agency)	$380,829	0.4%	Rank history: #57 in FY2022, #44 in FY2023, #31 in FY2024 and #25 in FY2025; down 1 since FY2020.
38	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$373,255	0.4%	Rank history: #27 in FY2022, #12 in FY2023, #7 in FY2024 and #17 in FY2025; down 22 since FY2020.
39	ZGS Inc. Through Barbizon Capitol, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$370,886	0.4%	Rank history: not on the FY2022–FY2025 lists; up 133 since FY2020.
40	Gregory Thomas Inc. Top agencies DLA (Defense Logistics Agency)	$367,730	0.4%	Rank history: #54 in FY2022, #24 in FY2023, #23 in FY2024 and #20 in FY2025; up 17 since FY2020.
41	Allied Defense Industries Inc. 2 awardees, including Aero International, LLC Top agencies DLA (Defense Logistics Agency)	$364,355	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
42	Momentum Interactive LLC Top agencies DLA (Defense Logistics Agency)	$361,361	0.4%	Rank history: not on the FY2022–FY2025 lists; up 4 since FY2020.
43	Heico Aerospace Corporat Through Seal Dynamics LLC Top agencies DLA (Defense Logistics Agency)	$361,172	0.4%	Rank history: #68 in FY2022, #47 in FY2023, #40 in FY2024 and #52 in FY2025; up 2 since FY2020.
44	North End Group LLC Top agencies DLA (Defense Logistics Agency)	$342,792	0.4%	Rank history: #49 in FY2022, not on the FY2023 list, #27 in FY2024 and not on the FY2025 list; down 22 since FY2020.
45	Noble Sales Co. Inc. 2 awardees, including Noble Supply & Logistics, LLC and Tactical & Survival Specialties, LLC Top agencies Navy (Department of the Navy) DOJ (Department of Justice)	$331,017	0.4%	Rank history: not on the FY2022–FY2025 lists; down 37 since FY2020.
46	Lynn Electronics LLC Top agencies DLA (Defense Logistics Agency)	$330,032	0.4%	Rank history: #70 in FY2022 and not on the FY2023–FY2025 lists; up 111 since FY2020.
47	Pioneer Industries, LLC Top agencies DLA (Defense Logistics Agency)	$323,500	0.4%	Rank history: #21 in FY2022, #45 in FY2023, #34 in FY2024 and #42 in FY2025; up 87 since FY2020.
48	Hughey & Phillips LLC Top agencies Navy (Department of the Navy) DOT (Department of Transportation)	$312,978	0.4%	Rank history: #5 in FY2022, #5 in FY2023, #42 in FY2024 and #97 in FY2025; down 37 since FY2020.
49	Whelen Engineering Company, Inc. Top agencies DOT (Department of Transportation) DLA (Defense Logistics Agency)	$303,965	0.4%	Rank history: not on the FY2022–FY2025 lists; up 444 since FY2020.
50	Audio Visual Innovations Inc. Through Avi-Spl LLC Top agencies USAF (Department of the Air Force)	$291,859	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
51	Western Michigan Fleet Parts Inc. Top agencies DLA (Defense Logistics Agency)	$283,715	0.3%	Rank history: #79 in FY2022, #61 in FY2023, #52 in FY2024 and not on the FY2025 list; down 23 since FY2020.
52	Wamco, Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$283,286	0.3%	Rank history: #15 in FY2022, #42 in FY2023, #11 in FY2024 and #22 in FY2025; up 4 since FY2020.
53	Standard Fusee Corp., Inc. Top agencies DLA (Defense Logistics Agency)	$257,883	0.3%	Rank history: not on the FY2022–FY2025 lists; up 67 since FY2020.
54	Lighting Designs LLC Top agencies Navy (Department of the Navy)	$255,808	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
55	Controlled Environments Inc. Top agencies USDA (Department of Agriculture)	$254,360	0.3%	Rank history: not on the FY2022–FY2025 lists; up 98 since FY2020.
56	Environmental Disinfection Management, LLC Top agencies VA (Department of Veterans Affairs)	$249,884	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
57	Maney Aircraft, Inc. Top agencies DLA (Defense Logistics Agency)	$245,000	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
58	Indianapolis Stage Sales and Rentals, Inc. Top agencies USAF (Department of the Air Force)	$244,534	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
59	Sound Productions, Llc. Top agencies Army (Department of the Army)	$239,994	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
60	Government of the United States Through Federal Prison Industries, Inc. Top agencies GSA (General Services Administration)	$232,715	0.3%	Rank history: #48 in FY2022, #52 in FY2023, #56 in FY2024 and #55 in FY2025; up 1 since FY2020.
61	W S Darley & Co Top agencies DLA (Defense Logistics Agency)	$232,602	0.3%	Rank history: not on the FY2022–FY2025 lists; down 6 since FY2020.
62	Soderberg Manufacturing Company, Inc. Top agencies DLA (Defense Logistics Agency)	$232,395	0.3%	Rank history: #43 in FY2022, #51 in FY2023, #45 in FY2024 and #35 in FY2025; down 28 since FY2020.
63	Beam Distributing, Inc. Top agencies GSA (General Services Administration) DLA (Defense Logistics Agency)	$230,636	0.3%	Rank history: #38 in FY2022, #58 in FY2023, #36 in FY2024 and #28 in FY2025; up 24 since FY2020.
64	United International EST for Electrical Contracting Top agencies USAF (Department of the Air Force)	$224,210	0.3%	Rank history: #41 in FY2022, #74 in FY2023 and not on the FY2024–FY2025 lists; down 11 since FY2020.
65	Tactical & Survival Specialties, LLC Top agencies DLA (Defense Logistics Agency)	$214,260	0.2%	Rank history: not on the FY2022–FY2025 lists; up 41 since FY2020.
66	Pro-Line Procurement Services LLC Top agencies USAF (Department of the Air Force)	$213,750	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
67	Fortem Genus Inc. Top agencies DLA (Defense Logistics Agency)	$212,707	0.2%	Rank history: #40 in FY2022, #81 in FY2023 and not on the FY2024–FY2025 lists; up 48 since FY2020.
68	Goldwings Supply Service, Inc. Top agencies USAF (Department of the Air Force) DOI (Department of the Interior)	$211,806	0.2%	Rank history: #2 in FY2022, #7 in FY2023, #22 in FY2024 and #94 in FY2025; down 56 since FY2020.
69	Daybreak Led LLC Top agencies USDA (Department of Agriculture)	$201,839	0.2%	Rank history: #88 in FY2022 and not on the FY2023–FY2025 lists; up 79 since FY2020.
70	Stewart R. Browne Mfg. Co., Inc. Top agencies DLA (Defense Logistics Agency)	$198,972	0.2%	Rank history: #87 in FY2022, not on the FY2023 list, #71 in FY2024 and not on the FY2025 list; up 385 since FY2020.
71	Pelican Products, Inc. Top agencies DLA (Defense Logistics Agency)	$198,255	0.2%	Rank history: #50 in FY2022 and not on the FY2023–FY2025 lists; down 19 since FY2020.
72	Janels Industries Inc. Top agencies DLA (Defense Logistics Agency)	$185,684	0.2%	Rank history: #69 in FY2022, #55 in FY2023, #58 in FY2024 and #56 in FY2025; up 73 since FY2020.
73	Meneses & Mcfadden, Cartor, Vitor Hugo Carvalho, LDA Top agencies USAF (Department of the Air Force)	$185,430	0.2%	Rank history: not on the FY2022–FY2024 lists and #67 in FY2025; new, not ranked in FY2020.
74	Solar Mod Systems, Inc. Top agencies DHS (Department of Homeland Security)	$183,153	0.2%	Rank history: not on the FY2022 list, #30 in FY2023 and not on the FY2024–FY2025 lists; down 14 since FY2020.
75	Marine Air Supply Co., Inc. Top agencies DLA (Defense Logistics Agency)	$182,043	0.2%	Rank history: #83 in FY2022 and not on the FY2023–FY2025 lists; up 122 since FY2020.
76	Aero International, LLC Top agencies DLA (Defense Logistics Agency)	$178,299	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
77	Vehicle Maintenance Program Inc. Top agencies DLA (Defense Logistics Agency)	$170,319	0.2%	Rank history: #47 in FY2022, #54 in FY2023, #72 in FY2024 and not on the FY2025 list; down 3 since FY2020.
78	Brighter Days & Nites, Inc. Top agencies USAF (Department of the Air Force)	$167,284	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
79	Interlog Corporation Top agencies DLA (Defense Logistics Agency)	$162,929	0.2%	Rank history: not on the FY2022–FY2025 lists; up 190 since FY2020.
80	GMS International Corporation Top agencies DLA (Defense Logistics Agency)	$161,761	0.2%	Rank history: #24 in FY2022, #65 in FY2023, #73 in FY2024 and not on the FY2025 list; up 36 since FY2020.
81	Progressive Engineering Technologies, LLC Top agencies DLA (Defense Logistics Agency)	$161,595	0.2%	Rank history: #59 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
82	MKS Instruments Inc. Through Newport Corporation Top agencies DLA (Defense Logistics Agency)	$160,310	0.2%	Rank history: not on the FY2022–FY2024 lists and #77 in FY2025; down 42 since FY2020.
83	Harko Enterprises LLC Top agencies DLA (Defense Logistics Agency)	$160,173	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
84	Dacval, LLC Top agencies DLA (Defense Logistics Agency)	$158,200	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
85	Jay Moulding Corp Top agencies DLA (Defense Logistics Agency)	$155,653	0.2%	Rank history: #36 in FY2022, #38 in FY2023, #47 in FY2024 and #41 in FY2025; up 6 since FY2020.
86	General Transportation & Equi Pment Co Top agencies USAF (Department of the Air Force)	$152,211	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
87	Fairway Lighting Inc. Top agencies Army (Department of the Army)	$150,843	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
88	B & H International LLC Top agencies Navy (Department of the Navy) DOJ (Department of Justice)	$145,046	0.2%	Rank history: not on the FY2022–FY2025 lists; down 45 since FY2020.
89	Murray Benjamin Electric Company LLC Top agencies DLA (Defense Logistics Agency)	$140,228	0.2%	Rank history: not on the FY2022 list, #64 in FY2023, #90 in FY2024 and not on the FY2025 list; up 19 since FY2020.
90	Golight, Inc. Top agencies DLA (Defense Logistics Agency)	$140,019	0.2%	Rank history: #39 in FY2022, #69 in FY2023, #49 in FY2024 and #49 in FY2025; down 20 since FY2020.
91	S I T Corporation Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$139,994	0.2%	Rank history: #66 in FY2022, #50 in FY2023, #62 in FY2024 and #51 in FY2025; down 18 since FY2020.
92	Seitz Scientific Industries, Inc. Top agencies DLA (Defense Logistics Agency)	$139,445	0.2%	Rank history: #33 in FY2022, #53 in FY2023, #35 in FY2024 and #54 in FY2025; down 4 since FY2020.
93	Integrated Procurement Technologies Top agencies DLA (Defense Logistics Agency)	$137,844	0.2%	Rank history: not on the FY2022–FY2025 lists; up 14 since FY2020.
94	Jag Components, LLC Top agencies DLA (Defense Logistics Agency)	$135,007	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
95	Forefront Communications Technology LLC Top agencies Navy (Department of the Navy)	$131,840	0.2%	Rank history: not on the FY2022–FY2025 lists; down 11 since FY2020.
96	Blond Lighting Fixture Supply Company, Incorporated Top agencies DLA (Defense Logistics Agency)	$128,338	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
97	Kipper Tool Company Top agencies DLA (Defense Logistics Agency) DOI (Department of the Interior) DOL (Department of Labor)	$128,193	0.1%	Rank history: not on the FY2022–FY2025 lists; up 29 since FY2020.
98	Skyworks, LLC Top agencies VA (Department of Veterans Affairs)	$124,800	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
99	Good Vibes, LLC Top agencies DLA (Defense Logistics Agency)	$123,583	0.1%	Rank history: not on the FY2022 list, #89 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
100	Lighting Services, Inc. Top agencies Smithsonian (Smithsonian Institution)	$122,750	0.1%	Rank history: not on the FY2022 list, #68 in FY2023, #96 in FY2024 and not on the FY2025 list; up 22 since FY2020.

Show 75 more

100 of 598 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 3351

Code	Net obligations	Largest contractor
335129 Other Lighting Equipment Manufacturing	$49,213,364	LC Industries Inc.
335122 Commercial, Industrial, and Institutional Electric Lighting Fixture Manufacturing	$17,620,518	Wesco International, Inc.
335110 Electric Lamp Bulb and Part Manufacturing	$10,349,950	Theodor Wille Intertrade GMBH
335121 Residential Electric Lighting Fixture Manufacturing	$5,516,996	The L.c.doane Company

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 $85.7 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 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 3351 contractors in FY2021?

1. LC Industries Inc. ($10.3M), 2. Terex Corporation ($8.68M), 3. ADB Safegate Americas LLC ($3.86M), 4. Sealite Usa, LLC ($3.64M), 5. Theodor Wille Intertrade GMBH ($3.57M), 6. The L.c.doane Company ($2.7M), 7. Control Products Corporation ($1.67M), 8. QPI Pro, Inc. ($1.34M), 9. New Bedford Panoramex Corp. ($1.26M), 10. Wesco International, Inc. ($1.18M).

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