Top 100 Contractors in NAICS 3359: Other Electrical Equipment and Component Manufacturing, FY2021

Name: Top 100 Contractors in NAICS 3359: Other Electrical Equipment and Component Manufacturing, FY2021
Creator: GovTribe

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

The top 10 won 40% of FY2021 NAICS 3359 contract dollars

Contract obligations: $885,496,379 Net of deobligations, by contracts coded NAICS 3359 or a code under it
Contractors: 2,139 Parent companies with an obligation
Largest contractor: Science Applications International Corporation $74.5 million, 8.1% 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	Science Applications International Corporation 2 awardees, including Asrc Federal Facilities Logistics, LLC Top agencies Navy (Department of the Navy) DISA (Defense Information Systems Agency) DLA (Defense Logistics Agency)	$74,486,740	8.1%	Rank history: #1 in FY2022, #2 in FY2023, #1 in FY2024 and #1 in FY2025; unchanged since FY2020.
2	Enersys 4 awardees, including Enersys Energy Products Inc. and Enersys Delaware Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) VA (Department of Veterans Affairs)	$62,232,443	6.8%	Rank history: #2 in FY2022, #1 in FY2023, #8 in FY2024 and not on the FY2025 list; unchanged since FY2020.
3	Saab AB 3 awardees, including Saab, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$55,040,302	6.0%	Rank history: #3 in FY2022, #14 in FY2023 and not on the FY2024–FY2025 lists; up 118 since FY2020.
4	Diversified Technologies, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$38,102,391	4.1%	Rank history: #71 in FY2022, not on the FY2023 list, #10 in FY2024 and not on the FY2025 list; up 3 since FY2020.
5	Lockheed Martin Corporation 7 awardees Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$27,537,893	3.0%	Rank history: #4 in FY2022, not on the FY2023 list, #18 in FY2024 and #5 in FY2025; down 1 since FY2020.
6	Seneca Global Services LLC Top agencies DOJ (Department of Justice)	$23,492,236	2.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
7	Noble Sales Co. Inc. 2 awardees, including Noble Supply & Logistics, LLC and Tactical & Survival Specialties, LLC Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) DOS (Department of State)	$22,109,475	2.4%	Rank history: #43 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
8	OM Group Inc. Through Eaglepicher Technologies LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$21,099,913	2.3%	Rank history: #10 in FY2022, #9 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2020.
9	Leonardo S.p.A. 10 awardees, including DRS Naval Power Systems Inc., DRS Training & Control Systems, LLC and Pivotal Power Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$19,929,711	2.2%	Rank history: #16 in FY2022, #6 in FY2023, #7 in FY2024 and #6 in FY2025; down 3 since FY2020.
10	Eaton Corporation 7 awardees, including Eaton Industries (Italy) S.R.L. and Danfoss Power Solutions II, LLC Top agencies DOT (Department of Transportation) USAF (Department of the Air Force) DISA (Defense Information Systems Agency)	$19,083,341	2.1%	Rank history: #13 in FY2022, #15 in FY2023, #14 in FY2024 and #12 in FY2025; up 1 since FY2020.
11	Thales 2 awardees, including Thales Defense & Security Inc. and Thales Usa, Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$18,156,698	2.0%	Rank history: #73 in FY2022 and not on the FY2023–FY2025 lists; up 2 since FY2020.
12	Eastern Carolina Vocational Center Inc. Top agencies DLA (Defense Logistics Agency) VA (Department of Veterans Affairs) GSA (General Services Administration)	$15,283,329	1.7%	Rank history: #11 in FY2022, #8 in FY2023, #6 in FY2024 and #9 in FY2025; down 4 since FY2020.
13	L3Harris Technologies, Inc. 23 awardees, including L3 Technologies, Inc. and L3Harris Maritime Power & Energy Solutions, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$14,241,641	1.5%	Rank history: #22 in FY2022, #35 in FY2023, #21 in FY2024 and #42 in FY2025; down 8 since FY2020.
14	Switching Power Inc. Top agencies USAF (Department of the Air Force) DOT (Department of Transportation)	$13,951,997	1.5%	Rank history: #17 in FY2022, #19 in FY2023 and not on the FY2024–FY2025 lists; up 11 since FY2020.
15	Exide Technologies 2 awardees, including Stryten Energy LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$12,824,927	1.4%	Rank history: #59 in FY2022 and not on the FY2023–FY2025 lists; down 6 since FY2020.
16	Johnson Controls Security Solutions LLC 3 awardees, including Clarios, LLC and Johnson Controls Navy Systems, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$12,632,786	1.4%	Rank history: #30 in FY2022, #16 in FY2023, #26 in FY2024 and not on the FY2025 list; down 4 since FY2020.
17	RTX Corporation 19 awardees, including Raytheon Company, Kidde Technologies, Inc. and Simmonds Precision Products Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) DOJ (Department of Justice)	$11,628,182	1.3%	Rank history: #12 in FY2022, #4 in FY2023, #12 in FY2024 and #8 in FY2025; down 14 since FY2020.
18	American Superconductor Corp Top agencies Navy (Department of the Navy)	$11,078,735	1.2%	Rank history: not on the FY2022 list, #70 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2020.
19	Stryten Energy LLC 2 awardees Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$9,922,176	1.1%	Rank history: #21 in FY2022, #13 in FY2023, #19 in FY2024 and #17 in FY2025; new, not ranked in FY2020.
20	Stellant Systems Inc. Top agencies Navy (Department of the Navy)	$7,860,000	0.9%	Rank history: not on the FY2022–FY2024 lists and #56 in FY2025; new, not ranked in FY2020.
21	Concorde Battery Corporation Top agencies DLA (Defense Logistics Agency) DOI (Department of the Interior) Navy (Department of the Navy)	$7,455,368	0.8%	Rank history: #24 in FY2022, #24 in FY2023, #28 in FY2024 and #25 in FY2025; up 15 since FY2020.
22	General Dynamics Corporation 12 awardees, including General Dynamics Mission Systems, Inc., Electric Boat Corporation and General Dynamics Information Technology, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$6,927,215	0.8%	Rank history: not on the FY2022 list, #48 in FY2023, #73 in FY2024 and not on the FY2025 list; up 7 since FY2020.
23	Teledyne Technologies Incorporated 5 awardees, including Teledyne Instruments Inc. and Teledyne Defense Electronics, LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$6,777,358	0.7%	Rank history: #26 in FY2022, #38 in FY2023, #40 in FY2024 and #81 in FY2025; up 39 since FY2020.
24	Angel Holdings LLC Through C&D Technologies, Inc. Top agencies DLA (Defense Logistics Agency)	$6,289,712	0.7%	Rank history: #33 in FY2022, #25 in FY2023, #36 in FY2024 and not on the FY2025 list; up 9 since FY2020.
25	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) Army (Department of the Army)	$6,070,814	0.7%	Rank history: #32 in FY2022, #34 in FY2023, #46 in FY2024 and #28 in FY2025; up 5 since FY2020.
26	Bren-Tronics Defense LLC Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) Navy (Department of the Navy)	$5,712,108	0.6%	Rank history: #34 in FY2022, #11 in FY2023, #24 in FY2024 and #15 in FY2025; down 9 since FY2020.
27	Hitech Glass, LLC Top agencies DLA (Defense Logistics Agency)	$5,628,142	0.6%	Rank history: #15 in FY2022, not on the FY2023–FY2024 lists and #26 in FY2025; new, not ranked in FY2020.
28	Moog Inc. 4 awardees Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$5,503,963	0.6%	Rank history: not on the FY2022–FY2025 lists; up 38 since FY2020.
29	Sunpower Corporation 4 awardees, including Saft America Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) DHS (Department of Homeland Security)	$5,405,203	0.6%	Rank history: #29 in FY2022, #12 in FY2023, #20 in FY2024 and not on the FY2025 list; down 15 since FY2020.
30	Energizer Holdings, Inc. 2 awardees, including Energizer, LLC Top agencies VA (Department of Veterans Affairs) Army (Department of the Army)	$5,106,259	0.6%	Rank history: #40 in FY2022, #49 in FY2023, #69 in FY2024 and #47 in FY2025; new, not ranked in FY2020.
31	Theodor Wille Intertrade GMBH Through Atlantic Diving Supply, Inc. Top agencies DLA (Defense Logistics Agency) VA (Department of Veterans Affairs) Navy (Department of the Navy)	$4,877,383	0.5%	Rank history: not on the FY2022 list, #51 in FY2023 and not on the FY2024–FY2025 lists; up 108 since FY2020.
32	Computer Sites Inc. Top agencies USAF (Department of the Air Force)	$4,435,608	0.5%	Rank history: #31 in FY2022, #75 in FY2023, #59 in FY2024 and #50 in FY2025; down 5 since FY2020.
33	Tesla Industries Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) DHS (Department of Homeland Security)	$4,413,822	0.5%	Rank history: #53 in FY2022, #82 in FY2023 and not on the FY2024–FY2025 lists; down 9 since FY2020.
34	BAE Systems PLC 9 awardees, including BAE Systems Land & Armaments L.P., BAE Systems Controls Inc. and BAE Systems Information and Electronic Systems Integration Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) DLA (Defense Logistics Agency)	$4,252,584	0.5%	Rank history: #57 in FY2022, #85 in FY2023 and not on the FY2024–FY2025 lists; down 13 since FY2020.
35	Gilat Satellite Networks Ltd. Through Wavestream Corporation Top agencies Army (Department of the Army)	$4,116,158	0.4%	Rank history: not on the FY2022–FY2023 lists, #11 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
36	FIS Blue, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) Army (Department of the Army)	$3,876,142	0.4%	Rank history: not on the FY2022–FY2025 lists; up 84 since FY2020.
37	RPS Holdings, Inc. Through Rantec Power Systems Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$3,840,243	0.4%	Rank history: #54 in FY2022, #61 in FY2023, #47 in FY2024 and #39 in FY2025; up 65 since FY2020.
38	Gentex Corporation 3 awardees Top agencies DLA (Defense Logistics Agency)	$3,823,549	0.4%	Rank history: #86 in FY2022, not on the FY2023 list, #72 in FY2024 and #46 in FY2025; new, not ranked in FY2020.
39	Custom Manufacturing & Engineering, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$3,541,016	0.4%	Rank history: #63 in FY2022 and not on the FY2023–FY2025 lists; up 203 since FY2020.
40	Jo-Kell Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) DHS (Department of Homeland Security)	$3,436,395	0.4%	Rank history: #69 in FY2022, #54 in FY2023, #42 in FY2024 and #37 in FY2025; down 2 since FY2020.
41	Pine Meadow Holdings, LLC Through Oceus Networks, LLC Top agencies DOT (Department of Transportation)	$3,380,475	0.4%	Rank history: #20 in FY2022, #10 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
42	Intellisense Systems Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$3,361,707	0.4%	Rank history: #80 in FY2022 and not on the FY2023–FY2025 lists; up 4 since FY2020.
43	Heico Aerospace Corporat 5 awardees, including Seal Dynamics LLC, DB Control and Air Cost Control US, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) NASA (National Aeronautics and Space Administration)	$2,987,144	0.3%	Rank history: #37 in FY2022, not on the FY2023 list, #71 in FY2024 and #80 in FY2025; up 29 since FY2020.
44	Pioneer Industries, LLC Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) Navy (Department of the Navy)	$2,926,778	0.3%	Rank history: #66 in FY2022, #57 in FY2023, #55 in FY2024 and #69 in FY2025; down 5 since FY2020.
45	Transdigm Group Incorporated 14 awardees, including Acme Aerospace, Inc., Marathonnorco Aerospace, Inc. and Champion Aerospace LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$2,895,910	0.3%	Rank history: #38 in FY2022, #31 in FY2023 and not on the FY2024–FY2025 lists; down 23 since FY2020.
46	ECI Defense Group, Inc. 2 awardees Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$2,864,220	0.3%	Rank history: #52 in FY2022, #26 in FY2023, #38 in FY2024 and #48 in FY2025; up 3 since FY2020.
47	Murray Benjamin Electric Company LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) DOJ (Department of Justice)	$2,855,770	0.3%	Rank history: #64 in FY2022, #50 in FY2023, #30 in FY2024 and #31 in FY2025; up 18 since FY2020.
48	East Penn Manufacturing Co. 2 awardees, including Navitas Advanced Solutions Group LLC Top agencies Army (Department of the Army) Navy (Department of the Navy)	$2,849,395	0.3%	Rank history: #55 in FY2022 and not on the FY2023–FY2025 lists; up 112 since FY2020.
49	Government of Canada Through Canadian Commercial Corporation Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$2,825,483	0.3%	Rank history: #70 in FY2022, #64 in FY2023 and not on the FY2024–FY2025 lists; down 12 since FY2020.
50	Dcx-Chol Enterprises, Inc. 5 awardees Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) Army (Department of the Army)	$2,555,037	0.3%	Rank history: #39 in FY2022, #36 in FY2023, #41 in FY2024 and not on the FY2025 list; down 18 since FY2020.
51	Par Defense Industries, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) Army (Department of the Army)	$2,410,909	0.3%	Rank history: #74 in FY2022, #41 in FY2023, not on the FY2024 list and #60 in FY2025; up 119 since FY2020.
52	First Logistex, Inc. Top agencies DOT (Department of Transportation)	$2,393,203	0.3%	Rank history: #61 in FY2022, #23 in FY2023, #67 in FY2024 and #84 in FY2025; up 47 since FY2020.
53	Ametek Inc. 8 awardees, including Ametek SCP Inc., Ametek Programmable Power, Inc. and Intellipower, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) NASA (National Aeronautics and Space Administration)	$2,343,636	0.3%	Rank history: #58 in FY2022, #21 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
54	Ordnance Technology Service, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$2,298,997	0.3%	Rank history: not on the FY2022–FY2023 lists, #63 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
55	Excelitas Technologies Corp. Top agencies Navy (Department of the Navy)	$2,258,606	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
56	Great Plains Communications LLC Through Strantech LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DISA (Defense Information Systems Agency)	$2,248,421	0.2%	Rank history: #9 in FY2022 and not on the FY2023–FY2025 lists; down 25 since FY2020.
57	Rev-Cap Company, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) Army (Department of the Army)	$2,247,637	0.2%	Rank history: #72 in FY2022, #40 in FY2023, #48 in FY2024 and #22 in FY2025; down 14 since FY2020.
58	Evolution Interconnect Systems, Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$2,239,588	0.2%	Rank history: not on the FY2022–FY2025 lists; up 54 since FY2020.
59	Maetec Power, LLC Top agencies DOT (Department of Transportation)	$2,156,980	0.2%	Rank history: #50 in FY2022, #30 in FY2023 and not on the FY2024–FY2025 lists; up 48 since FY2020.
60	The Boeing Company 8 awardees, including Argon ST, Inc., Liquid Robotics, Inc. and Insitu, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$2,136,023	0.2%	Rank history: #8 in FY2022, #7 in FY2023, #17 in FY2024 and #19 in FY2025; new, not ranked in FY2020.
61	Aish Technologies Ltd Through Rivencore Global Solutions Limited Top agencies Navy (Department of the Navy)	$2,069,689	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
62	Pulsetech Products Corporation Top agencies DLA (Defense Logistics Agency)	$1,959,291	0.2%	Rank history: #85 in FY2022, #52 in FY2023, #87 in FY2024 and #45 in FY2025; down 9 since FY2020.
63	J.g.w. (International) Ltd. Top agencies DLA (Defense Logistics Agency)	$1,887,044	0.2%	Rank history: not on the FY2022 list, #45 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
64	Phoenix Trading Inc. Top agencies DLA (Defense Logistics Agency)	$1,863,493	0.2%	Rank history: not on the FY2022–FY2025 lists; up 53 since FY2020.
65	Envision Solar International Inc. Through Beam Global Top agencies Navy (Department of the Navy)	$1,794,455	0.2%	Rank history: #36 in FY2022, #29 in FY2023, #31 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
66	Ultra Electronics Forensic Technology Inc 4 awardees, including Ems Development Corporation, 3 Phoenix, Inc. and Ultra Electronics TCS Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,781,432	0.2%	Rank history: not on the FY2022–FY2023 lists, #29 in FY2024 and #73 in FY2025; down 8 since FY2020.
67	TNL Sales LLC Top agencies DLA (Defense Logistics Agency)	$1,685,410	0.2%	Rank history: not on the FY2022–FY2025 lists; down 16 since FY2020.
68	P.a.r. Products Co Top agencies DLA (Defense Logistics Agency)	$1,683,220	0.2%	Rank history: #27 in FY2022, not on the FY2023–FY2024 lists and #43 in FY2025; up 13 since FY2020.
69	Fiamm Energy Technology (USA) LLC Top agencies DLA (Defense Logistics Agency)	$1,546,776	0.2%	Rank history: not on the FY2022–FY2025 lists; up 26 since FY2020.
70	Calgon Carbon Corporation Top agencies Army (Department of the Army)	$1,539,375	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
71	Bahfed Corp Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DOT (Department of Transportation)	$1,531,991	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
72	Marvin Engineering Co, Inc. 3 awardees, including Marvin Land Systems, Inc. and Flyer Defense, LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) DLA (Defense Logistics Agency)	$1,524,874	0.2%	Rank history: not on the FY2022–FY2025 lists; down 11 since FY2020.
73	Lynn Electronics LLC Top agencies DLA (Defense Logistics Agency)	$1,522,764	0.2%	Rank history: not on the FY2022–FY2025 lists; up 13 since FY2020.
74	Crane Co 5 awardees, including Hydro-Aire Aerospace Corp and Eldec Aerospace Corp Top agencies DLA (Defense Logistics Agency)	$1,485,674	0.2%	Rank history: #47 in FY2022, #67 in FY2023 and not on the FY2024–FY2025 lists; down 22 since FY2020.
75	Triman Industries Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,458,735	0.2%	Rank history: #62 in FY2022, #60 in FY2023, #70 in FY2024 and #36 in FY2025; up 91 since FY2020.
76	Technology Dynamics, Inc. 2 awardees Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,425,948	0.2%	Rank history: not on the FY2022–FY2025 lists; up 214 since FY2020.
77	Martin Military Inc. Top agencies DLA (Defense Logistics Agency)	$1,423,598	0.2%	Rank history: #83 in FY2022, #71 in FY2023, #81 in FY2024 and #71 in FY2025; up 8 since FY2020.
78	United Support Solutions - LMT Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,422,839	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
79	Amsted Graphite Materials LLC Top agencies Navy (Department of the Navy)	$1,402,896	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
80	Astro Digital US Inc. Top agencies Navy (Department of the Navy)	$1,400,000	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
81	Crowder Industrial Construction LLC Top agencies Army (Department of the Army)	$1,385,988	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
82	Unistar-Sparco Computers, Inc. Top agencies Navy (Department of the Navy)	$1,362,930	0.1%	Rank history: not on the FY2022 list, #84 in FY2023, #44 in FY2024 and #76 in FY2025; down 27 since FY2020.
83	PTS Expeditionary Communications, Inc. Top agencies DLA (Defense Logistics Agency)	$1,358,846	0.1%	Rank history: #44 in FY2022, #65 in FY2023, #88 in FY2024 and not on the FY2025 list; down 68 since FY2020.
84	Echelon Supply and Service, Inc. Top agencies DLA (Defense Logistics Agency)	$1,352,243	0.1%	Rank history: not on the FY2022–FY2025 lists; up 25 since FY2020.
85	ACE Electronics Defense Systems, LLC Top agencies Army (Department of the Army) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,309,762	0.1%	Rank history: #35 in FY2022, #3 in FY2023, #13 in FY2024 and #11 in FY2025; down 16 since FY2020.
86	Battery Service Corporation Top agencies DLA (Defense Logistics Agency)	$1,252,334	0.1%	Rank history: #100 in FY2022 and not on the FY2023–FY2025 lists; up 17 since FY2020.
87	Hytech Associates Incorporated Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,194,999	0.1%	Rank history: not on the FY2022–FY2024 lists and #68 in FY2025; up 92 since FY2020.
88	Military Battery Systems Inc. Top agencies DLA (Defense Logistics Agency)	$1,184,898	0.1%	Rank history: not on the FY2022–FY2025 lists; up 90 since FY2020.
89	Caton Connector Corporation Top agencies Navy (Department of the Navy)	$1,167,963	0.1%	Rank history: not on the FY2022 list, #47 in FY2023 and not on the FY2024–FY2025 lists; up 85 since FY2020.
90	Danaher Corporation 2 awardees, including Superior Electric Holding Group LLC and Pall Aeropower Corporation Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,167,034	0.1%	Rank history: not on the FY2022–FY2025 lists; up 15 since FY2020.
91	Tessec LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$1,161,539	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
92	Remy Battery Co Inc. Top agencies DLA (Defense Logistics Agency)	$1,132,047	0.1%	Rank history: #89 in FY2022, not on the FY2023 list, #58 in FY2024 and #24 in FY2025; up 26 since FY2020.
93	United Equipment, Inc. Top agencies DLA (Defense Logistics Agency)	$1,125,232	0.1%	Rank history: not on the FY2022–FY2025 lists; up 161 since FY2020.
94	Hydra-Electric Company Top agencies DLA (Defense Logistics Agency)	$1,089,889	0.1%	Rank history: not on the FY2022–FY2023 lists, #94 in FY2024 and not on the FY2025 list; up 39 since FY2020.
95	Aarcorp Through AAR Supply Chain, Inc. Top agencies DLA (Defense Logistics Agency)	$1,084,444	0.1%	Rank history: not on the FY2022–FY2025 lists; up 94 since FY2020.
96	Aircraft & Commercial Enterprises, Inc. Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$1,076,269	0.1%	Rank history: not on the FY2022 list, #86 in FY2023, not on the FY2024 list and #87 in FY2025; up 42 since FY2020.
97	FBC Enterprises LLC Top agencies DLA (Defense Logistics Agency)	$1,073,989	0.1%	Rank history: #60 in FY2022, #42 in FY2023, #43 in FY2024 and not on the FY2025 list; up 232 since FY2020.
98	Alpine Power Systems Inc. Top agencies DOE (Department of Energy) DHS (Department of Homeland Security) Navy (Department of the Navy)	$1,073,672	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
99	Showa Denko K.K. Through Fiamm Energy Technology (USA) LLC Top agencies DLA (Defense Logistics Agency)	$1,069,299	0.1%	Rank history: #41 in FY2022, #17 in FY2023, #80 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
100	Chemring Group PLC Through Chemring Energetic Devices Inc. Top agencies DLA (Defense Logistics Agency)	$1,068,896	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.

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100 of 2,139 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 3359

Code	Net obligations	Largest contractor
33599 All Other Electrical Equipment and Component Manufacturing	$481,362,879	Science Applications International Corporation
33591 Battery Manufacturing	$239,081,666	Enersys
335911 Storage Battery Manufacturing	$195,002,002	Enersys
33593 Wiring Device Manufacturing	$113,482,966	L3Harris Technologies, Inc.
33592 Communication and Energy Wire and Cable Manufacturing	$51,568,868	Seneca Global Services LLC
335912 Primary Battery Manufacturing	$44,079,664	Eastern Carolina Vocational Center 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 $919 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 3359 contractors in FY2021?

1. Science Applications International Corporation ($74.5M), 2. Enersys ($62.2M), 3. Saab AB ($55M), 4. Diversified Technologies, Inc. ($38.1M), 5. Lockheed Martin Corporation ($27.5M), 6. Seneca Global Services LLC ($23.5M), 7. Noble Sales Co. Inc. ($22.1M), 8. OM Group Inc. ($21.1M), 9. Leonardo S.p.A. ($19.9M), 10. Eaton Corporation ($19.1M).

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