Top 100 Contractors in NAICS 335931: Current-Carrying Wiring Device Manufacturing, FY2021

Name: Top 100 Contractors in NAICS 335931: Current-Carrying Wiring Device Manufacturing, FY2021
Creator: GovTribe

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

The top 10 won 27% of FY2021 NAICS 335931 contract dollars

Contract obligations: $104,282,297 Net of deobligations, by contracts coded NAICS 335931
Contractors: 858 Parent companies with an obligation
Largest contractor: L3Harris Technologies, Inc. $9.5 million, 8.3% 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	L3Harris Technologies, Inc. 13 awardees, including L3 Technologies, Inc., L3Harris Maritime Power & Energy Solutions, Inc. and CAE USA Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$9,498,040	8.3%	Rank history: #16 in FY2022, #11 in FY2023, not on the FY2024 list and #35 in FY2025; up 1 since FY2020.
2	Teledyne Technologies Incorporated Through Teledyne Instruments Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$2,930,793	2.6%	Rank history: #8 in FY2022, #57 in FY2023, #37 in FY2024 and not on the FY2025 list; up 45 since FY2020.
3	RPS Holdings, Inc. Through Rantec Power Systems Inc. Top agencies Navy (Department of the Navy)	$2,670,131	2.3%	Rank history: #15 in FY2022, not on the FY2023 list, #29 in FY2024 and not on the FY2025 list; up 28 since FY2020.
4	Government of Canada Through Canadian Commercial Corporation Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$2,430,993	2.1%	Rank history: #17 in FY2022, #13 in FY2023 and not on the FY2024–FY2025 lists; up 11 since FY2020.
5	Ordnance Technology Service, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$2,277,960	2.0%	Rank history: not on the FY2022 list, #54 in FY2023, #12 in FY2024 and #79 in FY2025; new, not ranked in FY2020.
6	Excelitas Technologies Corp. Top agencies Navy (Department of the Navy)	$2,258,606	2.0%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
7	Evolution Interconnect Systems, Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$2,239,588	2.0%	Rank history: #41 in FY2022 and not on the FY2023–FY2025 lists; up 27 since FY2020.
8	Aish Technologies Ltd Through Rivencore Global Solutions Limited Top agencies Navy (Department of the Navy)	$2,069,689	1.8%	Rank history: not on the FY2022–FY2025 lists; up 465 since FY2020.
9	Rev-Cap Company, Inc. Top agencies DLA (Defense Logistics Agency)	$2,008,429	1.8%	Rank history: #33 in FY2022, #15 in FY2023, #21 in FY2024 and #6 in FY2025; down 2 since FY2020.
10	The Boeing Company 5 awardees, including Argon ST, Inc., Boeing Distribution Services, Inc. and Insitu, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,952,559	1.7%	Rank history: #2 in FY2022, #4 in FY2023, #5 in FY2024 and #4 in FY2025; up 129 since FY2020.
11	Dcx-Chol Enterprises, Inc. 5 awardees Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) Army (Department of the Army)	$1,844,031	1.6%	Rank history: #18 in FY2022, #9 in FY2023, #20 in FY2024 and not on the FY2025 list; unchanged since FY2020.
12	BAE Systems PLC 4 awardees, including BAE Systems Controls Inc., BAE Systems Land & Armaments L.P. and BAE Systems Information and Electronic Systems Integration Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$1,591,762	1.4%	Rank history: not on the FY2022–FY2025 lists; up 8 since FY2020.
13	Jo-Kell Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,474,925	1.3%	Rank history: #51 in FY2022, #24 in FY2023, #16 in FY2024 and #11 in FY2025; up 15 since FY2020.
14	Marvin Engineering Co, Inc. 2 awardees, including Marvin Land Systems, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) DLA (Defense Logistics Agency)	$1,439,612	1.3%	Rank history: not on the FY2022 list, #63 in FY2023, not on the FY2024 list and #40 in FY2025; down 5 since FY2020.
15	RTX Corporation 11 awardees, including Raytheon Company, Kidde Technologies, Inc. and Data Link Solutions LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) DOJ (Department of Justice)	$1,344,480	1.2%	Rank history: #14 in FY2022, #5 in FY2023, #33 in FY2024 and #13 in FY2025; down 14 since FY2020.
16	Technology Dynamics, Inc. 2 awardees Top agencies Navy (Department of the Navy)	$1,281,175	1.1%	Rank history: #96 in FY2022, #43 in FY2023, #67 in FY2024 and not on the FY2025 list; up 132 since FY2020.
17	Heico Aerospace Corporat 3 awardees, including Seal Dynamics LLC, Aerospace & Commercial Technologies, LLC and Air Cost Control US, LLC Top agencies DLA (Defense Logistics Agency)	$1,246,281	1.1%	Rank history: #21 in FY2022, #70 in FY2023, #22 in FY2024 and #26 in FY2025; up 8 since FY2020.
18	General Dynamics Corporation 9 awardees, including General Dynamics Information Technology, Inc., General Dynamics Mission Systems, Inc. and Electric Boat Corporation Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,239,749	1.1%	Rank history: not on the FY2022 list, #28 in FY2023, #30 in FY2024 and not on the FY2025 list; up 41 since FY2020.
19	TNL Sales LLC Top agencies DLA (Defense Logistics Agency)	$1,125,444	1.0%	Rank history: not on the FY2022–FY2024 lists and #85 in FY2025; down 9 since FY2020.
20	Hydra-Electric Company Top agencies DLA (Defense Logistics Agency)	$1,089,889	1.0%	Rank history: #35 in FY2022, #37 in FY2023, #28 in FY2024 and #45 in FY2025; up 23 since FY2020.
21	Chemring Group PLC Through Chemring Energetic Devices Inc. Top agencies DLA (Defense Logistics Agency)	$1,068,896	0.9%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
22	Martin Military Inc. Top agencies DLA (Defense Logistics Agency)	$1,011,679	0.9%	Rank history: #71 in FY2022, #40 in FY2023, #80 in FY2024 and #100 in FY2025; up 14 since FY2020.
23	Aircraft Engineering & Installation Services, Inc. Top agencies DLA (Defense Logistics Agency)	$994,111	0.9%	Rank history: not on the FY2022–FY2025 lists; up 110 since FY2020.
24	ADI American Distributors, LLC 3 awardees, including Newvac LLC and Microwave Components LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) DLA (Defense Logistics Agency)	$979,414	0.9%	Rank history: not on the FY2022 list, #7 in FY2023 and not on the FY2024–FY2025 lists; up 110 since FY2020.
25	ACE Electronics Defense Systems, LLC Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) Navy (Department of the Navy)	$934,559	0.8%	Rank history: #6 in FY2022, #1 in FY2023, #3 in FY2024 and #2 in FY2025; down 12 since FY2020.
26	Lynn Electronics LLC Top agencies DLA (Defense Logistics Agency)	$918,591	0.8%	Rank history: #38 in FY2022 and not on the FY2023–FY2025 lists; up 20 since FY2020.
27	Integrated Procurement Technologies Top agencies DLA (Defense Logistics Agency)	$869,997	0.8%	Rank history: #30 in FY2022, #19 in FY2023, #10 in FY2024 and not on the FY2025 list; up 23 since FY2020.
28	General Marine Products, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$857,173	0.8%	Rank history: #60 in FY2022, #34 in FY2023, #32 in FY2024 and not on the FY2025 list; up 27 since FY2020.
29	Murray Benjamin Electric Company LLC Top agencies Navy (Department of the Navy)	$799,840	0.7%	Rank history: #66 in FY2022, not on the FY2023–FY2024 lists and #43 in FY2025; up 3 since FY2020.
30	Hansome Energy Systems Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$778,294	0.7%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
31	RIX Industries Top agencies Navy (Department of the Navy)	$773,150	0.7%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
32	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$755,441	0.7%	Rank history: #28 in FY2022, #18 in FY2023, #45 in FY2024 and #15 in FY2025; down 2 since FY2020.
33	ECI Defense Group, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$735,500	0.6%	Rank history: not on the FY2022 list, #21 in FY2023, #98 in FY2024 and #47 in FY2025; new, not ranked in FY2020.
34	Fairbanks Morse LLC Top agencies Navy (Department of the Navy)	$721,056	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
35	Centron Industries Inc. Top agencies Army (Department of the Army)	$714,967	0.6%	Rank history: not on the FY2022–FY2024 lists and #65 in FY2025; down 29 since FY2020.
36	Science Applications International Corporation 2 awardees, including Asrc Federal Facilities Logistics, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$691,772	0.6%	Rank history: #20 in FY2022, #14 in FY2023 and not on the FY2024–FY2025 lists; up 29 since FY2020.
37	Gate Industries Top agencies DLA (Defense Logistics Agency)	$655,869	0.6%	Rank history: not on the FY2022–FY2025 lists; up 8 since FY2020.
38	R & D Electronics, Inc. Top agencies Army (Department of the Army)	$653,224	0.6%	Rank history: not on the FY2022–FY2025 lists; up 4 since FY2020.
39	Pulsetech Products Corporation Top agencies DLA (Defense Logistics Agency)	$652,719	0.6%	Rank history: not on the FY2022 list, #16 in FY2023, #31 in FY2024 and #39 in FY2025; up 120 since FY2020.
40	TPC Wire & Cable Corp. Top agencies Navy (Department of the Navy)	$607,795	0.5%	Rank history: #58 in FY2022, #69 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
41	Transdigm Group Incorporated 9 awardees, including Champion Aerospace LLC, Palomar Products, Inc. and Mason Electric Co. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$604,093	0.5%	Rank history: #43 in FY2022, #23 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2020.
42	Phoenix Trading Inc. Top agencies DLA (Defense Logistics Agency)	$602,562	0.5%	Rank history: not on the FY2022–FY2025 lists; up 38 since FY2020.
43	Howden North America Inc. Top agencies Navy (Department of the Navy)	$600,000	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
44	Statz Corp Top agencies DLA (Defense Logistics Agency)	$588,368	0.5%	Rank history: not on the FY2022–FY2025 lists; up 88 since FY2020.
45	B.j. Wolfe Enterprises, Inc. Top agencies Army (Department of the Army)	$584,375	0.5%	Rank history: not on the FY2022–FY2025 lists; up 335 since FY2020.
46	Leonardo S.p.A. 8 awardees, including DRS Naval Power Systems Inc., DRS Advanced ISR LLC and DRS Training & Control Systems, LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$582,064	0.5%	Rank history: #7 in FY2022, #3 in FY2023, #2 in FY2024 and #3 in FY2025; down 22 since FY2020.
47	Gentex Corporation 3 awardees Top agencies DLA (Defense Logistics Agency)	$551,093	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
48	Dutch Valley Supply Co. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) Navy (Department of the Navy)	$550,577	0.5%	Rank history: #75 in FY2022, not on the FY2023 list, #86 in FY2024 and #73 in FY2025; up 95 since FY2020.
49	General Dynamics Mission Systems, Inc. Top agencies Navy (Department of the Navy)	$544,659	0.5%	Rank history: #34 in FY2022, not on the FY2023 list, #11 in FY2024 and not on the FY2025 list; up 8 since FY2020.
50	The Collective International FZE Top agencies USAF (Department of the Air Force)	$540,102	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
51	Ametek Inc. 4 awardees, including Ametek SCP Inc. and Ametek Programmable Power, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$539,448	0.5%	Rank history: #26 in FY2022, #91 in FY2023, not on the FY2024 list and #82 in FY2025; up 263 since FY2020.
52	Glenair, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$537,031	0.5%	Rank history: #73 in FY2022, #36 in FY2023, not on the FY2024 list and #36 in FY2025; up 200 since FY2020.
53	Lockheed Martin Corporation 6 awardees Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$515,981	0.5%	Rank history: #57 in FY2022, #8 in FY2023, #6 in FY2024 and #1 in FY2025; down 5 since FY2020.
54	Hi REL Connectors, Inc. Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$500,635	0.4%	Rank history: #32 in FY2022, not on the FY2023–FY2024 lists and #37 in FY2025; up 30 since FY2020.
55	ACE Electronics of N.j., Inc. Top agencies DLA (Defense Logistics Agency)	$499,853	0.4%	Rank history: #36 in FY2022, not on the FY2023 list, #83 in FY2024 and not on the FY2025 list; up 11 since FY2020.
56	Adirondack Electronics Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$495,476	0.4%	Rank history: #64 in FY2022, not on the FY2023 list, #56 in FY2024 and not on the FY2025 list; up 61 since FY2020.
57	Jgils, LLC Top agencies DLA (Defense Logistics Agency)	$493,381	0.4%	Rank history: #65 in FY2022, #89 in FY2023, #65 in FY2024 and not on the FY2025 list; up 14 since FY2020.
58	Field Aviation, Inc. Through Ases LLC Top agencies DLA (Defense Logistics Agency)	$492,934	0.4%	Rank history: not on the FY2022–FY2025 lists; up 228 since FY2020.
59	Thales 2 awardees, including Thales Defense & Security Inc. and Thales Usa, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$476,099	0.4%	Rank history: #93 in FY2022 and not on the FY2023–FY2025 lists; down 15 since FY2020.
60	Custom Manufacturing & Engineering, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$475,258	0.4%	Rank history: not on the FY2022–FY2025 lists; up 22 since FY2020.
61	Jag Components, LLC Top agencies DLA (Defense Logistics Agency)	$467,281	0.4%	Rank history: not on the FY2022–FY2025 lists; up 162 since FY2020.
62	Ricoh Company,Ltd. Through Ricoh USA Inc. Top agencies Treasury (Department of the Treasury) DHS (Department of Homeland Security)	$466,770	0.4%	Rank history: #44 in FY2022 and not on the FY2023–FY2025 lists; up 7 since FY2020.
63	Furuno Electric Co. Ltd. Through Furuno U.s.a Inc. Top agencies Navy (Department of the Navy)	$454,725	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
64	Moog Inc. 2 awardees Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$445,651	0.4%	Rank history: not on the FY2022–FY2025 lists; up 260 since FY2020.
65	Tabet Manufacturing Company, Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$444,723	0.4%	Rank history: #5 in FY2022, #6 in FY2023, #27 in FY2024 and not on the FY2025 list; down 60 since FY2020.
66	Midcon Cables Co., Inc. Top agencies Army (Department of the Army)	$441,886	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
67	Marisco, Ltd. Through American Metal Bearing Co Top agencies Navy (Department of the Navy)	$437,279	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
68	Echelon Supply and Service, Inc. Top agencies DLA (Defense Logistics Agency)	$435,441	0.4%	Rank history: not on the FY2022–FY2025 lists; up 2 since FY2020.
69	Par Defense Industries, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$426,898	0.4%	Rank history: #55 in FY2022, #46 in FY2023, #41 in FY2024 and #31 in FY2025; up 35 since FY2020.
70	U.s. Hardware Supply, Inc. Top agencies DLA (Defense Logistics Agency)	$417,060	0.4%	Rank history: #85 in FY2022, #64 in FY2023, #62 in FY2024 and not on the FY2025 list; up 20 since FY2020.
71	Berkshire Hathaway Inc. 2 awardees, including Tti, Inc. and Mouser Electronics, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$397,133	0.3%	Rank history: #81 in FY2022 and not on the FY2023–FY2025 lists; up 54 since FY2020.
72	Hensoldt Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$388,995	0.3%	Rank history: not on the FY2022–FY2025 lists; up 169 since FY2020.
73	Communications & Ear Protection, Inc. Top agencies DLA (Defense Logistics Agency)	$381,503	0.3%	Rank history: not on the FY2022–FY2023 lists, #100 in FY2024 and not on the FY2025 list; up 65 since FY2020.
74	Burhani Enterprises Inc. Top agencies DLA (Defense Logistics Agency)	$366,830	0.3%	Rank history: not on the FY2022–FY2025 lists; up 133 since FY2020.
75	Tidewater Marine Electric LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$355,524	0.3%	Rank history: #80 in FY2022 and not on the FY2023–FY2025 lists; up 38 since FY2020.
76	Sigma-Netics, Inc. Top agencies DLA (Defense Logistics Agency)	$352,041	0.3%	Rank history: not on the FY2022–FY2023 lists, #77 in FY2024 and not on the FY2025 list; up 136 since FY2020.
77	TE Connectivity Corporation 4 awardees, including Brantner and Associates, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$349,909	0.3%	Rank history: not on the FY2022–FY2025 lists; up 69 since FY2020.
78	Woodard Electric Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$343,595	0.3%	Rank history: not on the FY2022–FY2025 lists; up 22 since FY2020.
79	Cobham Advanced Electron 2 awardees, including Frontgrade Technologies Inc. and Mission Systems Davenport Inc. Top agencies Navy (Department of the Navy)	$340,198	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
80	Maven Engineering Corporation Top agencies DLA (Defense Logistics Agency)	$334,840	0.3%	Rank history: not on the FY2022 list, #55 in FY2023 and not on the FY2024–FY2025 lists; up 49 since FY2020.
81	Quasar Power & Technologies Inc. Top agencies Navy (Department of the Navy)	$333,832	0.3%	Rank history: #54 in FY2022 and not on the FY2023–FY2025 lists; down 55 since FY2020.
82	Aarcorp Through AAR Supply Chain, Inc. Top agencies DLA (Defense Logistics Agency)	$330,379	0.3%	Rank history: #47 in FY2022, #77 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2020.
83	Crane Co 3 awardees, including Eldec Aerospace Corp and Hydro-Aire Aerospace Corp. Top agencies DLA (Defense Logistics Agency)	$328,168	0.3%	Rank history: #49 in FY2022 and not on the FY2023–FY2025 lists; down 20 since FY2020.
84	Magnetic Design Labs Inc. Top agencies DLA (Defense Logistics Agency)	$323,922	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
85	Pioneer Industries, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$312,071	0.3%	Rank history: #86 in FY2022, not on the FY2023 list, #24 in FY2024 and #77 in FY2025; down 45 since FY2020.
86	Noble Sales Co. Inc. Through Tactical & Survival Specialties, LLC Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$304,619	0.3%	Rank history: #9 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
87	Westsim Engineering, Inc. Top agencies DLA (Defense Logistics Agency)	$303,417	0.3%	Rank history: #83 in FY2022 and not on the FY2023–FY2025 lists; up 55 since FY2020.
88	Dgci Corporation Through Joint Venture Interconnection Cable LLC Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$293,174	0.3%	Rank history: #46 in FY2022, #26 in FY2023, #8 in FY2024 and not on the FY2025 list; down 85 since FY2020.
89	General Electric Company Through GE Energy Power Conversion USA Inc. Top agencies Navy (Department of the Navy)	$291,564	0.3%	Rank history: not on the FY2022–FY2025 lists; up 251 since FY2020.
90	S I T Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) DHS (Department of Homeland Security)	$284,454	0.2%	Rank history: not on the FY2022–FY2023 lists, #51 in FY2024 and #41 in FY2025; up 8 since FY2020.
91	Northrop Grumman Corporation 5 awardees, including Northrop Grumman Systems Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$280,824	0.2%	Rank history: #69 in FY2022, #22 in FY2023, #15 in FY2024 and #44 in FY2025; down 74 since FY2020.
92	Dela Technology Corporation Top agencies DLA (Defense Logistics Agency)	$255,279	0.2%	Rank history: not on the FY2022–FY2025 lists; up 49 since FY2020.
93	Stealth Supply, Inc. Top agencies DLA (Defense Logistics Agency)	$253,954	0.2%	Rank history: not on the FY2022–FY2025 lists; up 15 since FY2020.
94	Stryten Energy LLC Top agencies DLA (Defense Logistics Agency)	$249,500	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
95	Warfighter Focused Logistics Inc. Top agencies DLA (Defense Logistics Agency)	$244,700	0.2%	Rank history: not on the FY2022 list, #73 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
96	Electro Enterprises Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$241,276	0.2%	Rank history: #61 in FY2022, #76 in FY2023, #47 in FY2024 and not on the FY2025 list; down 23 since FY2020.
97	Meggitt PLC Through Meggitt Defense Systems, Inc. Top agencies Navy (Department of the Navy)	$235,952	0.2%	Rank history: not on the FY2022–FY2025 lists; up 326 since FY2020.
98	Woodward Governor Company Through Woodward HRT Inc. Top agencies DLA (Defense Logistics Agency)	$235,902	0.2%	Rank history: not on the FY2022–FY2025 lists; up 334 since FY2020.
99	Brighton Cromwell LLC Top agencies DLA (Defense Logistics Agency)	$229,301	0.2%	Rank history: not on the FY2022–FY2025 lists; up 211 since FY2020.
100	SSI Technology Inc. Top agencies DLA (Defense Logistics Agency)	$228,320	0.2%	Rank history: #56 in FY2022 and not on the FY2023–FY2025 lists; down 32 since FY2020.

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100 of 858 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 $114 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 335931 contractors in FY2021?

1. L3Harris Technologies, Inc. ($9.5M), 2. Teledyne Technologies Incorporated ($2.93M), 3. RPS Holdings, Inc. ($2.67M), 4. Government of Canada ($2.43M), 5. Ordnance Technology Service, Inc. ($2.28M), 6. Excelitas Technologies Corp. ($2.26M), 7. Evolution Interconnect Systems, Inc. ($2.24M), 8. Aish Technologies Ltd ($2.07M), 9. Rev-Cap Company, Inc. ($2.01M), 10. The Boeing Company ($1.95M).

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