Top 100 Contractors in NAICS 33429: Other Communications Equipment Manufacturing, FY2021

Name: Top 100 Contractors in NAICS 33429: Other Communications 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 78% of FY2021 NAICS 33429 contract dollars

Contract obligations: $2,085,719,376 Net of deobligations, by contracts coded NAICS 33429 or a code under it
Contractors: 904 Parent companies with an obligation
Largest contractor: L3Harris Technologies, Inc. $572 million, 26.7% 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. 18 awardees, including L3Harris Global Communications, Inc., L3 Technologies, Inc. and L3Harris Nexgen Communications LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$572,445,883	26.7%	Rank history: #1 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; up 1 since FY2020.
2	RTX Corporation 22 awardees, including Data Link Solutions LLC, Rockwell Collins, Inc. and Raytheon Company Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$385,230,501	18.0%	Rank history: #2 in FY2022, #2 in FY2023, #2 in FY2024 and #2 in FY2025; down 1 since FY2020.
3	Viasat Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$251,984,224	11.8%	Rank history: #3 in FY2022, #3 in FY2023, #3 in FY2024 and #4 in FY2025; unchanged since FY2020.
4	General Dynamics Corporation 10 awardees, including General Dynamics Mission Systems, Inc., General Dynamics Land Systems Inc. and Electric Boat Corporation Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$206,133,381	9.6%	Rank history: #4 in FY2022, #4 in FY2023, #4 in FY2024 and #6 in FY2025; unchanged since FY2020.
5	Euromids Top agencies Navy (Department of the Navy)	$55,469,740	2.6%	Rank history: #13 in FY2022, #6 in FY2023, #5 in FY2024 and #8 in FY2025; up 5 since FY2020.
6	Serco North America (Holdings) Inc Through Serco Inc. Top agencies Navy (Department of the Navy)	$52,109,085	2.4%	Rank history: #7 in FY2022, #7 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2020.
7	BAE Systems PLC 5 awardees, including BAE Systems Technology Solutions & Services Inc., BAE Systems Information and Electronic Systems Integration Inc. and BAE Systems Applied Intelligence Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DOJ (Department of Justice)	$45,402,464	2.1%	Rank history: #9 in FY2022, #11 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2020.
8	JSI Telecom Inc. 2 awardees Top agencies DOJ (Department of Justice) DHS (Department of Homeland Security)	$39,820,944	1.9%	Rank history: #16 in FY2022, #20 in FY2023, #21 in FY2024 and #15 in FY2025; up 4 since FY2020.
9	Rockwell Collins, Inc. 2 awardees Top agencies Navy (Department of the Navy)	$35,706,524	1.7%	Rank history: not on the FY2022–FY2025 lists; up 24 since FY2020.
10	Minuteman Security Solutions LLC Top agencies Army (Department of the Army)	$27,624,539	1.3%	Rank history: #11 in FY2022, #12 in FY2023, #12 in FY2024 and #23 in FY2025; up 7 since FY2020.
11	Johnson Controls Security Solutions LLC 8 awardees, including Johnson Controls, Inc. and Johnson Controls Fire Protection LP Top agencies Army (Department of the Army) HHS (Department of Health and Human Services) VA (Department of Veterans Affairs)	$26,356,908	1.2%	Rank history: #6 in FY2022, #47 in FY2023 and not on the FY2024–FY2025 lists; up 8 since FY2020.
12	Data Link Solutions LLC Top agencies Navy (Department of the Navy)	$24,997,413	1.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
13	SRC Inc. Through Srctec, LLC Top agencies Army (Department of the Army)	$20,045,592	0.9%	Rank history: #90 in FY2022, #95 in FY2023 and not on the FY2024–FY2025 lists; up 14 since FY2020.
14	Sigma Defense Systems LLC Top agencies DISA (Defense Information Systems Agency) DFAS (Defense Finance and Accounting Service) USAF (Department of the Air Force)	$19,063,708	0.9%	Rank history: #12 in FY2022, #9 in FY2023, #6 in FY2024 and #16 in FY2025; down 6 since FY2020.
15	Vectrus Systems Corporation Through Advantor Systems II LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army) USSOCOM (United States Special Operations Command)	$15,112,714	0.7%	Rank history: #10 in FY2022, #21 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2020.
16	Eccalon, LLC Top agencies OSD (Office of the Secretary of Defense)	$15,023,459	0.7%	Rank history: #15 in FY2022, #16 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2020.
17	Frontier Electronic Systems Corp Top agencies Navy (Department of the Navy)	$13,625,070	0.6%	Rank history: #23 in FY2022, #30 in FY2023 and not on the FY2024–FY2025 lists; up 23 since FY2020.
18	Pen-Link, Ltd Top agencies DOJ (Department of Justice) DOS (Department of State)	$11,350,454	0.5%	Rank history: #24 in FY2022, #33 in FY2023, #82 in FY2024 and #93 in FY2025; up 13 since FY2020.
19	Corp Ten International Through DTC Communications, Inc. Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice) DOS (Department of State)	$9,312,523	0.4%	Rank history: #17 in FY2022 and not on the FY2023–FY2025 lists; up 19 since FY2020.
20	Centurum Inc. Through Centurum Information Technology Inc. Top agencies Navy (Department of the Navy)	$8,923,750	0.4%	Rank history: #14 in FY2022, #5 in FY2023, #26 in FY2024 and not on the FY2025 list; up 5 since FY2020.
21	Leonardo S.p.A. 5 awardees, including Laurel Technologies Partnership, DRS Advanced ISR LLC and DRS Naval Power Systems Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$8,827,234	0.4%	Rank history: #5 in FY2022, #14 in FY2023, #15 in FY2024 and #9 in FY2025; down 7 since FY2020.
22	Antenna Research Associates, Incorporated Through Aqyr Technologies Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$7,989,061	0.4%	Rank history: #33 in FY2022, #24 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
23	Government of Canada Through Canadian Commercial Corporation Top agencies Navy (Department of the Navy)	$7,928,627	0.4%	Rank history: not on the FY2022–FY2025 lists; up 6 since FY2020.
24	Caci Photonics, LLC Top agencies USAF (Department of the Air Force)	$7,709,198	0.4%	Rank history: #30 in FY2022 and not on the FY2023–FY2025 lists; unchanged since FY2020.
25	Trane U.S. Inc. 2 awardees Top agencies GSA (General Services Administration) USAF (Department of the Air Force) VA (Department of Veterans Affairs)	$7,557,785	0.4%	Rank history: #25 in FY2022, #23 in FY2023, #22 in FY2024 and #25 in FY2025; up 24 since FY2020.
26	Cobham Advanced Electron 4 awardees, including Cobham Exeter, Inc. and Frontgrade Technologies Inc. Top agencies Navy (Department of the Navy) DOT (Department of Transportation)	$7,403,780	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
27	Griffon Corporation 2 awardees, including Telephonics Corp Top agencies Army (Department of the Army) DHS (Department of Homeland Security) Navy (Department of the Navy)	$6,832,971	0.3%	Rank history: #21 in FY2022, #19 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2020.
28	Cellebrite Inc. Top agencies DHS (Department of Homeland Security) DOS (Department of State) DOI (Department of the Interior)	$5,943,142	0.3%	Rank history: #27 in FY2022, #26 in FY2023 and not on the FY2024–FY2025 lists; up 11 since FY2020.
29	Sanmina-SCI Corporation Through SCI Technology, Inc. Top agencies Navy (Department of the Navy)	$5,900,540	0.3%	Rank history: #41 in FY2022, #39 in FY2023 and not on the FY2024–FY2025 lists; up 18 since FY2020.
30	Lockheed Martin Corporation 8 awardees, including Lockheed Martin Sippican, Inc. Top agencies Navy (Department of the Navy)	$5,505,865	0.3%	Rank history: not on the FY2022 list, #27 in FY2023, #11 in FY2024 and #17 in FY2025; up 4 since FY2020.
31	Standard Communications Inc. Top agencies VA (Department of Veterans Affairs)	$5,046,669	0.2%	Rank history: not on the FY2022–FY2025 lists; up 35 since FY2020.
32	Geotab USA Inc. Top agencies USAF (Department of the Air Force) VA (Department of Veterans Affairs)	$4,290,561	0.2%	Rank history: #32 in FY2022, #17 in FY2023, #9 in FY2024 and #14 in FY2025; up 366 since FY2020.
33	Compunetix Inc. Top agencies USAF (Department of the Air Force) NASA (National Aeronautics and Space Administration) Navy (Department of the Navy)	$4,275,908	0.2%	Rank history: #61 in FY2022, #38 in FY2023, #48 in FY2024 and #85 in FY2025; up 82 since FY2020.
34	Systems Engineering Support Co. Top agencies Navy (Department of the Navy)	$4,130,269	0.2%	Rank history: #50 in FY2022 and not on the FY2023–FY2025 lists; up 21 since FY2020.
35	The Mitre Corporation Top agencies DOJ (Department of Justice)	$3,751,678	0.2%	Rank history: #54 in FY2022 and not on the FY2023–FY2025 lists; up 135 since FY2020.
36	Quasonix, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) NASA (National Aeronautics and Space Administration)	$3,547,000	0.2%	Rank history: not on the FY2022–FY2023 lists, #57 in FY2024 and not on the FY2025 list; up 24 since FY2020.
37	Security Install Solutions, Inc. Top agencies DHS (Department of Homeland Security) GSA (General Services Administration) DOI (Department of the Interior)	$3,007,958	0.1%	Rank history: #71 in FY2022, #32 in FY2023, #83 in FY2024 and not on the FY2025 list; up 91 since FY2020.
38	G2K Labs Inc. Top agencies DOJ (Department of Justice)	$2,988,714	0.1%	Rank history: #34 in FY2022, #85 in FY2023, #53 in FY2024 and #37 in FY2025; up 21 since FY2020.
39	Signet Technologies Inc. 2 awardees, including Convergint Technologies LLC Top agencies HHS (Department of Health and Human Services) VA (Department of Veterans Affairs) EPA (Environmental Protection Agency)	$2,936,332	0.1%	Rank history: #40 in FY2022, #41 in FY2023, #41 in FY2024 and not on the FY2025 list; up 80 since FY2020.
40	Honeywell International Inc. 10 awardees, including Vindicator Technologies, Inc., Rocky Research and Ems Technologies Canada, Ltd Top agencies Army (Department of the Army) Navy (Department of the Navy) VA (Department of Veterans Affairs)	$2,867,835	0.1%	Rank history: #29 in FY2022, #57 in FY2023, #64 in FY2024 and #19 in FY2025; up 5 since FY2020.
41	Transdigm Group Incorporated 6 awardees, including Palomar Products, Inc., Aerosonic LLC and Champion Aerospace LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$2,774,028	0.1%	Rank history: #31 in FY2022, #81 in FY2023 and not on the FY2024–FY2025 lists; up 37 since FY2020.
42	Signal Technologies, Incorporated Top agencies VA (Department of Veterans Affairs)	$2,642,000	0.1%	Rank history: not on the FY2022–FY2025 lists; up 311 since FY2020.
43	Karcher Group Inc. Top agencies USAF (Department of the Air Force) DOJ (Department of Justice) Navy (Department of the Navy)	$2,579,362	0.1%	Rank history: #58 in FY2022, #44 in FY2023, #36 in FY2024 and #51 in FY2025; up 34 since FY2020.
44	Graybar Electric Company, Inc. 2 awardees Top agencies SSA (Social Security Administration) USAF (Department of the Air Force) Navy (Department of the Navy)	$2,543,633	0.1%	Rank history: #36 in FY2022, #49 in FY2023, #38 in FY2024 and #55 in FY2025; up 48 since FY2020.
45	Datapath Inc. Top agencies Army (Department of the Army)	$2,461,492	0.1%	Rank history: not on the FY2022–FY2025 lists; down 32 since FY2020.
46	Ntrepid Corporation Top agencies DOJ (Department of Justice)	$2,453,460	0.1%	Rank history: #45 in FY2022, #53 in FY2023 and not on the FY2024–FY2025 lists; up 21 since FY2020.
47	Monaco Enterprises, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) DHS (Department of Homeland Security)	$2,290,723	0.1%	Rank history: #26 in FY2022, #36 in FY2023, #77 in FY2024 and #31 in FY2025; up 4 since FY2020.
48	Diversified Media Group, L.L.C. Through One Diversified LLC Top agencies DOJ (Department of Justice) GSA (General Services Administration) USDA (Department of Agriculture)	$2,257,478	0.1%	Rank history: not on the FY2022–FY2025 lists; up 227 since FY2020.
49	Dexter Apache Holdings Inc. Through Crystal Group, Inc. Top agencies Navy (Department of the Navy)	$2,126,250	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
50	ACG Systems, Inc. Top agencies DOJ (Department of Justice) DHS (Department of Homeland Security) GAO (Government Accountability Office)	$2,005,878	0.1%	Rank history: not on the FY2022–FY2025 lists; down 15 since FY2020.
51	Invisio Communications Inc. Top agencies Army (Department of the Army) DOJ (Department of Justice)	$2,004,006	0.1%	Rank history: #38 in FY2022, not on the FY2023–FY2024 lists and #38 in FY2025; down 5 since FY2020.
52	BAE Systems Land & Armaments L.P. Through BAE Systems Technology Solutions & Services Inc. Top agencies Navy (Department of the Navy)	$1,932,266	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
53	Noresco LLC 4 awardees, including Kidde Technologies Inc. and Honeywell Security Americas LLC Top agencies DLA (Defense Logistics Agency) VA (Department of Veterans Affairs)	$1,931,268	0.1%	Rank history: #76 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
54	Troy Sheet Metal Works, Inc. Top agencies DOJ (Department of Justice) Navy (Department of the Navy)	$1,881,544	0.1%	Rank history: #77 in FY2022 and not on the FY2023–FY2025 lists; up 16 since FY2020.
55	Dirac Solutions, Inc. Top agencies Army (Department of the Army)	$1,700,000	0.1%	Rank history: not on the FY2022–FY2025 lists; up 91 since FY2020.
56	Westnet, LLC Top agencies USAF (Department of the Air Force)	$1,642,119	0.1%	Rank history: not on the FY2022–FY2025 lists; up 75 since FY2020.
57	Identiv, Inc. 2 awardees, including Thursby Software Systems, LLC Top agencies Treasury (Department of the Treasury) AOUSC (Administrative Office of the U.S. Courts) DHS (Department of Homeland Security)	$1,591,888	0.1%	Rank history: #64 in FY2022, #60 in FY2023, #70 in FY2024 and #80 in FY2025; up 27 since FY2020.
58	Briartek Inc. Top agencies Navy (Department of the Navy)	$1,579,930	0.1%	Rank history: not on the FY2022–FY2025 lists; up 124 since FY2020.
59	Trace Systems Holdings Inc. Through Trace Systems, Inc. Top agencies USAF (Department of the Air Force)	$1,418,413	0.1%	Rank history: not on the FY2022–FY2025 lists; up 4 since FY2020.
60	Bunker Supply Co LLC Top agencies DHS (Department of Homeland Security)	$1,369,365	0.1%	Rank history: #96 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
61	G3 Technologies Inc. Top agencies Army (Department of the Army)	$1,350,000	0.1%	Rank history: not on the FY2022–FY2025 lists; up 297 since FY2020.
62	General Dynamics Mission Systems, Inc. Top agencies USAF (Department of the Air Force)	$1,295,123	0.1%	Rank history: #8 in FY2022, #61 in FY2023 and not on the FY2024–FY2025 lists; down 36 since FY2020.
63	Pioneer Energy Products, LLC Top agencies USDA (Department of Agriculture)	$1,235,006	0.1%	Rank history: #43 in FY2022, #59 in FY2023, #69 in FY2024 and not on the FY2025 list; up 25 since FY2020.
64	Hensoldt Inc. Top agencies Navy (Department of the Navy)	$1,228,610	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
65	Fiber Business Solutions Group Inc. Top agencies Navy (Department of the Navy)	$1,226,313	0.1%	Rank history: #65 in FY2022, not on the FY2023–FY2024 lists and #100 in FY2025; new, not ranked in FY2020.
66	RB Allen Co Inc. Top agencies DLA (Defense Logistics Agency)	$1,160,473	0.1%	Rank history: not on the FY2022 list, #74 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
67	ROK Systems Through Avasure, LLC Top agencies VA (Department of Veterans Affairs)	$1,096,718	0.1%	Rank history: not on the FY2022–FY2025 lists; up 26 since FY2020.
68	Benchmark Electronics, Inc. 2 awardees, including Secure Communication Systems, Inc. and Tactical Micro, Inc. Top agencies Army (Department of the Army) DOT (Department of Transportation)	$1,091,499	0.1%	Rank history: #59 in FY2022, #56 in FY2023 and not on the FY2024–FY2025 lists; up 29 since FY2020.
69	Newsat North America, LLC Top agencies Army (Department of the Army)	$1,005,126	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
70	Centurum Information Technology Inc. Top agencies Navy (Department of the Navy)	$998,541	<0.1%	Rank history: not on the FY2022–FY2023 lists, #16 in FY2024 and #10 in FY2025; down 33 since FY2020.
71	Packet Forensics LLC Top agencies Army (Department of the Army)	$997,400	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
72	HQE Systems, Inc. Top agencies USAF (Department of the Air Force) USSOCOM (United States Special Operations Command)	$949,164	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
73	New River Systems Corporation Top agencies Army (Department of the Army)	$941,737	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 105 since FY2020.
74	Scott Total Security Limited Top agencies USAF (Department of the Air Force)	$930,797	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
75	Innovative Collaboration Inc. Top agencies USAF (Department of the Air Force) DOT (Department of Transportation) DOS (Department of State)	$913,485	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 129 since FY2020.
76	Hurtvet Subcontracting, Inc. Top agencies VA (Department of Veterans Affairs)	$910,128	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
77	Motorola Inc 2 awardees, including Motorola Solutions, Inc. Top agencies Army (Department of the Army) USSOCOM (United States Special Operations Command) USAF (Department of the Air Force)	$898,113	<0.1%	Rank history: #52 in FY2022 and not on the FY2023–FY2025 lists; down 34 since FY2020.
78	Milpower, Inc. Top agencies Navy (Department of the Navy)	$873,605	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 25 since FY2020.
79	Ultra Electronics Forensic Technology Inc 5 awardees, including DNE Technologies, Inc., Undersea Sensor Systems Inc. and Caes Mission Systems LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$860,361	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 34 since FY2020.
80	Dynalec Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$848,125	<0.1%	Rank history: #48 in FY2022, #82 in FY2023, #87 in FY2024 and #68 in FY2025; down 11 since FY2020.
81	Orbit International Corp. Top agencies Navy (Department of the Navy)	$847,765	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 54 since FY2020.
82	Dover Corporation 3 awardees, including Pole / Zero LLC and Dover Pumps & Process Solutions Segment Inc. Top agencies Navy (Department of the Navy)	$836,986	<0.1%	Rank history: #72 in FY2022 and not on the FY2023–FY2025 lists; up 16 since FY2020.
83	Teledyne Technologies Incorporated 2 awardees, including Teledyne Defense Electronics, LLC Top agencies DLA (Defense Logistics Agency)	$818,951	<0.1%	Rank history: not on the FY2022 list, #43 in FY2023, #73 in FY2024 and #60 in FY2025; up 294 since FY2020.
84	Optical Sciences, LLC Top agencies Army (Department of the Army)	$805,000	<0.1%	Rank history: not on the FY2022 list, #70 in FY2023, not on the FY2024 list and #29 in FY2025; up 116 since FY2020.
85	Independent Hardware Inc. Top agencies DOJ (Department of Justice) USAF (Department of the Air Force) Army (Department of the Army)	$796,312	<0.1%	Rank history: not on the FY2022–FY2023 lists, #91 in FY2024 and #86 in FY2025; down 6 since FY2020.
86	Cobham Advanced Electronic Solutions Inc. 7 awardees, including Cobham Exeter, Inc., Frontgrade Technologies Inc. and Caes Systems LLC Top agencies Navy (Department of the Navy) DOT (Department of Transportation) DLA (Defense Logistics Agency)	$767,202	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 56 since FY2020.
87	Sengex LLC Top agencies USSOCOM (United States Special Operations Command)	$766,977	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
88	Valkyrie Enterprises, LLC 2 awardees Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$766,563	<0.1%	Rank history: #19 in FY2022, #29 in FY2023 and not on the FY2024–FY2025 lists; down 8 since FY2020.
89	Northrop Grumman Corporation 5 awardees, including Northrop Grumman Systems Corporation Top agencies Navy (Department of the Navy)	$762,824	<0.1%	Rank history: #84 in FY2022, #45 in FY2023, #28 in FY2024 and #20 in FY2025; down 6 since FY2020.
90	3M Company Through 3M Technical Ceramics Quapaw, LLC Top agencies Navy (Department of the Navy)	$740,000	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
91	Heritage Environmental Services Inc. Through Arcwood Environmental, LLC Top agencies DOJ (Department of Justice)	$715,111	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 41 since FY2020.
92	Airtronics, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$711,815	<0.1%	Rank history: not on the FY2022 list, #87 in FY2023, #90 in FY2024 and not on the FY2025 list; down 5 since FY2020.
93	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$710,323	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 47 since FY2020.
94	Mnemonics Inc. Top agencies Navy (Department of the Navy)	$704,619	<0.1%	Rank history: not on the FY2022 list, #92 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
95	Heico Aerospace Corporat 2 awardees, including Seal Dynamics LLC and Transformational Security, LLC Top agencies DLA (Defense Logistics Agency) DOE (Department of Energy) USAF (Department of the Air Force)	$701,315	<0.1%	Rank history: #75 in FY2022, not on the FY2023 list, #59 in FY2024 and #44 in FY2025; up 26 since FY2020.
96	Allied Associates International, Inc. Top agencies DOJ (Department of Justice)	$700,134	<0.1%	Rank history: #88 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
97	Juggernaut Defense LLC Top agencies DHS (Department of Homeland Security)	$697,071	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
98	Evergreen Fire Alarms LLC Top agencies Navy (Department of the Navy) Army (Department of the Army) NASA (National Aeronautics and Space Administration)	$663,937	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 77 since FY2020.
99	Optex Company Limited Through Fiber Sensys, Inc. Top agencies USAF (Department of the Air Force)	$635,633	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 364 since FY2020.
100	Laurel Technologies Partnership Top agencies Navy (Department of the Navy)	$634,688	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 68 since FY2020.

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100 of 904 contractors listed here. See the rest on GovTribe.

Rankings for the codes under NAICS 33429

Code	Net obligations	Largest contractor
334290 Other Communications Equipment Manufacturing	$2,085,719,376	L3Harris Technologies, 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 $2.14 billion 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 33429 contractors in FY2021?

1. L3Harris Technologies, Inc. ($572M), 2. RTX Corporation ($385M), 3. Viasat Inc. ($252M), 4. General Dynamics Corporation ($206M), 5. Euromids ($55.5M), 6. Serco North America (Holdings) Inc ($52.1M), 7. BAE Systems PLC ($45.4M), 8. JSI Telecom Inc. ($39.8M), 9. Rockwell Collins, Inc. ($35.7M), 10. Minuteman Security Solutions LLC ($27.6M).

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