Top 100 Contractors in PSC 58: Communication/Detection/Coherent Radiation, FY2021

Name: Top 100 Contractors in PSC 58: Communication/Detection/Coherent Radiation, FY2021
Creator: GovTribe

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

The top 10 won 75% of FY2021 PSC 58 contract dollars

Contract obligations: $14,026,044,443 Net of deobligations, by contracts coded PSC 58 or a code under it
Contractors: 2,165 Parent companies with an obligation
Largest contractor: RTX Corporation $2.48 billion, 17.2% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	RTX Corporation 47 awardees, including Raytheon Company, Data Link Solutions LLC and Rockwell Collins, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$2,480,242,654	17.2%	Rank history: #1 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; unchanged since FY2020.
2	L3Harris Technologies, Inc. 53 awardees, including L3Harris Global Communications, Inc., L3Harris Technologies Integrated Systems L.P. and L3 Technologies, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$2,246,036,324	15.6%	Rank history: #2 in FY2022, #2 in FY2023, #2 in FY2024 and #2 in FY2025; unchanged since FY2020.
3	Lockheed Martin Corporation 21 awardees, including Lockheed Martin Global, Inc. and Lockheed Martin Sippican, Inc. Top agencies Navy (Department of the Navy) MDA (DOD Missile Defense Agency) Army (Department of the Army)	$1,831,184,665	12.7%	Rank history: #3 in FY2022, #3 in FY2023, #3 in FY2024 and #4 in FY2025; unchanged since FY2020.
4	Northrop Grumman Corporation 29 awardees, including Northrop Grumman Systems Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$1,662,936,129	11.5%	Rank history: #4 in FY2022, #4 in FY2023, #4 in FY2024 and #3 in FY2025; unchanged since FY2020.
5	General Dynamics Corporation 18 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) DOT (Department of Transportation)	$752,377,715	5.2%	Rank history: #5 in FY2022, #5 in FY2023, #10 in FY2024 and #10 in FY2025; up 1 since FY2020.
6	The Boeing Company 20 awardees, including Boeing Comsatcom Services, Inc. and Digital Receiver Technology, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$465,905,077	3.2%	Rank history: #8 in FY2022, #7 in FY2023, #11 in FY2024 and #9 in FY2025; up 11 since FY2020.
7	Tcom, L.P. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$454,293,445	3.2%	Rank history: #6 in FY2022, #61 in FY2023, #58 in FY2024 and #69 in FY2025; up 32 since FY2020.
8	BAE Systems PLC 13 awardees, including BAE Systems Information and Electronic Systems Integration Inc., BAE Systems Technology Solutions & Services Inc. and BAE Systems Land & Armaments L.P. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$386,973,530	2.7%	Rank history: #7 in FY2022, #6 in FY2023, #5 in FY2024 and #5 in FY2025; unchanged since FY2020.
9	Erapsco Top agencies Navy (Department of the Navy)	$290,907,198	2.0%	Rank history: #9 in FY2022, #8 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2020.
10	Sierra Nevada Company, LLC Top agencies Army (Department of the Army) USSOCOM (United States Special Operations Command) USAF (Department of the Air Force)	$274,913,106	1.9%	Rank history: #15 in FY2022, #14 in FY2023, #12 in FY2024 and #7 in FY2025; up 2 since FY2020.
11	Thales 7 awardees, including Thales Defense & Security Inc., Thales Usa, Inc. and Thales Alenia Space Espana SA Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$232,924,656	1.6%	Rank history: #11 in FY2022, #9 in FY2023, #8 in FY2024 and #16 in FY2025; up 4 since FY2020.
12	Leonardo S.p.A. 19 awardees, including DRS Network & Imaging Systems, LLC, Laurel Technologies Partnership and DRS Systems, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$207,602,406	1.4%	Rank history: #10 in FY2022, #10 in FY2023, #7 in FY2024 and #8 in FY2025; down 3 since FY2020.
13	Viasat Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$205,028,815	1.4%	Rank history: #12 in FY2022, #11 in FY2023, #31 in FY2024 and #21 in FY2025; down 6 since FY2020.
14	Government of Canada Through Canadian Commercial Corporation Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$192,142,385	1.3%	Rank history: #14 in FY2022, #20 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2020.
15	Leidos Holdings, Inc. 11 awardees, including Leidos, Inc., Leidos Security Detection & Automation, Inc. and Dynetics, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) DHS (Department of Homeland Security)	$160,913,008	1.1%	Rank history: #13 in FY2022, #13 in FY2023, #6 in FY2024 and #11 in FY2025; down 1 since FY2020.
16	Ultra Electronics Forensic Technology Inc 9 awardees, including Ultra Electronics Ocean Systems Inc., Ultra Electronics TCS Inc. and Undersea Sensor Systems Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$128,032,933	0.9%	Rank history: #18 in FY2022, #15 in FY2023, #21 in FY2024 and not on the FY2025 list; up 6 since FY2020.
17	Comtech Telecommunications Corp. 3 awardees, including Telecommunication Systems Inc., Comtech Satellite Network Technologies, Inc. and Stellant Pst Corp. Top agencies Army (Department of the Army) NASA (National Aeronautics and Space Administration) Navy (Department of the Navy)	$63,014,890	0.4%	Rank history: #19 in FY2022, #16 in FY2023, #17 in FY2024 and #43 in FY2025; up 25 since FY2020.
18	Rockwell Collins, Inc. 3 awardees Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$56,484,926	0.4%	Rank history: not on the FY2022–FY2025 lists; up 25 since FY2020.
19	Ma Federal, Inc. 2 awardees, including Igov Technologies, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) USSOCOM (United States Special Operations Command)	$55,862,136	0.4%	Rank history: #92 in FY2022 and not on the FY2023–FY2025 lists; up 33 since FY2020.
20	SRC Inc. 2 awardees, including Srctec, LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) USAF (Department of the Air Force)	$55,119,727	0.4%	Rank history: #23 in FY2022, #12 in FY2023 and not on the FY2024–FY2025 lists; up 114 since FY2020.
21	Saab AB 2 awardees, including Saab, Inc. Top agencies Navy (Department of the Navy)	$48,828,700	0.3%	Rank history: #20 in FY2022, #82 in FY2023, not on the FY2024 list and #48 in FY2025; up 9 since FY2020.
22	Motorola Inc 2 awardees, including Motorola Solutions, Inc. Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice) Army (Department of the Army)	$44,244,703	0.3%	Rank history: #24 in FY2022, #35 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2020.
23	BAE Systems Land & Armaments L.P. 12 awardees, including BAE Systems Technology Solutions & Services Inc. and BAE Systems Information and Electronic Systems Integration Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$40,511,243	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
24	New TECH Solutions, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DOS (Department of State)	$39,119,770	0.3%	Rank history: #72 in FY2022, #72 in FY2023, #71 in FY2024 and #50 in FY2025; up 22 since FY2020.
25	Diversified Technologies, Inc. Top agencies USAF (Department of the Air Force)	$37,916,400	0.3%	Rank history: not on the FY2022–FY2023 lists, #52 in FY2024 and not on the FY2025 list; up 53 since FY2020.
26	Advanced Technology Systems Company, Inc. (OF Virginia) Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$36,804,542	0.3%	Rank history: #16 in FY2022, #38 in FY2023, #28 in FY2024 and not on the FY2025 list; up 42 since FY2020.
27	Smiths Group PLC 2 awardees, including Smiths Detection Inc. and Trak Tecom Corporation Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice) Army (Department of the Army)	$35,567,179	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
28	Euromids Top agencies Navy (Department of the Navy)	$33,745,441	0.2%	Rank history: #39 in FY2022, #78 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2020.
29	Fcn, Inc. Top agencies Treasury (Department of the Treasury) USDA (Department of Agriculture) DMA (Defense Media Activity)	$30,815,603	0.2%	Rank history: #27 in FY2022, #27 in FY2023, #79 in FY2024 and #73 in FY2025; up 11 since FY2020.
30	Tribalco LLC Top agencies DOJ (Department of Justice) DHS (Department of Homeland Security) Navy (Department of the Navy)	$30,226,352	0.2%	Rank history: #28 in FY2022 and not on the FY2023–FY2025 lists; down 12 since FY2020.
31	Koam Engineering Systems, Inc. Top agencies Navy (Department of the Navy)	$30,029,545	0.2%	Rank history: not on the FY2022–FY2025 lists; up 19 since FY2020.
32	Science Applications International Corporation 6 awardees, including Asrc Federal Facilities Logistics, LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) MDA (DOD Missile Defense Agency)	$28,974,018	0.2%	Rank history: not on the FY2022–FY2025 lists; up 1 since FY2020.
33	Telos Corporation Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$26,213,508	0.2%	Rank history: #66 in FY2022 and not on the FY2023–FY2025 lists; up 39 since FY2020.
34	Sechan Electronics Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$24,206,554	0.2%	Rank history: #71 in FY2022, #37 in FY2023, #47 in FY2024 and #59 in FY2025; up 56 since FY2020.
35	Chemring Group PLC 3 awardees, including Chemring Australia PTY Ltd and Alloy Surfaces Co Inc. Top agencies Navy (Department of the Navy)	$22,231,891	0.2%	Rank history: #44 in FY2022, #29 in FY2023, #40 in FY2024 and not on the FY2025 list; up 249 since FY2020.
36	CACI International Inc. 9 awardees, including Mastodon Design LLC, Caci-Iss, LLC and LGS Innovations LLC Top agencies USAF (Department of the Air Force) DHS (Department of Homeland Security) Army (Department of the Army)	$21,549,495	0.1%	Rank history: #68 in FY2022, #65 in FY2023, #22 in FY2024 and #14 in FY2025; down 7 since FY2020.
37	Mercury Computer Systems Inc. 6 awardees, including Mercury Defense Systems, Inc., Mercury Mission Systems LLC and Physical Optics Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$21,245,315	0.1%	Rank history: #32 in FY2022, #39 in FY2023, #33 in FY2024 and not on the FY2025 list; up 37 since FY2020.
38	Data Link Solutions LLC Top agencies Navy (Department of the Navy)	$18,431,904	0.1%	Rank history: not on the FY2022–FY2025 lists; up 394 since FY2020.
39	Raytheon Company 2 awardees Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DCMA (Defense Contract Management Agency)	$18,341,698	0.1%	Rank history: not on the FY2022–FY2023 lists, #27 in FY2024 and not on the FY2025 list; down 3 since FY2020.
40	Saab, Inc. Top agencies Navy (Department of the Navy)	$17,789,572	0.1%	Rank history: not on the FY2022–FY2025 lists; up 199 since FY2020.
41	Honeywell International Inc. 13 awardees, including Vocollect, Inc., Grimes Aerospace Company and Vindicator Technologies, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$17,638,697	0.1%	Rank history: not on the FY2022–FY2025 lists; up 26 since FY2020.
42	Elbit Systems Ltd 5 awardees, including Elbitamerica, Inc., Elbit Systems of America - Night Vision LLC and Sparton Aydin, LLC Top agencies Army (Department of the Army) DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$17,378,561	0.1%	Rank history: #49 in FY2022, #49 in FY2023, #9 in FY2024 and not on the FY2025 list; down 19 since FY2020.
43	Kranze Technology Solutions Inc. Top agencies Navy (Department of the Navy)	$16,850,581	0.1%	Rank history: #89 in FY2022, #55 in FY2023 and not on the FY2024–FY2025 lists; up 26 since FY2020.
44	Cynergy Professional Systems LLC Top agencies VA (Department of Veterans Affairs) DOS (Department of State) DOJ (Department of Justice)	$16,849,520	0.1%	Rank history: #33 in FY2022, #32 in FY2023, #35 in FY2024 and #45 in FY2025; up 13 since FY2020.
45	General Dynamics Mission Systems, Inc. 2 awardees Top agencies DOT (Department of Transportation) Navy (Department of the Navy) USAF (Department of the Air Force)	$16,026,310	0.1%	Rank history: #37 in FY2022, not on the FY2023 list, #42 in FY2024 and not on the FY2025 list; up 203 since FY2020.
46	Axon Enterprise, Inc. 2 awardees Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice) USDA (Department of Agriculture)	$15,974,623	0.1%	Rank history: #41 in FY2022, #23 in FY2023, #25 in FY2024 and #34 in FY2025; up 46 since FY2020.
47	L3 Technologies, Inc. Top agencies Navy (Department of the Navy)	$15,399,324	0.1%	Rank history: not on the FY2022–FY2024 lists and #17 in FY2025; up 109 since FY2020.
48	Star Dynamics Corp Top agencies USAF (Department of the Air Force)	$15,328,232	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
49	Ultra Electronics Ocean Systems Inc. Top agencies Navy (Department of the Navy)	$15,179,733	0.1%	Rank history: not on the FY2022–FY2025 lists; up 395 since FY2020.
50	Ball Corp Through BAE Systems Space & Mission Systems Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$14,725,355	0.1%	Rank history: not on the FY2022 list, #48 in FY2023 and not on the FY2024–FY2025 lists; up 43 since FY2020.
51	Transdigm Group Incorporated 7 awardees, including Armtec Countermeasures Co, Palomar Products, Inc. and Aerosonic LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$14,446,932	0.1%	Rank history: #43 in FY2022, #45 in FY2023 and not on the FY2024–FY2025 lists; up 26 since FY2020.
52	Kongsberg Gruppen ASA 3 awardees, including Kongsberg Discovery US, LLC, Kongsberg Defence & Aerospace AS and Kongsberg Maritime Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) DHS (Department of Homeland Security)	$14,289,986	0.1%	Rank history: #91 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
53	Edge Technology Distributors, Inc. Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force) Navy (Department of the Navy)	$14,040,266	0.1%	Rank history: #36 in FY2022 and not on the FY2023–FY2025 lists; up 18 since FY2020.
54	Switching Power Inc. Top agencies USAF (Department of the Air Force)	$13,931,675	0.1%	Rank history: #58 in FY2022, #81 in FY2023 and not on the FY2024–FY2025 lists; up 98 since FY2020.
55	Griffon Corporation 2 awardees, including Telephonics Corp Top agencies Navy (Department of the Navy) Army (Department of the Army) DHS (Department of Homeland Security)	$13,790,412	0.1%	Rank history: #56 in FY2022, #21 in FY2023 and not on the FY2024–FY2025 lists; down 4 since FY2020.
56	Continental Electronics Corporation Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$13,472,320	0.1%	Rank history: #86 in FY2022, #17 in FY2023, #53 in FY2024 and not on the FY2025 list; up 148 since FY2020.
57	Relm Communications Inc. 2 awardees, including BK Technologies Inc. Top agencies DOI (Department of the Interior) USDA (Department of Agriculture) Army (Department of the Army)	$12,928,035	0.1%	Rank history: #31 in FY2022, #54 in FY2023 and not on the FY2024–FY2025 lists; up 38 since FY2020.
58	Moog Inc. 3 awardees, including Quickset Defense Technologies LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$12,843,473	0.1%	Rank history: #63 in FY2022 and not on the FY2023–FY2025 lists; up 36 since FY2020.
59	Network Innovations Inc. 2 awardees, including Nic4 Inc. Top agencies Army (Department of the Army) DOI (Department of the Interior)	$11,443,755	0.1%	Rank history: #35 in FY2022 and not on the FY2023–FY2025 lists; up 22 since FY2020.
60	AEG Group Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DOI (Department of the Interior)	$11,292,156	0.1%	Rank history: #40 in FY2022, #46 in FY2023, #57 in FY2024 and #71 in FY2025; up 54 since FY2020.
61	ACG Systems, Inc. Top agencies DHS (Department of Homeland Security) USDA (Department of Agriculture) DOI (Department of the Interior)	$10,773,156	0.1%	Rank history: #73 in FY2022, #52 in FY2023, #45 in FY2024 and #42 in FY2025; up 38 since FY2020.
62	Koniag, Inc. Through Eagle Harbor Solutions LLC Top agencies USAID (US Agency for International Development)	$10,567,046	0.1%	Rank history: #61 in FY2022 and not on the FY2023–FY2025 lists; up 137 since FY2020.
63	General Atomic Technologies Corporation Through General Atomics Aeronautical Systems, Inc. Top agencies USAF (Department of the Air Force)	$10,431,140	0.1%	Rank history: #54 in FY2022 and not on the FY2023–FY2025 lists; down 35 since FY2020.
64	Sigma Defense Systems LLC Top agencies DFAS (Defense Finance and Accounting Service) DISA (Defense Information Systems Agency) USAF (Department of the Air Force)	$10,428,346	0.1%	Rank history: #79 in FY2022, #69 in FY2023, #26 in FY2024 and #53 in FY2025; down 37 since FY2020.
65	Cykor LLC Top agencies Navy (Department of the Navy)	$10,155,166	0.1%	Rank history: not on the FY2022–FY2025 lists; up 117 since FY2020.
66	Seakr Engineering, LLC Top agencies USAF (Department of the Air Force)	$9,862,465	0.1%	Rank history: not on the FY2022–FY2025 lists; down 17 since FY2020.
67	North Star Scientific Corp Top agencies Navy (Department of the Navy)	$9,557,740	0.1%	Rank history: not on the FY2022–FY2025 lists; down 12 since FY2020.
68	L3Harris Nexgen Communications LLC Top agencies USSOCOM (United States Special Operations Command) Navy (Department of the Navy)	$9,403,652	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
69	Vaisala OYJ Through Vaisala Inc. Top agencies DOT (Department of Transportation)	$9,240,572	0.1%	Rank history: #38 in FY2022, #60 in FY2023 and not on the FY2024–FY2025 lists; up 119 since FY2020.
70	Point Rock Solutions, LLC Top agencies Navy (Department of the Navy)	$9,166,605	0.1%	Rank history: not on the FY2022–FY2025 lists; up 89 since FY2020.
71	Sedna Digital Solutions, LLC Top agencies Navy (Department of the Navy)	$8,526,447	0.1%	Rank history: #82 in FY2022, #31 in FY2023, #30 in FY2024 and #26 in FY2025; up 49 since FY2020.
72	Corp Ten International 2 awardees, including DTC Communications, Inc. Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice) Treasury (Department of the Treasury)	$8,507,147	0.1%	Rank history: #51 in FY2022 and not on the FY2023–FY2025 lists; up 73 since FY2020.
73	Theodor Wille Intertrade GMBH Through Atlantic Diving Supply, Inc. Top agencies DOS (Department of State) Navy (Department of the Navy) DHS (Department of Homeland Security)	$8,432,581	0.1%	Rank history: #96 in FY2022 and not on the FY2023–FY2025 lists; up 39 since FY2020.
74	Lockheed Martin Sippican, Inc. Top agencies Navy (Department of the Navy)	$8,370,070	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
75	Antenna Research Associates, Incorporated Through Aqyr Technologies Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$7,989,061	0.1%	Rank history: not on the FY2022 list, #77 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
76	Caci Photonics, LLC Top agencies USAF (Department of the Air Force)	$7,709,198	0.1%	Rank history: not on the FY2022–FY2025 lists; up 29 since FY2020.
77	Nice Systems Ltd. Top agencies DOT (Department of Transportation)	$7,525,959	0.1%	Rank history: #52 in FY2022 and not on the FY2023–FY2025 lists; up 395 since FY2020.
78	At&T Inc. 17 awardees, including Att Mobility LLC, At&T Technical Services Company, Inc. and At&T Mobility National Accounts LLC Top agencies SSA (Social Security Administration) DOS (Department of State) Navy (Department of the Navy)	$7,478,366	0.1%	Rank history: #46 in FY2022, #40 in FY2023 and not on the FY2024–FY2025 lists; down 54 since FY2020.
79	Northrop Grumman Systems Corporation Top agencies Navy (Department of the Navy)	$7,464,292	0.1%	Rank history: not on the FY2022–FY2025 lists; up 72 since FY2020.
80	Cobham Advanced Electron 4 awardees, including Cobham Exeter, Inc., Caes Systems LLC and Chelton Avionics, Inc. Top agencies Navy (Department of the Navy) DOT (Department of Transportation)	$7,420,193	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
81	Teledyne Technologies Incorporated 15 awardees, including Teledyne Flir Defense, Inc., Teledyne Flir Maritime US, Inc. and Teledyne Instruments, Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$7,318,908	0.1%	Rank history: #50 in FY2022, #74 in FY2023, #88 in FY2024 and #24 in FY2025; up 60 since FY2020.
82	Micro USA Inc. Top agencies Navy (Department of the Navy)	$7,118,420	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 31 since FY2020.
83	Serco North America (Holdings) Inc 2 awardees, including Serco Inc. and Whitney Bradley & Brown, Inc. Top agencies Navy (Department of the Navy) DOJ (Department of Justice)	$7,079,828	<0.1%	Rank history: not on the FY2022 list, #67 in FY2023 and not on the FY2024–FY2025 lists; down 25 since FY2020.
84	Advanced Computer Concepts, Inc. Top agencies DOJ (Department of Justice) Navy (Department of the Navy) USAF (Department of the Air Force)	$7,069,349	<0.1%	Rank history: #95 in FY2022, #90 in FY2023, #67 in FY2024 and #84 in FY2025; down 52 since FY2020.
85	Government Marketing and Procurement, LLC Top agencies VA (Department of Veterans Affairs) DHA (Defense Health Agency) Army (Department of the Army)	$7,003,612	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 3 since FY2020.
86	Sterling Computers Corporation Top agencies Navy (Department of the Navy) DTRA (Defense Threat Reduction Agency) USAF (Department of the Air Force)	$6,929,829	<0.1%	Rank history: not on the FY2022 list, #99 in FY2023, #96 in FY2024 and not on the FY2025 list; down 39 since FY2020.
87	Glasshouse Systems Inc. Top agencies USAF (Department of the Air Force)	$6,916,373	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
88	Massa Products Corporation Top agencies Navy (Department of the Navy)	$6,900,779	<0.1%	Rank history: #83 in FY2022, #58 in FY2023, #59 in FY2024 and #75 in FY2025; up 28 since FY2020.
89	Flir Systems Inc. 6 awardees, including Teledyne Flir Defense, Inc., Teledyne Flir, LLC and Teledyne Flir Commercial Systems Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) DHS (Department of Homeland Security)	$6,725,446	<0.1%	Rank history: #48 in FY2022, #28 in FY2023, #50 in FY2024 and not on the FY2025 list; down 63 since FY2020.
90	Simplecom Solutions LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$6,714,326	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 53 since FY2020.
91	Target Systemelektronik GMBH & Co. KG Top agencies DHS (Department of Homeland Security)	$6,457,431	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
92	Analytic Services Inc. Through Advanced Technology International Top agencies WHS (DOD Washington Headquarters Service)	$6,327,301	<0.1%	Rank history: #30 in FY2022, #85 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
93	Intific Inc 4 awardees, including Cubic Defense Applications, Inc., Cubic Secure Communications, LLC and Gatr Technologies, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$6,282,094	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 7 since FY2020.
94	Jacobs Engineering Group Inc. 2 awardees, including The Keyw Corporation and Amentum Technology, Inc. Top agencies USAF (Department of the Air Force) USSOCOM (United States Special Operations Command) Army (Department of the Army)	$6,231,684	<0.1%	Rank history: #76 in FY2022, #91 in FY2023 and not on the FY2024–FY2025 lists; up 193 since FY2020.
95	Persistent Systems LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$6,113,543	<0.1%	Rank history: #74 in FY2022, not on the FY2023 list, #73 in FY2024 and not on the FY2025 list; up 43 since FY2020.
96	Prism Maritime, Inc. Top agencies Navy (Department of the Navy)	$6,084,311	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 244 since FY2020.
97	Fairbanks Morse LLC Through Mast Technologies, LLC Top agencies Navy (Department of the Navy)	$5,933,384	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
98	Huntington Ingalls Industries, Inc. 2 awardees, including Huntington Ingalls Inc. Top agencies Navy (Department of the Navy)	$5,778,100	<0.1%	Rank history: #26 in FY2022, #57 in FY2023, #39 in FY2024 and #20 in FY2025; new, not ranked in FY2020.
99	Alphasix, Llc. Top agencies Treasury (Department of the Treasury) DOJ (Department of Justice)	$5,682,318	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 252 since FY2020.
100	Weibel Equipment, Inc. Top agencies WHS (DOD Washington Headquarters Service)	$5,631,902	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 283 since FY2020.

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100 of 2,165 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC 58

Code	Net obligations	Largest contractor
5865 Electronic Countermeasures, Counter-Countermeasures and Quick Reaction Capability Equipment	$2,980,649,826	Northrop Grumman Corporation
5810 Communications Security Equipment and Components	$2,584,029,247	L3Harris Technologies, Inc.
5840 Radar Equipment, Except Airborne	$2,546,970,946	Lockheed Martin Corporation
5841 Radar Equipment, Airborne	$1,881,071,957	RTX Corporation
5821 Radio and Television Communication Equipment, Airborne	$667,929,091	RTX Corporation
5895 Miscellaneous Communication Equipment	$608,072,127	Northrop Grumman Corporation
5825 Radio Navigation Equipment, Except Airborne	$577,002,641	L3Harris Technologies, Inc.
5845 Underwater Sound Equipment	$569,862,351	Erapsco
5826 Radio Navigation Equipment, Airborne	$465,366,233	RTX Corporation
5820 Radio and Television Communication Equipment, Except Airborne	$441,202,835	L3Harris Technologies, Inc.
5855 Night Vision Equipment, Emitted and Reflected Radiation	$419,285,670	Leonardo S.p.A.
5836 Video Recording and Reproducing Equipment	$100,622,823	Axon Enterprise, Inc.
5860 Stimulated Coherent Radiation Devices, Components, and Accessories	$73,013,656	Smiths Group PLC
5830 Intercommunication and Public Address Systems, Except Airborne	$30,962,083	Network Innovations Inc.
5805 Telephone and Telegraph Equipment	$22,497,660	At&T Inc.
5835 Sound Recording and Reproducing Equipment	$15,509,247	Nice Systems Ltd.
5831 Intercommunication and Public Address Systems, Airborne	$14,234,620	Griffon Corporation
5815 Teletype and Facsimile Equipment	$2,396,259	Rugged Information Technology Equipment Corporation

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 $14.4 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 PSC 58 contractors in FY2021?

1. RTX Corporation ($2.48B), 2. L3Harris Technologies, Inc. ($2.25B), 3. Lockheed Martin Corporation ($1.83B), 4. Northrop Grumman Corporation ($1.66B), 5. General Dynamics Corporation ($752M), 6. The Boeing Company ($466M), 7. Tcom, L.P. ($454M), 8. BAE Systems PLC ($387M), 9. Erapsco ($291M), 10. Sierra Nevada Company, LLC ($275M).

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