Top 100 Contractors in PSC 5840: Radar Equipment, Except Airborne, FY2021

Name: Top 100 Contractors in PSC 5840: Radar Equipment, Except Airborne, FY2021
Creator: GovTribe

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

The top 10 won 87% of FY2021 PSC 5840 contract dollars

Contract obligations: $2,546,970,946 Net of deobligations, by contracts coded PSC 5840
Contractors: 175 Parent companies with an obligation
Largest contractor: Lockheed Martin Corporation $1.21 billion, 46.3% 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	Lockheed Martin Corporation 6 awardees, including Lockheed Martin Global, Inc. Top agencies Navy (Department of the Navy) MDA (DOD Missile Defense Agency) Army (Department of the Army)	$1,214,537,393	46.3%	Rank history: #2 in FY2022, #1 in FY2023, #1 in FY2024 and #3 in FY2025; up 1 since FY2020.
2	RTX Corporation 12 awardees, including Raytheon Company Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) Army (Department of the Army)	$468,173,795	17.8%	Rank history: #1 in FY2022, #2 in FY2023, #2 in FY2024 and #1 in FY2025; down 1 since FY2020.
3	Northrop Grumman Corporation 7 awardees, including Northrop Grumman Systems Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$266,322,818	10.1%	Rank history: #3 in FY2022, #3 in FY2023, #3 in FY2024 and #2 in FY2025; up 1 since FY2020.
4	General Dynamics Corporation 3 awardees, including Electric Boat Corporation and General Dynamics-Ots, Inc. Top agencies Navy (Department of the Navy)	$69,752,548	2.7%	Rank history: #7 in FY2022, #7 in FY2023, #7 in FY2024 and #11 in FY2025; up 4 since FY2020.
5	BAE Systems PLC 3 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) OSD (Office of the Secretary of Defense)	$53,080,477	2.0%	Rank history: #4 in FY2022, #5 in FY2023, #4 in FY2024 and #4 in FY2025; up 16 since FY2020.
6	Saab AB 2 awardees, including Saab, Inc. Top agencies Navy (Department of the Navy)	$48,839,241	1.9%	Rank history: #6 in FY2022, #20 in FY2023, #27 in FY2024 and #14 in FY2025; up 4 since FY2020.
7	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)	$47,015,337	1.8%	Rank history: #11 in FY2022, #4 in FY2023, #47 in FY2024 and #70 in FY2025; up 18 since FY2020.
8	Ultra Electronics Forensic Technology Inc Through Ultra Electronics Ocean Systems Inc. Top agencies Navy (Department of the Navy)	$45,462,322	1.7%	Rank history: #12 in FY2022, #9 in FY2023, #41 in FY2024 and not on the FY2025 list; up 6 since FY2020.
9	Diversified Technologies, Inc. Top agencies USAF (Department of the Air Force)	$37,916,400	1.4%	Rank history: #24 in FY2022, not on the FY2023 list, #13 in FY2024 and #53 in FY2025; up 9 since FY2020.
10	Advanced Technology Systems Company, Inc. (OF Virginia) Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$33,820,937	1.3%	Rank history: #9 in FY2022, #14 in FY2023, #28 in FY2024 and #71 in FY2025; up 44 since FY2020.
11	Leonardo S.p.A. 3 awardees, including Laurel Technologies Partnership, Leonardo US Cyber and Security Solutions, LLC and DRS Training & Control Systems, LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$30,188,207	1.2%	Rank history: #8 in FY2022, #13 in FY2023, #6 in FY2024 and #9 in FY2025; up 2 since FY2020.
12	BAE Systems Land & Armaments L.P. 3 awardees, including BAE Systems Technology Solutions & Services Inc. Top agencies USAF (Department of the Air Force)	$26,350,797	1.0%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
13	Leidos Holdings, Inc. 2 awardees, including Leidos, Inc. Top agencies DOT (Department of Transportation) Navy (Department of the Navy)	$22,738,815	0.9%	Rank history: #10 in FY2022, #10 in FY2023, #24 in FY2024 and #18 in FY2025; down 4 since FY2020.
14	L3Harris Technologies, Inc. 4 awardees, including Fisica Applied Technologies, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$19,248,214	0.7%	Rank history: #14 in FY2022, #11 in FY2023, #16 in FY2024 and #43 in FY2025; up 5 since FY2020.
15	Saab, Inc. Top agencies Navy (Department of the Navy)	$17,789,572	0.7%	Rank history: not on the FY2022–FY2025 lists; up 20 since FY2020.
16	Thales 2 awardees, including Thales Usa, Inc. Top agencies USAF (Department of the Air Force)	$14,024,804	0.5%	Rank history: #17 in FY2022, #12 in FY2023, #50 in FY2024 and not on the FY2025 list; up 8 since FY2020.
17	Switching Power Inc. Top agencies USAF (Department of the Air Force)	$13,931,675	0.5%	Rank history: #15 in FY2022, #17 in FY2023 and not on the FY2024–FY2025 lists; up 10 since FY2020.
18	Continental Electronics Corporation Top agencies USAF (Department of the Air Force)	$13,325,739	0.5%	Rank history: #18 in FY2022, #6 in FY2023, #12 in FY2024 and #7 in FY2025; up 12 since FY2020.
19	Moog Inc. Top agencies Navy (Department of the Navy)	$12,532,261	0.5%	Rank history: #16 in FY2022, #38 in FY2023, #37 in FY2024 and not on the FY2025 list; up 7 since FY2020.
20	Raytheon Company Top agencies Navy (Department of the Navy) DCMA (Defense Contract Management Agency)	$11,196,895	0.4%	Rank history: not on the FY2022–FY2025 lists; down 9 since FY2020.
21	Ultra Electronics Ocean Systems Inc. Top agencies Navy (Department of the Navy)	$10,548,032	0.4%	Rank history: not on the FY2022–FY2025 lists; up 99 since FY2020.
22	North Star Scientific Corp Top agencies Navy (Department of the Navy)	$9,557,740	0.4%	Rank history: #33 in FY2022 and not on the FY2023–FY2025 lists; unchanged since FY2020.
23	Prism Maritime, Inc. Top agencies Navy (Department of the Navy)	$6,084,311	0.2%	Rank history: #21 in FY2022, #26 in FY2023, #43 in FY2024 and #41 in FY2025; up 22 since FY2020.
24	Fairbanks Morse LLC Through Mast Technologies, LLC Top agencies Navy (Department of the Navy)	$5,933,384	0.2%	Rank history: #41 in FY2022, #28 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
25	Weibel Equipment, Inc. Top agencies WHS (DOD Washington Headquarters Service)	$5,631,902	0.2%	Rank history: #43 in FY2022, #59 in FY2023 and not on the FY2024–FY2025 lists; up 23 since FY2020.
26	Government of Canada Through Canadian Commercial Corporation Top agencies Navy (Department of the Navy)	$3,965,109	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
27	Ciao Wireless, Inc. Top agencies DOT (Department of Transportation)	$2,985,817	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
28	Thomas B. Thriges Fond Through Terma Inc. Top agencies DHS (Department of Homeland Security)	$2,691,003	0.1%	Rank history: #29 in FY2022, #25 in FY2023, #33 in FY2024 and not on the FY2025 list; up 77 since FY2020.
29	G.c. Micro Corporation Top agencies Navy (Department of the Navy)	$2,386,742	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
30	Hexcel Corp Through Arc Technologies LLC Top agencies Navy (Department of the Navy)	$2,236,167	0.1%	Rank history: #28 in FY2022, #65 in FY2023, #36 in FY2024 and not on the FY2025 list; up 36 since FY2020.
31	Science Applications International Corporation 3 awardees Top agencies Navy (Department of the Navy) MDA (DOD Missile Defense Agency)	$2,214,326	0.1%	Rank history: #55 in FY2022, #93 in FY2023, #32 in FY2024 and not on the FY2025 list; unchanged since FY2020.
32	BAE Systems Technology Solutions & Services Inc. Top agencies USAF (Department of the Air Force)	$2,092,668	0.1%	Rank history: #13 in FY2022, #32 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
33	Radome Services LLC Top agencies Commerce (Department of Commerce)	$1,387,011	0.1%	Rank history: #23 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
34	Danko Arlington, Inc. Top agencies Navy (Department of the Navy)	$1,285,276	<0.1%	Rank history: #91 in FY2022, #49 in FY2023, #99 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
35	Hensoldt Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$1,223,982	<0.1%	Rank history: #44 in FY2022, #35 in FY2023, not on the FY2024 list and #15 in FY2025; up 1 since FY2020.
36	Dupont Building, Inc. Top agencies DOT (Department of Transportation)	$1,209,008	<0.1%	Rank history: #35 in FY2022, #24 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2020.
37	Echodyne Corp Top agencies DHS (Department of Homeland Security)	$1,050,000	<0.1%	Rank history: #22 in FY2022, not on the FY2023–FY2024 lists and #10 in FY2025; new, not ranked in FY2020.
38	Southwest Research Institute Top agencies USAF (Department of the Air Force)	$939,328	<0.1%	Rank history: #46 in FY2022, not on the FY2023 list, #42 in FY2024 and #37 in FY2025; new, not ranked in FY2020.
39	Geodesicx, Inc. Top agencies DHS (Department of Homeland Security)	$896,069	<0.1%	Rank history: #65 in FY2022 and not on the FY2023–FY2025 lists; up 108 since FY2020.
40	Koi Computers, Inc. Top agencies Navy (Department of the Navy)	$840,570	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
41	Telos Corporation Top agencies Army (Department of the Army)	$757,997	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
42	Detect Inc. Top agencies USAF (Department of the Air Force)	$717,699	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
43	Addon UBT JV, LLC Top agencies DOT (Department of Transportation)	$698,499	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
44	General Tool Company Top agencies Navy (Department of the Navy)	$643,237	<0.1%	Rank history: not on the FY2022 list, #74 in FY2023, #82 in FY2024 and #62 in FY2025; new, not ranked in FY2020.
45	C4 Planning Solutions, LLC Top agencies Navy (Department of the Navy)	$590,211	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
46	Briartek Inc. Top agencies Navy (Department of the Navy)	$570,718	<0.1%	Rank history: not on the FY2022–FY2023 lists, #95 in FY2024 and #80 in FY2025; up 24 since FY2020.
47	ST Engineering Halter Marine and Offshore Inc. Through Glowlink Communications Technology, Inc. Top agencies USAF (Department of the Air Force)	$531,397	<0.1%	Rank history: #52 in FY2022, #47 in FY2023 and not on the FY2024–FY2025 lists; up 11 since FY2020.
48	Northrop Grumman Systems Corporation 2 awardees Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$530,751	<0.1%	Rank history: #53 in FY2022, not on the FY2023 list, #5 in FY2024 and not on the FY2025 list; up 4 since FY2020.
49	Telesat Canada Top agencies USAF (Department of the Air Force)	$530,425	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
50	General Dynamics Satcom Technologies Inc. Through CPI Electron Device Business, Inc. Top agencies Navy (Department of the Navy) DOT (Department of Transportation)	$522,650	<0.1%	Rank history: #51 in FY2022, #30 in FY2023, #77 in FY2024 and not on the FY2025 list; up 30 since FY2020.
51	New TECH Solutions, Inc. Top agencies DHS (Department of Homeland Security)	$480,208	<0.1%	Rank history: not on the FY2022 list, #50 in FY2023, #59 in FY2024 and #46 in FY2025; up 120 since FY2020.
52	Cobham Advanced Electronic Solutions Inc. 2 awardees, including Frontgrade Technologies Inc. Top agencies Navy (Department of the Navy)	$467,809	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 19 since FY2020.
53	Leidos, Inc. Top agencies Navy (Department of the Navy)	$382,618	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 36 since FY2020.
54	Supplied Industrial Solutions, Inc. Top agencies Army (Department of the Army)	$372,450	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
55	Teledyne Technologies Incorporated Through Teledyne Flir Commercial Systems Inc. Top agencies USAF (Department of the Air Force)	$367,288	<0.1%	Rank history: not on the FY2022–FY2024 lists and #8 in FY2025; up 58 since FY2020.
56	Components Corporation of America Through Staco Systems, Inc. Top agencies Navy (Department of the Navy)	$335,680	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
57	Griffon Corporation 2 awardees, including Telephonics Corporation Top agencies DOT (Department of Transportation)	$320,933	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 17 since FY2020.
58	ATS Services Limited Top agencies NASA (National Aeronautics and Space Administration)	$319,680	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
59	Lowell Digisonde International, LLC Top agencies Army (Department of the Army)	$285,869	<0.1%	Rank history: not on the FY2022 list, #51 in FY2023 and not on the FY2024–FY2025 lists; up 5 since FY2020.
60	RA Wood Associates LLC Top agencies Navy (Department of the Navy)	$241,357	<0.1%	Rank history: #58 in FY2022, #33 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
61	Laird Technologies Inc. Through Laird R & F Products, Inc. Top agencies Navy (Department of the Navy)	$239,757	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 8 since FY2020.
62	Droneshield LLC Top agencies USAF (Department of the Air Force)	$236,000	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 7 since FY2020.
63	Rada Technologies LLC Top agencies DHS (Department of Homeland Security)	$229,530	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 7 since FY2020.
64	Kisters AG Through Kisters North America, Inc. Top agencies DOI (Department of the Interior)	$217,566	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
65	Brighton Cromwell LLC Top agencies DLA (Defense Logistics Agency)	$179,608	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 77 since FY2020.
66	Orolia USA Inc. Through Safran Trusted 4D Inc. Top agencies USAF (Department of the Air Force)	$176,330	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
67	Mac Aerospace Corp Top agencies Navy (Department of the Navy)	$175,900	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
68	Vi-Star Gear Co Inc. Top agencies Navy (Department of the Navy)	$155,260	<0.1%	Rank history: #48 in FY2022, not on the FY2023–FY2024 lists and #81 in FY2025; up 57 since FY2020.
69	SSR Engineering, Incorporated Top agencies DHS (Department of Homeland Security)	$154,100	<0.1%	Rank history: not on the FY2022 list, #44 in FY2023, #54 in FY2024 and #51 in FY2025; down 7 since FY2020.
70	Weather Detection Systems Top agencies USAF (Department of the Air Force)	$150,000	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
71	Linear Motion LLC Top agencies DLA (Defense Logistics Agency)	$142,480	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
72	Inventive Engineering Inc. Top agencies DOT (Department of Transportation)	$130,879	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 34 since FY2020.
73	Amentum Services, Inc. Top agencies Navy (Department of the Navy)	$127,139	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 31 since FY2020.
74	Alexander/Ryan Marine & Safety Co. Through NAL Research Corp Top agencies Army (Department of the Army)	$124,049	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
75	Danaher Corporation Through OTT Hydromet Corp Top agencies DOI (Department of the Interior)	$122,134	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
76	Diamond-Roltran LLC Top agencies Navy (Department of the Navy)	$107,076	<0.1%	Rank history: not on the FY2022–FY2023 lists, #35 in FY2024 and #49 in FY2025; down 27 since FY2020.
77	Intergraph Corporation Through Leica Geosystems Inc. Top agencies DOI (Department of the Interior) Army (Department of the Army)	$105,448	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
78	Donatini, Inc. Top agencies Navy (Department of the Navy) DOS (Department of State) DLA (Defense Logistics Agency)	$104,324	<0.1%	Rank history: not on the FY2022 list, #84 in FY2023, not on the FY2024 list and #61 in FY2025; down 1 since FY2020.
79	Titan One Zero LLC Top agencies Navy (Department of the Navy)	$99,957	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
80	DB Netz AG Regionalnetz Oberpfalz Through DFS Aviation Services GMBH Top agencies Army (Department of the Army)	$99,640	<0.1%	Rank history: #96 in FY2022 and not on the FY2023–FY2025 lists; up 36 since FY2020.
81	U.s. Dynamics Corporation Top agencies DLA (Defense Logistics Agency)	$95,400	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
82	Transaero, Inc. Top agencies USAF (Department of the Air Force)	$94,750	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
83	Applied Concepts, Inc. Top agencies Army (Department of the Army) DOI (Department of the Interior)	$91,615	<0.1%	Rank history: #95 in FY2022, not on the FY2023 list, #94 in FY2024 and #63 in FY2025; up 68 since FY2020.
84	Waygate Technologies USA LP Top agencies Navy (Department of the Navy)	$88,523	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
85	Corporate Source, Inc. Top agencies DLA (Defense Logistics Agency)	$88,368	<0.1%	Rank history: #93 in FY2022 and not on the FY2023–FY2025 lists; up 41 since FY2020.
86	Sicom Systems Ltd Through Accipiter Radar Corporation Top agencies DOT (Department of Transportation)	$85,600	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
87	Motorola Inc Through Motorola Solutions, Inc. Top agencies Army (Department of the Army)	$82,292	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 77 since FY2020.
88	Edmo Distributors, Incorporated Top agencies USAF (Department of the Air Force)	$82,258	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
89	Stealth Supply, Inc. Top agencies Navy (Department of the Navy)	$81,735	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
90	Sajjad, Zainab S. Top agencies Navy (Department of the Navy)	$78,106	<0.1%	Rank history: not on the FY2022–FY2025 lists; up 80 since FY2020.
91	Truck Country of Wisconsin Inc. Top agencies DLA (Defense Logistics Agency)	$76,950	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
92	Polarity Inc. Top agencies Navy (Department of the Navy)	$76,287	<0.1%	Rank history: not on the FY2022–FY2025 lists; down 9 since FY2020.
93	Us21 Inc. Top agencies Army (Department of the Army)	$75,858	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
94	General Dynamics Mission Systems, Inc. Top agencies DOT (Department of Transportation) DLA (Defense Logistics Agency)	$73,215	<0.1%	Rank history: #94 in FY2022 and not on the FY2023–FY2025 lists; down 50 since FY2020.
95	ECI Defense Group, Inc. Top agencies DLA (Defense Logistics Agency)	$71,389	<0.1%	Rank history: not on the FY2022 list, #76 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
96	Heico Aerospace Corporat Through Research Electronics International, L.L.C. Top agencies Navy (Department of the Navy)	$69,950	<0.1%	Rank history: #83 in FY2022, not on the FY2023 list, #88 in FY2024 and not on the FY2025 list; down 21 since FY2020.
97	Dockside Electronics Service, L.L.C. Top agencies Navy (Department of the Navy)	$68,435	<0.1%	Rank history: not on the FY2022 list, #81 in FY2023, not on the FY2024 list and #86 in FY2025; up 39 since FY2020.
98	Custom Marine Electronics Inc. Top agencies Navy (Department of the Navy)	$67,910	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
99	Tristar, Inc. Top agencies Navy (Department of the Navy)	$64,776	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
100	Glidepath Technologies Inc. Top agencies Navy (Department of the Navy)	$64,100	<0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.

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100 of 175 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 $2.62 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 5840 contractors in FY2021?

1. Lockheed Martin Corporation ($1.21B), 2. RTX Corporation ($468M), 3. Northrop Grumman Corporation ($266M), 4. General Dynamics Corporation ($69.8M), 5. BAE Systems PLC ($53.1M), 6. Saab AB ($48.8M), 7. SRC Inc. ($47M), 8. Ultra Electronics Forensic Technology Inc ($45.5M), 9. Diversified Technologies, Inc. ($37.9M), 10. Advanced Technology Systems Company, Inc. (OF Virginia) ($33.8M).

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