Top 100 Contractors in PSC 5985: Antennas, Waveguide, and Related Equipment, FY2021

Name: Top 100 Contractors in PSC 5985: Antennas, Waveguide, and Related Equipment, FY2021
Creator: GovTribe

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

The top 10 won 57% of FY2021 PSC 5985 contract dollars

Contract obligations: $374,597,850 Net of deobligations, by contracts coded PSC 5985
Contractors: 628 Parent companies with an obligation
Largest contractor: RTX Corporation $57.2 million, 14.8% 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 14 awardees, including Raytheon Systems Limited, Raytheon Company and Rockwell Collins, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$57,207,385	14.8%	Rank history: #1 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; up 1 since FY2020.
2	L3Harris Technologies, Inc. 16 awardees, including L3 Technologies, Inc., Fisica Applied Technologies, Inc. and Narda Holdings, Inc. Top agencies Navy (Department of the Navy) DOT (Department of Transportation) DLA (Defense Logistics Agency)	$32,340,266	8.4%	Rank history: #6 in FY2022, #7 in FY2023, #4 in FY2024 and #8 in FY2025; up 1 since FY2020.
3	R F Products, Inc. Top agencies Navy (Department of the Navy)	$24,021,896	6.2%	Rank history: #3 in FY2022, #5 in FY2023, #15 in FY2024 and #27 in FY2025; new, not ranked in FY2020.
4	Lockheed Martin Corporation 10 awardees, including Lockheed Martin Sippican, Inc., Derco Aerospace, Inc. and Sikorsky Aircraft Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$18,233,225	4.7%	Rank history: #9 in FY2022, #9 in FY2023, #8 in FY2024 and #9 in FY2025; up 5 since FY2020.
5	Blue TECH Inc. Top agencies Navy (Department of the Navy)	$17,940,000	4.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
6	Kbr, Inc. 2 awardees, including KBR Wyle Services, LLC Top agencies Commerce (Department of Commerce) DLA (Defense Logistics Agency)	$15,809,927	4.1%	Rank history: #5 in FY2022, #13 in FY2023, #29 in FY2024 and not on the FY2025 list; up 480 since FY2020.
7	Mayflower Communications Company, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force)	$15,646,122	4.0%	Rank history: #19 in FY2022, #2 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2020.
8	Intific Inc 3 awardees, including Gatr Technologies, Inc. and Cubic Defense Applications, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$14,629,610	3.8%	Rank history: not on the FY2022–FY2025 lists; down 7 since FY2020.
9	Georgia TECH Research Corp Through Georgia TECH Applied Research Corp Top agencies USAF (Department of the Air Force)	$13,373,808	3.5%	Rank history: not on the FY2022–FY2025 lists; down 4 since FY2020.
10	General Dynamics Corporation 6 awardees, including General Dynamics Mission Systems, Inc. and GPS Source Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$11,752,360	3.0%	Rank history: #4 in FY2022, #3 in FY2023, #20 in FY2024 and #47 in FY2025; down 2 since FY2020.
11	Northrop Grumman Corporation 7 awardees, including Northrop Grumman Systems Corporation Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$8,167,667	2.1%	Rank history: #7 in FY2022, #6 in FY2023, #14 in FY2024 and #7 in FY2025; down 4 since FY2020.
12	Cynergy Professional Systems LLC Top agencies Treasury (Department of the Treasury) USAF (Department of the Air Force) DOS (Department of State)	$6,232,640	1.6%	Rank history: not on the FY2022–FY2024 lists and #46 in FY2025; new, not ranked in FY2020.
13	Science Applications International Corporation 2 awardees, including Asrc Federal Facilities Logistics, LLC Top agencies Army (Department of the Army) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$5,018,078	1.3%	Rank history: #18 in FY2022, #16 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2020.
14	Seacorp, LLC Top agencies Navy (Department of the Navy)	$4,788,274	1.2%	Rank history: #17 in FY2022, #17 in FY2023, #18 in FY2024 and #16 in FY2025; new, not ranked in FY2020.
15	Cobham Advanced Electronic Solutions Inc. 4 awardees, including Caes Systems LLC, Cobham Exeter, Inc. and Frontgrade Technologies Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$4,698,870	1.2%	Rank history: not on the FY2022 list, #56 in FY2023 and not on the FY2024–FY2025 lists; up 11 since FY2020.
16	Ubc, Inc. Top agencies Navy (Department of the Navy)	$4,500,392	1.2%	Rank history: #43 in FY2022, #31 in FY2023, #25 in FY2024 and #39 in FY2025; new, not ranked in FY2020.
17	Mission Solutions Group Inc. Through Marshall Communications Corp Top agencies USAF (Department of the Air Force)	$3,657,996	0.9%	Rank history: #26 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
18	Rodelco Electronics Corp Top agencies DLA (Defense Logistics Agency)	$3,377,673	0.9%	Rank history: #27 in FY2022, #32 in FY2023, #36 in FY2024 and #78 in FY2025; up 20 since FY2020.
19	Kratos Defense & Security Solutions, Inc. 3 awardees, including General Microwave Corporation, Kratos Antenna Solutions Corporation and Kratos Systems and Solutions, Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force) Army (Department of the Army)	$2,979,401	0.8%	Rank history: #15 in FY2022, #14 in FY2023, #52 in FY2024 and not on the FY2025 list; up 135 since FY2020.
20	R.a. Miller Industries, Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) USAF (Department of the Air Force)	$2,779,922	0.7%	Rank history: #21 in FY2022, #11 in FY2023, #21 in FY2024 and #36 in FY2025; down 7 since FY2020.
21	The Will-Burt Company 2 awardees Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$2,748,088	0.7%	Rank history: #22 in FY2022, #23 in FY2023, #39 in FY2024 and not on the FY2025 list; up 4 since FY2020.
22	Ametek Inc. Through Nsi-Mi Technologies Inc. Top agencies Navy (Department of the Navy)	$2,656,000	0.7%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
23	Southwest Research Institute Top agencies Navy (Department of the Navy)	$2,410,223	0.6%	Rank history: #30 in FY2022, #45 in FY2023, #24 in FY2024 and #25 in FY2025; down 9 since FY2020.
24	The Boeing Company 8 awardees, including Digital Receiver Technology, Inc., Argon ST, Inc. and Liquid Robotics, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) DLA (Defense Logistics Agency)	$2,295,131	0.6%	Rank history: #14 in FY2022, #47 in FY2023, #23 in FY2024 and #10 in FY2025; up 25 since FY2020.
25	Serco North America (Holdings) Inc Through Serco Inc. Top agencies Navy (Department of the Navy)	$2,254,440	0.6%	Rank history: not on the FY2022–FY2025 lists; up 306 since FY2020.
26	Griffon Corporation 2 awardees, including Telephonics Corp Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$2,247,015	0.6%	Rank history: not on the FY2022 list, #29 in FY2023 and not on the FY2024–FY2025 lists; up 6 since FY2020.
27	General Dynamics Satcom Technologies Inc. 5 awardees, including CPI Satcom & Antenna Technologies Inc. and CPI Electron Device Business, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) USAF (Department of the Air Force)	$2,189,635	0.6%	Rank history: #96 in FY2022, #73 in FY2023, #96 in FY2024 and not on the FY2025 list; down 16 since FY2020.
28	Dynamic Systems Inc. Top agencies Navy (Department of the Navy)	$2,137,298	0.6%	Rank history: #28 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
29	Amentum Services, Inc. Top agencies USAF (Department of the Air Force)	$2,136,530	0.6%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
30	New TECH Solutions, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$2,134,496	0.6%	Rank history: #31 in FY2022, not on the FY2023 list, #38 in FY2024 and #26 in FY2025; up 21 since FY2020.
31	Microwave Engineering Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$1,787,462	0.5%	Rank history: #45 in FY2022, #27 in FY2023, #30 in FY2024 and #38 in FY2025; down 7 since FY2020.
32	Star Dynamics Corp Top agencies Army (Department of the Army)	$1,693,390	0.4%	Rank history: #80 in FY2022, #71 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
33	ECI Defense Group, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,659,196	0.4%	Rank history: #92 in FY2022, #15 in FY2023, #26 in FY2024 and #17 in FY2025; down 10 since FY2020.
34	Conexus Inc. Top agencies Army (Department of the Army)	$1,652,438	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
35	Loughmiller Machine, Tool & Design Top agencies Navy (Department of the Navy)	$1,569,440	0.4%	Rank history: not on the FY2022–FY2024 lists and #53 in FY2025; new, not ranked in FY2020.
36	Metgreen Solutions Inc. Top agencies Navy (Department of the Navy)	$1,555,643	0.4%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
37	Briartek Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,272,241	0.3%	Rank history: not on the FY2022–FY2025 lists; up 85 since FY2020.
38	Avwatch, Inc. Top agencies USAF (Department of the Air Force)	$1,217,583	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
39	Antenna Research Associates, Incorporated Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,212,496	0.3%	Rank history: #24 in FY2022 and not on the FY2023–FY2025 lists; up 6 since FY2020.
40	Government of Canada Through Canadian Commercial Corporation Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,197,268	0.3%	Rank history: #49 in FY2022, #12 in FY2023 and not on the FY2024–FY2025 lists; down 30 since FY2020.
41	Microtech Inc. Top agencies DLA (Defense Logistics Agency) Commerce (Department of Commerce)	$1,123,145	0.3%	Rank history: #44 in FY2022, #36 in FY2023, #48 in FY2024 and #32 in FY2025; down 6 since FY2020.
42	Teledyne Technologies Incorporated 2 awardees, including Teledyne Defense Electronics, LLC and Teledyne Flir Maritime US, Inc. Top agencies Commerce (Department of Commerce) DHS (Department of Homeland Security)	$1,109,066	0.3%	Rank history: not on the FY2022–FY2025 lists; up 139 since FY2020.
43	Raytheon Company 2 awardees Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$1,095,494	0.3%	Rank history: not on the FY2022–FY2025 lists; up 285 since FY2020.
44	Centuria Corporation Top agencies Commerce (Department of Commerce)	$1,050,184	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
45	RLC Electronics, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,004,685	0.3%	Rank history: #52 in FY2022, #44 in FY2023, #44 in FY2024 and #35 in FY2025; down 4 since FY2020.
46	BAE Systems PLC 4 awardees, including BAE Systems Information and Electronic Systems Integration Inc. and BAE Systems Land & Armaments L.P. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$999,377	0.3%	Rank history: #70 in FY2022, #37 in FY2023 and not on the FY2024–FY2025 lists; up 1 since FY2020.
47	Cubic Digital Intelligence Inc. 2 awardees, including Cubic Defense Applications, Inc. and Gatr Technologies, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$998,833	0.3%	Rank history: #2 in FY2022, #8 in FY2023, #35 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
48	Technical Communities, Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army) DLA (Defense Logistics Agency)	$964,576	0.2%	Rank history: not on the FY2022–FY2023 lists, #80 in FY2024 and #81 in FY2025; up 7 since FY2020.
49	Comtech Satellite Network Technologies, Inc. Top agencies USAF (Department of the Air Force)	$961,165	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
50	Dayton-Granger, Inc. Top agencies DLA (Defense Logistics Agency)	$952,713	0.2%	Rank history: #33 in FY2022, #42 in FY2023, #45 in FY2024 and #24 in FY2025; down 21 since FY2020.
51	Cobham Advanced Electron 3 awardees, including Frontgrade Technologies Inc., Caes Systems LLC and Cobham Exeter, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) DHS (Department of Homeland Security)	$947,642	0.2%	Rank history: #75 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
52	Resonant Sciences LLC Top agencies USAF (Department of the Air Force)	$910,159	0.2%	Rank history: not on the FY2022–FY2025 lists; down 32 since FY2020.
53	Tribalco LLC Top agencies DOE (Department of Energy) DHS (Department of Homeland Security)	$906,328	0.2%	Rank history: #47 in FY2022 and not on the FY2023–FY2025 lists; down 37 since FY2020.
54	Daico Industries, Inc. Top agencies DLA (Defense Logistics Agency) DOT (Department of Transportation)	$904,607	0.2%	Rank history: #57 in FY2022, not on the FY2023 list, #66 in FY2024 and #43 in FY2025; up 34 since FY2020.
55	Advanced Computer Concepts, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$883,615	0.2%	Rank history: #13 in FY2022, #79 in FY2023, #17 in FY2024 and #5 in FY2025; up 57 since FY2020.
56	Tower Solutions LLC Top agencies USAF (Department of the Air Force)	$811,345	0.2%	Rank history: not on the FY2022 list, #93 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
57	Mu-Del Electronics LLC Top agencies Commerce (Department of Commerce) Navy (Department of the Navy)	$800,790	0.2%	Rank history: not on the FY2022–FY2025 lists; up 341 since FY2020.
58	Telemetry & Communications Systems, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$787,570	0.2%	Rank history: #39 in FY2022, not on the FY2023–FY2024 lists and #31 in FY2025; up 73 since FY2020.
59	Production Engineering Corporation Top agencies Navy (Department of the Navy)	$768,090	0.2%	Rank history: not on the FY2022 list, #99 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
60	Thales 5 awardees, including Thales Defense & Security Inc., Tampa Microwave, LLC and Thales Usa, Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force) Navy (Department of the Navy)	$751,392	0.2%	Rank history: #68 in FY2022 and not on the FY2023–FY2025 lists; down 32 since FY2020.
61	Antenna Products Corporation Top agencies Navy (Department of the Navy)	$744,165	0.2%	Rank history: not on the FY2022–FY2025 lists; up 49 since FY2020.
62	Communications Professionals Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$743,112	0.2%	Rank history: #55 in FY2022, #52 in FY2023 and not on the FY2024–FY2025 lists; down 26 since FY2020.
63	Vantage Associates Inc. 2 awardees Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$727,401	0.2%	Rank history: #29 in FY2022, #33 in FY2023, #33 in FY2024 and not on the FY2025 list; down 13 since FY2020.
64	Tower Inspection Inc. Top agencies Commerce (Department of Commerce)	$706,190	0.2%	Rank history: not on the FY2022 list, #84 in FY2023, #81 in FY2024 and #56 in FY2025; new, not ranked in FY2020.
65	Sirius Computer Solutions, LLC Through Sirius Federal LLC Top agencies Navy (Department of the Navy)	$699,600	0.2%	Rank history: not on the FY2022–FY2025 lists; up 6 since FY2020.
66	CACI International Inc. Through Mastodon Design LLC Top agencies DOJ (Department of Justice)	$697,820	0.2%	Rank history: #37 in FY2022 and not on the FY2023–FY2025 lists; up 188 since FY2020.
67	Government & Industrial Supply, Inc. Top agencies Navy (Department of the Navy)	$685,556	0.2%	Rank history: not on the FY2022–FY2025 lists; down 34 since FY2020.
68	Moog Inc. 3 awardees, including Quickset Defense Technologies LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$600,094	0.2%	Rank history: not on the FY2022 list, #69 in FY2023, #64 in FY2024 and not on the FY2025 list; up 69 since FY2020.
69	Allied Defense Industries Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$577,704	0.1%	Rank history: not on the FY2022 list, #21 in FY2023 and not on the FY2024–FY2025 lists; up 88 since FY2020.
70	J.g.w. (International) Ltd. Top agencies DLA (Defense Logistics Agency)	$568,842	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
71	DB Systems, Inc. Top agencies DOT (Department of Transportation)	$564,454	0.1%	Rank history: #41 in FY2022, #41 in FY2023, #74 in FY2024 and #15 in FY2025; up 44 since FY2020.
72	Triman Industries Inc. Top agencies DLA (Defense Logistics Agency)	$550,431	0.1%	Rank history: #35 in FY2022, #39 in FY2023, #10 in FY2024 and #20 in FY2025; up 2 since FY2020.
73	ETI Tech LLC Through Starwin Industries, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$529,588	0.1%	Rank history: #56 in FY2022, #40 in FY2023 and not on the FY2024–FY2025 lists; down 1 since FY2020.
74	Heico Aerospace Corporat 4 awardees, including Aerospace & Commercial Technologies, LLC, Transformational Security, LLC and Seal Dynamics LLC Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$513,610	0.1%	Rank history: #38 in FY2022, #20 in FY2023, #54 in FY2024 and #40 in FY2025; down 7 since FY2020.
75	Ball Corp Through BAE Systems Space & Mission Systems Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$509,815	0.1%	Rank history: not on the FY2022–FY2025 lists; down 44 since FY2020.
76	A&H Security Enterprises, LLC Top agencies DOJ (Department of Justice) DHS (Department of Homeland Security)	$493,948	0.1%	Rank history: not on the FY2022–FY2025 lists; up 411 since FY2020.
77	S I T Corporation Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security) Navy (Department of the Navy)	$460,586	0.1%	Rank history: not on the FY2022–FY2023 lists, #71 in FY2024 and #42 in FY2025; down 18 since FY2020.
78	Crane Co 3 awardees, including Eldec Aerospace Corp, Crane Electronics, Inc. and Merrimac Industries, Inc. Top agencies DLA (Defense Logistics Agency) DOT (Department of Transportation)	$459,895	0.1%	Rank history: #77 in FY2022 and not on the FY2023–FY2025 lists; up 20 since FY2020.
79	Epoch Concepts LLC Top agencies Navy (Department of the Navy)	$454,260	0.1%	Rank history: not on the FY2022–FY2025 lists; up 150 since FY2020.
80	Hensoldt Inc. Top agencies DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$452,140	0.1%	Rank history: not on the FY2022–FY2025 lists; up 13 since FY2020.
81	Trimble Inc. 3 awardees, including Applanix Corp Top agencies Commerce (Department of Commerce) DLA (Defense Logistics Agency)	$446,981	0.1%	Rank history: not on the FY2022–FY2025 lists; up 23 since FY2020.
82	TECH Comm Inc. Top agencies DHS (Department of Homeland Security)	$446,462	0.1%	Rank history: not on the FY2022–FY2025 lists; up 288 since FY2020.
83	Denke Laboratories, Inc. Top agencies DLA (Defense Logistics Agency) DOT (Department of Transportation)	$444,068	0.1%	Rank history: #79 in FY2022, #74 in FY2023, #67 in FY2024 and #74 in FY2025; up 69 since FY2020.
84	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$442,463	0.1%	Rank history: #95 in FY2022, not on the FY2023–FY2024 lists and #77 in FY2025; up 23 since FY2020.
85	Range Communication Inc. Top agencies Navy (Department of the Navy)	$440,654	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
86	Phoenix Trading Inc. Top agencies DLA (Defense Logistics Agency)	$438,610	0.1%	Rank history: not on the FY2022–FY2025 lists; down 29 since FY2020.
87	Newsat North America, LLC Top agencies USAF (Department of the Air Force) DOS (Department of State) Navy (Department of the Navy)	$427,816	0.1%	Rank history: not on the FY2022–FY2023 lists, #82 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
88	Ferrite Microwave Technologies, LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$424,978	0.1%	Rank history: not on the FY2022–FY2025 lists; down 45 since FY2020.
89	Special Operations Supply LLC Top agencies USSOCOM (United States Special Operations Command) USAF (Department of the Air Force)	$421,943	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
90	Tyonek Native Corporatio Through Tyonek Engineering & Agile Manufacturing LLC Top agencies Army (Department of the Army)	$416,262	0.1%	Rank history: not on the FY2022 list, #78 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
91	Kratos S2, Inc. Top agencies Navy (Department of the Navy)	$401,160	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
92	Cody M Stevens Construction Inc. Top agencies Navy (Department of the Navy)	$399,968	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
93	Ultra Electronics Forensic Technology Inc 2 awardees, including Caes Mission Systems LLC and Ultra Electronics TCS Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$398,912	0.1%	Rank history: #20 in FY2022, #26 in FY2023 and not on the FY2024–FY2025 lists; down 53 since FY2020.
94	Human Technologies Corp Top agencies DOS (Department of State)	$393,531	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
95	2037706 Ontario Inc Through Wade Antenna Inc. Top agencies Navy (Department of the Navy) DOT (Department of Transportation) DLA (Defense Logistics Agency)	$390,744	0.1%	Rank history: not on the FY2022 list, #94 in FY2023 and not on the FY2024–FY2025 lists; down 10 since FY2020.
96	ACG Systems, Inc. Top agencies Army (Department of the Army) USAF (Department of the Air Force) DOS (Department of State)	$380,840	0.1%	Rank history: #98 in FY2022, #48 in FY2023 and not on the FY2024–FY2025 lists; up 20 since FY2020.
97	Concurrent Technologies Corp Top agencies Navy (Department of the Navy)	$376,530	0.1%	Rank history: not on the FY2022 list, #76 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
98	Martin Military Inc. Top agencies DLA (Defense Logistics Agency)	$375,350	0.1%	Rank history: #59 in FY2022, #57 in FY2023, #32 in FY2024 and #50 in FY2025; down 4 since FY2020.
99	General Atomic Technologies Corporation Through General Atomics Aeronautical Systems, Inc. Top agencies Navy (Department of the Navy)	$344,522	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
100	Espy LLC Top agencies Army (Department of the Army)	$337,213	0.1%	Rank history: not on the FY2022–FY2025 lists; up 6 since FY2020.

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100 of 628 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 $387 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 PSC 5985 contractors in FY2021?

1. RTX Corporation ($57.2M), 2. L3Harris Technologies, Inc. ($32.3M), 3. R F Products, Inc. ($24M), 4. Lockheed Martin Corporation ($18.2M), 5. Blue TECH Inc. ($17.9M), 6. Kbr, Inc. ($15.8M), 7. Mayflower Communications Company, Inc. ($15.6M), 8. Intific Inc ($14.6M), 9. Georgia TECH Research Corp ($13.4M), 10. General Dynamics Corporation ($11.8M).

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