Top 100 Contractors in PSC 6605: Navigational Instruments, FY2023

Name: Top 100 Contractors in PSC 6605: Navigational Instruments, FY2023
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2022 – Sep 30, 2023 Code page on GovTribe

The top 10 won 89% of FY2023 PSC 6605 contract dollars

Contract obligations: $548,365,967 Net of deobligations, by contracts coded PSC 6605
Contractors: 221 Parent companies with an obligation
Largest contractor: RTX Corporation $167 million, 29.9% 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 10 awardees, including Raytheon Company, Rockwell Collins, Inc. and Simmonds Precision Products Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) DOT (Department of Transportation)	$166,641,166	29.9%	Rank history: #1 in FY2021, #1 in FY2022, #3 in FY2024 and #4 in FY2025; unchanged since FY2022.
2	Honeywell International Inc. 3 awardees Top agencies Army (Department of the Army) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$135,511,245	24.3%	Rank history: #4 in FY2021, #2 in FY2022, #1 in FY2024 and #1 in FY2025; unchanged since FY2022.
3	BAE Systems PLC 3 awardees, including BAE Systems Information and Electronic Systems Integration Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$70,824,772	12.7%	Rank history: #7 in FY2021, #3 in FY2022, #6 in FY2024 and not on the FY2025 list; unchanged since FY2022.
4	L3Harris Technologies, Inc. 7 awardees, including L3Harris Interstate Electronics Corporation, L3 Technologies, Inc. and L3Harris Maritime Services Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$47,656,062	8.6%	Rank history: #6 in FY2021, #4 in FY2022, #5 in FY2024 and #3 in FY2025; unchanged since FY2022.
5	Northrop Grumman Corporation 4 awardees, including Northrop Grumman Systems Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$42,129,905	7.6%	Rank history: #2 in FY2021, #5 in FY2022, #7 in FY2024 and #5 in FY2025; unchanged since FY2022.
6	Lockheed Martin Corporation 4 awardees, including Sikorsky Aircraft Corporation Top agencies Navy (Department of the Navy) Army (Department of the Army) DLA (Defense Logistics Agency)	$8,393,324	1.5%	Rank history: #72 in FY2021, #18 in FY2022, #25 in FY2024 and #18 in FY2025; up 12 since FY2022.
7	Flir Systems Inc. Through Teledyne Flir Unmanned Ground Systems, Inc. Top agencies Army (Department of the Army)	$6,965,543	1.3%	Rank history: #3 in FY2021, #9 in FY2022, #32 in FY2024 and not on the FY2025 list; up 2 since FY2022.
8	Cammenga & Associates LLC Top agencies DLA (Defense Logistics Agency)	$5,295,975	1.0%	Rank history: #20 in FY2021, #22 in FY2022, not on the FY2024 list and #54 in FY2025; up 14 since FY2022.
9	The Bionetics Corporation 2 awardees Top agencies DOT (Department of Transportation)	$5,092,250	0.9%	Rank history: #12 in FY2021, #10 in FY2022, #11 in FY2024 and #9 in FY2025; up 1 since FY2022.
10	The Charles Stark Draper Laboratory, Inc. Top agencies Navy (Department of the Navy)	$4,706,721	0.8%	Rank history: not on the FY2021–FY2022 lists, #9 in FY2024 and #8 in FY2025; new.
11	The Boeing Company 3 awardees, including Jeppesen Foreflight, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$4,476,909	0.8%	Rank history: #30 in FY2021, #26 in FY2022, #52 in FY2024 and #72 in FY2025; up 15 since FY2022.
12	Altaeros Energies Inc. Top agencies DHS (Department of Homeland Security)	$4,068,615	0.7%	Rank history: not on the FY2021–FY2022 lists, #18 in FY2024 and #15 in FY2025; new.
13	Ball Corp Through Ball Aerospace & Technologies Corp. Top agencies NASA (National Aeronautics and Space Administration)	$4,007,895	0.7%	Rank history: not on the FY2021 list, #15 in FY2022 and not on the FY2024–FY2025 lists; up 2 since FY2022.
14	Kinetx, LLC Top agencies NASA (National Aeronautics and Space Administration)	$3,657,288	0.7%	Rank history: #14 in FY2021, #14 in FY2022, #19 in FY2024 and #10 in FY2025; unchanged since FY2022.
15	New Bedford Panoramex Corp. Top agencies DOT (Department of Transportation)	$3,303,160	0.6%	Rank history: not on the FY2021 list, #8 in FY2022, #10 in FY2024 and #43 in FY2025; down 7 since FY2022.
16	Ruta Supplies Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$3,013,016	0.5%	Rank history: #87 in FY2021, #21 in FY2022, #15 in FY2024 and #21 in FY2025; up 5 since FY2022.
17	Astronautics Corporation of America 2 awardees, including Kearfott Corporation Top agencies Navy (Department of the Navy)	$2,479,359	0.4%	Rank history: not on the FY2021–FY2022 lists, #40 in FY2024 and #25 in FY2025; new.
18	DRS Global Enterprise Solutions Inc Through Leonardo US Cyber and Security Solutions, LLC Top agencies DOT (Department of Transportation)	$2,034,353	0.4%	Rank history: not on the FY2021 list, #16 in FY2022 and not on the FY2024–FY2025 lists; down 2 since FY2022.
19	Applied Systems Engineering Incorporated Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$2,026,162	0.4%	Rank history: #9 in FY2021, #12 in FY2022, #12 in FY2024 and #19 in FY2025; down 7 since FY2022.
20	The Dewey Electronics Corporation 2 awardees Top agencies Navy (Department of the Navy)	$1,756,099	0.3%	Rank history: #42 in FY2021, #17 in FY2022, #16 in FY2024 and #13 in FY2025; down 3 since FY2022.
21	Geodesicx, Inc. Top agencies Navy (Department of the Navy)	$1,649,660	0.3%	Rank history: #17 in FY2021, not on the FY2022 list, #17 in FY2024 and not on the FY2025 list; returned.
22	Systron Donner Inertial Inc. Through Emcore LLC Top agencies Navy (Department of the Navy) WHS (DOD Washington Headquarters Service)	$1,592,882	0.3%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
23	Allied Defense Industries Inc. 2 awardees, including Northern Defense Industries, LLC Top agencies DHS (Department of Homeland Security)	$1,311,223	0.2%	Rank history: #68 in FY2021, #33 in FY2022 and not on the FY2024–FY2025 lists; up 10 since FY2022.
24	Spirent Communications PLC Through Spirent Federal Systems Inc. Top agencies NASA (National Aeronautics and Space Administration)	$993,917	0.2%	Rank history: #55 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
25	Krismark Group, Inc. Through LKD Aerospace, LLC Top agencies USAF (Department of the Air Force)	$967,191	0.2%	Rank history: not on the FY2021 list, #34 in FY2022, #39 in FY2024 and not on the FY2025 list; up 9 since FY2022.
26	Beier Radio, L.L.C. Top agencies Commerce (Department of Commerce) Army (Department of the Army)	$952,026	0.2%	Rank history: #41 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
27	Trimble Inc. 2 awardees, including Applanix Corp Top agencies DOI (Department of the Interior) NASA (National Aeronautics and Space Administration) USDA (Department of Agriculture)	$801,016	0.1%	Rank history: #22 in FY2021, #20 in FY2022, #31 in FY2024 and #12 in FY2025; down 7 since FY2022.
28	Javad Gnss, Inc. Top agencies USDA (Department of Agriculture)	$724,620	0.1%	Rank history: not on the FY2021 list, #48 in FY2022 and not on the FY2024–FY2025 lists; up 20 since FY2022.
29	Triman Industries Inc. Top agencies DLA (Defense Logistics Agency)	$690,346	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
30	Vector Controls Inc. Top agencies DHS (Department of Homeland Security)	$683,228	0.1%	Rank history: #29 in FY2021, #31 in FY2022, #81 in FY2024 and not on the FY2025 list; up 1 since FY2022.
31	Qual-TEC Management Corp Through Carp Industries Corp Top agencies DLA (Defense Logistics Agency)	$656,153	0.1%	Rank history: #59 in FY2021, #43 in FY2022, #99 in FY2024 and not on the FY2025 list; up 12 since FY2022.
32	Creative Map Corporation Top agencies DHS (Department of Homeland Security)	$655,872	0.1%	Rank history: #24 in FY2021, #24 in FY2022 and not on the FY2024–FY2025 lists; down 8 since FY2022.
33	Seiler Instrument and Manufacturing Company, Incorporated Top agencies USDA (Department of Agriculture) Army (Department of the Army)	$582,777	0.1%	Rank history: #70 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; up 91 since FY2022.
34	Advanced Navigation & Positioning Corporation Top agencies USAF (Department of the Air Force)	$536,500	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
35	Seafloor Systems, Inc. Top agencies Navy (Department of the Navy)	$508,762	0.1%	Rank history: not on the FY2021 list, #38 in FY2022 and not on the FY2024–FY2025 lists; up 3 since FY2022.
36	Frontier Precision, Inc. Top agencies DOI (Department of the Interior) USDA (Department of Agriculture)	$490,154	0.1%	Rank history: not on the FY2021–FY2022 lists, #45 in FY2024 and not on the FY2025 list; new.
37	Surface Mount Depot Inc. Top agencies DOT (Department of Transportation)	$461,967	0.1%	Rank history: not on the FY2021–FY2022 lists, #33 in FY2024 and not on the FY2025 list; up 105 since FY2022.
38	Sierra Nevada Company, LLC Top agencies Navy (Department of the Navy)	$386,000	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 103 since FY2022.
39	Heico Aerospace Corporat Through Inertial Airline Services Inc. Top agencies Navy (Department of the Navy)	$359,390	0.1%	Rank history: #51 in FY2021, #79 in FY2022, #23 in FY2024 and #20 in FY2025; up 40 since FY2022.
40	Dumbo Defense Inc. Top agencies DLA (Defense Logistics Agency)	$304,592	0.1%	Rank history: not on the FY2021–FY2022 lists, #54 in FY2024 and #63 in FY2025; new.
41	Arbin Instruments Inc. Top agencies NASA (National Aeronautics and Space Administration)	$304,379	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
42	Ecodata Analytics LLC Top agencies Army (Department of the Army)	$293,248	0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
43	Baron Manufacturing Inc. Top agencies DOT (Department of Transportation)	$279,300	0.1%	Rank history: not on the FY2021 list, #49 in FY2022 and not on the FY2024–FY2025 lists; up 6 since FY2022.
44	Warren Industries Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$269,397	<0.1%	Rank history: not on the FY2021 list, #37 in FY2022, #42 in FY2024 and not on the FY2025 list; down 7 since FY2022.
45	Cubic Digital Intelligence Inc. Through Cubic Defense Applications, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$252,693	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 69 since FY2022.
46	H.l. Dalis, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$251,313	<0.1%	Rank history: #89 in FY2021, not on the FY2022 list, #34 in FY2024 and #88 in FY2025; up 74 since FY2022.
47	Burhani Enterprises Inc. Top agencies DLA (Defense Logistics Agency)	$233,280	<0.1%	Rank history: not on the FY2021–FY2022 lists, #60 in FY2024 and not on the FY2025 list; new.
48	Titan One Zero LLC Top agencies Navy (Department of the Navy)	$228,175	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
49	Lakeworks LLC Top agencies USDA (Department of Agriculture)	$214,200	<0.1%	Rank history: not on the FY2021–FY2022 lists, #38 in FY2024 and #30 in FY2025; new.
50	Dynalec Corporation Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$204,535	<0.1%	Rank history: not on the FY2021 list, #19 in FY2022, #44 in FY2024 and #48 in FY2025; down 31 since FY2022.
51	CMC Electronique Inc Through CMC Electronics Inc. Top agencies DHS (Department of Homeland Security)	$199,280	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
52	Phoenix Trading Inc. Top agencies DLA (Defense Logistics Agency)	$193,789	<0.1%	Rank history: #64 in FY2021, #89 in FY2022 and not on the FY2024–FY2025 lists; up 37 since FY2022.
53	Critical Communications, Controls and Instruments, LLC Top agencies Navy (Department of the Navy)	$193,410	<0.1%	Rank history: not on the FY2021–FY2022 lists, #71 in FY2024 and not on the FY2025 list; new.
54	Wisecom Technologies Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$191,785	<0.1%	Rank history: not on the FY2021 list, #85 in FY2022 and not on the FY2024–FY2025 lists; up 31 since FY2022.
55	Government of Canada Through Canadian Commercial Corporation Top agencies Navy (Department of the Navy)	$173,549	<0.1%	Rank history: not on the FY2021 list, #45 in FY2022 and not on the FY2024–FY2025 lists; down 10 since FY2022.
56	Widefield Technology, Inc. Top agencies Navy (Department of the Navy)	$171,652	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
57	Nagano Keiki Co. Ltd. Through Ashcroft Inc. Top agencies DLA (Defense Logistics Agency)	$170,830	<0.1%	Rank history: #62 in FY2021, #87 in FY2022, not on the FY2024 list and #14 in FY2025; up 30 since FY2022.
58	Kistler Instrument Corporation Top agencies Navy (Department of the Navy) NASA (National Aeronautics and Space Administration)	$169,944	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
59	Curtiss-Wright Corporation Through Penny & Giles Aerospace Limited Top agencies DOT (Department of Transportation)	$165,110	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
60	Donatini, Inc. Top agencies Commerce (Department of Commerce) DHS (Department of Homeland Security)	$158,138	<0.1%	Rank history: #50 in FY2021, #47 in FY2022, #49 in FY2024 and #34 in FY2025; down 13 since FY2022.
61	Pioneer Industries, LLC Top agencies DLA (Defense Logistics Agency)	$157,757	<0.1%	Rank history: not on the FY2021 list, #39 in FY2022 and not on the FY2024–FY2025 lists; down 22 since FY2022.
62	THALES 2 awardees, including Thales Defense & Security Inc. and Thales Avionics, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$153,450	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
63	Strohman Enterprise Inc Top agencies Navy (Department of the Navy) DOJ (Department of Justice)	$145,881	<0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #75 in FY2025; new.
64	Corbett Technology Solutions Inc. Through Star Asset Security LLC Top agencies DOJ (Department of Justice)	$145,124	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
65	Veterans Healthcare Supply Solutions, Inc. Top agencies VA (Department of Veterans Affairs)	$142,105	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
66	Gtaa LLC Top agencies DLA (Defense Logistics Agency)	$138,599	<0.1%	Rank history: #52 in FY2021, #27 in FY2022, #69 in FY2024 and #37 in FY2025; down 39 since FY2022.
67	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency)	$132,554	<0.1%	Rank history: #39 in FY2021, #64 in FY2022, not on the FY2024 list and #57 in FY2025; down 3 since FY2022.
68	Sealite Usa, LLC Top agencies DHS (Department of Homeland Security)	$119,809	<0.1%	Rank history: #96 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
69	Echo81 LLC Top agencies Commerce (Department of Commerce)	$112,810	<0.1%	Rank history: not on the FY2021 list, #58 in FY2022 and not on the FY2024–FY2025 lists; down 11 since FY2022.
70	Dutch Valley Supply Co. Top agencies DLA (Defense Logistics Agency)	$109,639	<0.1%	Rank history: #88 in FY2021, #78 in FY2022, #72 in FY2024 and #70 in FY2025; up 8 since FY2022.
71	Argo Turboserve Corporation Top agencies DLA (Defense Logistics Agency)	$108,570	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
72	Innovasea Marine Systems Canada Inc Top agencies Commerce (Department of Commerce)	$96,860	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
73	Atlas Instrument Co Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$96,610	<0.1%	Rank history: #46 in FY2021, #84 in FY2022, #57 in FY2024 and #52 in FY2025; up 11 since FY2022.
74	Sonardyne Group Ltd Through Sonardyne, Inc. Top agencies Navy (Department of the Navy)	$86,392	<0.1%	Rank history: #97 in FY2021, not on the FY2022 list and not on the FY2024–FY2025 lists; returned.
75	WB Brawley Co Top agencies USAF (Department of the Air Force)	$75,600	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
76	Ducommun Incorporated Through Ducommun Labarge Technologies, Inc. Top agencies Navy (Department of the Navy)	$69,600	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
77	Videoray LLC Top agencies Army (Department of the Army)	$69,316	<0.1%	Rank history: not on the FY2021–FY2022 lists, #36 in FY2024 and not on the FY2025 list; up 42 since FY2022.
78	RTD Embedded Technologies Inc. Top agencies USAF (Department of the Air Force)	$67,725	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
79	Navico Inc. Top agencies DHS (Department of Homeland Security)	$66,038	<0.1%	Rank history: not on the FY2021 list, #80 in FY2022 and not on the FY2024–FY2025 lists; up 1 since FY2022.
80	Stealth Supply Inc Top agencies DLA (Defense Logistics Agency)	$65,820	<0.1%	Rank history: not on the FY2021–FY2022 lists, #53 in FY2024 and #36 in FY2025; new.
81	Kongsberg Gruppen ASA Through Kongsberg Maritime Inc. Top agencies Commerce (Department of Commerce)	$65,184	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 29 since FY2022.
82	Ensil Technical Services Inc. Top agencies DHS (Department of Homeland Security)	$62,720	<0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #81 in FY2025; new.
83	AML Oceanographic Ltd Top agencies Commerce (Department of Commerce)	$62,348	<0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #84 in FY2025; new.
84	R & M Government Services Inc. Top agencies DLA (Defense Logistics Agency)	$61,117	<0.1%	Rank history: not on the FY2021–FY2022 lists, #56 in FY2024 and #79 in FY2025; new.
85	Everbridge, Inc. Top agencies HHS (Department of Health and Human Services)	$60,667	<0.1%	Rank history: #69 in FY2021, #66 in FY2022 and not on the FY2024–FY2025 lists; down 19 since FY2022.
86	Seahorse Defense Supply, LLC Top agencies DHS (Department of Homeland Security)	$60,570	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
87	Barney A Cagle Top agencies Navy (Department of the Navy)	$60,092	<0.1%	Rank history: #45 in FY2021, not on the FY2022 list, #88 in FY2024 and not on the FY2025 list; up 21 since FY2022.
88	Technical Communities Inc Top agencies NASA (National Aeronautics and Space Administration)	$59,425	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
89	HID Global Corp Top agencies HHS (Department of Health and Human Services)	$56,703	<0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #68 in FY2025; new.
90	Valkyrie Enterprises, LLC Top agencies DHS (Department of Homeland Security)	$56,563	<0.1%	Rank history: #37 in FY2021, not on the FY2022 list, not on the FY2024 list and #46 in FY2025; returned.
91	Keyence Corporation Through Keyence Corporation of America Top agencies NASA (National Aeronautics and Space Administration)	$55,834	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
92	Steve Lieber & Associates, Inc. Top agencies USAF (Department of the Air Force)	$55,240	<0.1%	Rank history: not on the FY2021–FY2022 lists, #50 in FY2024 and #89 in FY2025; up 30 since FY2022.
93	Don Orfield Top agencies DLA (Defense Logistics Agency)	$54,902	<0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #69 in FY2025; new.
94	Echelon Supply and Service, Inc. Top agencies DLA (Defense Logistics Agency)	$54,738	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 23 since FY2022.
95	Broadcom Inc. Through Avago Technologies US Inc. Top agencies NASA (National Aeronautics and Space Administration)	$52,230	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; new.
96	Sigma TECH Enterprises, Inc. Top agencies DLA (Defense Logistics Agency)	$51,256	<0.1%	Rank history: #75 in FY2021, #69 in FY2022, #62 in FY2024 and #44 in FY2025; down 27 since FY2022.
97	Dcx-Chol Enterprises, Inc. Top agencies Navy (Department of the Navy)	$50,000	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 65 since FY2022.
98	Tallyman LLC Top agencies DLA (Defense Logistics Agency)	$49,231	<0.1%	Rank history: not on the FY2021–FY2022 lists and not on the FY2024–FY2025 lists; up 38 since FY2022.
99	Ample Marine LLC Top agencies DHS (Department of Homeland Security)	$46,070	<0.1%	Rank history: not on the FY2021–FY2022 lists, not on the FY2024 list and #97 in FY2025; new.
100	Frasca International, Inc. Top agencies DOT (Department of Transportation)	$45,750	<0.1%	Rank history: not on the FY2021 list, #94 in FY2022, #79 in FY2024 and not on the FY2025 list; down 6 since FY2022.

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100 of 221 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 $557 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 2023 ran Oct 1, 2022 – Sep 30, 2023. 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 FY2022. "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 FY2022 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 6605 contractors in FY2023?

1. RTX Corporation ($167M), 2. Honeywell International Inc. ($136M), 3. BAE Systems PLC ($70.8M), 4. L3Harris Technologies, Inc. ($47.7M), 5. Northrop Grumman Corporation ($42.1M), 6. Lockheed Martin Corporation ($8.39M), 7. Flir Systems Inc. ($6.97M), 8. Cammenga & Associates LLC ($5.3M), 9. The Bionetics Corporation ($5.09M), 10. The Charles Stark Draper Laboratory, Inc. ($4.71M).

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