Top 88 Contractors in PSC 5845: Underwater Sound Equipment, Jul 2025–Jun 2026

Name: Top 88 Contractors in PSC 5845: Underwater Sound Equipment, Jul 2025–Jun 2026
Creator: GovTribe

Parent companies by net contract obligations Jul 1, 2025 – Jun 30, 2026 Code page on GovTribe

The top 10 won 87% of PSC 5845 contract dollars from July 2025 through June 2026

Contract obligations: $894,123,950 Net of deobligations, by contracts coded PSC 5845
Contractors: 92 Parent companies with an obligation
Largest contractor: Undersea Sensor Systems, Inc. $378 million, 39.5% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 88 rows as CSV

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Undersea Sensor Systems, Inc. Top agencies Navy (Department of the Navy)	$378,100,454	39.5%	Rank history: not on the FY2021–FY2024 lists and #1 in FY2025; unchanged since Jul 2024–Jun 2025.
2	RTX Corporation 6 awardees, including Sparton Deleon Springs, LLC, Goodrich Corporation and Raytheon Company Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$118,816,455	12.4%	Rank history: #6 in FY2021, #12 in FY2022, #14 in FY2023, #1 in FY2024 and #3 in FY2025; unchanged since Jul 2024–Jun 2025.
3	L3Harris Technologies, Inc. 8 awardees, including L3 Technologies, Inc., L-3 Chesapeake Sciences Corporation and L3Harris Maritime Services Inc. Top agencies Navy (Department of the Navy)	$115,514,238	12.1%	Rank history: #3 in FY2021, #2 in FY2022, #2 in FY2023, #12 in FY2024 and #2 in FY2025; unchanged since Jul 2024–Jun 2025.
4	Huntington Ingalls Industries, Inc. Through Huntington Ingalls Inc. Top agencies Navy (Department of the Navy)	$85,001,543	8.9%	Rank history: #12 in FY2021, #4 in FY2022, #9 in FY2023, #8 in FY2024 and #4 in FY2025; up 2 since Jul 2024–Jun 2025.
5	Sedna Digital Solutions, LLC Top agencies Navy (Department of the Navy)	$39,904,151	4.2%	Rank history: #8 in FY2021, #8 in FY2022, #5 in FY2023, #7 in FY2024 and #6 in FY2025; up 2 since Jul 2024–Jun 2025.
6	Northrop Grumman Corporation Through Northrop Grumman Systems Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$25,201,467	2.6%	Rank history: #15 in FY2021, #18 in FY2022, #22 in FY2023, #14 in FY2024 and #8 in FY2025; up 39 since Jul 2024–Jun 2025.
7	Leidos Holdings, Inc. 2 awardees, including Leidos, Inc. Top agencies Navy (Department of the Navy)	$21,042,155	2.2%	Rank history: #4 in FY2021, #7 in FY2022, #6 in FY2023, #10 in FY2024 and #9 in FY2025; up 11 since Jul 2024–Jun 2025.
8	THALES Through Thales Defense & Security Inc. Top agencies Navy (Department of the Navy)	$20,235,377	2.1%	Rank history: #14 in FY2021, #14 in FY2022, #8 in FY2023, #40 in FY2024 and #19 in FY2025; up 14 since Jul 2024–Jun 2025.
9	Delphinus Engineering LLC Top agencies Navy (Department of the Navy)	$14,549,938	1.5%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
10	Geospace Technologies Corporation Through Quantum Technology Sciences, Inc. Top agencies Navy (Department of the Navy)	$10,843,003	1.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
11	Syqwest LLC Top agencies Navy (Department of the Navy)	$10,218,668	1.1%	Rank history: #13 in FY2021, #10 in FY2022, #11 in FY2023, #13 in FY2024 and #10 in FY2025; down 1 since Jul 2024–Jun 2025.
12	Massa Products Corporation Top agencies Navy (Department of the Navy)	$8,113,982	0.8%	Rank history: #11 in FY2021, #9 in FY2022, #10 in FY2023, #9 in FY2024 and #11 in FY2025; down 3 since Jul 2024–Jun 2025.
13	Teledyne Instruments Inc. Top agencies Navy (Department of the Navy)	$7,243,349	0.8%	Rank history: #40 in FY2021, not on the FY2022–FY2024 lists and #13 in FY2025; up 10 since Jul 2024–Jun 2025.
14	Qortek Inc. Top agencies Navy (Department of the Navy)	$6,568,815	0.7%	Rank history: not on the FY2021–FY2024 lists and #20 in FY2025; new, not ranked in Jul 2024–Jun 2025.
15	Handymench LLC Top agencies Army (Department of the Army)	$4,106,813	0.4%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
16	Kongsberg Underwater Technology LLC Through Kongsberg Discovery US, LLC Top agencies Navy (Department of the Navy)	$3,819,770	0.4%	Rank history: not on the FY2021–FY2022 lists, #78 in FY2023, #30 in FY2024 and #15 in FY2025; up 14 since Jul 2024–Jun 2025.
17	Esco Technologies Inc. 2 awardees, including Globe Composite Solutions, LLC and Westland Technologies, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$3,666,168	0.4%	Rank history: #19 in FY2021, #19 in FY2022, #27 in FY2023, #16 in FY2024 and #26 in FY2025; unchanged since Jul 2024–Jun 2025.
18	General Dynamics Corporation 3 awardees, including General Dynamics Mission Systems, Inc. and General Dynamics Information Technology, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$2,998,097	0.3%	Rank history: not on the FY2021 list, #93 in FY2022, not on the FY2023 list, #94 in FY2024 and #16 in FY2025; up 2 since Jul 2024–Jun 2025.
19	Lockheed Martin Corporation 4 awardees, including Sikorsky Aircraft Corporation and Derco Aerospace, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$2,988,981	0.3%	Rank history: #2 in FY2021, #3 in FY2022, #3 in FY2023, #3 in FY2024 and #5 in FY2025; down 15 since Jul 2024–Jun 2025.
20	Fairwinds Technologies LLC Top agencies Navy (Department of the Navy)	$2,962,268	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
21	L3 Technologies, Inc. 2 awardees Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$2,734,461	0.3%	Rank history: not on the FY2021–FY2023 lists, #17 in FY2024 and #12 in FY2025; down 10 since Jul 2024–Jun 2025.
22	High Bridge Solutions, LLC Top agencies Navy (Department of the Navy)	$2,305,234	0.2%	Rank history: not on the FY2021–FY2024 lists and #14 in FY2025; down 10 since Jul 2024–Jun 2025.
23	Heico Aerospace Corporat Through Seal Dynamics LLC Top agencies DLA (Defense Logistics Agency)	$1,903,038	0.2%	Rank history: #21 in FY2021, #16 in FY2022, #19 in FY2023, #23 in FY2024 and #18 in FY2025; down 10 since Jul 2024–Jun 2025.
24	Falmouth Scientific Inc. Top agencies Navy (Department of the Navy)	$1,768,311	0.2%	Rank history: not on the FY2021–FY2022 lists, #32 in FY2023, #29 in FY2024 and #21 in FY2025; unchanged since Jul 2024–Jun 2025.
25	Knudsen Systems Inc. Top agencies Navy (Department of the Navy)	$1,448,520	0.2%	Rank history: not on the FY2021 list, #57 in FY2022, #43 in FY2023, #89 in FY2024 and #89 in FY2025; up 69 since Jul 2024–Jun 2025.
26	Metocean Telematics Limited 2 awardees Top agencies DHS (Department of Homeland Security)	$1,287,710	0.1%	Rank history: #27 in FY2021, #15 in FY2022, #24 in FY2023, #38 in FY2024 and #24 in FY2025; down 1 since Jul 2024–Jun 2025.
27	Scientific Solutions Inc. Top agencies Navy (Department of the Navy)	$1,004,000	0.1%	Rank history: not on the FY2021–FY2023 lists, #33 in FY2024 and #28 in FY2025; up 4 since Jul 2024–Jun 2025.
28	Airbus DS Military Aircraft Inc. Through Tkms Atlas North America LLC Top agencies Navy (Department of the Navy)	$866,413	0.1%	Rank history: not on the FY2021–FY2024 lists and #29 in FY2025; up 13 since Jul 2024–Jun 2025.
29	Mikel Inc. Top agencies Navy (Department of the Navy)	$776,253	0.1%	Rank history: #45 in FY2021, not on the FY2022 list, #28 in FY2023, #34 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
30	Access Electronics LLC Top agencies DLA (Defense Logistics Agency)	$745,310	0.1%	Rank history: not on the FY2021–FY2024 lists and #27 in FY2025; new, not ranked in Jul 2024–Jun 2025.
31	Advanced Telemetry Systems Inc. Top agencies DOI (Department of the Interior)	$654,095	0.1%	Rank history: #18 in FY2021, #50 in FY2022, #23 in FY2023, #26 in FY2024 and #25 in FY2025; down 3 since Jul 2024–Jun 2025.
32	Triangle Rubber Co.inc. Top agencies Navy (Department of the Navy)	$640,591	0.1%	Rank history: not on the FY2021–FY2024 lists and #23 in FY2025; down 5 since Jul 2024–Jun 2025.
33	Culmen International, LLC Top agencies Navy (Department of the Navy)	$630,841	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
34	The Boeing Company 2 awardees Top agencies Navy (Department of the Navy)	$608,411	0.1%	Rank history: #30 in FY2021, #34 in FY2022, #63 in FY2023, #11 in FY2024 and #22 in FY2025; down 15 since Jul 2024–Jun 2025.
35	Us21 Inc. Top agencies USAF (Department of the Air Force)	$522,585	0.1%	Rank history: not on the FY2021–FY2024 lists and #39 in FY2025; new, not ranked in Jul 2024–Jun 2025.
36	Jaia Robotics Inc. Top agencies Navy (Department of the Navy)	$512,630	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
37	Sechan Electronics Inc. Top agencies Navy (Department of the Navy)	$458,014	<0.1%	Rank history: #99 in FY2021, not on the FY2022 list, #26 in FY2023, #15 in FY2024 and #34 in FY2025; down 11 since Jul 2024–Jun 2025.
38	Stark Precision Machine, LLC Top agencies Navy (Department of the Navy)	$335,472	<0.1%	Rank history: not on the FY2021–FY2022 lists, #66 in FY2023, not on the FY2024 list and #33 in FY2025; new, not ranked in Jul 2024–Jun 2025.
39	Experimental Machine Inc. Top agencies Navy (Department of the Navy)	$259,300	<0.1%	Rank history: not on the FY2021 list, #41 in FY2022, not on the FY2023–FY2024 lists and #17 in FY2025; down 25 since Jul 2024–Jun 2025.
40	Atlantic Diving Supply, Inc. Top agencies DLA (Defense Logistics Agency)	$240,851	<0.1%	Rank history: not on the FY2021–FY2023 lists, #74 in FY2024 and #38 in FY2025; up 26 since Jul 2024–Jun 2025.
41	Oeco, LLC Top agencies Navy (Department of the Navy)	$215,323	<0.1%	Rank history: not on the FY2021–FY2023 lists, #53 in FY2024 and #41 in FY2025; down 5 since Jul 2024–Jun 2025.
42	Arete Associates, Inc. Top agencies DLA (Defense Logistics Agency)	$170,883	<0.1%	Rank history: not on the FY2021–FY2024 lists and #71 in FY2025; up 20 since Jul 2024–Jun 2025.
43	Villa Machine Associates, Inc. Top agencies Navy (Department of the Navy)	$166,101	<0.1%	Rank history: not on the FY2021–FY2024 lists and #35 in FY2025; up 3 since Jul 2024–Jun 2025.
44	Ducommun Labarge Technologies, Inc. Top agencies Navy (Department of the Navy)	$153,200	<0.1%	Rank history: #48 in FY2021, not on the FY2022–FY2023 lists, #55 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
45	Seafloor Systems, Inc. Top agencies Commerce (Department of Commerce)	$148,125	<0.1%	Rank history: #49 in FY2021, #61 in FY2022, #61 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
46	Ideal Instrument Co, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$147,409	<0.1%	Rank history: #63 in FY2021, #51 in FY2022, #56 in FY2023, not on the FY2024 list and #55 in FY2025; up 12 since Jul 2024–Jun 2025.
47	Duncan-Parnell Inc. Top agencies Army (Department of the Army)	$141,467	<0.1%	Rank history: not on the FY2021–FY2024 lists and #46 in FY2025; new, not ranked in Jul 2024–Jun 2025.
48	Echo81 LLC Top agencies Navy (Department of the Navy)	$135,997	<0.1%	Rank history: not on the FY2021 list, #47 in FY2022, #87 in FY2023, not on the FY2024 list and #47 in FY2025; new, not ranked in Jul 2024–Jun 2025.
49	H C Merchandisers, Inc. Top agencies DLA (Defense Logistics Agency)	$134,372	<0.1%	Rank history: not on the FY2021–FY2024 lists and #42 in FY2025; down 6 since Jul 2024–Jun 2025.
50	D & D Automation Inc. Top agencies Navy (Department of the Navy)	$133,700	<0.1%	Rank history: not on the FY2021–FY2022 lists, #67 in FY2023, not on the FY2024 list and #48 in FY2025; new, not ranked in Jul 2024–Jun 2025.
51	Merck & Co. Inc. Through Biomark LLC Top agencies Army (Department of the Army)	$127,227	<0.1%	Rank history: not on the FY2021–FY2023 lists, #66 in FY2024 and #61 in FY2025; new, not ranked in Jul 2024–Jun 2025.
52	FBC Enterprises LLC Top agencies DLA (Defense Logistics Agency)	$123,750	<0.1%	Rank history: #42 in FY2021, not on the FY2022 list, #45 in FY2023, #25 in FY2024 and #49 in FY2025; new, not ranked in Jul 2024–Jun 2025.
53	Ocean Marine Industries, Inc. Top agencies DOI (Department of the Interior)	$119,330	<0.1%	Rank history: #92 in FY2021, #53 in FY2022, not on the FY2023 list, #41 in FY2024 and #50 in FY2025; down 16 since Jul 2024–Jun 2025.
54	Brownstown Quality Tool & Automation LLC Top agencies Navy (Department of the Navy)	$117,888	<0.1%	Rank history: not on the FY2021–FY2022 lists, #90 in FY2023, not on the FY2024 list and #51 in FY2025; new, not ranked in Jul 2024–Jun 2025.
55	Grava Hydrographic Solutions LLC Top agencies Commerce (Department of Commerce)	$112,250	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
56	Woods Hole Oceanographic Institution Top agencies Navy (Department of the Navy)	$99,150	<0.1%	Rank history: #82 in FY2021, #43 in FY2022, #73 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
57	Alek Industries Inc. Through Alektronics Inc. Top agencies DLA (Defense Logistics Agency)	$97,277	<0.1%	Rank history: not on the FY2021 list, #87 in FY2022, not on the FY2023 list, #78 in FY2024 and #52 in FY2025; up 4 since Jul 2024–Jun 2025.
58	Ameritech Die & Mold South, Inc. Top agencies DLA (Defense Logistics Agency)	$89,922	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
59	Russell' S Tube Forming Inc. Top agencies Navy (Department of the Navy)	$80,852	<0.1%	Rank history: #77 in FY2021, not on the FY2022 list, #60 in FY2023, not on the FY2024 list and #59 in FY2025; up 4 since Jul 2024–Jun 2025.
60	Instruments Incorporated Top agencies Navy (Department of the Navy)	$72,800	<0.1%	Rank history: not on the FY2021 list, #54 in FY2022, not on the FY2023 list, #49 in FY2024 and #58 in FY2025; down 12 since Jul 2024–Jun 2025.
61	Unique Technology Systems LLC Top agencies DHS (Department of Homeland Security)	$63,708	<0.1%	Rank history: not on the FY2021–FY2024 lists and #60 in FY2025; new, not ranked in Jul 2024–Jun 2025.
62	DC Precision LLC Top agencies DLA (Defense Logistics Agency)	$60,840	<0.1%	Rank history: #74 in FY2021, not on the FY2022–FY2023 lists, #60 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
63	Amphenol (Maryland) Inc. Top agencies Navy (Department of the Navy)	$56,848	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
64	Beringia Marine Inc. Top agencies Commerce (Department of Commerce)	$50,025	<0.1%	Rank history: not on the FY2021–FY2024 lists and #65 in FY2025; new, not ranked in Jul 2024–Jun 2025.
65	Innovasea Systems, Inc. Top agencies DOI (Department of the Interior)	$49,169	<0.1%	Rank history: not on the FY2021–FY2023 lists, #35 in FY2024 and #62 in FY2025; down 25 since Jul 2024–Jun 2025.
66	Spencer Industries Inc. Top agencies DLA (Defense Logistics Agency)	$48,026	<0.1%	Rank history: not on the FY2021 list, #88 in FY2022, #91 in FY2023, #95 in FY2024 and #63 in FY2025; up 11 since Jul 2024–Jun 2025.
67	Leonardo S.p.A. 2 awardees, including Laurel Technologies Partnership and Engineered Coil Company Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$46,709	<0.1%	Rank history: #24 in FY2021, #5 in FY2022, #13 in FY2023, #19 in FY2024 and #43 in FY2025; new, not ranked in Jul 2024–Jun 2025.
68	Purehm U.s. Inc. Top agencies Army (Department of the Army)	$42,898	<0.1%	Rank history: not on the FY2021–FY2023 lists, #73 in FY2024 and #69 in FY2025; up 4 since Jul 2024–Jun 2025.
69	Duramax Marine, LLC Top agencies Navy (Department of the Navy)	$40,316	<0.1%	Rank history: not on the FY2021–FY2024 lists and #70 in FY2025; new, not ranked in Jul 2024–Jun 2025.
70	Eos-Av International Corp Top agencies DHS (Department of Homeland Security)	$36,000	<0.1%	Rank history: not on the FY2021–FY2024 lists and #45 in FY2025; down 19 since Jul 2024–Jun 2025.
71	Telestra Technologies LLC Top agencies Navy (Department of the Navy)	$30,535	<0.1%	Rank history: not on the FY2021–FY2024 lists and #74 in FY2025; new, not ranked in Jul 2024–Jun 2025.
72	Biosonics, Inc. Top agencies Commerce (Department of Commerce)	$24,873	<0.1%	Rank history: not on the FY2021–FY2022 lists, #62 in FY2023, not on the FY2024 list and #78 in FY2025; new, not ranked in Jul 2024–Jun 2025.
73	S I T Corporation Top agencies DLA (Defense Logistics Agency)	$22,232	<0.1%	Rank history: not on the FY2021–FY2022 lists, #83 in FY2023, not on the FY2024 list and #85 in FY2025; new, not ranked in Jul 2024–Jun 2025.
74	Measurement Specialties Inc. Through Brantner and Associates, Inc. Top agencies DLA (Defense Logistics Agency)	$19,807	<0.1%	Rank history: not on the FY2021–FY2024 lists and #64 in FY2025; down 7 since Jul 2024–Jun 2025.
75	Innovasea Marine Systems Canada Inc. Top agencies Commerce (Department of Commerce)	$15,907	<0.1%	Rank history: #36 in FY2021, #29 in FY2022, #36 in FY2023, #36 in FY2024 and #32 in FY2025; down 43 since Jul 2024–Jun 2025.
76	Mercury Computer Systems Inc. Through Mercury Systems, Inc. Top agencies Navy (Department of the Navy)	$12,430	<0.1%	Rank history: #58 in FY2021, not on the FY2022–FY2023 lists, #76 in FY2024 and #40 in FY2025; down 34 since Jul 2024–Jun 2025.
77	Klein Marine Systems Inc Top agencies Navy (Department of the Navy)	$10,300	<0.1%	Rank history: not on the FY2021–FY2024 lists and #86 in FY2025; new, not ranked in Jul 2024–Jun 2025.
78	Gavial Itc, LLC Top agencies Navy (Department of the Navy)	$9,104	<0.1%	Rank history: not on the FY2021–FY2024 lists and #80 in FY2025; up 4 since Jul 2024–Jun 2025.
79	Hoosier Industrial Supply, Inc. Top agencies DLA (Defense Logistics Agency)	$9,076	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
80	Greene Metal Products, Inc. Top agencies DLA (Defense Logistics Agency)	$8,615	<0.1%	Rank history: not on the FY2021–FY2024 lists and #88 in FY2025; new, not ranked in Jul 2024–Jun 2025.
81	J.G.B. Enterprises Inc. Through Echelon Supply and Service, Inc. Top agencies DLA (Defense Logistics Agency)	$4,528	<0.1%	Rank history: not on the FY2021–FY2024 lists and #90 in FY2025; new, not ranked in Jul 2024–Jun 2025.
82	Donatini, Inc. Top agencies DLA (Defense Logistics Agency)	$3,920	<0.1%	Rank history: #41 in FY2021, #40 in FY2022, not on the FY2023–FY2024 lists and #77 in FY2025; down 3 since Jul 2024–Jun 2025.
83	Burhani Enterprises Inc. Top agencies DLA (Defense Logistics Agency)	$1,880	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
84	Industrial Experimental Technologies, LLC Top agencies DLA (Defense Logistics Agency)	$1,819	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
85	Basic Rubber and Plastics Co. Top agencies DLA (Defense Logistics Agency)	$1,784	<0.1%	Rank history: not on the FY2021–FY2022 lists, #94 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
86	MMC Metrology Lab, Inc. Top agencies DLA (Defense Logistics Agency)	$1,155	<0.1%	Rank history: not on the FY2021 list, #96 in FY2022, not on the FY2023–FY2024 lists and #98 in FY2025; new, not ranked in Jul 2024–Jun 2025.
87	Vertical Solutions Inc. Top agencies DLA (Defense Logistics Agency)	$295	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
88	Talon Air Top agencies DLA (Defense Logistics Agency)	$125	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.

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88 of 92 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 $958 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.
Period: the trailing 12 months end with the last month that ended at least 90 days ago, because the Department of Defense reports its contract actions to FPDS about 90 days late. The list is rebuilt each night.
Rank changes compare with Jul 2024–Jun 2025. "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.
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 5845 contractors in Jul 2025–Jun 2026?

1. Undersea Sensor Systems, Inc. ($378M), 2. RTX Corporation ($119M), 3. L3Harris Technologies, Inc. ($116M), 4. Huntington Ingalls Industries, Inc. ($85M), 5. Sedna Digital Solutions, LLC ($39.9M), 6. Northrop Grumman Corporation ($25.2M), 7. Leidos Holdings, Inc. ($21M), 8. THALES ($20.2M), 9. Delphinus Engineering LLC ($14.5M), 10. Geospace Technologies Corporation ($10.8M).

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