Top 100 Contractors in PSC 6695: Combination and Miscellaneous Instruments, FY2025

Name: Top 100 Contractors in PSC 6695: Combination and Miscellaneous Instruments, FY2025
Creator: GovTribe
License: https://creativecommons.org/licenses/by/4.0/

Parent companies by net contract obligations Oct 1, 2024 – Sep 30, 2025 Code page on GovTribe

The top 10 won 42% of FY2025 PSC 6695 contract dollars

Contract obligations: $124,453,917 Net of deobligations, by contracts coded PSC 6695
Contractors: 481 Parent companies with an obligation
Largest contractor: Sustainable System Solutions LLC $14.7 million, 11.5% of obligations
Data as of: Oct 23, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV · Free to reuse with credit to GovTribe (CC BY 4.0)

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Sustainable System Solutions LLC Top agencies Army (Department of the Army)	$14,661,352	11.5%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023 and #1 in FY2024; unchanged since FY2024.
2	OTT Hydromet Corp Top agencies DOI (Department of the Interior)	$7,464,548	5.9%	Rank history: not on the FY2021–FY2024 lists; new.
3	Safety Technology Holdings Inc. Through Humanetics Innovative Solutions, Inc. Top agencies DOT (Department of Transportation) Army (Department of the Army)	$5,858,687	4.6%	Rank history: not on the FY2021–FY2023 lists and #4 in FY2024; up 1 since FY2024.
4	YSI Inc. Top agencies DOI (Department of the Interior) Commerce (Department of Commerce)	$4,914,863	3.9%	Rank history: not on the FY2021 list, #50 in FY2022, not on the FY2023 list and #16 in FY2024; up 12 since FY2024.
5	Mountain Horse LLC Top agencies DFAS (Defense Finance and Accounting Service) Army (Department of the Army)	$4,388,808	3.4%	Rank history: not on the FY2021–FY2023 lists and #2 in FY2024; down 3 since FY2024.
6	W S Darley & Co Top agencies DFAS (Defense Finance and Accounting Service)	$4,172,916	3.3%	Rank history: not on the FY2021–FY2024 lists; new.
7	Parker-Hannifin Corporation 2 awardees, including Meggitt (Orange County), Inc. Top agencies DLA (Defense Logistics Agency)	$3,789,788	3.0%	Rank history: not on the FY2021–FY2023 lists and #14 in FY2024; up 7 since FY2024.
8	Honeywell International Inc. 3 awardees Top agencies DLA (Defense Logistics Agency)	$3,534,070	2.8%	Rank history: #79 in FY2021, #8 in FY2022, not on the FY2023 list and #57 in FY2024; up 49 since FY2024.
9	University of Alaska Systems Through University of Alaska Fairbanks Top agencies NASA (National Aeronautics and Space Administration)	$2,598,224	2.0%	Rank history: #6 in FY2021, #16 in FY2022, #9 in FY2023 and #9 in FY2024; unchanged since FY2024.
10	Kulite Semiconductor Products Inc. Top agencies DLA (Defense Logistics Agency) NASA (National Aeronautics and Space Administration)	$2,579,180	2.0%	Rank history: #9 in FY2021, #11 in FY2022, #15 in FY2023 and #10 in FY2024; unchanged since FY2024.
11	Emerson Electric Co Through Rosemount Specialty Products LLC Top agencies DLA (Defense Logistics Agency)	$2,477,415	1.9%	Rank history: not on the FY2021 list, #19 in FY2022 and not on the FY2023–FY2024 lists; returned.
12	Teledyne Flir Unmanned Ground Systems Inc 6 awardees, including Teledyne Instruments, Inc., Teledyne Brown Engineering, Inc. and Teledyne Flir Commercial Systems Inc. Top agencies DOI (Department of the Interior) USAF (Department of the Air Force) Army (Department of the Army)	$2,235,636	1.8%	Rank history: #7 in FY2021, #9 in FY2022, #5 in FY2023 and #27 in FY2024; up 15 since FY2024.
13	General Dynamics Corporation Through Electric Boat Corporation Top agencies Navy (Department of the Navy)	$2,176,052	1.7%	Rank history: #61 in FY2021, not on the FY2022 list, #14 in FY2023 and #32 in FY2024; up 19 since FY2024.
14	RTX Corporation 3 awardees, including Simmonds Precision Products Inc., Hamilton Sundstrand Corporation and Raytheon Company Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$2,149,031	1.7%	Rank history: #34 in FY2021, #6 in FY2022, #33 in FY2023 and #3 in FY2024; down 11 since FY2024.
15	Atlantic Diving Supply, Inc. Top agencies DFAS (Defense Finance and Accounting Service) Army (Department of the Army) DLA (Defense Logistics Agency)	$2,125,622	1.7%	Rank history: not on the FY2021–FY2023 lists and #7 in FY2024; down 8 since FY2024.
16	Kitco LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$2,103,474	1.7%	Rank history: not on the FY2021–FY2024 lists; up 277 since FY2024.
17	Transaero, Inc. Top agencies DLA (Defense Logistics Agency)	$2,083,288	1.6%	Rank history: #13 in FY2021, #13 in FY2022, #23 in FY2023 and #21 in FY2024; up 4 since FY2024.
18	Ruta Supplies Inc. Top agencies DLA (Defense Logistics Agency)	$1,970,397	1.5%	Rank history: #49 in FY2021, #36 in FY2022, #6 in FY2023 and #40 in FY2024; up 22 since FY2024.
19	Rockwell Automation, Inc. Through Sensia LLC Top agencies Navy (Department of the Navy)	$1,791,085	1.4%	Rank history: not on the FY2021–FY2024 lists; new.
20	Danaher Corporation 2 awardees, including Hach Company and Beckman Coulter, Inc. Top agencies DOI (Department of the Interior) NASA (National Aeronautics and Space Administration)	$1,790,807	1.4%	Rank history: #2 in FY2021, #3 in FY2022, #2 in FY2023 and #6 in FY2024; down 14 since FY2024.
21	Compuflow Solutions LLC Top agencies USAF (Department of the Air Force)	$1,765,645	1.4%	Rank history: not on the FY2021–FY2024 lists; new.
22	Eaton Corporation Public Limited Company Through Eaton Aerospace LLC Top agencies DLA (Defense Logistics Agency)	$1,443,941	1.1%	Rank history: #8 in FY2021, not on the FY2022 list, #25 in FY2023 and #20 in FY2024; down 2 since FY2024.
23	In-Situ, Inc. Top agencies DOI (Department of the Interior)	$1,251,481	1.0%	Rank history: #16 in FY2021, #24 in FY2022, #7 in FY2023 and #30 in FY2024; up 7 since FY2024.
24	Tactair Fluid Controls Inc 2 awardees, including Mason Electric Co. Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$1,139,011	0.9%	Rank history: not on the FY2021–FY2023 lists and #23 in FY2024; down 1 since FY2024.
25	Concepts Nrec, LLC Top agencies Army (Department of the Army)	$1,100,000	0.9%	Rank history: not on the FY2021–FY2022 lists, #13 in FY2023 and #15 in FY2024; down 10 since FY2024.
26	Southwest Research Institute Top agencies DLA (Defense Logistics Agency)	$1,096,430	0.9%	Rank history: not on the FY2021–FY2024 lists; new.
27	Campbell Scientific Inc. Top agencies DOI (Department of the Interior) Army (Department of the Army) USAF (Department of the Air Force)	$1,007,780	0.8%	Rank history: #25 in FY2021, #41 in FY2022, #20 in FY2023 and #33 in FY2024; up 6 since FY2024.
28	AAR Corp. Through AAR Supply Chain, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,000,482	0.8%	Rank history: not on the FY2021–FY2023 lists and #74 in FY2024; up 46 since FY2024.
29	Mason Electric Co. 3 awardees, including King Nutronics Corporation and Testvonics Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$978,268	0.8%	Rank history: not on the FY2021–FY2024 lists; new.
30	Roche Holdings Inc. Through Roche Diagnostics Corporation Top agencies Navy (Department of the Navy) VA (Department of Veterans Affairs)	$946,169	0.7%	Rank history: not on the FY2021–FY2024 lists; new.
31	Integrated Procurement Technologies Top agencies DLA (Defense Logistics Agency)	$945,197	0.7%	Rank history: not on the FY2021 list, #73 in FY2022 and not on the FY2023–FY2024 lists; returned.
32	GMS International Corporation Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$942,958	0.7%	Rank history: not on the FY2021–FY2022 lists, #48 in FY2023 and #35 in FY2024; up 3 since FY2024.
33	Thales Defense & Security Inc. Top agencies Navy (Department of the Navy)	$941,956	0.7%	Rank history: not on the FY2021–FY2022 lists, #26 in FY2023 and not on the FY2024 list; returned.
34	San Antonio Lighthouse for the Blind Top agencies DLA (Defense Logistics Agency)	$917,230	0.7%	Rank history: #47 in FY2021, #44 in FY2022, #61 in FY2023 and #86 in FY2024; up 52 since FY2024.
35	Velico Medical, Inc. Top agencies DHA (Defense Health Agency)	$909,134	0.7%	Rank history: not on the FY2021–FY2024 lists; new.
36	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$904,355	0.7%	Rank history: #93 in FY2021, not on the FY2022 list, #54 in FY2023 and #34 in FY2024; down 2 since FY2024.
37	Quantum Opus LLC Top agencies USAF (Department of the Air Force)	$796,000	0.6%	Rank history: not on the FY2021–FY2024 lists; new.
38	Agilent Technologies, Inc. Top agencies DOS (Department of State)	$659,990	0.5%	Rank history: not on the FY2021–FY2024 lists; up 311 since FY2024.
39	ECI Defense Group, Inc. 2 awardees Top agencies DLA (Defense Logistics Agency)	$640,434	0.5%	Rank history: #24 in FY2021, #53 in FY2022, #64 in FY2023 and #88 in FY2024; up 49 since FY2024.
40	Feole Technologies Inc. Top agencies Navy (Department of the Navy)	$624,072	0.5%	Rank history: not on the FY2021–FY2023 lists and #97 in FY2024; up 57 since FY2024.
41	Rural Route 2, LLC Top agencies DLA (Defense Logistics Agency)	$578,009	0.5%	Rank history: not on the FY2021–FY2023 lists and #47 in FY2024; up 6 since FY2024.
42	Melton Sales & Service Top agencies DLA (Defense Logistics Agency)	$555,587	0.4%	Rank history: not on the FY2021–FY2022 lists, #74 in FY2023 and #53 in FY2024; up 11 since FY2024.
43	Moog Inc. 2 awardees, including Moog Military Aircraft LLC Top agencies Navy (Department of the Navy)	$547,584	0.4%	Rank history: #15 in FY2021, #26 in FY2022, #41 in FY2023 and not on the FY2024 list; up 68 since FY2024.
44	L3Harris Technologies, Inc. 5 awardees, including Fisica Applied Technologies, Inc., L3Harris Maritime Services Inc. and L3 Technologies, Inc. Top agencies Army (Department of the Army) Navy (Department of the Navy)	$540,595	0.4%	Rank history: #63 in FY2021, #37 in FY2022, not on the FY2023 list and #29 in FY2024; down 15 since FY2024.
45	IEC Infrared Systems LLC Top agencies USAF (Department of the Air Force)	$519,911	0.4%	Rank history: not on the FY2021–FY2023 lists and #50 in FY2024; up 5 since FY2024.
46	FDH Electronics, LLC 2 awardees, including Peerless Electronics Inc. and Electro Enterprises Inc. Top agencies DLA (Defense Logistics Agency)	$457,354	0.4%	Rank history: not on the FY2021–FY2024 lists; new.
47	Bahfed Corp Top agencies Army (Department of the Army)	$445,552	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
48	Ontic Engineering and Manufacturing Inc. 3 awardees, including Ontic Engineering & Manufacturing UK Limited Top agencies DLA (Defense Logistics Agency)	$424,503	0.3%	Rank history: not on the FY2021–FY2024 lists; up 405 since FY2024.
49	Standard Calibrations Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$418,593	0.3%	Rank history: not on the FY2021–FY2023 lists and #61 in FY2024; up 12 since FY2024.
50	Sun Display Systems LLC Top agencies DLA (Defense Logistics Agency)	$407,165	0.3%	Rank history: #36 in FY2021, #45 in FY2022, #59 in FY2023 and #68 in FY2024; up 18 since FY2024.
51	BAE Systems 2 awardees, including BAE Systems Information & Electronic Systems Integration Inc. Top agencies Navy (Department of the Navy)	$404,084	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
52	Dewesoft D.O.O. Through Dewesoft LLC Top agencies Army (Department of the Army)	$400,930	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
53	Tinius Olsen Testing Machine Co Inc Top agencies Army (Department of the Army)	$382,506	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
54	S I T Corporation Top agencies DLA (Defense Logistics Agency)	$347,100	0.3%	Rank history: #44 in FY2021, #48 in FY2022, not on the FY2023 list and #54 in FY2024; unchanged since FY2024.
55	Apothem, Inc. Top agencies Navy (Department of the Navy)	$341,945	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
56	FTS Forest Technology Systems Ltd. Top agencies DOI (Department of the Interior)	$339,850	0.3%	Rank history: #12 in FY2021, #99 in FY2022 and not on the FY2023–FY2024 lists; returned.
57	Columbia Research Laboratories, Inc. Top agencies DLA (Defense Logistics Agency)	$334,877	0.3%	Rank history: not on the FY2021–FY2022 lists, #40 in FY2023 and #64 in FY2024; up 7 since FY2024.
58	Proponent, Inc. Through H C Merchandisers, Inc. Top agencies DLA (Defense Logistics Agency)	$329,992	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
59	Rev-Cap Company, Inc. Top agencies DLA (Defense Logistics Agency)	$325,840	0.3%	Rank history: not on the FY2021 list, #60 in FY2022 and not on the FY2023–FY2024 lists; up 359 since FY2024.
60	Additive Manufacturing & Engineering, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$314,640	0.2%	Rank history: not on the FY2021–FY2024 lists; up 226 since FY2024.
61	Turbine Technics Inc. Top agencies DLA (Defense Logistics Agency)	$307,200	0.2%	Rank history: #71 in FY2021, #66 in FY2022, #49 in FY2023 and #73 in FY2024; up 12 since FY2024.
62	Stealth Supply, Inc. Top agencies DLA (Defense Logistics Agency)	$301,550	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
63	Hydro-Aire Aerospace Corp Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$297,782	0.2%	Rank history: not on the FY2021–FY2024 lists; up 145 since FY2024.
64	Ideal Vacuum Products, LLC Top agencies NASA (National Aeronautics and Space Administration)	$292,280	0.2%	Rank history: not on the FY2021–FY2024 lists; up 247 since FY2024.
65	Oxford Instruments America, Inc. Top agencies NASA (National Aeronautics and Space Administration)	$283,918	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
66	Ametek Inc. 4 awardees, including Faro Technologies Inc., Nsi-Mi Technologies Inc. and Sunpower, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) NASA (National Aeronautics and Space Administration)	$272,336	0.2%	Rank history: not on the FY2021 list, #29 in FY2022, #72 in FY2023 and #100 in FY2024; up 34 since FY2024.
67	Allied Defense Industries, LLC Top agencies DLA (Defense Logistics Agency)	$259,221	0.2%	Rank history: not on the FY2021–FY2023 lists and #82 in FY2024; up 15 since FY2024.
68	Kimball Physics Inc. Top agencies NASA (National Aeronautics and Space Administration)	$255,475	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
69	Johnson Controls Federal Systems, LLC Through Johnson Controls Navy Systems, LLC Top agencies DLA (Defense Logistics Agency)	$254,470	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
70	KLA Corporation Top agencies Navy (Department of the Navy)	$248,751	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
71	The Boeing Company 3 awardees Top agencies DLA (Defense Logistics Agency)	$248,606	0.2%	Rank history: not on the FY2021 list, #33 in FY2022, #35 in FY2023 and not on the FY2024 list; up 422 since FY2024.
72	TNL Sales LLC Top agencies DLA (Defense Logistics Agency)	$242,905	0.2%	Rank history: not on the FY2021 list, #72 in FY2022 and not on the FY2023–FY2024 lists; up 121 since FY2024.
73	Vishay Precision Group, Inc. Through Diversified Technical Systems, Inc. Top agencies DOT (Department of Transportation) NASA (National Aeronautics and Space Administration)	$238,155	0.2%	Rank history: not on the FY2021 list, #23 in FY2022, #16 in FY2023 and not on the FY2024 list; returned.
74	Aviarms Support Corp Top agencies DLA (Defense Logistics Agency)	$234,938	0.2%	Rank history: not on the FY2021–FY2024 lists; up 412 since FY2024.
75	Airbus US Space & Defense Inc. Top agencies DHS (Department of Homeland Security)	$233,798	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
76	Admartec, Inc. Top agencies Navy (Department of the Navy)	$225,350	0.2%	Rank history: #56 in FY2021, not on the FY2022 list, #73 in FY2023 and not on the FY2024 list; up 371 since FY2024.
77	Kisters North America, Inc. Top agencies DOI (Department of the Interior)	$221,290	0.2%	Rank history: not on the FY2021–FY2023 lists and #17 in FY2024; down 60 since FY2024.
78	Aircraft Instruments Co Top agencies DLA (Defense Logistics Agency)	$220,835	0.2%	Rank history: not on the FY2021–FY2024 lists; up 72 since FY2024.
79	Atec Inc. Top agencies DLA (Defense Logistics Agency)	$219,256	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
80	Advanced Computer Concepts, Inc. Top agencies Navy (Department of the Navy)	$218,746	0.2%	Rank history: not on the FY2021–FY2024 lists; up 240 since FY2024.
81	Illinois Tool Works Inc. 3 awardees, including MTS Systems Corporation and PCB Piezotronics of North Carolina, Inc. Top agencies NASA (National Aeronautics and Space Administration) USAF (Department of the Air Force)	$216,474	0.2%	Rank history: not on the FY2021–FY2023 lists and #60 in FY2024; down 21 since FY2024.
82	Sargent Aerospace & Defense, LLC Top agencies DLA (Defense Logistics Agency)	$212,262	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
83	Arctic Slope Regional Corporation Through Asrc Federal Facilities Logistics, LLC Top agencies DLA (Defense Logistics Agency)	$205,089	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
84	Vanderlande Industries Inc. Through Uster Technologies, Inc. Top agencies USDA (Department of Agriculture)	$201,880	0.2%	Rank history: not on the FY2021–FY2023 lists and #91 in FY2024; up 7 since FY2024.
85	Treadwell Corporation (Delaware) Top agencies DLA (Defense Logistics Agency)	$201,053	0.2%	Rank history: #59 in FY2021, #71 in FY2022, #87 in FY2023 and #94 in FY2024; up 9 since FY2024.
86	RPM Innovations Inc Top agencies NASA (National Aeronautics and Space Administration)	$199,905	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
87	Jag Components, LLC Top agencies DLA (Defense Logistics Agency)	$188,846	0.1%	Rank history: not on the FY2021 list, #91 in FY2022, not on the FY2023 list and #67 in FY2024; down 20 since FY2024.
88	Navigation Electronics, Inc. Top agencies Army (Department of the Army)	$188,188	0.1%	Rank history: not on the FY2021–FY2022 lists, #45 in FY2023 and not on the FY2024 list; returned.
89	MKS Instruments Inc. Through Newport Corp Top agencies NASA (National Aeronautics and Space Administration)	$185,379	0.1%	Rank history: not on the FY2021–FY2024 lists; up 64 since FY2024.
90	GMS Industrial Supply, Inc. Through Sanitz Enterprises, Inc. Top agencies DLA (Defense Logistics Agency)	$184,831	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
91	Technical Communities, Inc. Top agencies NASA (National Aeronautics and Space Administration) Navy (Department of the Navy)	$182,875	0.1%	Rank history: #37 in FY2021, not on the FY2022–FY2023 lists and #99 in FY2024; up 8 since FY2024.
92	Euroamerica LLC Top agencies DOT (Department of Transportation)	$182,251	0.1%	Rank history: #22 in FY2021 and not on the FY2022–FY2024 lists; up 86 since FY2024.
93	Dynamic Systems and Research Corporation Top agencies Army (Department of the Army)	$182,093	0.1%	Rank history: not on the FY2021–FY2023 lists and #43 in FY2024; down 50 since FY2024.
94	Sihalla Zakaria Top agencies DOI (Department of the Interior)	$181,024	0.1%	Rank history: not on the FY2021–FY2024 lists; up 12 since FY2024.
95	General Electric Company 2 awardees, including Druck, LLC Top agencies Navy (Department of the Navy) NASA (National Aeronautics and Space Administration)	$173,403	0.1%	Rank history: not on the FY2021 list, #15 in FY2022, #44 in FY2023 and #76 in FY2024; down 19 since FY2024.
96	Callisto France Top agencies NASA (National Aeronautics and Space Administration)	$159,188	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
97	Curtiss-Wright Corporation 2 awardees, including Peerless Instrument Co., Inc. and Curtiss-Wright Flow Control Service, LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$153,602	0.1%	Rank history: not on the FY2021 list, #77 in FY2022 and not on the FY2023–FY2024 lists; returned.
98	Federal Resources Supply Company, LLC Top agencies DHS (Department of Homeland Security)	$151,730	0.1%	Rank history: not on the FY2021–FY2024 lists; up 132 since FY2024.
99	Garrett Electronics, Inc. Top agencies DLA (Defense Logistics Agency)	$144,813	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
100	Germann Instruments, Inc. Top agencies Army (Department of the Army)	$143,360	0.1%	Rank history: not on the FY2021–FY2024 lists; new.

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100 of 481 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 $127 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. An awardee whose own actions mostly name no parent, and that no other company's actions name as their parent, rolls up its SAM.gov registration's chain of parent companies: it counts under the first company there that other companies' actions name as their parent, or under the parent most of a company's own actions name, whichever comes first; with neither, under the highest company in the chain with federal contracts of its own. Joint ventures stay companies of their own. 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 2025 ran Oct 1, 2024 – Sep 30, 2025. 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 FY2024. "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 FY2024 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 6695 contractors in FY2025?

1. Sustainable System Solutions LLC ($14.7M), 2. OTT Hydromet Corp ($7.46M), 3. Safety Technology Holdings Inc. ($5.86M), 4. YSI Inc. ($4.91M), 5. Mountain Horse LLC ($4.39M), 6. W S Darley & Co ($4.17M), 7. Parker-Hannifin Corporation ($3.79M), 8. Honeywell International Inc. ($3.53M), 9. University of Alaska Systems ($2.6M), 10. Kulite Semiconductor Products Inc. ($2.58M).

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