Top 100 Contractors in PSC 6650: Optical Instruments, Test Equipment, Components and Accessories, Jul 2025–Jun 2026

Name: Top 100 Contractors in PSC 6650: Optical Instruments, Test Equipment, Components and Accessories, 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 65% of PSC 6650 contract dollars from July 2025 through June 2026

Contract obligations: $150,503,468 Net of deobligations, by contracts coded PSC 6650
Contractors: 309 Parent companies with an obligation
Largest contractor: Planewave Instruments Inc. $22.2 million, 14.1% 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	Planewave Instruments Inc. Top agencies OSD (Office of the Secretary of Defense)	$22,150,000	14.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
2	RTX Corporation 6 awardees, including Rockwell Collins, Inc., Hamilton Sundstrand Corporation and Raytheon Company Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$21,888,895	13.9%	Rank history: #5 in FY2021, #17 in FY2022, #11 in FY2023, #8 in FY2024 and #1 in FY2025; up 12 since Jul 2024–Jun 2025.
3	STS International, Incorporated Top agencies Navy (Department of the Navy)	$18,659,476	11.9%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
4	Seiler Instrument and Manufacturing Company, Incorporated Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$10,757,965	6.8%	Rank history: not on the FY2021 list, #45 in FY2022, #100 in FY2023, #23 in FY2024 and #19 in FY2025; up 17 since Jul 2024–Jun 2025.
5	Hawkins Glass Wholesalers, L.l.c Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$5,638,105	3.6%	Rank history: not on the FY2021–FY2024 lists and #7 in FY2025; up 62 since Jul 2024–Jun 2025.
6	Elbit Systems of America - Night Vision LLC Top agencies Army (Department of the Army)	$5,123,698	3.3%	Rank history: not on the FY2021–FY2025 lists; up 127 since Jul 2024–Jun 2025.
7	Olympus America Inc Top agencies USAF (Department of the Air Force)	$4,945,179	3.1%	Rank history: #16 in FY2021, #14 in FY2022, not on the FY2023 list, #3 in FY2024 and #3 in FY2025; down 3 since Jul 2024–Jun 2025.
8	Gastops Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$4,750,670	3.0%	Rank history: #6 in FY2021, #13 in FY2022, #24 in FY2023, #14 in FY2024 and #8 in FY2025; up 4 since Jul 2024–Jun 2025.
9	Ametek Inc. 3 awardees, including Spectro Scientific, Inc. and Taylor Hobson Inc. Top agencies USAF (Department of the Air Force)	$4,093,239	2.6%	Rank history: #2 in FY2021, #3 in FY2022, #18 in FY2023, #19 in FY2024 and #5 in FY2025; down 1 since Jul 2024–Jun 2025.
10	Berkshire Hathaway Inc. Through Kitco Fiber Optics Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$3,714,265	2.4%	Rank history: not on the FY2021–FY2023 lists, #75 in FY2024 and #4 in FY2025; down 5 since Jul 2024–Jun 2025.
11	Leica Geosystems Inc. 2 awardees, including Hexagon Manufacturing Intelligence, LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$3,590,893	2.3%	Rank history: not on the FY2021–FY2024 lists and #41 in FY2025; new, not ranked in Jul 2024–Jun 2025.
12	Nikon Americas Inc. Through Nikon Instruments Inc. Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy) VA (Department of Veterans Affairs)	$2,386,052	1.5%	Rank history: not on the FY2021–FY2022 lists, #25 in FY2023, #51 in FY2024 and #13 in FY2025; up 40 since Jul 2024–Jun 2025.
13	Optex Systems, Inc. Top agencies DLA (Defense Logistics Agency)	$2,122,254	1.4%	Rank history: #8 in FY2021, #6 in FY2022, #16 in FY2023, #6 in FY2024 and #11 in FY2025; new, not ranked in Jul 2024–Jun 2025.
14	Rolls-Royce Solutions America Inc. Through Rolls-Royce Corporation Top agencies USAF (Department of the Air Force)	$2,109,900	1.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
15	Carl Zeiss Microscopy, LLC Top agencies USAF (Department of the Air Force) VA (Department of Veterans Affairs)	$2,043,761	1.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
16	Atap Inc. Top agencies Navy (Department of the Navy)	$2,014,788	1.3%	Rank history: not on the FY2021 list, #4 in FY2022, #15 in FY2023, #10 in FY2024 and #9 in FY2025; down 7 since Jul 2024–Jun 2025.
17	Waygate Technologies USA LP Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$1,827,027	1.2%	Rank history: #7 in FY2021, #2 in FY2022, #17 in FY2023, #7 in FY2024 and not on the FY2025 list; down 2 since Jul 2024–Jun 2025.
18	Santa Barbara Infrared, Inc. Top agencies USAF (Department of the Air Force)	$1,717,188	1.1%	Rank history: not on the FY2021–FY2023 lists, #47 in FY2024 and not on the FY2025 list; up 32 since Jul 2024–Jun 2025.
19	Optical Sciences, LLC Top agencies USAF (Department of the Air Force)	$1,540,000	1.0%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
20	Centrak Inc. Through Labsphere, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$1,101,296	0.7%	Rank history: not on the FY2021–FY2024 lists and #100 in FY2025; new, not ranked in Jul 2024–Jun 2025.
21	Atlantic Diving Supply, Inc. Top agencies DOJ (Department of Justice) DLA (Defense Logistics Agency)	$1,100,144	0.7%	Rank history: not on the FY2021–FY2024 lists and #17 in FY2025; up 110 since Jul 2024–Jun 2025.
22	Advanced Computer Concepts, Inc. Top agencies Navy (Department of the Navy) WHS (DOD Washington Headquarters Service)	$892,884	0.6%	Rank history: not on the FY2021 list, #87 in FY2022, not on the FY2023–FY2024 lists and #21 in FY2025; up 146 since Jul 2024–Jun 2025.
23	Ccon Inc. Top agencies Navy (Department of the Navy)	$886,250	0.6%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
24	Carson Industries, Inc. 2 awardees Top agencies DLA (Defense Logistics Agency)	$768,642	0.5%	Rank history: #39 in FY2021, #22 in FY2022, #52 in FY2023, #22 in FY2024 and #28 in FY2025; unchanged since Jul 2024–Jun 2025.
25	The Boeing Company Top agencies Army (Department of the Army)	$726,515	0.5%	Rank history: not on the FY2021–FY2022 lists, #43 in FY2023, not on the FY2024 list and #27 in FY2025; new, not ranked in Jul 2024–Jun 2025.
26	Yokogawa Corporation of America Top agencies HHS (Department of Health and Human Services)	$643,305	0.4%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
27	Tevet LLC Top agencies Navy (Department of the Navy) DOI (Department of the Interior) USAF (Department of the Air Force)	$642,665	0.4%	Rank history: not on the FY2021–FY2023 lists, #92 in FY2024 and #23 in FY2025; up 134 since Jul 2024–Jun 2025.
28	Photothermal Spectroscopy Corp. Top agencies HHS (Department of Health and Human Services)	$637,260	0.4%	Rank history: not on the FY2021–FY2024 lists and #24 in FY2025; new, not ranked in Jul 2024–Jun 2025.
29	Teledyne Flir Defense, Inc. Top agencies Army (Department of the Army)	$620,591	0.4%	Rank history: not on the FY2021–FY2023 lists, #28 in FY2024 and not on the FY2025 list; up 1 since Jul 2024–Jun 2025.
30	Ion Optics Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$587,310	0.4%	Rank history: not on the FY2021–FY2024 lists and #46 in FY2025; up 107 since Jul 2024–Jun 2025.
31	Elbit Systems of America LLC Through Elbitamerica, Inc. Top agencies DLA (Defense Logistics Agency)	$576,517	0.4%	Rank history: not on the FY2021–FY2023 lists, #72 in FY2024 and #29 in FY2025; up 38 since Jul 2024–Jun 2025.
32	Bertin Alpao Top agencies USAF (Department of the Air Force)	$560,591	0.4%	Rank history: not on the FY2021–FY2024 lists and #31 in FY2025; new, not ranked in Jul 2024–Jun 2025.
33	Government of the United States Through Federal Prison Industries, Inc. Top agencies DOJ (Department of Justice)	$543,358	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
34	Avro Inc. Top agencies USAF (Department of the Air Force)	$497,526	0.3%	Rank history: not on the FY2021–FY2023 lists, #70 in FY2024 and #35 in FY2025; new, not ranked in Jul 2024–Jun 2025.
35	Atlas Instrument Co Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$491,350	0.3%	Rank history: not on the FY2021–FY2023 lists, #93 in FY2024 and #44 in FY2025; up 33 since Jul 2024–Jun 2025.
36	Toptica Photonics Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$488,888	0.3%	Rank history: not on the FY2021–FY2023 lists, #25 in FY2024 and #36 in FY2025; up 1 since Jul 2024–Jun 2025.
37	Wabtec Inspection Technologies, Inc. Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$480,941	0.3%	Rank history: not on the FY2021–FY2022 lists, #94 in FY2023, not on the FY2024 list and #20 in FY2025; up 12 since Jul 2024–Jun 2025.
38	Oshkosh Corporation Through Oshkosh Defense LLC Top agencies DLA (Defense Logistics Agency)	$478,530	0.3%	Rank history: not on the FY2021–FY2023 lists, #54 in FY2024 and #80 in FY2025; up 91 since Jul 2024–Jun 2025.
39	Am General LLC Top agencies DLA (Defense Logistics Agency)	$451,105	0.3%	Rank history: not on the FY2021–FY2024 lists and #43 in FY2025; up 74 since Jul 2024–Jun 2025.
40	Kurt J Lesker Co Top agencies USAF (Department of the Air Force)	$392,030	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
41	Keyence Corporation of America Top agencies USAF (Department of the Air Force) Treasury (Department of the Treasury)	$391,465	0.2%	Rank history: not on the FY2021–FY2023 lists, #33 in FY2024 and #56 in FY2025; up 5 since Jul 2024–Jun 2025.
42	Hitachi High-Tech America, Inc. Top agencies Navy (Department of the Navy)	$359,616	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
43	Government Scientific Source Inc. Top agencies Navy (Department of the Navy) DOJ (Department of Justice) USDA (Department of Agriculture)	$342,881	0.2%	Rank history: #23 in FY2021, #24 in FY2022, #65 in FY2023, #20 in FY2024 and not on the FY2025 list; down 23 since Jul 2024–Jun 2025.
44	Quality Vision International Inc. Top agencies Navy (Department of the Navy)	$337,020	0.2%	Rank history: not on the FY2021–FY2023 lists, #61 in FY2024 and #32 in FY2025; down 15 since Jul 2024–Jun 2025.
45	Laser Techniques Company, LLC Top agencies Army (Department of the Army)	$327,988	0.2%	Rank history: not on the FY2021–FY2023 lists, #82 in FY2024 and #33 in FY2025; down 5 since Jul 2024–Jun 2025.
46	Lockheed Martin Corporation Top agencies Commerce (Department of Commerce)	$325,000	0.2%	Rank history: #3 in FY2021, not on the FY2022 list, #30 in FY2023, #1 in FY2024 and #57 in FY2025; down 45 since Jul 2024–Jun 2025.
47	Valipharm Inc. Top agencies DLA (Defense Logistics Agency)	$304,282	0.2%	Rank history: not on the FY2021–FY2024 lists and #22 in FY2025; up 1 since Jul 2024–Jun 2025.
48	Rosco Precision Machinery, LLC Top agencies Navy (Department of the Navy)	$286,860	0.2%	Rank history: not on the FY2021–FY2024 lists and #94 in FY2025; new, not ranked in Jul 2024–Jun 2025.
49	Adam N Eve Safety LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$285,904	0.2%	Rank history: not on the FY2021–FY2024 lists and #51 in FY2025; new, not ranked in Jul 2024–Jun 2025.
50	Jeol Usa, Inc. Top agencies DOI (Department of the Interior) USAF (Department of the Air Force) NASA (National Aeronautics and Space Administration)	$273,598	0.2%	Rank history: not on the FY2021–FY2023 lists, #48 in FY2024 and #52 in FY2025; down 3 since Jul 2024–Jun 2025.
51	Federal Resources Supply Company, LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DHA (Defense Health Agency)	$265,816	0.2%	Rank history: not on the FY2021–FY2024 lists and #45 in FY2025; up 98 since Jul 2024–Jun 2025.
52	Checkpoint Technologies LLC Top agencies USAF (Department of the Air Force)	$262,125	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
53	AAR Government Services Inc. Through AAR Supply Chain, Inc. Top agencies DLA (Defense Logistics Agency)	$257,064	0.2%	Rank history: not on the FY2021–FY2024 lists and #40 in FY2025; up 34 since Jul 2024–Jun 2025.
54	Danaher Corporation 3 awardees, including Leica Microsystems Inc. and Hach Company Top agencies DOJ (Department of Justice) DOE (Department of Energy) Navy (Department of the Navy)	$256,572	0.2%	Rank history: #22 in FY2021, #16 in FY2022, #21 in FY2023, #16 in FY2024 and #37 in FY2025; down 28 since Jul 2024–Jun 2025.
55	AIT Products LLC Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$255,975	0.2%	Rank history: not on the FY2021–FY2024 lists and #77 in FY2025; up 61 since Jul 2024–Jun 2025.
56	Samyak Solutions, Inc. Top agencies Navy (Department of the Navy)	$245,155	0.2%	Rank history: not on the FY2021–FY2025 lists; up 78 since Jul 2024–Jun 2025.
57	BNC Corp. Top agencies Navy (Department of the Navy)	$240,200	0.2%	Rank history: not on the FY2021 list, #40 in FY2022, #20 in FY2023, #35 in FY2024 and #64 in FY2025; up 15 since Jul 2024–Jun 2025.
58	Adorama Inc. Top agencies Army (Department of the Army)	$238,942	0.2%	Rank history: not on the FY2021–FY2024 lists and #60 in FY2025; up 168 since Jul 2024–Jun 2025.
59	Leonardo S.p.A. Through DRS Network & Imaging Systems LLC Top agencies DLA (Defense Logistics Agency)	$232,827	0.1%	Rank history: #52 in FY2021, #33 in FY2022, #56 in FY2023, #46 in FY2024 and #50 in FY2025; down 2 since Jul 2024–Jun 2025.
60	Tescan USA Inc. Top agencies Treasury (Department of the Treasury)	$224,031	0.1%	Rank history: not on the FY2021–FY2023 lists, #39 in FY2024 and #61 in FY2025; down 24 since Jul 2024–Jun 2025.
61	Thorlabs Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$223,009	0.1%	Rank history: not on the FY2021–FY2022 lists, #51 in FY2023, not on the FY2024 list and #39 in FY2025; up 12 since Jul 2024–Jun 2025.
62	Ward / Davis Associates, Inc. Top agencies Navy (Department of the Navy)	$221,438	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
63	Giga, Inc. Top agencies Army (Department of the Army)	$215,352	0.1%	Rank history: not on the FY2021–FY2024 lists and #63 in FY2025; new, not ranked in Jul 2024–Jun 2025.
64	Polymedco Cancer Diagnostic Products LLC Top agencies DHA (Defense Health Agency)	$214,920	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
65	Technical Communities, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$212,900	0.1%	Rank history: #53 in FY2021, #47 in FY2022, not on the FY2023 list, #11 in FY2024 and #58 in FY2025; down 54 since Jul 2024–Jun 2025.
66	Hunt Optics & Imaging Inc Top agencies VA (Department of Veterans Affairs) DOI (Department of the Interior)	$208,487	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
67	Firebird Optics LLC Top agencies DLA (Defense Logistics Agency)	$203,756	0.1%	Rank history: not on the FY2021–FY2024 lists and #73 in FY2025; up 19 since Jul 2024–Jun 2025.
68	Vermilion Scientific LLC Top agencies VA (Department of Veterans Affairs)	$199,750	0.1%	Rank history: not on the FY2021–FY2024 lists and #67 in FY2025; new, not ranked in Jul 2024–Jun 2025.
69	Sellers Optical, Inc. Top agencies Navy (Department of the Navy)	$199,450	0.1%	Rank history: #77 in FY2021, #55 in FY2022, #64 in FY2023, not on the FY2024 list and #68 in FY2025; new, not ranked in Jul 2024–Jun 2025.
70	Testforce Usa, Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$199,330	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
71	Abbott Laboratories Inc. Top agencies VA (Department of Veterans Affairs)	$197,133	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
72	Biofire Diagnostics LLC Top agencies VA (Department of Veterans Affairs)	$196,294	0.1%	Rank history: not on the FY2021–FY2023 lists, #86 in FY2024 and not on the FY2025 list; new, not ranked in Jul 2024–Jun 2025.
73	Ochoa Enterprises Inc. Top agencies HHS (Department of Health and Human Services)	$195,000	0.1%	Rank history: not on the FY2021 list, #57 in FY2022, not on the FY2023 list, #49 in FY2024 and #87 in FY2025; up 24 since Jul 2024–Jun 2025.
74	Wright Tool Company LLC Through KD Analytical Consulting LLC Top agencies DTRA (Defense Threat Reduction Agency)	$192,654	0.1%	Rank history: not on the FY2021–FY2024 lists and #82 in FY2025; new, not ranked in Jul 2024–Jun 2025.
75	Chand, L.L.C. Top agencies DLA (Defense Logistics Agency)	$189,510	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
76	Vastglobe Logistics LLC Top agencies Army (Department of the Army)	$187,900	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
77	Light Conversion-Usa, Inc. Top agencies Army (Department of the Army)	$174,000	0.1%	Rank history: not on the FY2021–FY2022 lists, #99 in FY2023, not on the FY2024 list and #76 in FY2025; new, not ranked in Jul 2024–Jun 2025.
78	High Country Technology Consultants, LLC Top agencies USAF (Department of the Air Force)	$166,487	0.1%	Rank history: not on the FY2021–FY2024 lists and #79 in FY2025; new, not ranked in Jul 2024–Jun 2025.
79	Quickset Defense Technologies LLC Top agencies Army (Department of the Army)	$165,400	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
80	Environmental Resource Associates Inc. Through Ta Instruments - Waters L.L.C. Top agencies Navy (Department of the Navy)	$164,779	0.1%	Rank history: not on the FY2021–FY2024 lists and #81 in FY2025; up 39 since Jul 2024–Jun 2025.
81	Proaim Americas LLC. Top agencies VA (Department of Veterans Affairs)	$161,641	0.1%	Rank history: not on the FY2021–FY2023 lists, #12 in FY2024 and #83 in FY2025; up 173 since Jul 2024–Jun 2025.
82	J.h. Technologies, Inc. Top agencies Treasury (Department of the Treasury) Commerce (Department of Commerce)	$160,671	0.1%	Rank history: not on the FY2021–FY2024 lists and #84 in FY2025; new, not ranked in Jul 2024–Jun 2025.
83	Menlo Systems Inc. Top agencies USAF (Department of the Air Force)	$158,955	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
84	Fed Crew Inc. Top agencies Army (Department of the Army)	$157,324	0.1%	Rank history: not on the FY2021–FY2024 lists and #85 in FY2025; new, not ranked in Jul 2024–Jun 2025.
85	MDF Technologies Inc. Top agencies Navy (Department of the Navy)	$152,900	0.1%	Rank history: not on the FY2021–FY2025 lists; up 151 since Jul 2024–Jun 2025.
86	General Dynamics Corporation Through General Dynamics Land Systems - Canada Corporation Top agencies DLA (Defense Logistics Agency)	$149,208	0.1%	Rank history: not on the FY2021 list, #20 in FY2022, not on the FY2023 list, #100 in FY2024 and #89 in FY2025; up 32 since Jul 2024–Jun 2025.
87	Tempo Communications, Inc. Top agencies Navy (Department of the Navy)	$146,400	0.1%	Rank history: #31 in FY2021, not on the FY2022 list, #29 in FY2023, not on the FY2024 list and #71 in FY2025; up 55 since Jul 2024–Jun 2025.
88	Roche Holdings Inc. Through Roche Diagnostics Corporation Top agencies HHS (Department of Health and Human Services)	$142,511	0.1%	Rank history: not on the FY2021–FY2024 lists and #91 in FY2025; up 4 since Jul 2024–Jun 2025.
89	FSR Consulting LLC Top agencies Army (Department of the Army) Navy (Department of the Navy) USDA (Department of Agriculture)	$142,432	0.1%	Rank history: not on the FY2021–FY2024 lists and #55 in FY2025; up 11 since Jul 2024–Jun 2025.
90	PPD Development LP 2 awardees, including FEI Company and Fisher Scientific Company L.L.C. Top agencies Navy (Department of the Navy) DHA (Defense Health Agency) VA (Department of Veterans Affairs)	$138,825	0.1%	Rank history: not on the FY2021–FY2022 lists, #36 in FY2023, #43 in FY2024 and #48 in FY2025; down 35 since Jul 2024–Jun 2025.
91	King Lewis Investments LLC Top agencies DLA (Defense Logistics Agency)	$134,470	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
92	Focus Camera LLC Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) DHS (Department of Homeland Security)	$127,744	0.1%	Rank history: not on the FY2021–FY2025 lists; up 33 since Jul 2024–Jun 2025.
93	John Chadwick Corporation Top agencies Navy (Department of the Navy)	$127,360	0.1%	Rank history: not on the FY2021–FY2025 lists; up 190 since Jul 2024–Jun 2025.
94	Rigaku Americas Holding, Inc. Top agencies Army (Department of the Army)	$123,818	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
95	BMK Ventures, Inc. Top agencies VA (Department of Veterans Affairs)	$113,713	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
96	Bell Boeing Joint Project Office Top agencies Navy (Department of the Navy)	$112,049	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
97	Illumina, Inc. Top agencies HHS (Department of Health and Human Services)	$111,116	0.1%	Rank history: not on the FY2021–FY2024 lists and #86 in FY2025; down 7 since Jul 2024–Jun 2025.
98	BIO - RAD Laboratories Gesellschaft MIT Beschraenkter Haftung Through Bio-Rad Laboratories, Inc. Top agencies HHS (Department of Health and Human Services)	$110,884	0.1%	Rank history: not on the FY2021–FY2022 lists, #62 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
99	Fedpoint Systems LLC Top agencies Army (Department of the Army)	$108,685	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.
100	Golden Eagle Group LLC Top agencies Army (Department of the Army)	$105,000	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Jul 2024–Jun 2025.

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100 of 309 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 $157 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 6650 contractors in Jul 2025–Jun 2026?

1. Planewave Instruments Inc. ($22.2M), 2. RTX Corporation ($21.9M), 3. STS International, Incorporated ($18.7M), 4. Seiler Instrument and Manufacturing Company, Incorporated ($10.8M), 5. Hawkins Glass Wholesalers, L.l.c ($5.64M), 6. Elbit Systems of America - Night Vision LLC ($5.12M), 7. Olympus America Inc ($4.95M), 8. Gastops Inc. ($4.75M), 9. Ametek Inc. ($4.09M), 10. Berkshire Hathaway Inc. ($3.71M).

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