Top 100 Contractors in PSC 5961: Semiconductor Devices and Associated Hardware, Aug 2025–Jul 2026

Name: Top 100 Contractors in PSC 5961: Semiconductor Devices and Associated Hardware, Aug 2025–Jul 2026
Creator: GovTribe
License: https://creativecommons.org/licenses/by/4.0/

Parent companies by net contract obligations Aug 1, 2025 – Jul 31, 2026 Code page on GovTribe

The latest 12 months. See the newest fiscal year's list: Top Contractors in PSC 5961: Semiconductor Devices and Associated Hardware, FY2025.

The top 10 won 44% of PSC 5961 contract dollars from August 2025 through July 2026

Contract obligations: $45,639,244 Net of deobligations, by contracts coded PSC 5961
Contractors: 216 Parent companies with an obligation
Largest contractor: Ametek Inc. $5.47 million, 11.5% of obligations
Data as of: Nov 5, 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	Ametek Inc. 3 awardees, including Cameca Instruments, Inc., Spectro Analytical Instruments, Inc. and Gatan Inc. Top agencies Commerce (Department of Commerce)	$5,473,675	11.5%	Rank history: not on the FY2021–FY2024 lists and #1 in FY2025; unchanged since Aug 2024–Jul 2025.
2	Thermo Fisher Scientific Inc. Through FEI Company Top agencies Commerce (Department of Commerce)	$4,486,721	9.4%	Rank history: not on the FY2021–FY2025 lists; up 116 since Aug 2024–Jul 2025.
3	Sigray, Inc. Top agencies Commerce (Department of Commerce)	$2,050,999	4.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
4	Physical Electronics USA Inc. Top agencies Commerce (Department of Commerce)	$2,036,213	4.3%	Rank history: not on the FY2021–FY2024 lists and #2 in FY2025; new, not ranked in Aug 2024–Jul 2025.
5	Authentix, Inc. Top agencies Treasury (Department of the Treasury)	$1,356,713	2.9%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
6	Lintech Components Co. Inc. Top agencies DLA (Defense Logistics Agency)	$1,314,797	2.8%	Rank history: #6 in FY2021, #66 in FY2022, #20 in FY2023, #25 in FY2024 and #5 in FY2025; up 5 since Aug 2024–Jul 2025.
7	Oxford Instruments Asylum Research Inc. Top agencies Commerce (Department of Commerce)	$1,117,982	2.4%	Rank history: not on the FY2021–FY2023 lists, #1 in FY2024 and #4 in FY2025; unchanged since Aug 2024–Jul 2025.
8	Caitta Inc. Top agencies Commerce (Department of Commerce)	$1,070,412	2.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
9	Auburn University Top agencies Commerce (Department of Commerce)	$1,000,000	2.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
10	Technical Communities, Inc. Top agencies Commerce (Department of Commerce)	$991,165	2.1%	Rank history: not on the FY2021–FY2023 lists, #4 in FY2024 and #81 in FY2025; down 4 since Aug 2024–Jul 2025.
11	The Research Foundation for the State University of New York Top agencies Commerce (Department of Commerce)	$978,500	2.1%	Rank history: not on the FY2021–FY2024 lists and #58 in FY2025; new, not ranked in Aug 2024–Jul 2025.
12	Avnet Inc. Top agencies DLA (Defense Logistics Agency)	$903,360	1.9%	Rank history: #12 in FY2021, #7 in FY2022, #5 in FY2023, #7 in FY2024 and #10 in FY2025; new, not ranked in Aug 2024–Jul 2025.
13	Rohde & Schwarz GMBH & Co. Kommanditgesellschaft 2 awardees, including Rohde & Schwarz Usa, Inc. and Zurich Instruments AG Top agencies Commerce (Department of Commerce)	$883,686	1.9%	Rank history: not on the FY2021–FY2024 lists and #18 in FY2025; new, not ranked in Aug 2024–Jul 2025.
14	Washington Foundries Inc. Top agencies DLA (Defense Logistics Agency)	$863,139	1.8%	Rank history: #3 in FY2021, #9 in FY2022, #11 in FY2023, #23 in FY2024 and #19 in FY2025; unchanged since Aug 2024–Jul 2025.
15	Semtex Industrial Corp Top agencies DLA (Defense Logistics Agency)	$848,923	1.8%	Rank history: not on the FY2021–FY2023 lists, #63 in FY2024 and #9 in FY2025; up 1 since Aug 2024–Jul 2025.
16	Kapteyn-Murnane Laboratories, Inc. Top agencies Commerce (Department of Commerce)	$687,700	1.4%	Rank history: not on the FY2021–FY2024 lists and #11 in FY2025; up 90 since Aug 2024–Jul 2025.
17	Spectrum Laser & Technologies Inc. Top agencies DLA (Defense Logistics Agency)	$667,994	1.4%	Rank history: not on the FY2021 list, #3 in FY2022, not on the FY2023 list, #26 in FY2024 and not on the FY2025 list; up 22 since Aug 2024–Jul 2025.
18	Teledyne Technologies Incorporated 2 awardees, including Teledyne Digital Imaging US, Inc. and Teledyne Flir Commercial Systems Inc. Top agencies Commerce (Department of Commerce)	$627,710	1.3%	Rank history: not on the FY2021–FY2023 lists, #61 in FY2024 and #21 in FY2025; up 36 since Aug 2024–Jul 2025.
19	Ontic Engineering and Manufacturing Inc. 2 awardees, including Centroid, Inc. Top agencies DLA (Defense Logistics Agency)	$616,529	1.3%	Rank history: #8 in FY2021, #13 in FY2022, #28 in FY2023, #11 in FY2024 and #25 in FY2025; new, not ranked in Aug 2024–Jul 2025.
20	Macom Technology Solutions Inc. Top agencies DLA (Defense Logistics Agency) DOT (Department of Transportation)	$571,548	1.2%	Rank history: not on the FY2021–FY2023 lists, #43 in FY2024 and #6 in FY2025; down 12 since Aug 2024–Jul 2025.
21	Samyak Solutions, Inc. Top agencies Commerce (Department of Commerce)	$516,920	1.1%	Rank history: not on the FY2021–FY2023 lists, #85 in FY2024 and not on the FY2025 list; up 67 since Aug 2024–Jul 2025.
22	Oxford Instruments America, Inc. Top agencies Commerce (Department of Commerce)	$505,529	1.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
23	Netzsch Instruments North America, LLC Top agencies Commerce (Department of Commerce)	$475,236	1.0%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
24	MPI America Inc. Top agencies Commerce (Department of Commerce)	$446,795	0.9%	Rank history: not on the FY2021–FY2024 lists and #24 in FY2025; new, not ranked in Aug 2024–Jul 2025.
25	RTX Corporation 11 awardees, including Raytheon Company, Hamilton Sundstrand Corporation and Rockwell Collins, Inc. Top agencies NASA (National Aeronautics and Space Administration) DLA (Defense Logistics Agency)	$431,650	0.9%	Rank history: #22 in FY2021, #6 in FY2022, #4 in FY2023, #13 in FY2024 and #7 in FY2025; down 5 since Aug 2024–Jul 2025.
26	Northrop Grumman Systems Corporation Top agencies DLA (Defense Logistics Agency)	$406,508	0.9%	Rank history: not on the FY2021–FY2024 lists and #52 in FY2025; up 44 since Aug 2024–Jul 2025.
27	Semiconductor Logistics Corp Top agencies DLA (Defense Logistics Agency)	$402,033	0.8%	Rank history: #10 in FY2021, #22 in FY2022, #12 in FY2023, #6 in FY2024 and #8 in FY2025; down 22 since Aug 2024–Jul 2025.
28	Mil-Aero Solutions Inc. Top agencies DLA (Defense Logistics Agency)	$394,889	0.8%	Rank history: #11 in FY2021, #10 in FY2022, #8 in FY2023, #10 in FY2024 and #16 in FY2025; down 18 since Aug 2024–Jul 2025.
29	L3Harris Technologies, Inc. Through L3Harris Maritime Power & Energy Solutions, Inc. Top agencies Navy (Department of the Navy)	$392,401	0.8%	Rank history: #32 in FY2021, not on the FY2022 list, #16 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
30	Light Conversion-Usa, Inc. Top agencies Commerce (Department of Commerce)	$380,040	0.8%	Rank history: not on the FY2021–FY2023 lists, #40 in FY2024 and not on the FY2025 list; up 11 since Aug 2024–Jul 2025.
31	Resion LLC Top agencies DLA (Defense Logistics Agency)	$377,975	0.8%	Rank history: #14 in FY2021, #28 in FY2022, #19 in FY2023, #18 in FY2024 and #13 in FY2025; down 9 since Aug 2024–Jul 2025.
32	Go Green Power Solutions, LLC Top agencies Commerce (Department of Commerce)	$353,248	0.7%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
33	Protochips, Inc. Top agencies Commerce (Department of Commerce)	$348,830	0.7%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
34	Menlo Systems Inc. Top agencies Commerce (Department of Commerce)	$348,683	0.7%	Rank history: not on the FY2021–FY2023 lists, #30 in FY2024 and not on the FY2025 list; down 6 since Aug 2024–Jul 2025.
35	Stratus Services, L.L.C. Through Stratus Systems, Inc. Top agencies DLA (Defense Logistics Agency)	$346,742	0.7%	Rank history: not on the FY2021–FY2024 lists and #31 in FY2025; up 62 since Aug 2024–Jul 2025.
36	Jemtec Electronics Corp Top agencies DLA (Defense Logistics Agency)	$340,837	0.7%	Rank history: #37 in FY2021, #32 in FY2022, not on the FY2023 list, #72 in FY2024 and #40 in FY2025; up 26 since Aug 2024–Jul 2025.
37	Lucas Signatone Corp Top agencies Commerce (Department of Commerce)	$331,560	0.7%	Rank history: not on the FY2021–FY2024 lists and #22 in FY2025; new, not ranked in Aug 2024–Jul 2025.
38	Sitek Process Solutions Top agencies Commerce (Department of Commerce)	$298,845	0.6%	Rank history: #62 in FY2021, not on the FY2022–FY2024 lists and #23 in FY2025; new, not ranked in Aug 2024–Jul 2025.
39	Falcon Electronics, LLC Top agencies DLA (Defense Logistics Agency)	$296,970	0.6%	Rank history: #13 in FY2021, #27 in FY2022, #34 in FY2023, #8 in FY2024 and #14 in FY2025; down 24 since Aug 2024–Jul 2025.
40	Innovative Scientific Solutions Inc. Top agencies USAF (Department of the Air Force)	$287,998	0.6%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
41	Semiprobe, Inc. Top agencies Commerce (Department of Commerce)	$251,993	0.5%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
42	Government Scientific Source Inc. Top agencies Commerce (Department of Commerce)	$251,769	0.5%	Rank history: #69 in FY2021 and not on the FY2022–FY2025 lists; up 54 since Aug 2024–Jul 2025.
43	Maple Leaf Photonics LLC Top agencies Commerce (Department of Commerce)	$244,023	0.5%	Rank history: not on the FY2021–FY2024 lists and #28 in FY2025; new, not ranked in Aug 2024–Jul 2025.
44	Nanoelectronic Imaging, Inc. Top agencies Commerce (Department of Commerce)	$243,500	0.5%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
45	Mosaic Microsystems LLC Top agencies Commerce (Department of Commerce)	$242,388	0.5%	Rank history: not on the FY2021 list, #70 in FY2022, not on the FY2023 list, #38 in FY2024 and not on the FY2025 list; down 8 since Aug 2024–Jul 2025.
46	Ta Instruments - Waters L.L.C. Top agencies Commerce (Department of Commerce)	$242,358	0.5%	Rank history: not on the FY2021–FY2025 lists; up 63 since Aug 2024–Jul 2025.
47	Atlantic Diving Supply, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$217,589	0.5%	Rank history: not on the FY2021–FY2025 lists; up 122 since Aug 2024–Jul 2025.
48	Atlas Copco Rental LLC Through Montana Instruments Corporation Top agencies Commerce (Department of Commerce)	$210,279	0.4%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
49	Laserspec Top agencies Commerce (Department of Commerce)	$200,124	0.4%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
50	Now Electronics, Inc. Top agencies DLA (Defense Logistics Agency)	$191,187	0.4%	Rank history: #27 in FY2021, not on the FY2022 list, #23 in FY2023, #37 in FY2024 and #37 in FY2025; up 13 since Aug 2024–Jul 2025.
51	All TECH Electronics Inc. Top agencies DLA (Defense Logistics Agency)	$188,509	0.4%	Rank history: not on the FY2021 list, #34 in FY2022, #39 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
52	Solitron Devices, Inc. Top agencies DLA (Defense Logistics Agency)	$184,535	0.4%	Rank history: #19 in FY2021, #40 in FY2022, #50 in FY2023, #55 in FY2024 and #66 in FY2025; up 39 since Aug 2024–Jul 2025.
53	Undersea Sensor Systems Inc. Through Ems Development Corporation Top agencies Navy (Department of the Navy)	$179,849	0.4%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
54	American Microsemiconductor Inc. Top agencies DLA (Defense Logistics Agency)	$179,331	0.4%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
55	Leonardo S.p.A. 2 awardees, including DRS Naval Power Systems Inc. and Pivotal Power Inc. Top agencies Navy (Department of the Navy)	$171,333	0.4%	Rank history: #87 in FY2021, not on the FY2022–FY2023 lists, #54 in FY2024 and #49 in FY2025; down 8 since Aug 2024–Jul 2025.
56	HQ Graphene Systems B.V. Top agencies Commerce (Department of Commerce)	$170,616	0.4%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
57	Hesse Mechatronics, Inc. Top agencies Commerce (Department of Commerce)	$168,790	0.4%	Rank history: not on the FY2021 list, #19 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
58	Telops Usa, Inc. Top agencies Commerce (Department of Commerce)	$162,200	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
59	Mirion Technologies (Canberra), Inc. Top agencies Commerce (Department of Commerce)	$157,238	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
60	Govage, Inc. Top agencies Commerce (Department of Commerce)	$145,543	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
61	Starfire Industries LLC Top agencies Commerce (Department of Commerce)	$144,695	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
62	Thorlabs, Inc. Top agencies Commerce (Department of Commerce)	$143,219	0.3%	Rank history: not on the FY2021–FY2024 lists and #50 in FY2025; up 13 since Aug 2024–Jul 2025.
63	ECI Defense Group, Inc. Top agencies DLA (Defense Logistics Agency)	$137,613	0.3%	Rank history: #5 in FY2021, #48 in FY2022, #10 in FY2023, #48 in FY2024 and #32 in FY2025; down 6 since Aug 2024–Jul 2025.
64	NVE Corporation Top agencies Commerce (Department of Commerce)	$135,897	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
65	Burke Products Inc. Top agencies DLA (Defense Logistics Agency)	$134,392	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
66	Lockheed Martin Corporation 3 awardees, including Sikorsky Aircraft Corporation and Derco Aerospace, Inc. Top agencies DLA (Defense Logistics Agency)	$131,323	0.3%	Rank history: #1 in FY2021, #51 in FY2022, #38 in FY2023, #67 in FY2024 and #64 in FY2025; up 2 since Aug 2024–Jul 2025.
67	Espec North America Inc. Top agencies Commerce (Department of Commerce)	$124,469	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
68	Pd&E Electronics, LLC Top agencies DLA (Defense Logistics Agency)	$121,123	0.3%	Rank history: #35 in FY2021, #46 in FY2022, #43 in FY2023, not on the FY2024 list and #20 in FY2025; down 32 since Aug 2024–Jul 2025.
69	Lightmachinery Inc. Top agencies Commerce (Department of Commerce)	$118,436	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
70	Frontgrade Technologies Inc. Top agencies DLA (Defense Logistics Agency)	$113,215	0.2%	Rank history: not on the FY2021–FY2024 lists and #44 in FY2025; up 17 since Aug 2024–Jul 2025.
71	Electroplating Consultants International Inc. Top agencies Army (Department of the Army)	$106,722	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
72	Heico Corp 3 awardees, including Pioneer Industries, LLC, Vpt, Inc. and Seal Dynamics LLC Top agencies DLA (Defense Logistics Agency) NASA (National Aeronautics and Space Administration)	$105,611	0.2%	Rank history: #71 in FY2021, not on the FY2022 list, #84 in FY2023, not on the FY2024 list and #48 in FY2025; up 69 since Aug 2024–Jul 2025.
73	Advanced Technical Marketing, Inc. Top agencies Commerce (Department of Commerce)	$105,190	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
74	PC Vision Inc Top agencies Commerce (Department of Commerce)	$104,250	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
75	GSN Consulting LLC Top agencies DLA (Defense Logistics Agency)	$104,193	0.2%	Rank history: #18 in FY2021, #24 in FY2022, #13 in FY2023, #39 in FY2024 and #33 in FY2025; down 26 since Aug 2024–Jul 2025.
76	Cerium Laboratories LLC Top agencies Commerce (Department of Commerce)	$102,737	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
77	MKS Inc. Top agencies Commerce (Department of Commerce)	$99,900	0.2%	Rank history: not on the FY2021–FY2025 lists; up 49 since Aug 2024–Jul 2025.
78	Quantum Design, Inc. Top agencies Commerce (Department of Commerce)	$98,980	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
79	TECH Service Solutions LLC Top agencies USAF (Department of the Air Force)	$98,784	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
80	Spinner ICT Inc. Top agencies Commerce (Department of Commerce)	$98,000	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
81	Forward Components Inc. Top agencies DLA (Defense Logistics Agency)	$95,704	0.2%	Rank history: #17 in FY2021, #25 in FY2022, #18 in FY2023, #41 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
82	Custom Solutions Group, Inc. Top agencies Commerce (Department of Commerce)	$92,499	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
83	BAE Systems Through BAE Systems Information and Electronic Systems Integration Inc. Top agencies DLA (Defense Logistics Agency)	$92,236	0.2%	Rank history: not on the FY2021–FY2024 lists and #90 in FY2025; new, not ranked in Aug 2024–Jul 2025.
84	V-Tek Inc. Top agencies Commerce (Department of Commerce)	$85,875	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
85	Liquid Instruments Inc Top agencies Commerce (Department of Commerce)	$85,300	0.2%	Rank history: not on the FY2021–FY2024 lists and #57 in FY2025; new, not ranked in Aug 2024–Jul 2025.
86	Micronix USA LLC Top agencies Commerce (Department of Commerce)	$82,680	0.2%	Rank history: not on the FY2021–FY2023 lists, #74 in FY2024 and not on the FY2025 list; up 13 since Aug 2024–Jul 2025.
87	AE Techron Inc. Top agencies Commerce (Department of Commerce)	$80,965	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
88	Nhanced Semiconductors, Inc. Top agencies Commerce (Department of Commerce)	$79,500	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
89	Tabor Electronics LLC Top agencies Commerce (Department of Commerce)	$73,680	0.2%	Rank history: not on the FY2021–FY2024 lists and #61 in FY2025; new, not ranked in Aug 2024–Jul 2025.
90	Triman Industries Inc. Top agencies DLA (Defense Logistics Agency)	$72,996	0.2%	Rank history: #20 in FY2021, #26 in FY2022, #36 in FY2023, #79 in FY2024 and #43 in FY2025; down 7 since Aug 2024–Jul 2025.
91	Avro Inc. Top agencies Commerce (Department of Commerce)	$72,764	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
92	CD & T Logistics Inc Top agencies DOT (Department of Transportation)	$70,193	0.1%	Rank history: not on the FY2021–FY2023 lists, #81 in FY2024 and #41 in FY2025; down 27 since Aug 2024–Jul 2025.
93	Conoptics Inc. Top agencies Commerce (Department of Commerce)	$66,290	0.1%	Rank history: not on the FY2021–FY2024 lists and #67 in FY2025; new, not ranked in Aug 2024–Jul 2025.
94	Applied Nanotools Inc. Top agencies NASA (National Aeronautics and Space Administration)	$63,707	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
95	Kleindiek Inc. Top agencies Commerce (Department of Commerce)	$63,521	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
96	Rigaku Americas Holding, Inc. Top agencies Commerce (Department of Commerce)	$60,791	0.1%	Rank history: not on the FY2021–FY2024 lists and #54 in FY2025; down 20 since Aug 2024–Jul 2025.
97	Praevium Research Inc. Top agencies Navy (Department of the Navy)	$60,000	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
98	Applied Nanostructures, Inc. Top agencies Commerce (Department of Commerce)	$58,550	0.1%	Rank history: not on the FY2021–FY2024 lists and #73 in FY2025; new, not ranked in Aug 2024–Jul 2025.
99	Fisher Scientific Company L.L.C. Top agencies Commerce (Department of Commerce)	$58,065	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
100	Jo-Kell Inc. Top agencies DLA (Defense Logistics Agency)	$57,749	0.1%	Rank history: #9 in FY2021, #90 in FY2022, #54 in FY2023, #3 in FY2024 and #34 in FY2025; down 98 since Aug 2024–Jul 2025.

Show 75 more

100 of 216 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 $47.6 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.
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 Aug 2024–Jul 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 5961 contractors in Aug 2025–Jul 2026?

1. Ametek Inc. ($5.47M), 2. Thermo Fisher Scientific Inc. ($4.49M), 3. Sigray, Inc. ($2.05M), 4. Physical Electronics USA Inc. ($2.04M), 5. Authentix, Inc. ($1.36M), 6. Lintech Components Co. Inc. ($1.31M), 7. Oxford Instruments Asylum Research Inc. ($1.12M), 8. Caitta Inc. ($1.07M), 9. Auburn University ($1M), 10. Technical Communities, Inc. ($991K).

On GovTribe

Research every contractor on this list

Every contract, task order and IDV they hold
Their subsidiaries, teammates and competitors
Open opportunities they're positioned for
Alerts when they win new work

Try for free Login