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

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Planewave Instruments Inc. Top agencies OSD (Office of the Secretary of Defense)	$22,150,000	13.4%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
2	RTX Corporation 7 awardees, including Rockwell Collins, Inc., Hamilton Sundstrand Corporation and Raytheon Company Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$21,980,484	13.3%	Rank history: #5 in FY2021, #17 in FY2022, #11 in FY2023, #8 in FY2024 and #1 in FY2025; up 10 since Aug 2024–Jul 2025.
3	STS International, Incorporated Top agencies Navy (Department of the Navy)	$18,659,476	11.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
4	Seiler Instrument and Manufacturing Company, Incorporated Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$10,759,900	6.5%	Rank history: not on the FY2021 list, #45 in FY2022, #100 in FY2023, #23 in FY2024 and #19 in FY2025; up 16 since Aug 2024–Jul 2025.
5	Hawkins Glass Wholesalers, L.l.c Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$5,638,105	3.4%	Rank history: not on the FY2021–FY2024 lists and #7 in FY2025; up 62 since Aug 2024–Jul 2025.
6	Gastops Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$5,498,018	3.3%	Rank history: #6 in FY2021, #13 in FY2022, #24 in FY2023, #14 in FY2024 and not on the FY2025 list; up 7 since Aug 2024–Jul 2025.
7	Elbit Systems Ltd Through Elbit Systems of America - Night Vision LLC Top agencies Army (Department of the Army)	$5,123,698	3.1%	Rank history: #18 in FY2021 and not on the FY2022–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
8	Valkyrie Enterprises, LLC Through Optical Sciences, LLC Top agencies USAF (Department of the Air Force)	$4,132,233	2.5%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
9	Rolls-Royce Corporation Top agencies USAF (Department of the Air Force)	$4,051,008	2.5%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
10	Ametek Inc. 3 awardees, including Spectro Scientific, Inc. and Taylor Hobson Inc. Top agencies USAF (Department of the Air Force)	$3,993,239	2.4%	Rank history: #2 in FY2021, #3 in FY2022, #18 in FY2023, #19 in FY2024 and #5 in FY2025; down 4 since Aug 2024–Jul 2025.
11	Olympus America Inc. Top agencies USAF (Department of the Air Force)	$3,972,357	2.4%	Rank history: #16 in FY2021, #14 in FY2022, not on the FY2023 list, #3 in FY2024 and #3 in FY2025; down 8 since Aug 2024–Jul 2025.
12	Berkshire Hathaway Inc. Through Kitco Fiber Optics Inc. Top agencies Navy (Department of the Navy) Army (Department of the Army)	$3,714,265	2.3%	Rank history: not on the FY2021–FY2023 lists, #75 in FY2024 and #4 in FY2025; down 8 since Aug 2024–Jul 2025.
13	Hexagon Manufacturing Intelligence Inc. 2 awardees, including Leica Geosystems Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$3,590,893	2.2%	Rank history: not on the FY2021–FY2024 lists and #40 in FY2025; new, not ranked in Aug 2024–Jul 2025.
14	Nikon Metrology Inc Through Nikon Instruments Inc. Top agencies HHS (Department of Health and Human Services) Navy (Department of the Navy) VA (Department of Veterans Affairs)	$3,352,983	2.0%	Rank history: not on the FY2021–FY2022 lists, #25 in FY2023, #51 in FY2024 and #13 in FY2025; up 40 since Aug 2024–Jul 2025.
15	Quality Vision International Inc. Top agencies Navy (Department of the Navy)	$2,821,671	1.7%	Rank history: not on the FY2021–FY2023 lists, #61 in FY2024 and #32 in FY2025; up 11 since Aug 2024–Jul 2025.
16	Atlantic Diving Supply, Inc. Top agencies DHS (Department of Homeland Security) DOJ (Department of Justice) DLA (Defense Logistics Agency)	$2,581,239	1.6%	Rank history: not on the FY2021–FY2024 lists and #18 in FY2025; up 109 since Aug 2024–Jul 2025.
17	Waygate Technologies USA LP Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$2,447,776	1.5%	Rank history: #7 in FY2021, #2 in FY2022, #17 in FY2023, #7 in FY2024 and not on the FY2025 list; up 31 since Aug 2024–Jul 2025.
18	Optex Systems, Inc. 2 awardees Top agencies DLA (Defense Logistics Agency)	$2,336,227	1.4%	Rank history: #8 in FY2021, #6 in FY2022, #16 in FY2023, #6 in FY2024 and #11 in FY2025; up 120 since Aug 2024–Jul 2025.
19	Carl Zeiss Microscopy, LLC Top agencies USAF (Department of the Air Force) VA (Department of Veterans Affairs)	$2,043,761	1.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
20	Atap Inc. Top agencies Navy (Department of the Navy)	$2,014,788	1.2%	Rank history: not on the FY2021 list, #4 in FY2022, #15 in FY2023, #10 in FY2024 and #9 in FY2025; down 12 since Aug 2024–Jul 2025.
21	Heico Corp 2 awardees, including Santa Barbara Infrared, Inc. and Pioneer Industries, LLC Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$1,732,872	1.1%	Rank history: not on the FY2021 list, #11 in FY2022, #39 in FY2023 and not on the FY2024–FY2025 lists; up 291 since Aug 2024–Jul 2025.
22	Halma Public Limited Company 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 #99 in FY2025; new, not ranked in Aug 2024–Jul 2025.
23	Ccon Inc. Top agencies Navy (Department of the Navy)	$886,250	0.5%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 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; up 1 since Aug 2024–Jul 2025.
25	Tevet LLC Top agencies Navy (Department of the Navy) DOI (Department of the Interior) DOJ (Department of Justice)	$722,896	0.4%	Rank history: not on the FY2021–FY2023 lists, #92 in FY2024 and #23 in FY2025; new, not ranked in Aug 2024–Jul 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 Aug 2024–Jul 2025.
27	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 Aug 2024–Jul 2025.
28	Teledyne Technologies Incorporated Through Teledyne Flir Defense, LLC Top agencies Army (Department of the Army)	$620,591	0.4%	Rank history: not on the FY2021 list, #19 in FY2022, #22 in FY2023 and not on the FY2024–FY2025 lists; up 82 since Aug 2024–Jul 2025.
29	Government of the United States Through Federal Prison Industries, Inc. Top agencies DOJ (Department of Justice)	$601,089	0.4%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 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 #45 in FY2025; up 100 since Aug 2024–Jul 2025.
31	The Boeing Company Top agencies Army (Department of the Army)	$583,344	0.4%	Rank history: not on the FY2021–FY2022 lists, #43 in FY2023, not on the FY2024 list and #27 in FY2025; new, not ranked in Aug 2024–Jul 2025.
32	Elbit Systems of America LLC Through Elbitamerica, Inc. Top agencies DLA (Defense Logistics Agency)	$576,517	0.3%	Rank history: not on the FY2021–FY2023 lists, #72 in FY2024 and #29 in FY2025; up 36 since Aug 2024–Jul 2025.
33	Bertin Alpao Top agencies USAF (Department of the Air Force)	$560,591	0.3%	Rank history: not on the FY2021–FY2024 lists and #31 in FY2025; new, not ranked in Aug 2024–Jul 2025.
34	Lockheed Martin Corporation 2 awardees Top agencies Commerce (Department of Commerce)	$541,000	0.3%	Rank history: #3 in FY2021, not on the FY2022 list, #30 in FY2023, #1 in FY2024 and #56 in FY2025; down 33 since Aug 2024–Jul 2025.
35	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 Aug 2024–Jul 2025.
36	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 9 since Aug 2024–Jul 2025.
37	Oshkosh Corporation Through Oshkosh Defense LLC Top agencies DLA (Defense Logistics Agency)	$463,953	0.3%	Rank history: not on the FY2021–FY2023 lists, #54 in FY2024 and #79 in FY2025; up 78 since Aug 2024–Jul 2025.
38	Toptica Photonics Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$431,640	0.3%	Rank history: not on the FY2021–FY2023 lists, #25 in FY2024 and #36 in FY2025; down 4 since Aug 2024–Jul 2025.
39	Government Scientific Source Inc. Top agencies Navy (Department of the Navy) DOJ (Department of Justice) DOI (Department of the Interior)	$424,709	0.3%	Rank history: #23 in FY2021, #24 in FY2022, #65 in FY2023, #20 in FY2024 and not on the FY2025 list; down 21 since Aug 2024–Jul 2025.
40	Danaher Corporation 4 awardees, including Leica Microsystems Inc., Beckman Coulter, Inc. and Hach Company Top agencies DHA (Defense Health Agency) DOJ (Department of Justice) DOE (Department of Energy)	$424,232	0.3%	Rank history: #22 in FY2021, #16 in FY2022, #21 in FY2023, #16 in FY2024 and #15 in FY2025; down 18 since Aug 2024–Jul 2025.
41	Am General LLC Top agencies DLA (Defense Logistics Agency)	$416,167	0.3%	Rank history: not on the FY2021–FY2024 lists and #42 in FY2025; up 50 since Aug 2024–Jul 2025.
42	Atlas Instrument Co Inc. Top agencies DLA (Defense Logistics Agency)	$410,350	0.2%	Rank history: not on the FY2021–FY2023 lists, #93 in FY2024 and #43 in FY2025; up 4 since Aug 2024–Jul 2025.
43	Hitachi, Ltd. Through Hitachi High-Tech America, Inc. Top agencies Navy (Department of the Navy) Treasury (Department of the Treasury)	$406,198	0.2%	Rank history: #26 in FY2021, not on the FY2022 list, #31 in FY2023 and not on the FY2024–FY2025 lists; up 180 since Aug 2024–Jul 2025.
44	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 Aug 2024–Jul 2025.
45	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 #55 in FY2025; down 1 since Aug 2024–Jul 2025.
46	Advanced Computer Concepts, Inc. Top agencies WHS (DOD Washington Headquarters Service) Navy (Department of the Navy)	$311,170	0.2%	Rank history: not on the FY2021 list, #87 in FY2022, not on the FY2023–FY2024 lists and #21 in FY2025; down 18 since Aug 2024–Jul 2025.
47	Quantico Tactical Incorporated Top agencies DLA (Defense Logistics Agency)	$309,810	0.2%	Rank history: not on the FY2021–FY2025 lists; up 116 since Aug 2024–Jul 2025.
48	Laser Techniques Company, LLC Top agencies Army (Department of the Army)	$294,000	0.2%	Rank history: not on the FY2021–FY2023 lists, #82 in FY2024 and #33 in FY2025; down 13 since Aug 2024–Jul 2025.
49	Rosco Precision Machinery, LLC Top agencies Navy (Department of the Navy)	$286,860	0.2%	Rank history: not on the FY2021–FY2024 lists and #93 in FY2025; new, not ranked in Aug 2024–Jul 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 #51 in FY2025; down 3 since Aug 2024–Jul 2025.
51	Adam N Eve Safety LLC Top agencies USAF (Department of the Air Force)	$269,325	0.2%	Rank history: not on the FY2021–FY2024 lists and #50 in FY2025; up 216 since Aug 2024–Jul 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 Aug 2024–Jul 2025.
53	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 #76 in FY2025; up 58 since Aug 2024–Jul 2025.
54	Samyak Solutions, Inc. Top agencies Navy (Department of the Navy)	$245,155	0.1%	Rank history: not on the FY2021–FY2025 lists; up 73 since Aug 2024–Jul 2025.
55	BNC Corp. Top agencies Navy (Department of the Navy)	$240,200	0.1%	Rank history: not on the FY2021 list, #40 in FY2022, #20 in FY2023, #35 in FY2024 and #63 in FY2025; up 16 since Aug 2024–Jul 2025.
56	Adorama Inc. Top agencies Army (Department of the Army)	$238,942	0.1%	Rank history: not on the FY2021–FY2024 lists and #59 in FY2025; up 171 since Aug 2024–Jul 2025.
57	Federal Resources Supply Company, LLC Top agencies USAF (Department of the Air Force) DHA (Defense Health Agency)	$237,940	0.1%	Rank history: not on the FY2021–FY2024 lists and #44 in FY2025; up 76 since Aug 2024–Jul 2025.
58	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 #49 in FY2025; down 5 since Aug 2024–Jul 2025.
59	Tescan USA Inc. Top agencies Treasury (Department of the Treasury)	$224,342	0.1%	Rank history: not on the FY2021–FY2023 lists, #39 in FY2024 and #60 in FY2025; down 20 since Aug 2024–Jul 2025.
60	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 Aug 2024–Jul 2025.
61	Giga, Inc. Top agencies Army (Department of the Army)	$215,352	0.1%	Rank history: not on the FY2021–FY2024 lists and #62 in FY2025; new, not ranked in Aug 2024–Jul 2025.
62	Polymedco LLC Through 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 Aug 2024–Jul 2025.
63	Firebird Optics LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$210,726	0.1%	Rank history: not on the FY2021–FY2024 lists and #72 in FY2025; up 26 since Aug 2024–Jul 2025.
64	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 Aug 2024–Jul 2025.
65	Vermilion Scientific LLC Top agencies VA (Department of Veterans Affairs)	$199,750	0.1%	Rank history: not on the FY2021–FY2024 lists and #66 in FY2025; new, not ranked in Aug 2024–Jul 2025.
66	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 #67 in FY2025; new, not ranked in Aug 2024–Jul 2025.
67	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 Aug 2024–Jul 2025.
68	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 Aug 2024–Jul 2025.
69	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 Aug 2024–Jul 2025.
70	Thorlabs, Inc. Top agencies USAF (Department of the Air Force)	$195,744	0.1%	Rank history: not on the FY2021–FY2022 lists, #51 in FY2023, not on the FY2024 list and #38 in FY2025; down 10 since Aug 2024–Jul 2025.
71	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 #86 in FY2025; up 25 since Aug 2024–Jul 2025.
72	KD Analytical Consulting LLC Top agencies DTRA (Defense Threat Reduction Agency)	$192,654	0.1%	Rank history: not on the FY2021–FY2024 lists and #81 in FY2025; new, not ranked in Aug 2024–Jul 2025.
73	Valipharm Inc. Top agencies DLA (Defense Logistics Agency)	$188,677	0.1%	Rank history: not on the FY2021–FY2024 lists and #22 in FY2025; down 36 since Aug 2024–Jul 2025.
74	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 Aug 2024–Jul 2025.
75	Kay Kay LLC Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$179,176	0.1%	Rank history: not on the FY2021–FY2024 lists and #98 in FY2025; up 132 since Aug 2024–Jul 2025.
76	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 #75 in FY2025; new, not ranked in Aug 2024–Jul 2025.
77	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 #78 in FY2025; new, not ranked in Aug 2024–Jul 2025.
78	Moog Inc. Through 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 Aug 2024–Jul 2025.
79	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 #80 in FY2025; up 34 since Aug 2024–Jul 2025.
80	Space Optics Research Labs, LLC Top agencies Navy (Department of the Navy)	$162,345	0.1%	Rank history: not on the FY2021 list, #83 in FY2022, not on the FY2023 list, #79 in FY2024 and not on the FY2025 list; down 21 since Aug 2024–Jul 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 #82 in FY2025; up 176 since Aug 2024–Jul 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 #83 in FY2025; new, not ranked in Aug 2024–Jul 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 Aug 2024–Jul 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 #84 in FY2025; new, not ranked in Aug 2024–Jul 2025.
85	Lsense Inc. Top agencies Navy (Department of the Navy)	$154,750	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
86	MDF Technologies Inc. Top agencies Navy (Department of the Navy)	$152,900	0.1%	Rank history: not on the FY2021–FY2025 lists; up 153 since Aug 2024–Jul 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 #70 in FY2025; up 50 since Aug 2024–Jul 2025.
88	Technical Communities, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$143,575	0.1%	Rank history: #53 in FY2021, #47 in FY2022, not on the FY2023 list, #11 in FY2024 and #57 in FY2025; down 78 since Aug 2024–Jul 2025.
89	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 #90 in FY2025; new, not ranked in Aug 2024–Jul 2025.
90	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 #54 in FY2025; up 9 since Aug 2024–Jul 2025.
91	Thermo Fisher Scientific Inc. 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 #47 in FY2025; down 40 since Aug 2024–Jul 2025.
92	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 Aug 2024–Jul 2025.
93	AAR Corp. Through AAR Supply Chain, Inc. Top agencies DLA (Defense Logistics Agency)	$131,800	0.1%	Rank history: not on the FY2021–FY2024 lists and #39 in FY2025; down 38 since Aug 2024–Jul 2025.
94	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 27 since Aug 2024–Jul 2025.
95	Bollinger Shipyards Lockport, L.L.C. Through Chand, L.L.C. Top agencies DLA (Defense Logistics Agency)	$127,593	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
96	John Chadwick Corporation Top agencies Navy (Department of the Navy)	$127,360	0.1%	Rank history: not on the FY2021–FY2025 lists; up 185 since Aug 2024–Jul 2025.
97	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 Aug 2024–Jul 2025.
98	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 Aug 2024–Jul 2025.
99	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 Aug 2024–Jul 2025.
100	Illumina, Inc. Top agencies HHS (Department of Health and Human Services)	$111,116	0.1%	Rank history: not on the FY2021–FY2024 lists and #85 in FY2025; down 12 since Aug 2024–Jul 2025.

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 $165 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