Top 100 Contractors in PSC 6680: Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments, Aug 2025–Jul 2026

Name: Top 100 Contractors in PSC 6680: Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments, 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 6680: Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments, FY2025.

The top 10 won 42% of PSC 6680 contract dollars from August 2025 through July 2026

Contract obligations: $108,347,698 Net of deobligations, by contracts coded PSC 6680
Contractors: 405 Parent companies with an obligation
Largest contractor: Standard Calibrations Inc. $9.04 million, 7.7% 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	Standard Calibrations Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$9,038,390	7.7%	Rank history: #6 in FY2021, #5 in FY2022, #2 in FY2023, #2 in FY2024 and #1 in FY2025; unchanged since Aug 2024–Jul 2025.
2	RTX Corporation 8 awardees, including Simmonds Precision Products Inc., Hamilton Sundstrand Corporation and Rockwell Collins, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$8,904,194	7.5%	Rank history: #1 in FY2021, #1 in FY2022, #1 in FY2023, #1 in FY2024 and #2 in FY2025; up 2 since Aug 2024–Jul 2025.
3	Heidelberg Resources, LLC Top agencies USAF (Department of the Air Force)	$5,844,973	5.0%	Rank history: not on the FY2021–FY2024 lists and #3 in FY2025; new, not ranked in Aug 2024–Jul 2025.
4	BEI Precision Systems & Space Company, Inc. Top agencies DLA (Defense Logistics Agency)	$5,613,960	4.8%	Rank history: not on the FY2021–FY2023 lists, #66 in FY2024 and #8 in FY2025; up 3 since Aug 2024–Jul 2025.
5	Northrop Grumman Systems Corporation 3 awardees Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$5,492,266	4.7%	Rank history: #30 in FY2021, #67 in FY2022, not on the FY2023 list, #55 in FY2024 and #18 in FY2025; up 12 since Aug 2024–Jul 2025.
6	S & K Aerospace, LLC Top agencies Navy (Department of the Navy)	$4,025,509	3.4%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
7	H C Merchandisers, Inc. Top agencies DLA (Defense Logistics Agency)	$3,015,873	2.6%	Rank history: #8 in FY2021, #10 in FY2022, #29 in FY2023, #18 in FY2024 and not on the FY2025 list; up 33 since Aug 2024–Jul 2025.
8	Parker-Hannifin Corporation 3 awardees, including Meggitt (Orange County), Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$2,943,684	2.5%	Rank history: #2 in FY2021, #2 in FY2022, #3 in FY2023, #9 in FY2024 and #9 in FY2025; up 1 since Aug 2024–Jul 2025.
9	AAR Corp. Through AAR Supply Chain, Inc. Top agencies DLA (Defense Logistics Agency)	$2,459,929	2.1%	Rank history: not on the FY2021–FY2023 lists, #5 in FY2024 and #7 in FY2025; down 7 since Aug 2024–Jul 2025.
10	Heico Corp 2 awardees, including Pioneer Industries, LLC and Blue Aerospace LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$2,423,252	2.1%	Rank history: not on the FY2021–FY2024 lists and #26 in FY2025; up 45 since Aug 2024–Jul 2025.
11	TNL Sales LLC Top agencies DLA (Defense Logistics Agency)	$2,240,290	1.9%	Rank history: #21 in FY2021, #18 in FY2022, #22 in FY2023, #8 in FY2024 and #17 in FY2025; up 4 since Aug 2024–Jul 2025.
12	GMS International Corporation Top agencies DLA (Defense Logistics Agency)	$2,205,714	1.9%	Rank history: #13 in FY2021, #12 in FY2022, #17 in FY2023, #17 in FY2024 and #13 in FY2025; unchanged since Aug 2024–Jul 2025.
13	Transaero, Inc. Top agencies DLA (Defense Logistics Agency)	$2,168,699	1.8%	Rank history: #20 in FY2021, #4 in FY2022, #7 in FY2023, #4 in FY2024 and #5 in FY2025; down 8 since Aug 2024–Jul 2025.
14	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$2,161,077	1.8%	Rank history: #10 in FY2021, #7 in FY2022, #14 in FY2023, #19 in FY2024 and #12 in FY2025; down 1 since Aug 2024–Jul 2025.
15	Martin Military Inc. Top agencies DLA (Defense Logistics Agency)	$2,099,422	1.8%	Rank history: #7 in FY2021, #6 in FY2022, #4 in FY2023, #6 in FY2024 and #16 in FY2025; up 1 since Aug 2024–Jul 2025.
16	Cox & Company, Inc. Through Prime Technology LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,851,078	1.6%	Rank history: not on the FY2021–FY2024 lists and #53 in FY2025; new, not ranked in Aug 2024–Jul 2025.
17	Bauer, Inc. Top agencies USAF (Department of the Air Force)	$1,798,370	1.5%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
18	Brodie Meter Co., LLC Top agencies DLA (Defense Logistics Agency)	$1,638,780	1.4%	Rank history: not on the FY2021 list, #43 in FY2022, #44 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
19	Nag, LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,538,130	1.3%	Rank history: #17 in FY2021, #16 in FY2022, #16 in FY2023, #27 in FY2024 and #6 in FY2025; down 11 since Aug 2024–Jul 2025.
20	Analytical Science and Technologies Group Inc. Top agencies DLA (Defense Logistics Agency)	$1,482,510	1.3%	Rank history: not on the FY2021–FY2024 lists and #15 in FY2025; new, not ranked in Aug 2024–Jul 2025.
21	Triman Industries Inc. Top agencies DLA (Defense Logistics Agency)	$1,462,314	1.2%	Rank history: #60 in FY2021, #27 in FY2022, #84 in FY2023, #41 in FY2024 and #36 in FY2025; up 15 since Aug 2024–Jul 2025.
22	Jgils, LLC Top agencies DLA (Defense Logistics Agency)	$1,422,857	1.2%	Rank history: not on the FY2021 list, #64 in FY2022, #79 in FY2023, #76 in FY2024 and #75 in FY2025; up 72 since Aug 2024–Jul 2025.
23	Tactair Fluid Controls Inc Through Transicoil LLC Top agencies DLA (Defense Logistics Agency)	$1,217,988	1.0%	Rank history: not on the FY2021–FY2023 lists, #88 in FY2024 and not on the FY2025 list; up 77 since Aug 2024–Jul 2025.
24	Rockwell Automation, Inc. Through Sensia LLC Top agencies Navy (Department of the Navy)	$1,158,350	1.0%	Rank history: not on the FY2021–FY2024 lists and #24 in FY2025; new, not ranked in Aug 2024–Jul 2025.
25	The Entwistle Company LLC Top agencies DLA (Defense Logistics Agency)	$910,815	0.8%	Rank history: not on the FY2021–FY2024 lists and #30 in FY2025; up 3 since Aug 2024–Jul 2025.
26	Integrated Procurement Technologies Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$845,804	0.7%	Rank history: #18 in FY2021, not on the FY2022–FY2024 lists and #4 in FY2025; new, not ranked in Aug 2024–Jul 2025.
27	Dela Technology Corporation Top agencies DLA (Defense Logistics Agency)	$835,851	0.7%	Rank history: not on the FY2021–FY2022 lists, #36 in FY2023, #75 in FY2024 and #86 in FY2025; up 101 since Aug 2024–Jul 2025.
28	ECI Defense Group, Inc. Top agencies DLA (Defense Logistics Agency)	$834,353	0.7%	Rank history: not on the FY2021–FY2024 lists and #68 in FY2025; up 41 since Aug 2024–Jul 2025.
29	Larkos Packing and Distribution Inc. Top agencies DLA (Defense Logistics Agency)	$793,167	0.7%	Rank history: #93 in FY2021, #57 in FY2022, #67 in FY2023, #32 in FY2024 and #23 in FY2025; down 8 since Aug 2024–Jul 2025.
30	Ontic Engineering and Manufacturing Inc. 3 awardees, including Ontic Engineering & Manufacturing UK Limited Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force) Navy (Department of the Navy)	$788,153	0.7%	Rank history: not on the FY2021–FY2024 lists and #74 in FY2025; up 53 since Aug 2024–Jul 2025.
31	Illinois Tool Works Inc. 2 awardees, including Brooks Instrument LLC and PCB Piezotronics of North Carolina, Inc. Top agencies Navy (Department of the Navy)	$777,287	0.7%	Rank history: not on the FY2021–FY2023 lists, #63 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
32	R P M Supply Corporation Top agencies DLA (Defense Logistics Agency)	$709,282	0.6%	Rank history: not on the FY2021 list, #56 in FY2022, not on the FY2023–FY2024 lists and #41 in FY2025; up 36 since Aug 2024–Jul 2025.
33	Rocktronics Inc. Top agencies Navy (Department of the Navy)	$694,921	0.6%	Rank history: not on the FY2021–FY2022 lists, #21 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
34	Honeywell International Inc. 2 awardees Top agencies DLA (Defense Logistics Agency)	$680,213	0.6%	Rank history: not on the FY2021 list, #21 in FY2022, #26 in FY2023, #37 in FY2024 and #22 in FY2025; down 10 since Aug 2024–Jul 2025.
35	Par Defense Industries, LLC Top agencies DLA (Defense Logistics Agency)	$669,011	0.6%	Rank history: not on the FY2021–FY2024 lists and #76 in FY2025; up 36 since Aug 2024–Jul 2025.
36	RIX Industries Top agencies Navy (Department of the Navy)	$645,234	0.5%	Rank history: #4 in FY2021 and not on the FY2022–FY2025 lists; up 234 since Aug 2024–Jul 2025.
37	S I T Corporation Top agencies DLA (Defense Logistics Agency)	$593,368	0.5%	Rank history: #19 in FY2021, #19 in FY2022, #78 in FY2023, #36 in FY2024 and #29 in FY2025; down 11 since Aug 2024–Jul 2025.
38	Marine Electric Systems Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$587,528	0.5%	Rank history: #33 in FY2021, #28 in FY2022, #19 in FY2023, #38 in FY2024 and #19 in FY2025; down 15 since Aug 2024–Jul 2025.
39	Dynalec Corporation Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$585,159	0.5%	Rank history: not on the FY2021–FY2022 lists, #46 in FY2023, #52 in FY2024 and #25 in FY2025; down 19 since Aug 2024–Jul 2025.
40	Lektron Inc. Top agencies DLA (Defense Logistics Agency)	$576,097	0.5%	Rank history: not on the FY2021–FY2025 lists; up 198 since Aug 2024–Jul 2025.
41	Technical Communities, Inc. Top agencies DOI (Department of the Interior) USAF (Department of the Air Force)	$574,553	0.5%	Rank history: not on the FY2021–FY2024 lists and #62 in FY2025; new, not ranked in Aug 2024–Jul 2025.
42	Cavanaugh Government Group, LLC Top agencies DLA (Defense Logistics Agency)	$559,157	0.5%	Rank history: not on the FY2021–FY2024 lists and #32 in FY2025; down 11 since Aug 2024–Jul 2025.
43	Seiler Instrument and Manufacturing Company, Incorporated Top agencies DLA (Defense Logistics Agency)	$510,814	0.4%	Rank history: #73 in FY2021 and not on the FY2022–FY2025 lists; up 97 since Aug 2024–Jul 2025.
44	Boneal, Incorporated Top agencies USAF (Department of the Air Force)	$508,374	0.4%	Rank history: not on the FY2021–FY2023 lists, #95 in FY2024 and not on the FY2025 list; up 119 since Aug 2024–Jul 2025.
45	Eaton Corporation Public Limited Company Through Eaton Aerospace LLC Top agencies DLA (Defense Logistics Agency)	$490,592	0.4%	Rank history: not on the FY2021 list, #8 in FY2022, #45 in FY2023, #28 in FY2024 and #21 in FY2025; down 31 since Aug 2024–Jul 2025.
46	Sensaras, LLC Top agencies Navy (Department of the Navy)	$489,585	0.4%	Rank history: not on the FY2021–FY2023 lists, #15 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
47	Blue Group LLC Top agencies DLA (Defense Logistics Agency)	$475,000	0.4%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
48	Fed Crew Inc. Top agencies DOT (Department of Transportation) DOI (Department of the Interior)	$473,034	0.4%	Rank history: not on the FY2021–FY2024 lists and #38 in FY2025; up 161 since Aug 2024–Jul 2025.
49	The Boeing Company 2 awardees, including Boeing Distribution Services X, Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$466,829	0.4%	Rank history: #61 in FY2021 and not on the FY2022–FY2025 lists; up 68 since Aug 2024–Jul 2025.
50	Carp Industries Corp Top agencies DLA (Defense Logistics Agency)	$464,437	0.4%	Rank history: not on the FY2021–FY2024 lists and #33 in FY2025; down 18 since Aug 2024–Jul 2025.
51	Erdco Engineering Corporation Top agencies DLA (Defense Logistics Agency)	$444,747	0.4%	Rank history: #45 in FY2021, #54 in FY2022, #87 in FY2023, #39 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
52	Supplycore LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$427,736	0.4%	Rank history: not on the FY2021–FY2024 lists and #42 in FY2025; up 370 since Aug 2024–Jul 2025.
53	Arctic Slope Regional Corporation 2 awardees, including Asrc Federal Facilities Logistics LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$402,554	0.3%	Rank history: not on the FY2021–FY2024 lists and #52 in FY2025; up 355 since Aug 2024–Jul 2025.
54	Becton, Dickinson and Co Top agencies USDA (Department of Agriculture)	$398,370	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
55	Janels Industries Inc. Top agencies DLA (Defense Logistics Agency)	$393,057	0.3%	Rank history: #75 in FY2021, #35 in FY2022, #20 in FY2023, #50 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
56	Hoosier Industrial Supply, Inc. Top agencies DLA (Defense Logistics Agency)	$370,995	0.3%	Rank history: not on the FY2021 list, #51 in FY2022, not on the FY2023–FY2024 lists and #71 in FY2025; up 45 since Aug 2024–Jul 2025.
57	Windward Enterprises, LLC Top agencies DLA (Defense Logistics Agency)	$367,847	0.3%	Rank history: not on the FY2021 list, #77 in FY2022, #53 in FY2023, #91 in FY2024 and #50 in FY2025; up 33 since Aug 2024–Jul 2025.
58	FBC Enterprises LLC Top agencies DLA (Defense Logistics Agency)	$357,387	0.3%	Rank history: not on the FY2021–FY2022 lists, #66 in FY2023, #34 in FY2024 and #66 in FY2025; down 24 since Aug 2024–Jul 2025.
59	SSI Technology Inc. Top agencies DLA (Defense Logistics Agency)	$306,045	0.3%	Rank history: #27 in FY2021, #63 in FY2022, #15 in FY2023, #24 in FY2024 and #43 in FY2025; down 15 since Aug 2024–Jul 2025.
60	Setra Systems, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$300,159	0.3%	Rank history: not on the FY2021–FY2024 lists and #67 in FY2025; new, not ranked in Aug 2024–Jul 2025.
61	CFM International Inc. Top agencies USAF (Department of the Air Force)	$298,590	0.3%	Rank history: not on the FY2021–FY2023 lists, #3 in FY2024 and #10 in FY2025; down 55 since Aug 2024–Jul 2025.
62	Hydraulics International, Inc. Top agencies DLA (Defense Logistics Agency)	$298,399	0.3%	Rank history: #88 in FY2021, #81 in FY2022, #64 in FY2023, #59 in FY2024 and #58 in FY2025; up 2 since Aug 2024–Jul 2025.
63	Ruta Supplies Inc. Top agencies DLA (Defense Logistics Agency)	$291,862	0.2%	Rank history: not on the FY2021 list, #60 in FY2022, #56 in FY2023, #13 in FY2024 and #47 in FY2025; down 14 since Aug 2024–Jul 2025.
64	Melton Sales & Service Top agencies DLA (Defense Logistics Agency)	$291,201	0.2%	Rank history: not on the FY2021–FY2023 lists, #53 in FY2024 and not on the FY2025 list; up 10 since Aug 2024–Jul 2025.
65	Mechanical & Automation Solutions LLC Top agencies IBWC (International Boundary and Water Commission U.S.-Mexico)	$289,360	0.2%	Rank history: not on the FY2021–FY2024 lists and #72 in FY2025; new, not ranked in Aug 2024–Jul 2025.
66	Jo-Kell Inc. Top agencies DLA (Defense Logistics Agency)	$288,112	0.2%	Rank history: not on the FY2021–FY2022 lists, #85 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
67	W S Darley & Co Top agencies Navy (Department of the Navy)	$280,900	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
68	Burhani Enterprises Inc. Top agencies DLA (Defense Logistics Agency)	$275,940	0.2%	Rank history: not on the FY2021–FY2022 lists, #49 in FY2023 and not on the FY2024–FY2025 lists; up 81 since Aug 2024–Jul 2025.
69	Aviarms Support Corp Top agencies DLA (Defense Logistics Agency)	$262,476	0.2%	Rank history: not on the FY2021–FY2024 lists and #44 in FY2025; down 21 since Aug 2024–Jul 2025.
70	Granzow, Inc. Top agencies DLA (Defense Logistics Agency)	$252,618	0.2%	Rank history: not on the FY2021–FY2024 lists and #92 in FY2025; up 23 since Aug 2024–Jul 2025.
71	Cepeda Associates, Inc. Top agencies DLA (Defense Logistics Agency)	$252,294	0.2%	Rank history: not on the FY2021–FY2025 lists; up 65 since Aug 2024–Jul 2025.
72	Ronal Industries, Inc. Top agencies DLA (Defense Logistics Agency)	$250,601	0.2%	Rank history: not on the FY2021–FY2024 lists and #77 in FY2025; new, not ranked in Aug 2024–Jul 2025.
73	Parts Life Inc. Top agencies DLA (Defense Logistics Agency)	$249,698	0.2%	Rank history: #95 in FY2021, not on the FY2022–FY2024 lists and #78 in FY2025; new, not ranked in Aug 2024–Jul 2025.
74	Global Logistics Strategies Inc. Top agencies DLA (Defense Logistics Agency)	$248,919	0.2%	Rank history: #34 in FY2021, #100 in FY2022, #58 in FY2023, #7 in FY2024 and #20 in FY2025; down 63 since Aug 2024–Jul 2025.
75	BBP Sales, LLC Top agencies DOI (Department of the Interior)	$235,305	0.2%	Rank history: not on the FY2021–FY2024 lists and #80 in FY2025; new, not ranked in Aug 2024–Jul 2025.
76	Argo Turboserve Corporation Top agencies DLA (Defense Logistics Agency)	$226,748	0.2%	Rank history: not on the FY2021–FY2023 lists, #81 in FY2024 and #51 in FY2025; down 24 since Aug 2024–Jul 2025.
77	Columbia Research Laboratories, Inc. Top agencies DLA (Defense Logistics Agency)	$221,416	0.2%	Rank history: not on the FY2021–FY2023 lists, #98 in FY2024 and not on the FY2025 list; up 92 since Aug 2024–Jul 2025.
78	Johnson Controls Federal Systems, LLC Through Johnson Controls Navy Systems, LLC Top agencies DLA (Defense Logistics Agency)	$221,065	0.2%	Rank history: not on the FY2021–FY2024 lists and #55 in FY2025; new, not ranked in Aug 2024–Jul 2025.
79	Powerjet Parts Inc. Top agencies DLA (Defense Logistics Agency)	$217,935	0.2%	Rank history: #94 in FY2021, #86 in FY2022, #47 in FY2023, #35 in FY2024 and #70 in FY2025; down 17 since Aug 2024–Jul 2025.
80	Allied Defense Industries, LLC Top agencies DLA (Defense Logistics Agency)	$215,586	0.2%	Rank history: not on the FY2021–FY2024 lists and #73 in FY2025; up 23 since Aug 2024–Jul 2025.
81	Integral Aerospace, LLC Top agencies DLA (Defense Logistics Agency)	$211,701	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
82	J.G.B. Enterprises Inc. Through Echelon Supply and Service, Inc. Top agencies DLA (Defense Logistics Agency)	$211,385	0.2%	Rank history: not on the FY2021–FY2025 lists; up 14 since Aug 2024–Jul 2025.
83	Diagnostic Solutions International LLC Top agencies DLA (Defense Logistics Agency)	$204,243	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
84	Schweitzer Engineering Laboratories Inc. Top agencies DOI (Department of the Interior)	$187,584	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
85	Painter Tool Incorporated Top agencies Navy (Department of the Navy)	$181,326	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
86	OTT Hydromet Corp Top agencies DOI (Department of the Interior)	$179,625	0.2%	Rank history: not on the FY2021–FY2025 lists; up 64 since Aug 2024–Jul 2025.
87	General Electric Company 3 awardees, including Druck, LLC and GE Engine Services Distribution, L.L.C. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$177,890	0.2%	Rank history: #38 in FY2021, not on the FY2022 list, #75 in FY2023, #40 in FY2024 and #90 in FY2025; down 24 since Aug 2024–Jul 2025.
88	Aerocontrolex Group, Inc. Top agencies DLA (Defense Logistics Agency)	$176,300	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
89	Dumbo Defense Inc. Top agencies DLA (Defense Logistics Agency)	$161,790	0.1%	Rank history: not on the FY2021–FY2025 lists; up 37 since Aug 2024–Jul 2025.
90	BMC Software Inc. Through Leslie Controls, Inc. Top agencies DLA (Defense Logistics Agency)	$159,045	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
91	Rev-Cap Company, Inc. Top agencies DLA (Defense Logistics Agency)	$158,728	0.1%	Rank history: not on the FY2021–FY2023 lists, #89 in FY2024 and not on the FY2025 list; up 120 since Aug 2024–Jul 2025.
92	Baker Fencing Solutions Inc. Top agencies DLA (Defense Logistics Agency)	$155,200	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
93	Clark Brothers Instrument Co Top agencies DLA (Defense Logistics Agency)	$154,911	0.1%	Rank history: #42 in FY2021, #85 in FY2022, #77 in FY2023, #85 in FY2024 and #49 in FY2025; down 40 since Aug 2024–Jul 2025.
94	Davilyn Corporation Top agencies DLA (Defense Logistics Agency)	$151,500	0.1%	Rank history: not on the FY2021–FY2024 lists and #99 in FY2025; new, not ranked in Aug 2024–Jul 2025.
95	Phaostron Instrument and Electronic Company Top agencies DLA (Defense Logistics Agency)	$149,874	0.1%	Rank history: not on the FY2021–FY2025 lists; up 126 since Aug 2024–Jul 2025.
96	Anton Paar USA Inc. Top agencies USAF (Department of the Air Force)	$147,958	0.1%	Rank history: not on the FY2021–FY2024 lists and #100 in FY2025; new, not ranked in Aug 2024–Jul 2025.
97	Chase Supply, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$141,096	0.1%	Rank history: not on the FY2021–FY2025 lists; up 60 since Aug 2024–Jul 2025.
98	JA Moody LLC Top agencies DLA (Defense Logistics Agency)	$136,414	0.1%	Rank history: not on the FY2021–FY2024 lists and #96 in FY2025; up 15 since Aug 2024–Jul 2025.
99	Dynamic Sealing Technologies LLC Top agencies Army (Department of the Army)	$127,300	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
100	Brown Helicopter, Inc. Top agencies DLA (Defense Logistics Agency)	$121,694	0.1%	Rank history: not on the FY2021–FY2023 lists, #92 in FY2024 and #45 in FY2025; down 53 since Aug 2024–Jul 2025.

Show 75 more

100 of 405 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 $118 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 6680 contractors in Aug 2025–Jul 2026?

1. Standard Calibrations Inc. ($9.04M), 2. RTX Corporation ($8.9M), 3. Heidelberg Resources, LLC ($5.84M), 4. BEI Precision Systems & Space Company, Inc. ($5.61M), 5. Northrop Grumman Systems Corporation ($5.49M), 6. S & K Aerospace, LLC ($4.03M), 7. H C Merchandisers, Inc. ($3.02M), 8. Parker-Hannifin Corporation ($2.94M), 9. AAR Corp. ($2.46M), 10. Heico Corp ($2.42M).

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