Top 100 Contractors in PSC 1660: Aircraft Air Conditioning, Heating, and Pressurizing Equipment, Aug 2025–Jul 2026

Name: Top 100 Contractors in PSC 1660: Aircraft Air Conditioning, Heating, and Pressurizing Equipment, 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 1660: Aircraft Air Conditioning, Heating, and Pressurizing Equipment, FY2025.

The top 10 won 66% of PSC 1660 contract dollars from August 2025 through July 2026

Contract obligations: $215,066,326 Net of deobligations, by contracts coded PSC 1660
Contractors: 249 Parent companies with an obligation
Largest contractor: RTX Corporation $22.4 million, 9.6% 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	RTX Corporation 7 awardees, including Hamilton Sundstrand Corporation and Raytheon Company Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$22,376,111	9.6%	Rank history: #2 in FY2021, #2 in FY2022, #5 in FY2023, #1 in FY2024 and #4 in FY2025; unchanged since Aug 2024–Jul 2025.
2	ECI Defense Group, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$22,132,694	9.5%	Rank history: #5 in FY2021, #4 in FY2022, #2 in FY2023, #4 in FY2024 and #2 in FY2025; up 2 since Aug 2024–Jul 2025.
3	The Boeing Company 7 awardees, including Boeing Distribution Services X, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$20,026,084	8.6%	Rank history: #9 in FY2021, #12 in FY2022, #17 in FY2023, #7 in FY2024 and #6 in FY2025; up 6 since Aug 2024–Jul 2025.
4	Honeywell International Inc. 6 awardees Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$19,751,776	8.5%	Rank history: #4 in FY2021, #1 in FY2022, #4 in FY2023, #2 in FY2024 and #1 in FY2025; down 1 since Aug 2024–Jul 2025.
5	Aero International, LLC Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$18,207,763	7.8%	Rank history: not on the FY2021–FY2023 lists, #16 in FY2024 and #13 in FY2025; up 8 since Aug 2024–Jul 2025.
6	Atlantic Diving Supply, Inc. Top agencies DLA (Defense Logistics Agency)	$13,881,336	6.0%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
7	SAFRAN 2 awardees, including Avox Systems Inc. and Safran Aerosystems Services Americas, LLC Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security) Navy (Department of the Navy)	$12,922,939	5.6%	Rank history: #3 in FY2021, #7 in FY2022, #7 in FY2023, #5 in FY2024 and #3 in FY2025; down 5 since Aug 2024–Jul 2025.
8	Lockheed Martin Corporation 6 awardees, including Sikorsky Aircraft Corporation and Derco Aerospace, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$8,951,560	3.8%	Rank history: #6 in FY2021, #8 in FY2022, #6 in FY2023, #8 in FY2024 and #12 in FY2025; up 6 since Aug 2024–Jul 2025.
9	Essex Industries Inc. 4 awardees Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$8,212,328	3.5%	Rank history: #1 in FY2021, #3 in FY2022, #1 in FY2023, #3 in FY2024 and #9 in FY2025; up 3 since Aug 2024–Jul 2025.
10	Gentex Corporation Top agencies DLA (Defense Logistics Agency)	$7,781,468	3.3%	Rank history: not on the FY2021 list, #6 in FY2022, #8 in FY2023, #6 in FY2024 and #5 in FY2025; new, not ranked in Aug 2024–Jul 2025.
11	Eaton Corporation Public Limited Company Through Mission Systems Davenport Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$7,255,055	3.1%	Rank history: not on the FY2021–FY2024 lists and #39 in FY2025; new, not ranked in Aug 2024–Jul 2025.
12	Parker-Hannifin Corporation 6 awardees, including Meggitt North Hollywood Inc. and Pacific Scientific Company Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$3,856,729	1.7%	Rank history: #70 in FY2021, #42 in FY2022, #66 in FY2023, #32 in FY2024 and #7 in FY2025; down 5 since Aug 2024–Jul 2025.
13	S3 Aerodefense LLC Top agencies DLA (Defense Logistics Agency)	$3,347,767	1.4%	Rank history: not on the FY2021–FY2023 lists, #14 in FY2024 and #16 in FY2025; up 2 since Aug 2024–Jul 2025.
14	LCF Systems, Inc. Top agencies DLA (Defense Logistics Agency)	$2,573,323	1.1%	Rank history: not on the FY2021–FY2022 lists, #99 in FY2023, #24 in FY2024 and #22 in FY2025; up 11 since Aug 2024–Jul 2025.
15	Heico Corp 5 awardees, including Sherwood Avionics and Accessories, Inc., Seal Dynamics LLC and Aerospace & Commercial Technologies, LLC Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security) USAF (Department of the Air Force)	$2,289,006	1.0%	Rank history: #15 in FY2021, #25 in FY2022, #13 in FY2023, #18 in FY2024 and #11 in FY2025; up 6 since Aug 2024–Jul 2025.
16	Rolls-Royce Corporation Through Rolls-Royce Solutions America Inc. Top agencies Navy (Department of the Navy)	$2,135,029	0.9%	Rank history: not on the FY2021–FY2023 lists, #42 in FY2024 and #14 in FY2025; up 10 since Aug 2024–Jul 2025.
17	Corgistics, Inc. Top agencies DLA (Defense Logistics Agency)	$1,859,551	0.8%	Rank history: #39 in FY2021, #77 in FY2022, #75 in FY2023, #93 in FY2024 and #19 in FY2025; up 3 since Aug 2024–Jul 2025.
18	Limco-Piedmont Inc. Through Limco Airepair Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,710,808	0.7%	Rank history: not on the FY2021–FY2024 lists and #29 in FY2025; up 40 since Aug 2024–Jul 2025.
19	Falcon Aero Manufacturing, LLC Top agencies DLA (Defense Logistics Agency)	$1,439,910	0.6%	Rank history: not on the FY2021 list, #11 in FY2022, not on the FY2023 list, #13 in FY2024 and #17 in FY2025; unchanged since Aug 2024–Jul 2025.
20	A.j. Associates Manufacturing & Engineering Co. Inc. Top agencies DLA (Defense Logistics Agency)	$1,414,055	0.6%	Rank history: not on the FY2021–FY2023 lists, #33 in FY2024 and #46 in FY2025; up 104 since Aug 2024–Jul 2025.
21	Aerometals, Inc. Top agencies DLA (Defense Logistics Agency)	$1,381,769	0.6%	Rank history: #7 in FY2021, #15 in FY2022, #14 in FY2023, #11 in FY2024 and #10 in FY2025; down 10 since Aug 2024–Jul 2025.
22	Ametek Inc. 4 awardees, including Ametek Thermal Systems Inc., Drake Air, Inc. and Ametek Ameron, LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$1,380,653	0.6%	Rank history: #36 in FY2021, #30 in FY2022, #3 in FY2023, #46 in FY2024 and #54 in FY2025; new, not ranked in Aug 2024–Jul 2025.
23	Arctic Slope Regional Corporation Through Asrc Federal Facilities Logistics LLC Top agencies DLA (Defense Logistics Agency)	$1,379,293	0.6%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
24	Wall Colmonoy Corp Top agencies USAF (Department of the Air Force)	$1,365,892	0.6%	Rank history: not on the FY2021–FY2022 lists, #22 in FY2023, #12 in FY2024 and #30 in FY2025; up 13 since Aug 2024–Jul 2025.
25	Aerokool Aviation Corp Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$1,337,763	0.6%	Rank history: not on the FY2021–FY2024 lists and #18 in FY2025; down 7 since Aug 2024–Jul 2025.
26	Bell Boeing Joint Project Office Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,225,306	0.5%	Rank history: #52 in FY2021, #33 in FY2022, #26 in FY2023, #23 in FY2024 and #36 in FY2025; up 13 since Aug 2024–Jul 2025.
27	Boone Aerospace, Inc. Top agencies DLA (Defense Logistics Agency)	$1,180,769	0.5%	Rank history: not on the FY2021–FY2023 lists, #92 in FY2024 and #25 in FY2025; up 1 since Aug 2024–Jul 2025.
28	Lobo Ventures Ltd Top agencies DLA (Defense Logistics Agency)	$1,043,447	0.4%	Rank history: #84 in FY2021, #21 in FY2022, #38 in FY2023, #40 in FY2024 and #15 in FY2025; down 12 since Aug 2024–Jul 2025.
29	The Handy Tool & Mfg. Co., Inc. Top agencies DLA (Defense Logistics Agency)	$1,036,300	0.4%	Rank history: #26 in FY2021, #24 in FY2022, #29 in FY2023, #38 in FY2024 and #27 in FY2025; up 4 since Aug 2024–Jul 2025.
30	United Dynamics, Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$1,024,496	0.4%	Rank history: #21 in FY2021, #20 in FY2022, #32 in FY2023, #20 in FY2024 and #34 in FY2025; up 5 since Aug 2024–Jul 2025.
31	Aeroforce Logistics LLC Top agencies DLA (Defense Logistics Agency)	$997,863	0.4%	Rank history: not on the FY2021–FY2023 lists, #51 in FY2024 and #28 in FY2025; up 3 since Aug 2024–Jul 2025.
32	FBC Enterprises LLC Top agencies DLA (Defense Logistics Agency)	$871,270	0.4%	Rank history: not on the FY2021 list, #50 in FY2022, #24 in FY2023, #17 in FY2024 and #24 in FY2025; down 3 since Aug 2024–Jul 2025.
33	Aerocorex LLC Top agencies USAF (Department of the Air Force)	$847,724	0.4%	Rank history: not on the FY2021–FY2022 lists, #92 in FY2023, #26 in FY2024 and #23 in FY2025; down 11 since Aug 2024–Jul 2025.
34	RU Enterprises, Inc. Top agencies DLA (Defense Logistics Agency)	$820,675	0.4%	Rank history: #38 in FY2021, #28 in FY2022, not on the FY2023 list, #50 in FY2024 and #32 in FY2025; down 4 since Aug 2024–Jul 2025.
35	Fluid Power, Inc. Top agencies DLA (Defense Logistics Agency)	$750,831	0.3%	Rank history: #27 in FY2021, #26 in FY2022, #42 in FY2023, #69 in FY2024 and #33 in FY2025; up 5 since Aug 2024–Jul 2025.
36	Aeromed Group, LLC 2 awardees, including Norcatec LLC Top agencies DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$717,542	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
37	Moog Inc. Top agencies DLA (Defense Logistics Agency)	$701,435	0.3%	Rank history: #20 in FY2021, #19 in FY2022, #21 in FY2023, #22 in FY2024 and #21 in FY2025; new, not ranked in Aug 2024–Jul 2025.
38	Grimes Aerospace Company 4 awardees, including Honeywell International, Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$633,220	0.3%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
39	Triumph Group Inc. Through Triumph Thermal Systems, LLC Top agencies USAF (Department of the Air Force)	$559,836	0.2%	Rank history: not on the FY2021–FY2023 lists, #21 in FY2024 and #45 in FY2025; new, not ranked in Aug 2024–Jul 2025.
40	Safetech Usa, Inc. Top agencies Navy (Department of the Navy)	$491,750	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
41	Maven Engineering Corporation Top agencies DLA (Defense Logistics Agency)	$478,295	0.2%	Rank history: not on the FY2021–FY2022 lists, #59 in FY2023, #94 in FY2024 and not on the FY2025 list; up 105 since Aug 2024–Jul 2025.
42	Aero Precision Industries LLC Through Allclear Aerospace & Defense, Inc. Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$458,761	0.2%	Rank history: #12 in FY2021, #14 in FY2022, #28 in FY2023, #65 in FY2024 and #31 in FY2025; new, not ranked in Aug 2024–Jul 2025.
43	Safran Power USA LLC Through Safran Aerosystems Services Americas LLC Top agencies DHS (Department of Homeland Security)	$456,119	0.2%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
44	Apex Pinnacle Corp Top agencies DLA (Defense Logistics Agency)	$438,329	0.2%	Rank history: not on the FY2021–FY2024 lists and #82 in FY2025; up 47 since Aug 2024–Jul 2025.
45	Northrop Grumman Systems Corporation 4 awardees Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$436,400	0.2%	Rank history: #11 in FY2021, not on the FY2022 list, #11 in FY2023, #19 in FY2024 and #37 in FY2025; up 4 since Aug 2024–Jul 2025.
46	FDH Defense Aftermarket, LLC Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$425,211	0.2%	Rank history: #32 in FY2021, #58 in FY2022, #35 in FY2023, #36 in FY2024 and #38 in FY2025; down 1 since Aug 2024–Jul 2025.
47	Janels Industries Inc. Top agencies DLA (Defense Logistics Agency)	$407,711	0.2%	Rank history: #69 in FY2021, not on the FY2022 list, #56 in FY2023, not on the FY2024 list and #51 in FY2025; up 12 since Aug 2024–Jul 2025.
48	MDF Technologies Inc. Top agencies DLA (Defense Logistics Agency)	$362,198	0.2%	Rank history: not on the FY2021–FY2022 lists, #87 in FY2023, not on the FY2024 list and #63 in FY2025; up 25 since Aug 2024–Jul 2025.
49	The Glenmark Group LLC Top agencies DHS (Department of Homeland Security)	$358,004	0.2%	Rank history: #83 in FY2021, #86 in FY2022, #68 in FY2023, #86 in FY2024 and #52 in FY2025; up 25 since Aug 2024–Jul 2025.
50	General Electric Company Through GE Aviation Systems LLC Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$345,287	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
51	VC Displays, Inc. Top agencies DLA (Defense Logistics Agency)	$344,956	0.1%	Rank history: not on the FY2021 list, #40 in FY2022, not on the FY2023–FY2024 lists and #40 in FY2025; down 7 since Aug 2024–Jul 2025.
52	Hurlen Corporation Top agencies DLA (Defense Logistics Agency)	$320,400	0.1%	Rank history: not on the FY2021–FY2024 lists and #89 in FY2025; up 42 since Aug 2024–Jul 2025.
53	Black Bay Aerospace LLC Top agencies DLA (Defense Logistics Agency)	$312,387	0.1%	Rank history: not on the FY2021–FY2025 lists; up 129 since Aug 2024–Jul 2025.
54	Dutch Valley Supply Co. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$275,472	0.1%	Rank history: not on the FY2021–FY2024 lists and #47 in FY2025; up 18 since Aug 2024–Jul 2025.
55	Great Lakes Sound & Vibration Inc. Top agencies DLA (Defense Logistics Agency)	$266,020	0.1%	Rank history: #60 in FY2021 and not on the FY2022–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
56	Bollinger Shipyards Lockport, L.L.C. Through Chand, L.L.C. Top agencies DLA (Defense Logistics Agency)	$264,177	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
57	Transaero, Inc. Top agencies DLA (Defense Logistics Agency)	$256,927	0.1%	Rank history: #16 in FY2021, #64 in FY2022, #34 in FY2023, not on the FY2024 list and #68 in FY2025; up 43 since Aug 2024–Jul 2025.
58	Mason Electric Co. Through Kirkhill, Inc. Top agencies DLA (Defense Logistics Agency)	$250,139	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
59	Brown Helicopter, Inc. Top agencies DLA (Defense Logistics Agency)	$237,503	0.1%	Rank history: #78 in FY2021, #44 in FY2022, #57 in FY2023, #73 in FY2024 and #35 in FY2025; down 23 since Aug 2024–Jul 2025.
60	Aero Space Composites LLC Top agencies DLA (Defense Logistics Agency)	$223,301	0.1%	Rank history: #48 in FY2021, #92 in FY2022, not on the FY2023 list, #91 in FY2024 and #67 in FY2025; up 19 since Aug 2024–Jul 2025.
61	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$221,694	0.1%	Rank history: not on the FY2021 list, #75 in FY2022 and not on the FY2023–FY2025 lists; up 156 since Aug 2024–Jul 2025.
62	Jamaica Bearings Co., Inc. Top agencies DLA (Defense Logistics Agency)	$220,813	0.1%	Rank history: #19 in FY2021, #36 in FY2022, #27 in FY2023, #44 in FY2024 and #41 in FY2025; down 21 since Aug 2024–Jul 2025.
63	S & K Logistics Services LLC Top agencies DLA (Defense Logistics Agency)	$220,232	0.1%	Rank history: not on the FY2021–FY2023 lists, #95 in FY2024 and #76 in FY2025; up 32 since Aug 2024–Jul 2025.
64	QPI Pro, Inc. Top agencies DLA (Defense Logistics Agency)	$209,456	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
65	Aviarms Support Corp Top agencies DLA (Defense Logistics Agency)	$208,954	0.1%	Rank history: #100 in FY2021, not on the FY2022 list, #89 in FY2023, #77 in FY2024 and not on the FY2025 list; up 54 since Aug 2024–Jul 2025.
66	Davilyn Corporation Top agencies DLA (Defense Logistics Agency)	$204,320	0.1%	Rank history: not on the FY2021–FY2025 lists; up 156 since Aug 2024–Jul 2025.
67	Ontic Engineering and Manufacturing Inc. Top agencies DLA (Defense Logistics Agency)	$202,007	0.1%	Rank history: not on the FY2021–FY2024 lists and #49 in FY2025; down 7 since Aug 2024–Jul 2025.
68	Rosebank Engineering PTY Ltd Top agencies Navy (Department of the Navy)	$200,239	0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
69	Lee Air Company, Inc. Top agencies DLA (Defense Logistics Agency)	$193,810	0.1%	Rank history: not on the FY2021–FY2024 lists and #65 in FY2025; up 65 since Aug 2024–Jul 2025.
70	Electro Parts Inc. Top agencies DLA (Defense Logistics Agency)	$191,880	0.1%	Rank history: not on the FY2021–FY2024 lists and #70 in FY2025; up 16 since Aug 2024–Jul 2025.
71	Aero Metal Forms Inc. Top agencies DLA (Defense Logistics Agency)	$189,481	0.1%	Rank history: not on the FY2021 list, #73 in FY2022, #19 in FY2023, #29 in FY2024 and #55 in FY2025; down 10 since Aug 2024–Jul 2025.
72	Secure Components, LLC Top agencies DLA (Defense Logistics Agency)	$179,056	0.1%	Rank history: not on the FY2021–FY2024 lists and #61 in FY2025; up 27 since Aug 2024–Jul 2025.
73	G.s.e. Dynamics, Inc. Top agencies DLA (Defense Logistics Agency)	$178,914	0.1%	Rank history: #49 in FY2021, #18 in FY2022, #43 in FY2023, #67 in FY2024 and #26 in FY2025; down 46 since Aug 2024–Jul 2025.
74	Integrated Procurement Technologies Top agencies DLA (Defense Logistics Agency)	$177,883	0.1%	Rank history: #42 in FY2021, #67 in FY2022, not on the FY2023–FY2024 lists and #86 in FY2025; new, not ranked in Aug 2024–Jul 2025.
75	Precision Air Inc Top agencies DLA (Defense Logistics Agency)	$167,297	0.1%	Rank history: not on the FY2021–FY2023 lists, #89 in FY2024 and #53 in FY2025; down 6 since Aug 2024–Jul 2025.
76	Tactair Fluid Controls Inc 2 awardees, including Champion Aerospace LLC Top agencies DLA (Defense Logistics Agency)	$165,704	0.1%	Rank history: not on the FY2021–FY2022 lists, #39 in FY2023, #48 in FY2024 and #92 in FY2025; up 40 since Aug 2024–Jul 2025.
77	Enigma Aerospace & Consulting L.L.C. Top agencies DLA (Defense Logistics Agency)	$158,693	0.1%	Rank history: not on the FY2021–FY2023 lists, #59 in FY2024 and #90 in FY2025; up 1 since Aug 2024–Jul 2025.
78	Hydro-Aire Aerospace Corp Top agencies DLA (Defense Logistics Agency)	$153,500	0.1%	Rank history: not on the FY2021–FY2024 lists and #81 in FY2025; up 12 since Aug 2024–Jul 2025.
79	Hupp & Associates Inc. Top agencies DLA (Defense Logistics Agency)	$142,924	0.1%	Rank history: not on the FY2021–FY2025 lists; up 115 since Aug 2024–Jul 2025.
80	Frazier Aviation Inc. Top agencies DLA (Defense Logistics Agency)	$138,528	0.1%	Rank history: not on the FY2021–FY2022 lists, #33 in FY2023, #72 in FY2024 and #71 in FY2025; up 3 since Aug 2024–Jul 2025.
81	Edel Engineering Development Co. Top agencies DLA (Defense Logistics Agency)	$126,398	0.1%	Rank history: not on the FY2021 list, #93 in FY2022, #49 in FY2023, #75 in FY2024 and #58 in FY2025; down 15 since Aug 2024–Jul 2025.
82	Legacy Product Support Llc. Top agencies DLA (Defense Logistics Agency)	$126,111	0.1%	Rank history: not on the FY2021–FY2025 lists; up 72 since Aug 2024–Jul 2025.
83	WKF (Friedman) Enterprises, Inc. Top agencies DLA (Defense Logistics Agency)	$120,850	0.1%	Rank history: #57 in FY2021, not on the FY2022–FY2024 lists and #69 in FY2025; up 27 since Aug 2024–Jul 2025.
84	Weckworth Manufacturing, Inc. Top agencies DLA (Defense Logistics Agency)	$119,714	0.1%	Rank history: #93 in FY2021, not on the FY2022 list, #60 in FY2023, not on the FY2024 list and #64 in FY2025; unchanged since Aug 2024–Jul 2025.
85	Aviation Defense Service Through Airbus DS Military Aircraft, Inc. Top agencies DHS (Department of Homeland Security)	$116,805	0.1%	Rank history: not on the FY2021–FY2025 lists; up 58 since Aug 2024–Jul 2025.
86	VSE Corporation Through VSE Aviation, Inc. Top agencies DLA (Defense Logistics Agency)	$114,481	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
87	Vecco Wichita, Inc. Top agencies DLA (Defense Logistics Agency)	$109,260	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
88	Senior Operations LLC Top agencies DLA (Defense Logistics Agency)	$109,230	<0.1%	Rank history: #75 in FY2021, not on the FY2022–FY2024 lists and #75 in FY2025; up 9 since Aug 2024–Jul 2025.
89	Bar Fields Inc. Top agencies DLA (Defense Logistics Agency)	$106,935	<0.1%	Rank history: #58 in FY2021, not on the FY2022 list, #83 in FY2023, #97 in FY2024 and not on the FY2025 list; new, not ranked in Aug 2024–Jul 2025.
90	Jgils, LLC Top agencies DLA (Defense Logistics Agency)	$103,427	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 169 since Aug 2024–Jul 2025.
91	Transdigm Inc. Top agencies DLA (Defense Logistics Agency)	$102,615	<0.1%	Rank history: not on the FY2021–FY2024 lists and #100 in FY2025; new, not ranked in Aug 2024–Jul 2025.
92	Textron Inc. Through Bell Textron Inc. Top agencies DLA (Defense Logistics Agency)	$101,083	<0.1%	Rank history: #72 in FY2021, #69 in FY2022 and not on the FY2023–FY2025 lists; up 14 since Aug 2024–Jul 2025.
93	Repairtech International, Inc. Top agencies USAF (Department of the Air Force)	$96,670	<0.1%	Rank history: #43 in FY2021, #35 in FY2022, not on the FY2023 list, #100 in FY2024 and #99 in FY2025; up 14 since Aug 2024–Jul 2025.
94	Marotta Controls Inc. Top agencies DLA (Defense Logistics Agency)	$94,682	<0.1%	Rank history: #88 in FY2021, #91 in FY2022, #62 in FY2023 and not on the FY2024–FY2025 lists; up 18 since Aug 2024–Jul 2025.
95	Drytech Inc. Top agencies DLA (Defense Logistics Agency)	$94,193	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 66 since Aug 2024–Jul 2025.
96	Maney Aircraft, Inc. Top agencies DLA (Defense Logistics Agency)	$92,500	<0.1%	Rank history: #90 in FY2021, not on the FY2022–FY2023 lists, #27 in FY2024 and #73 in FY2025; down 14 since Aug 2024–Jul 2025.
97	Rocker Solenoid Co Top agencies DLA (Defense Logistics Agency)	$90,759	<0.1%	Rank history: not on the FY2021–FY2024 lists and #50 in FY2025; down 41 since Aug 2024–Jul 2025.
98	AAR Corp. 2 awardees, including AAR Supply Chain, Inc. Top agencies DLA (Defense Logistics Agency)	$90,130	<0.1%	Rank history: not on the FY2021–FY2025 lists; new, not ranked in Aug 2024–Jul 2025.
99	Eltee Tool & Die LLC Top agencies DLA (Defense Logistics Agency)	$89,600	<0.1%	Rank history: not on the FY2021–FY2022 lists, #86 in FY2023, not on the FY2024 list and #74 in FY2025; down 19 since Aug 2024–Jul 2025.
100	Precision Metals Corp. Top agencies DLA (Defense Logistics Agency)	$88,150	<0.1%	Rank history: not on the FY2021–FY2025 lists; up 26 since Aug 2024–Jul 2025.

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100 of 249 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 $233 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 1660 contractors in Aug 2025–Jul 2026?

1. RTX Corporation ($22.4M), 2. ECI Defense Group, Inc. ($22.1M), 3. The Boeing Company ($20M), 4. Honeywell International Inc. ($19.8M), 5. Aero International, LLC ($18.2M), 6. Atlantic Diving Supply, Inc. ($13.9M), 7. SAFRAN ($12.9M), 8. Lockheed Martin Corporation ($8.95M), 9. Essex Industries Inc. ($8.21M), 10. Gentex Corporation ($7.78M).

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