Top 100 Contractors in PSC 17: Aerospace Craft Launching, Landing, Ground Handling and Servicing Equipment, FY2025

Name: Top 100 Contractors in PSC 17: Aerospace Craft Launching, Landing, Ground Handling and Servicing Equipment, FY2025
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2024 – Sep 30, 2025 Code page on GovTribe

The top 10 won 70% of FY2025 PSC 17 contract dollars

Contract obligations: $661,584,099 Net of deobligations, by contracts coded PSC 17 or a code under it
Contractors: 574 Parent companies with an obligation
Largest contractor: Diazyme Laboratories Inc. $298 million, 43.9% of obligations
Data as of: Oct 14, 2026

Contract actions from FPDS (SAM.gov). How the rankings work · Download all 100 rows as CSV

Full ranking

Rank	Contractor	Net obligations	Share	Trend
1	Diazyme Laboratories Inc. Through General Atomics Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$297,750,183	43.9%	Rank history: not on the FY2021–FY2023 lists and #1 in FY2024; unchanged since FY2024.
2	Sun Test Systems, Inc. Top agencies Army (Department of the Army)	$88,665,620	13.1%	Rank history: not on the FY2021–FY2024 lists; new.
3	Lockheed Martin Corporation 6 awardees, including Sikorsky Aircraft Corporation, Lockheed Martin Aeroparts, Inc. and Derco Aerospace, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$16,200,523	2.4%	Rank history: not on the FY2021–FY2022 lists, #12 in FY2023 and #42 in FY2024; up 39 since FY2024.
4	T Air Inc Through Global Ground Support, LLC Top agencies USAF (Department of the Air Force)	$15,118,516	2.2%	Rank history: not on the FY2021–FY2023 lists and #14 in FY2024; up 10 since FY2024.
5	S & K Aerospace, LLC Top agencies USAF (Department of the Air Force)	$12,139,638	1.8%	Rank history: not on the FY2021 list, #3 in FY2022, #16 in FY2023 and #2 in FY2024; down 3 since FY2024.
6	Choctaw Defense Manufacturing LLC Top agencies Navy (Department of the Navy)	$10,203,160	1.5%	Rank history: not on the FY2021–FY2023 lists and #15 in FY2024; up 9 since FY2024.
7	Triumph Group Inc. Through Triumph Actuation Systems - Yakima, LLC Top agencies Navy (Department of the Navy)	$9,045,176	1.3%	Rank history: not on the FY2021–FY2024 lists; up 206 since FY2024.
8	Curtiss-Wright Flow Control Service, LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$8,064,045	1.2%	Rank history: not on the FY2021–FY2023 lists and #9 in FY2024; up 1 since FY2024.
9	Precision Custom Components, LLC Top agencies DLA (Defense Logistics Agency)	$7,967,298	1.2%	Rank history: not on the FY2021 list, #33 in FY2022, #32 in FY2023 and #23 in FY2024; up 14 since FY2024.
10	Atap Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) Army (Department of the Army)	$7,302,559	1.1%	Rank history: #10 in FY2021, #6 in FY2022, #5 in FY2023 and #13 in FY2024; up 3 since FY2024.
11	Atlantic Diving Supply, Inc. Top agencies Navy (Department of the Navy) DOJ (Department of Justice) DHS (Department of Homeland Security)	$7,158,336	1.1%	Rank history: not on the FY2021–FY2023 lists and #100 in FY2024; up 89 since FY2024.
12	Welin Lambie Limited Through Hornet Acquisitionco, LLC Top agencies USAF (Department of the Air Force)	$6,982,418	1.0%	Rank history: not on the FY2021–FY2024 lists; new.
13	RTX Corporation 6 awardees, including Hamilton Sundstrand Corporation, Hornet Acquisitionco, LLC and Intertrade Limited Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$5,798,735	0.9%	Rank history: not on the FY2021–FY2023 lists and #54 in FY2024; up 41 since FY2024.
14	The Entwistle Company LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$5,796,003	0.9%	Rank history: not on the FY2021–FY2023 lists and #10 in FY2024; down 4 since FY2024.
15	York Precision Machining and Hydraulics, LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$5,403,747	0.8%	Rank history: #35 in FY2021, #50 in FY2022, #4 in FY2023 and #32 in FY2024; up 17 since FY2024.
16	Sun Test Systems B.V. Top agencies Navy (Department of the Navy)	$5,381,310	0.8%	Rank history: not on the FY2021–FY2024 lists; new.
17	The Boeing Company 5 awardees Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) Navy (Department of the Navy)	$5,289,902	0.8%	Rank history: #19 in FY2021, #27 in FY2022, #51 in FY2023 and #38 in FY2024; up 21 since FY2024.
18	Kuog Corp Top agencies USAF (Department of the Air Force)	$5,161,100	0.8%	Rank history: not on the FY2021–FY2022 lists, #7 in FY2023 and #93 in FY2024; up 75 since FY2024.
19	L3Harris Technologies, Inc. Through Calzoni S.R.L. Top agencies Navy (Department of the Navy)	$4,871,929	0.7%	Rank history: #27 in FY2021, #99 in FY2022, #29 in FY2023 and #86 in FY2024; up 67 since FY2024.
20	Mainstream Engineering Corp Top agencies DLA (Defense Logistics Agency)	$4,786,348	0.7%	Rank history: not on the FY2021–FY2024 lists; new.
21	Bowhead Avionics Manufacturing LLC Top agencies Navy (Department of the Navy)	$4,743,803	0.7%	Rank history: not on the FY2021–FY2023 lists and #57 in FY2024; up 36 since FY2024.
22	Hydraulics International, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$4,711,828	0.7%	Rank history: #9 in FY2021, #11 in FY2022, #8 in FY2023 and #62 in FY2024; up 40 since FY2024.
23	Dutch Valley Supply Co. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$3,833,071	0.6%	Rank history: #15 in FY2021, #24 in FY2022, #26 in FY2023 and #28 in FY2024; up 5 since FY2024.
24	AFP Industries, Inc. Top agencies Navy (Department of the Navy)	$3,654,504	0.5%	Rank history: not on the FY2021–FY2022 lists, #49 in FY2023 and not on the FY2024 list; up 207 since FY2024.
25	Deval Life Cycle Support LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$3,261,952	0.5%	Rank history: not on the FY2021–FY2022 lists, #24 in FY2023 and #17 in FY2024; down 8 since FY2024.
26	Aeroforge, Inc. Top agencies Navy (Department of the Navy)	$3,070,817	0.5%	Rank history: not on the FY2021–FY2024 lists; new.
27	Capy Machine Shop Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$2,956,490	0.4%	Rank history: not on the FY2021–FY2022 lists, #91 in FY2023 and #39 in FY2024; up 12 since FY2024.
28	Industrial Marine, Inc. Top agencies DLA (Defense Logistics Agency)	$2,621,574	0.4%	Rank history: not on the FY2021 list, #69 in FY2022, not on the FY2023 list and #31 in FY2024; up 3 since FY2024.
29	Peck & Hale, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$2,441,559	0.4%	Rank history: #23 in FY2021, not on the FY2022 list, #40 in FY2023 and #21 in FY2024; down 8 since FY2024.
30	F3 Logistics LLC Top agencies USAF (Department of the Air Force)	$2,434,668	0.4%	Rank history: not on the FY2021–FY2024 lists; up 115 since FY2024.
31	U.s.a. Spares Inc. Top agencies DLA (Defense Logistics Agency)	$2,290,654	0.3%	Rank history: #76 in FY2021, #23 in FY2022, #27 in FY2023 and #24 in FY2024; down 7 since FY2024.
32	Beam Distributing, Inc. Top agencies Navy (Department of the Navy)	$2,018,575	0.3%	Rank history: not on the FY2021–FY2023 lists and #5 in FY2024; down 27 since FY2024.
33	EMF Engineered Components LLC Top agencies NASA (National Aeronautics and Space Administration)	$1,973,335	0.3%	Rank history: not on the FY2021–FY2023 lists and #73 in FY2024; up 40 since FY2024.
34	Integrated Procurement Technologies Top agencies DLA (Defense Logistics Agency)	$1,922,507	0.3%	Rank history: not on the FY2021–FY2024 lists; up 101 since FY2024.
35	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,835,956	0.3%	Rank history: #32 in FY2021, #61 in FY2022, #50 in FY2023 and #45 in FY2024; up 10 since FY2024.
36	Diagnostic Solutions International LLC Top agencies DLA (Defense Logistics Agency)	$1,796,091	0.3%	Rank history: #31 in FY2021, not on the FY2022–FY2023 lists and #60 in FY2024; up 24 since FY2024.
37	MCT Industries, Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$1,715,115	0.3%	Rank history: #22 in FY2021, #25 in FY2022, #10 in FY2023 and #78 in FY2024; up 41 since FY2024.
38	Slipstream EDI LLC Top agencies USAF (Department of the Air Force)	$1,707,077	0.3%	Rank history: not on the FY2021–FY2024 lists; new.
39	Northrop Grumman Corporation 4 awardees, including Northrop Grumman Systems Corporation Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force) Navy (Department of the Navy)	$1,584,889	0.2%	Rank history: #2 in FY2021, #39 in FY2022, not on the FY2023 list and #12 in FY2024; down 27 since FY2024.
40	Parts Life Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,565,564	0.2%	Rank history: #29 in FY2021, #19 in FY2022 and not on the FY2023–FY2024 lists; up 90 since FY2024.
41	Murdock Webbing Company, Inc. Top agencies DLA (Defense Logistics Agency)	$1,553,452	0.2%	Rank history: #25 in FY2021, #15 in FY2022, #15 in FY2023 and #16 in FY2024; down 25 since FY2024.
42	Indal Technologies Inc 2 awardees Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,481,643	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
43	Alvest (USA) Inc. Through TLD America Corporation Top agencies USAF (Department of the Air Force)	$1,404,330	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
44	Holmes Tool and Engineering, Inc. Top agencies USAF (Department of the Air Force)	$1,332,925	0.2%	Rank history: #95 in FY2021, #80 in FY2022 and not on the FY2023–FY2024 lists; up 60 since FY2024.
45	A3 Systems Corporation Top agencies GSA (General Services Administration) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$1,332,273	0.2%	Rank history: not on the FY2021–FY2022 lists, #53 in FY2023 and #67 in FY2024; up 22 since FY2024.
46	General Metals Powder Co Top agencies DLA (Defense Logistics Agency)	$1,297,161	0.2%	Rank history: #36 in FY2021, #52 in FY2022, #42 in FY2023 and #53 in FY2024; up 7 since FY2024.
47	Syn-Tech System, Inc. Top agencies DLA (Defense Logistics Agency)	$1,288,273	0.2%	Rank history: not on the FY2021 list, #43 in FY2022, #93 in FY2023 and #58 in FY2024; up 11 since FY2024.
48	Honematic Machine Corporation Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,231,360	0.2%	Rank history: not on the FY2021–FY2023 lists and #64 in FY2024; up 16 since FY2024.
49	ACG Systems, Inc. Top agencies USAF (Department of the Air Force)	$1,204,733	0.2%	Rank history: not on the FY2021–FY2022 lists, #47 in FY2023 and not on the FY2024 list; returned.
50	Triman Industries Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,194,232	0.2%	Rank history: #38 in FY2021, #57 in FY2022, not on the FY2023 list and #19 in FY2024; down 31 since FY2024.
51	Consumer Fuels Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$1,137,051	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
52	R & M Government Services Inc. Top agencies DLA (Defense Logistics Agency)	$1,070,053	0.2%	Rank history: not on the FY2021–FY2022 lists, #61 in FY2023 and not on the FY2024 list; up 54 since FY2024.
53	Airtronics, LLC Top agencies DLA (Defense Logistics Agency)	$1,054,599	0.2%	Rank history: not on the FY2021 list, #58 in FY2022, #58 in FY2023 and #65 in FY2024; up 12 since FY2024.
54	Hunt Valve Company Inc. 2 awardees Top agencies DLA (Defense Logistics Agency)	$1,026,918	0.2%	Rank history: not on the FY2021–FY2024 lists; new.
55	Statz Corp Top agencies DLA (Defense Logistics Agency)	$1,021,828	0.2%	Rank history: #41 in FY2021, #54 in FY2022, #35 in FY2023 and #48 in FY2024; down 7 since FY2024.
56	Advance Development & Manufacturing Corporation Top agencies DLA (Defense Logistics Agency)	$986,447	0.1%	Rank history: not on the FY2021 list, #60 in FY2022, not on the FY2023 list and #46 in FY2024; down 10 since FY2024.
57	Kennon Products Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$983,911	0.1%	Rank history: #66 in FY2021, #67 in FY2022, #74 in FY2023 and #55 in FY2024; down 2 since FY2024.
58	Sunbelt Design & Development, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$979,408	0.1%	Rank history: #33 in FY2021, #53 in FY2022, #86 in FY2023 and not on the FY2024 list; up 51 since FY2024.
59	Cap 360 LLC Top agencies DLA (Defense Logistics Agency)	$944,458	0.1%	Rank history: not on the FY2021–FY2024 lists; up 92 since FY2024.
60	General Dynamics Corporation 2 awardees, including General Dynamics-Ots, Inc. Top agencies DLA (Defense Logistics Agency)	$918,623	0.1%	Rank history: #44 in FY2021, #47 in FY2022, not on the FY2023 list and #30 in FY2024; down 30 since FY2024.
61	Barbaricum LLC Through Oscar Deuce LLC Top agencies Army (Department of the Army)	$875,927	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
62	Newview Oklahoma, Inc. Top agencies DLA (Defense Logistics Agency)	$852,323	0.1%	Rank history: #74 in FY2021, #62 in FY2022, #52 in FY2023 and #81 in FY2024; up 19 since FY2024.
63	Cardinal Scientific, Inc. Top agencies Navy (Department of the Navy)	$850,716	0.1%	Rank history: not on the FY2021–FY2024 lists; up 267 since FY2024.
64	Shield Technologies Corp Top agencies DLA (Defense Logistics Agency)	$841,447	0.1%	Rank history: #37 in FY2021, #76 in FY2022, #84 in FY2023 and #26 in FY2024; down 38 since FY2024.
65	Bestek Industries Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$809,841	0.1%	Rank history: #79 in FY2021, not on the FY2022 list, #67 in FY2023 and not on the FY2024 list; up 48 since FY2024.
66	NV Bekaert SA Through Bridon-American Corp Top agencies DLA (Defense Logistics Agency)	$779,275	0.1%	Rank history: not on the FY2021–FY2022 lists, #23 in FY2023 and not on the FY2024 list; returned.
67	Aircraft Covers, Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$765,633	0.1%	Rank history: #61 in FY2021, #74 in FY2022, #54 in FY2023 and #56 in FY2024; down 11 since FY2024.
68	Nobles Worldwide Inc. Top agencies DLA (Defense Logistics Agency)	$722,861	0.1%	Rank history: not on the FY2021–FY2024 lists; up 64 since FY2024.
69	Raloid Tool Co., Inc. Top agencies Army (Department of the Army)	$717,707	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
70	Critical Communications, Controls and Instruments, LLC Top agencies Navy (Department of the Navy)	$686,516	0.1%	Rank history: #12 in FY2021, #22 in FY2022, #65 in FY2023 and #18 in FY2024; down 52 since FY2024.
71	SRM Mfg. Co., LLC Top agencies DLA (Defense Logistics Agency)	$679,891	0.1%	Rank history: not on the FY2021–FY2022 lists, #96 in FY2023 and not on the FY2024 list; returned.
72	MTC Engineering LLC Top agencies DLA (Defense Logistics Agency)	$661,886	0.1%	Rank history: not on the FY2021–FY2024 lists; up 113 since FY2024.
73	Ciqima Federal Services LLC Top agencies USAF (Department of the Air Force)	$642,096	0.1%	Rank history: not on the FY2021–FY2024 lists; up 154 since FY2024.
74	Canadian Commercial Corporation Top agencies Navy (Department of the Navy)	$639,820	0.1%	Rank history: not on the FY2021–FY2023 lists and #3 in FY2024; down 71 since FY2024.
75	LBA Technology, Inc. Top agencies USAF (Department of the Air Force)	$616,152	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
76	Jag Components, LLC Top agencies DLA (Defense Logistics Agency)	$615,604	0.1%	Rank history: not on the FY2021–FY2024 lists; up 50 since FY2024.
77	Age Logistics Corporation Top agencies USAF (Department of the Air Force)	$613,400	0.1%	Rank history: not on the FY2021–FY2024 lists; up 73 since FY2024.
78	D. Gillette Industrial Service's Inc. Top agencies Navy (Department of the Navy)	$595,885	0.1%	Rank history: #21 in FY2021, #26 in FY2022 and not on the FY2023–FY2024 lists; up 121 since FY2024.
79	Towflexx Technologies Inc. Top agencies USAF (Department of the Air Force)	$581,845	0.1%	Rank history: not on the FY2021–FY2024 lists; up 46 since FY2024.
80	Form Fit & Function LLC Top agencies DLA (Defense Logistics Agency)	$580,453	0.1%	Rank history: not on the FY2021 list, #72 in FY2022, not on the FY2023 list and #96 in FY2024; up 16 since FY2024.
81	FBC Enterprises LLC Top agencies DLA (Defense Logistics Agency)	$576,595	0.1%	Rank history: not on the FY2021–FY2024 lists; up 37 since FY2024.
82	Davis Aircraft Products Co., Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$569,556	0.1%	Rank history: #64 in FY2021, #68 in FY2022, #75 in FY2023 and #36 in FY2024; down 46 since FY2024.
83	Integrated Test Solutions, Inc. Top agencies USAF (Department of the Air Force)	$564,764	0.1%	Rank history: not on the FY2021–FY2024 lists; new.
84	Coating Specialties, Inc. Top agencies DLA (Defense Logistics Agency)	$563,849	0.1%	Rank history: #98 in FY2021 and not on the FY2022–FY2024 lists; up 207 since FY2024.
85	PDC Machines, LLC Top agencies DLA (Defense Logistics Agency)	$544,235	0.1%	Rank history: not on the FY2021–FY2022 lists, #60 in FY2023 and not on the FY2024 list; up 17 since FY2024.
86	Brackett Aircraft Company, Inc. Top agencies DLA (Defense Logistics Agency)	$530,940	0.1%	Rank history: #84 in FY2021, not on the FY2022 list, #83 in FY2023 and not on the FY2024 list; up 31 since FY2024.
87	Aircraft Ground Equipment, LLC Top agencies USAF (Department of the Air Force) Army (Department of the Army)	$518,398	0.1%	Rank history: not on the FY2021–FY2023 lists and #74 in FY2024; down 13 since FY2024.
88	Boneal, Incorporated Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$507,575	0.1%	Rank history: not on the FY2021 list, #89 in FY2022, #31 in FY2023 and #29 in FY2024; down 59 since FY2024.
89	R.e. Atckison Co., Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$502,150	0.1%	Rank history: #91 in FY2021 and not on the FY2022–FY2024 lists; up 148 since FY2024.
90	F3 Solutions LLC Top agencies USAF (Department of the Air Force)	$500,000	0.1%	Rank history: not on the FY2021–FY2024 lists; up 316 since FY2024.
91	Equipment & Supply Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$495,156	0.1%	Rank history: not on the FY2021–FY2024 lists; up 190 since FY2024.
92	Avioss LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$489,355	0.1%	Rank history: #39 in FY2021, not on the FY2022 list, #41 in FY2023 and not on the FY2024 list; up 72 since FY2024.
93	Weckworth Manufacturing, Inc. Top agencies DLA (Defense Logistics Agency)	$472,700	0.1%	Rank history: #81 in FY2021, #98 in FY2022, #90 in FY2023 and #80 in FY2024; down 13 since FY2024.
94	Spika Design & Manufacturing, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) Army (Department of the Army)	$463,160	0.1%	Rank history: #73 in FY2021, not on the FY2022–FY2023 lists and #92 in FY2024; down 2 since FY2024.
95	Indra Air Traffic, Inc. Top agencies USAF (Department of the Air Force)	$460,496	0.1%	Rank history: not on the FY2021–FY2024 lists; up 183 since FY2024.
96	The Handy Tool & Mfg. Co., Inc. Top agencies DLA (Defense Logistics Agency)	$452,600	0.1%	Rank history: not on the FY2021 list, #73 in FY2022, not on the FY2023 list and #50 in FY2024; down 46 since FY2024.
97	Dixequip Inc Top agencies Navy (Department of the Navy)	$447,280	0.1%	Rank history: not on the FY2021–FY2022 lists, #39 in FY2023 and not on the FY2024 list; returned.
98	Kastalon Inc. Top agencies DLA (Defense Logistics Agency)	$446,895	0.1%	Rank history: #54 in FY2021, #71 in FY2022, #100 in FY2023 and #87 in FY2024; down 11 since FY2024.
99	R & R Industries Ltd Inc. Top agencies DLA (Defense Logistics Agency)	$443,561	0.1%	Rank history: not on the FY2021–FY2022 lists, #81 in FY2023 and #63 in FY2024; down 36 since FY2024.
100	Aero Specialties Inc. Top agencies DHS (Department of Homeland Security) USAF (Department of the Air Force)	$441,254	0.1%	Rank history: #100 in FY2021 and not on the FY2022–FY2024 lists; up 115 since FY2024.

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100 of 574 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC 17

Code	Net obligations	Largest contractor
1720 Aircraft Launching Equipment	$345,876,507	Diazyme Laboratories Inc.
1730 Aircraft Ground Servicing Equipment	$237,051,613	Sun Test Systems, Inc.
1710 Aircraft Landing Equipment	$55,860,121	Curtiss-Wright Flow Control Service, LLC
1740 Airfield Specialized Trucks and Trailers	$20,617,617	Atlantic Diving Supply, Inc.

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 $678 million obligated before deobligations, so they never pass 100%.
Parent companies: each action counts under the ultimate parent its award record names, or under the awardee when it names none, so no dollar counts twice. Parents of the same name (Inc., LLC and the like aside) count as one company, since FPDS records a company's parent under more than one UEI over time. GovTribe corrects a few parents and names by hand; see the corrections.
Fiscal year 2025 ran Oct 1, 2024 – Sep 30, 2025. The Department of Defense reports its contract actions to FPDS about 90 days late, so a fiscal year is ranked once they're in, in February, and the list doesn't change after.
Rank changes compare with FY2024. "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. The step from FY2024 takes the color of the rank change beside it.
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 17 contractors in FY2025?

1. Diazyme Laboratories Inc. ($298M), 2. Sun Test Systems, Inc. ($88.7M), 3. Lockheed Martin Corporation ($16.2M), 4. T Air Inc ($15.1M), 5. S & K Aerospace, LLC ($12.1M), 6. Choctaw Defense Manufacturing LLC ($10.2M), 7. Triumph Group Inc. ($9.05M), 8. Curtiss-Wright Flow Control Service, LLC ($8.06M), 9. Precision Custom Components, LLC ($7.97M), 10. Atap Inc. ($7.3M).

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