Top 100 Contractors in PSC 17: Aerospace Craft Launching, Landing, Ground Handling and Servicing Equipment, FY2021

Name: Top 100 Contractors in PSC 17: Aerospace Craft Launching, Landing, Ground Handling and Servicing Equipment, FY2021
Creator: GovTribe

Parent companies by net contract obligations Oct 1, 2020 – Sep 30, 2021 Code page on GovTribe

The top 10 won 61% of FY2021 PSC 17 contract dollars

Contract obligations: $350,698,918 Net of deobligations, by contracts coded PSC 17 or a code under it
Contractors: 617 Parent companies with an obligation
Largest contractor: General Atomic Technologies Corporation $139 million, 35.8% 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	General Atomic Technologies Corporation 3 awardees, including General Atomics Top agencies Navy (Department of the Navy)	$139,207,540	35.8%	Rank history: #1 in FY2022, #1 in FY2023, #4 in FY2024 and not on the FY2025 list; unchanged since FY2020.
2	Northrop Grumman Corporation 5 awardees, including Northrop Grumman Systems Corporation Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$16,185,128	4.2%	Rank history: #39 in FY2022, not on the FY2023 list, #12 in FY2024 and #39 in FY2025; up 5 since FY2020.
3	Vertex Aerospace LLC Through V2X Aerospace LLC Top agencies Navy (Department of the Navy)	$13,869,239	3.6%	Rank history: not on the FY2022–FY2025 lists; up 17 since FY2020.
4	SAFRAN 3 awardees, including Curtiss-Wright Flow Control Service, LLC, Safran Electrical Components Canada Inc. and Safran Electronics & Defense Avionics USA LLC Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$13,316,060	3.4%	Rank history: #51 in FY2022, #9 in FY2023 and not on the FY2024–FY2025 lists; up 59 since FY2020.
5	2101 LLC Top agencies USAF (Department of the Air Force)	$11,649,911	3.0%	Rank history: not on the FY2022–FY2025 lists; up 14 since FY2020.
6	TLD America Corporation Top agencies USAF (Department of the Air Force) Navy (Department of the Navy)	$11,303,177	2.9%	Rank history: #36 in FY2022 and not on the FY2023–FY2025 lists; up 232 since FY2020.
7	ATI Engineering Services LLC Top agencies USAF (Department of the Air Force)	$9,690,087	2.5%	Rank history: #5 in FY2022, #34 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
8	Wollard International LLC Through TLD Wollard LLC Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$8,012,139	2.1%	Rank history: #49 in FY2022, #62 in FY2023 and not on the FY2024–FY2025 lists; up 7 since FY2020.
9	Hydraulics International, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$7,568,312	1.9%	Rank history: #11 in FY2022, #8 in FY2023, #62 in FY2024 and #22 in FY2025; unchanged since FY2020.
10	Atap Inc. Top agencies USAF (Department of the Air Force) Army (Department of the Army) DLA (Defense Logistics Agency)	$6,398,969	1.6%	Rank history: #6 in FY2022, #5 in FY2023, #13 in FY2024 and #10 in FY2025; up 34 since FY2020.
11	Government of Canada Through Canadian Commercial Corporation Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$5,979,849	1.5%	Rank history: #2 in FY2022, #6 in FY2023, #7 in FY2024 and not on the FY2025 list; up 5 since FY2020.
12	Critical Communications, Controls and Instruments, LLC Top agencies Navy (Department of the Navy)	$5,856,020	1.5%	Rank history: #22 in FY2022, #65 in FY2023, #18 in FY2024 and #70 in FY2025; up 5 since FY2020.
13	Bering Straits Native Corporation Through Bering Global Solutions, LLC Top agencies USAF (Department of the Air Force)	$5,198,246	1.3%	Rank history: #30 in FY2022 and not on the FY2023–FY2025 lists; up 98 since FY2020.
14	PDI Ground Support Systems, Inc. Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$4,926,713	1.3%	Rank history: not on the FY2022–FY2023 lists, #88 in FY2024 and not on the FY2025 list; up 183 since FY2020.
15	Dutch Valley Supply Co. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$4,176,183	1.1%	Rank history: #24 in FY2022, #26 in FY2023, #28 in FY2024 and #23 in FY2025; down 2 since FY2020.
16	Greene Machine & Manufacturing Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$4,140,517	1.1%	Rank history: not on the FY2022 list, #33 in FY2023, #51 in FY2024 and not on the FY2025 list; up 36 since FY2020.
17	Atech Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$3,895,348	1.0%	Rank history: #59 in FY2022 and not on the FY2023–FY2025 lists; up 232 since FY2020.
18	ADB Safegate Americas LLC Top agencies DOT (Department of Transportation)	$3,676,463	0.9%	Rank history: not on the FY2022–FY2025 lists; up 387 since FY2020.
19	The Boeing Company 10 awardees, including Jeppesen Foreflight, Inc., Boeing Distribution, Inc. and Boeing Distribution Services X, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$3,195,267	0.8%	Rank history: #27 in FY2022, #51 in FY2023, #38 in FY2024 and #17 in FY2025; down 7 since FY2020.
20	Triumph Group, Inc. 3 awardees, including Triumph Actuation Systems - Yakima, LLC and Triumph Actuation Systems - Connecticut, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$3,066,604	0.8%	Rank history: #21 in FY2022 and not on the FY2023–FY2025 lists; up 3 since FY2020.
21	D. Gillette Industrial Service's Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$2,782,422	0.7%	Rank history: #26 in FY2022, not on the FY2023–FY2024 lists and #78 in FY2025; up 35 since FY2020.
22	MCT Industries, Inc. 2 awardees Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$2,671,664	0.7%	Rank history: #25 in FY2022, #10 in FY2023, #78 in FY2024 and #37 in FY2025; up 47 since FY2020.
23	Peck & Hale, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$2,645,277	0.7%	Rank history: not on the FY2022 list, #40 in FY2023, #21 in FY2024 and #29 in FY2025; up 44 since FY2020.
24	Moog Inc. 3 awardees, including Moog Controls Limited Top agencies USAF (Department of the Air Force)	$2,623,718	0.7%	Rank history: not on the FY2022 list, #37 in FY2023 and not on the FY2024–FY2025 lists; up 228 since FY2020.
25	Murdock Webbing Company, Inc. Top agencies DLA (Defense Logistics Agency)	$2,504,762	0.6%	Rank history: #15 in FY2022, #15 in FY2023, #16 in FY2024 and #41 in FY2025; up 18 since FY2020.
26	Bethlehem Wire Rope, Inc. Top agencies DLA (Defense Logistics Agency)	$2,452,200	0.6%	Rank history: not on the FY2022 list, #14 in FY2023 and not on the FY2024–FY2025 lists; up 50 since FY2020.
27	L3Harris Technologies, Inc. 3 awardees, including Calzoni S.R.L. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$2,219,147	0.6%	Rank history: #99 in FY2022, #29 in FY2023, #86 in FY2024 and #19 in FY2025; down 9 since FY2020.
28	The Entwistle Trust Through The Entwistle Company LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$2,011,239	0.5%	Rank history: #7 in FY2022, #18 in FY2023, #8 in FY2024 and not on the FY2025 list; down 20 since FY2020.
29	Parts Life Inc. 2 awardees, including Deval Life Cycle Support LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,832,527	0.5%	Rank history: #19 in FY2022, not on the FY2023–FY2024 lists and #40 in FY2025; up 49 since FY2020.
30	Seyer Industries, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,753,647	0.5%	Rank history: not on the FY2022 list, #88 in FY2023, #76 in FY2024 and not on the FY2025 list; up 18 since FY2020.
31	Diagnostic Solutions International LLC Top agencies DLA (Defense Logistics Agency)	$1,679,290	0.4%	Rank history: not on the FY2022–FY2023 lists, #60 in FY2024 and #36 in FY2025; up 3 since FY2020.
32	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency)	$1,631,487	0.4%	Rank history: #61 in FY2022, #50 in FY2023, #45 in FY2024 and #35 in FY2025; up 8 since FY2020.
33	Sunbelt Design & Development, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$1,578,040	0.4%	Rank history: #53 in FY2022, #86 in FY2023, not on the FY2024 list and #58 in FY2025; down 11 since FY2020.
34	Parasanti Inc. Top agencies WHS (DOD Washington Headquarters Service)	$1,535,563	0.4%	Rank history: #17 in FY2022, #13 in FY2023, #35 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
35	York Precision Machining and Hydraulics, LLC Top agencies DLA (Defense Logistics Agency)	$1,504,871	0.4%	Rank history: #50 in FY2022, #4 in FY2023, #32 in FY2024 and #15 in FY2025; down 24 since FY2020.
36	General Metals Powder Co Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$1,472,692	0.4%	Rank history: #52 in FY2022, #42 in FY2023, #53 in FY2024 and #46 in FY2025; up 95 since FY2020.
37	Shield Technologies Corp Top agencies DLA (Defense Logistics Agency)	$1,206,437	0.3%	Rank history: #76 in FY2022, #84 in FY2023, #26 in FY2024 and #64 in FY2025; up 12 since FY2020.
38	Triman Industries Inc. Top agencies DLA (Defense Logistics Agency)	$1,184,045	0.3%	Rank history: #57 in FY2022, not on the FY2023 list, #19 in FY2024 and #50 in FY2025; up 243 since FY2020.
39	Avioss LLC Top agencies Navy (Department of the Navy)	$1,161,696	0.3%	Rank history: not on the FY2022 list, #41 in FY2023, not on the FY2024 list and #92 in FY2025; up 69 since FY2020.
40	Sea Box, Inc. Top agencies DOT (Department of Transportation)	$1,127,797	0.3%	Rank history: #32 in FY2022, #89 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
41	Statz Corp Top agencies DLA (Defense Logistics Agency)	$1,091,373	0.3%	Rank history: #54 in FY2022, #35 in FY2023, #48 in FY2024 and #55 in FY2025; up 18 since FY2020.
42	Blue Moon Designs, LLC Top agencies Navy (Department of the Navy) Army (Department of the Army)	$1,061,672	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
43	X - Sight Systems Ltd Top agencies Navy (Department of the Navy)	$1,046,885	0.3%	Rank history: #66 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
44	General Dynamics Corporation Through General Dynamics-Ots, Inc. Top agencies DLA (Defense Logistics Agency)	$1,029,205	0.3%	Rank history: #47 in FY2022, not on the FY2023 list, #30 in FY2024 and #60 in FY2025; up 159 since FY2020.
45	Thales Through Thales Usa, Inc. Top agencies USAF (Department of the Air Force)	$965,845	0.2%	Rank history: #18 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
46	Testvonics Inc. Top agencies DHS (Department of Homeland Security)	$960,000	0.2%	Rank history: not on the FY2022–FY2025 lists; down 17 since FY2020.
47	Hunter Defense Technolog Through HDT Expeditionary Systems Inc. Top agencies USAF (Department of the Air Force)	$911,962	0.2%	Rank history: not on the FY2022–FY2025 lists; down 41 since FY2020.
48	Adacel Technologies Limited Through Adacel Systems Inc. Top agencies USAF (Department of the Air Force)	$881,365	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
49	Avans Machine, Inc. Top agencies Navy (Department of the Navy)	$839,285	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
50	Epsilon Systems Solutions, Inc. 2 awardees Top agencies Navy (Department of the Navy)	$829,757	0.2%	Rank history: #64 in FY2022 and not on the FY2023–FY2025 lists; up 20 since FY2020.
51	Oscar Deuce LLC Top agencies Army (Department of the Army)	$809,221	0.2%	Rank history: #56 in FY2022, #57 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
52	Nobles Worldwide, Inc. Top agencies DLA (Defense Logistics Agency)	$788,433	0.2%	Rank history: #87 in FY2022, #78 in FY2023 and not on the FY2024–FY2025 lists; up 150 since FY2020.
53	Deval Corporation Top agencies Navy (Department of the Navy)	$771,264	0.2%	Rank history: not on the FY2022–FY2025 lists; down 39 since FY2020.
54	Kastalon Inc. Top agencies DLA (Defense Logistics Agency)	$723,372	0.2%	Rank history: #71 in FY2022, #100 in FY2023, #87 in FY2024 and #98 in FY2025; up 84 since FY2020.
55	Skymark Refuelers LLC Top agencies NASA (National Aeronautics and Space Administration) Army (Department of the Army)	$710,755	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
56	Johnson Brass & Machine Foundry Inc. Top agencies DLA (Defense Logistics Agency)	$691,931	0.2%	Rank history: not on the FY2022–FY2023 lists, #61 in FY2024 and not on the FY2025 list; up 117 since FY2020.
57	Paravion Technology Inc. Top agencies Navy (Department of the Navy)	$689,810	0.2%	Rank history: not on the FY2022–FY2025 lists; up 31 since FY2020.
58	Bell Boeing Joint Project Office Top agencies DLA (Defense Logistics Agency)	$687,862	0.2%	Rank history: #91 in FY2022 and not on the FY2023–FY2025 lists; up 58 since FY2020.
59	First State Manufacturing Inc. Top agencies DLA (Defense Logistics Agency)	$681,545	0.2%	Rank history: not on the FY2022–FY2025 lists; up 31 since FY2020.
60	Production Products Manufacturing & Sales Co., Inc. Top agencies USAF (Department of the Air Force)	$664,077	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
61	Aircraft Covers, Inc. Top agencies DLA (Defense Logistics Agency)	$612,495	0.2%	Rank history: #74 in FY2022, #54 in FY2023, #56 in FY2024 and #67 in FY2025; up 26 since FY2020.
62	Incoimbra LDA Through Oreyeon, LDA Top agencies WHS (DOD Washington Headquarters Service)	$594,659	0.2%	Rank history: #70 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
63	Choctaw Nation of Oklahoma Through Choctaw Defense Manufacturing LLC Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$582,965	0.1%	Rank history: #31 in FY2022, #22 in FY2023, #22 in FY2024 and not on the FY2025 list; up 41 since FY2020.
64	Davis Aircraft Products Co., Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$554,593	0.1%	Rank history: #68 in FY2022, #75 in FY2023, #36 in FY2024 and #82 in FY2025; up 22 since FY2020.
65	General Manufacturing LLC Top agencies Army (Department of the Army)	$550,590	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
66	Kennon Products Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$549,933	0.1%	Rank history: #67 in FY2022, #74 in FY2023, #55 in FY2024 and #57 in FY2025; up 13 since FY2020.
67	Multivariable Systems Tech, LLC Top agencies Army (Department of the Army)	$526,164	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
68	Calzoni SRL Top agencies Navy (Department of the Navy)	$521,333	0.1%	Rank history: #20 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
69	Rolin Industries Inc. Top agencies DLA (Defense Logistics Agency)	$516,708	0.1%	Rank history: not on the FY2022–FY2025 lists; down 9 since FY2020.
70	CV International, Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$512,446	0.1%	Rank history: not on the FY2022 list, #87 in FY2023 and not on the FY2024–FY2025 lists; down 6 since FY2020.
71	Airbus Americas Inc. Through Airbus Helicopters, Inc. Top agencies DHS (Department of Homeland Security)	$502,754	0.1%	Rank history: #90 in FY2022 and not on the FY2023–FY2025 lists; up 79 since FY2020.
72	Hyvee Equipment, LLC Top agencies Navy (Department of the Navy)	$497,730	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
73	Spika Design & Manufacturing, Inc. Top agencies Army (Department of the Army) DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$485,474	0.1%	Rank history: not on the FY2022–FY2023 lists, #92 in FY2024 and #94 in FY2025; up 8 since FY2020.
74	Newview Oklahoma, Inc. Top agencies DLA (Defense Logistics Agency)	$455,975	0.1%	Rank history: #62 in FY2022, #52 in FY2023, #81 in FY2024 and #62 in FY2025; up 1 since FY2020.
75	FAST Global Solutions Inc. Top agencies DLA (Defense Logistics Agency)	$449,568	0.1%	Rank history: #86 in FY2022, #71 in FY2023 and not on the FY2024–FY2025 lists; up 136 since FY2020.
76	U.s.a. Spares Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$448,958	0.1%	Rank history: #23 in FY2022, #27 in FY2023, #24 in FY2024 and #31 in FY2025; down 26 since FY2020.
77	Simpson Alloy Services Inc. Top agencies USAF (Department of the Air Force)	$447,428	0.1%	Rank history: not on the FY2022–FY2025 lists; up 16 since FY2020.
78	ACR Machine LLC Top agencies DLA (Defense Logistics Agency)	$439,980	0.1%	Rank history: #100 in FY2022, #73 in FY2023 and not on the FY2024–FY2025 lists; down 39 since FY2020.
79	Bestek Industries Inc. Top agencies DLA (Defense Logistics Agency)	$428,912	0.1%	Rank history: not on the FY2022 list, #67 in FY2023, not on the FY2024 list and #65 in FY2025; up 1 since FY2020.
80	Theodor Wille Intertrade GMBH Through Atlantic Diving Supply, Inc. Top agencies DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$423,055	0.1%	Rank history: not on the FY2022–FY2025 lists; up 73 since FY2020.
81	Weckworth Manufacturing, Inc. Top agencies DLA (Defense Logistics Agency)	$414,229	0.1%	Rank history: #98 in FY2022, #90 in FY2023, #80 in FY2024 and #93 in FY2025; up 53 since FY2020.
82	Pacific Consolidated Industries LLC Top agencies DLA (Defense Logistics Agency)	$411,797	0.1%	Rank history: #46 in FY2022 and not on the FY2023–FY2025 lists; up 84 since FY2020.
83	Mhd-Rockland Inc. Top agencies DLA (Defense Logistics Agency)	$397,860	0.1%	Rank history: not on the FY2022–FY2025 lists; up 205 since FY2020.
84	Brackett Aircraft Company, Inc. Top agencies DLA (Defense Logistics Agency)	$396,102	0.1%	Rank history: not on the FY2022 list, #83 in FY2023, not on the FY2024 list and #86 in FY2025; up 25 since FY2020.
85	Garsite Progress, LLC Top agencies DOI (Department of the Interior) DHS (Department of Homeland Security)	$361,438	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
86	Martin Military Inc. Top agencies DLA (Defense Logistics Agency)	$357,860	0.1%	Rank history: not on the FY2022 list, #56 in FY2023, #66 in FY2024 and not on the FY2025 list; up 24 since FY2020.
87	Griffon Corporation Through Telephonics Corporation Top agencies DOT (Department of Transportation)	$352,171	0.1%	Rank history: not on the FY2022–FY2025 lists; down 50 since FY2020.
88	Aantilia LLC Top agencies NASA (National Aeronautics and Space Administration) Navy (Department of the Navy) Army (Department of the Army)	$337,263	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
89	Apollo Metal Specialties, Inc. Top agencies DLA (Defense Logistics Agency)	$333,512	0.1%	Rank history: not on the FY2022–FY2025 lists; up 248 since FY2020.
90	Safe Structure Designs LLC Top agencies DHS (Department of Homeland Security) Army (Department of the Army)	$331,829	0.1%	Rank history: not on the FY2022–FY2025 lists; up 54 since FY2020.
91	R.e. Atckison Co., Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$322,538	0.1%	Rank history: not on the FY2022–FY2024 lists and #89 in FY2025; up 7 since FY2020.
92	Merrill Technologies Group, LLC Top agencies Navy (Department of the Navy)	$320,398	0.1%	Rank history: not on the FY2022–FY2025 lists; down 18 since FY2020.
93	KWD Aircraft Support Equipment LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$318,066	0.1%	Rank history: not on the FY2022–FY2025 lists; down 39 since FY2020.
94	Integrated Procurement Technologies Top agencies DLA (Defense Logistics Agency)	$316,137	0.1%	Rank history: #97 in FY2022 and not on the FY2023–FY2025 lists; down 62 since FY2020.
95	Holmes Tool and Engineering, Inc. Top agencies USAF (Department of the Air Force)	$314,015	0.1%	Rank history: #80 in FY2022, not on the FY2023–FY2024 lists and #44 in FY2025; up 147 since FY2020.
96	HDT International Holdings Inc. Through Hunter Defense Technologies, Inc. Top agencies DOT (Department of Transportation)	$307,522	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
97	Carolina Ground Service Equipment Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) USAF (Department of the Air Force)	$304,843	0.1%	Rank history: not on the FY2022–FY2025 lists; up 315 since FY2020.
98	Coating Specialties, Inc. Top agencies DLA (Defense Logistics Agency)	$298,736	0.1%	Rank history: not on the FY2022–FY2024 lists and #84 in FY2025; up 3 since FY2020.
99	Bowhead Professional and Technical Solutions LLC Top agencies Navy (Department of the Navy)	$290,513	0.1%	Rank history: not on the FY2022–FY2025 lists; unchanged since FY2020.
100	Aero Specialties Inc. Top agencies GSA (General Services Administration) USAF (Department of the Air Force) DHS (Department of Homeland Security)	$285,847	0.1%	Rank history: not on the FY2022–FY2024 lists and #100 in FY2025; down 76 since FY2020.

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100 of 617 contractors listed here. See the rest on GovTribe.

Rankings for the codes under PSC 17

Code	Net obligations	Largest contractor
1720 Aircraft Launching Equipment	$134,590,056	General Atomic Technologies Corporation
1730 Aircraft Ground Servicing Equipment	$109,906,077	Northrop Grumman Corporation
1710 Aircraft Landing Equipment	$73,614,824	General Atomic Technologies Corporation
1740 Airfield Specialized Trucks and Trailers	$32,024,449	2101 LLC

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 $389 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 2021 ran Oct 1, 2020 – Sep 30, 2021. 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 FY2020. "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 FY2020 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 FY2021?

1. General Atomic Technologies Corporation ($139M), 2. Northrop Grumman Corporation ($16.2M), 3. Vertex Aerospace LLC ($13.9M), 4. SAFRAN ($13.3M), 5. 2101 LLC ($11.6M), 6. TLD America Corporation ($11.3M), 7. ATI Engineering Services LLC ($9.69M), 8. Wollard International LLC ($8.01M), 9. Hydraulics International, Inc. ($7.57M), 10. Atap Inc. ($6.4M).

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