Top 100 Contractors in PSC 4810: Valves, Powered, FY2021

Name: Top 100 Contractors in PSC 4810: Valves, Powered, FY2021
Creator: GovTribe

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

The top 10 won 46% of FY2021 PSC 4810 contract dollars

Contract obligations: $130,874,875 Net of deobligations, by contracts coded PSC 4810
Contractors: 500 Parent companies with an obligation
Largest contractor: Parker-Hannifin Corporation $12.2 million, 8.6% 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	Parker-Hannifin Corporation 2 awardees Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$12,197,083	8.6%	Rank history: #9 in FY2022, #4 in FY2023, #9 in FY2024 and not on the FY2025 list; up 2 since FY2020.
2	Jamaica Bearings Co., Inc. 2 awardees Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$9,196,779	6.5%	Rank history: #1 in FY2022, #3 in FY2023, #4 in FY2024 and #3 in FY2025; unchanged since FY2020.
3	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$8,338,175	5.9%	Rank history: #11 in FY2022, #24 in FY2023, #11 in FY2024 and #20 in FY2025; up 17 since FY2020.
4	Transdigm Group Incorporated 6 awardees, including Tactair Fluid Controls Inc., Aerocontrolex Group, Inc. and Duke's Aerospace, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$6,924,454	4.9%	Rank history: #12 in FY2022, #23 in FY2023 and not on the FY2024–FY2025 lists; up 60 since FY2020.
5	Sargent Aerospace & Defense LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$6,224,358	4.4%	Rank history: #16 in FY2022, #1 in FY2023, #16 in FY2024 and not on the FY2025 list; up 6 since FY2020.
6	RTX Corporation 6 awardees, including Hamilton Sundstrand Corporation and Raytheon Company Top agencies USAF (Department of the Air Force) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$5,636,913	4.0%	Rank history: #8 in FY2022 and not on the FY2023–FY2025 lists; unchanged since FY2020.
7	Honeywell International Inc. 7 awardees Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$5,388,247	3.8%	Rank history: #3 in FY2022, #6 in FY2023, #13 in FY2024 and #4 in FY2025; down 6 since FY2020.
8	Marotta Controls Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$4,305,925	3.0%	Rank history: #2 in FY2022, #2 in FY2023, #3 in FY2024 and #2 in FY2025; down 1 since FY2020.
9	Moog Inc. 3 awardees Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$3,463,136	2.4%	Rank history: #19 in FY2022, #5 in FY2023, #5 in FY2024 and #5 in FY2025; down 1 since FY2020.
10	JA Moody LLC 2 awardees, including ESI Acquisition Corp Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$3,278,013	2.3%	Rank history: #7 in FY2022, #26 in FY2023, #19 in FY2024 and #11 in FY2025; up 3 since FY2020.
11	Griswold Industries Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force) Navy (Department of the Navy)	$3,239,420	2.3%	Rank history: #4 in FY2022, #11 in FY2023, #30 in FY2024 and #13 in FY2025; down 2 since FY2020.
12	Northrop Grumman Corporation 5 awardees, including Northrop Grumman Systems Corporation Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$2,060,302	1.5%	Rank history: #42 in FY2022, #77 in FY2023, #22 in FY2024 and not on the FY2025 list; up 40 since FY2020.
13	Cargotec OYJ Through Independent Rough Terrain Center LLC Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$2,005,455	1.4%	Rank history: #17 in FY2022, #36 in FY2023 and not on the FY2024–FY2025 lists; up 3 since FY2020.
14	Allied Defense Industries Inc. 3 awardees, including Aero International, LLC and Allied Marine Services LLC Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$1,848,227	1.3%	Rank history: #92 in FY2022, #29 in FY2023, #58 in FY2024 and #97 in FY2025; up 36 since FY2020.
15	S I T Corporation Top agencies DLA (Defense Logistics Agency)	$1,843,545	1.3%	Rank history: #77 in FY2022, #62 in FY2023, #69 in FY2024 and #60 in FY2025; up 6 since FY2020.
16	Transaero, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,795,231	1.3%	Rank history: #38 in FY2022, #19 in FY2023, #32 in FY2024 and #17 in FY2025; up 8 since FY2020.
17	Woodward Governor Company 3 awardees, including Woodward HRT Inc. and Woodward, Inc. Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force) Navy (Department of the Navy)	$1,647,574	1.2%	Rank history: #5 in FY2022, #16 in FY2023, #42 in FY2024 and not on the FY2025 list; down 12 since FY2020.
18	Eaton Corporation 3 awardees, including Eaton Aerospace LLC Top agencies Army (Department of the Army) USAF (Department of the Air Force) Navy (Department of the Navy)	$1,362,568	1.0%	Rank history: #65 in FY2022, #13 in FY2023, #39 in FY2024 and #22 in FY2025; up 1 since FY2020.
19	Lockheed Martin Corporation 4 awardees, including Derco Aerospace, Inc. and Sikorsky Aircraft Corporation Top agencies Navy (Department of the Navy) USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$1,322,983	0.9%	Rank history: #76 in FY2022, not on the FY2023 list, #41 in FY2024 and #53 in FY2025; down 15 since FY2020.
20	Morpac Industries, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,252,957	0.9%	Rank history: #20 in FY2022, #93 in FY2023, #51 in FY2024 and #16 in FY2025; down 6 since FY2020.
21	Meggitt PLC 2 awardees, including Meggitt North Hollywood Inc. and Meggitt Defense Systems, Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$1,212,068	0.9%	Rank history: not on the FY2022–FY2025 lists; up 171 since FY2020.
22	Dela Technology Corporation Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$1,160,868	0.8%	Rank history: #84 in FY2022, #59 in FY2023, #54 in FY2024 and #54 in FY2025; down 4 since FY2020.
23	W. & O. Supply Inc. 3 awardees Top agencies DLA (Defense Logistics Agency)	$1,153,230	0.8%	Rank history: #14 in FY2022, #21 in FY2023, #36 in FY2024 and #29 in FY2025; up 4 since FY2020.
24	Triman Industries Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) USAF (Department of the Air Force)	$1,019,585	0.7%	Rank history: #10 in FY2022, #17 in FY2023, #21 in FY2024 and #7 in FY2025; down 14 since FY2020.
25	The Boeing Company 6 awardees, including Boeing Distribution Services X, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$943,357	0.7%	Rank history: not on the FY2022–FY2024 lists and #38 in FY2025; up 21 since FY2020.
26	Integrated Procurement Technologies 2 awardees Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$872,667	0.6%	Rank history: #37 in FY2022, not on the FY2023 list, #17 in FY2024 and #6 in FY2025; up 91 since FY2020.
27	Martin Military Inc. Top agencies DLA (Defense Logistics Agency)	$868,039	0.6%	Rank history: #33 in FY2022, #100 in FY2023, #95 in FY2024 and #68 in FY2025; up 61 since FY2020.
28	Warren Pumps LLC 3 awardees, including Portland Valve LLC and Circor Aerospace, Inc. Top agencies Navy (Department of the Navy) USAF (Department of the Air Force)	$854,856	0.6%	Rank history: #32 in FY2022, #18 in FY2023, #23 in FY2024 and not on the FY2025 list; down 11 since FY2020.
29	Cobham Advanced Electronic Solutions Inc. Through Mission Systems Davenport Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$832,856	0.6%	Rank history: not on the FY2022–FY2025 lists; up 36 since FY2020.
30	Simtech, Inc. Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$821,667	0.6%	Rank history: not on the FY2022–FY2023 lists, #18 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
31	Flowserve Corporation 3 awardees, including Flowserve US, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$804,047	0.6%	Rank history: #29 in FY2022, #71 in FY2023, #49 in FY2024 and #64 in FY2025; down 5 since FY2020.
32	Blue Cord Logistic Strategies Inc. Top agencies DLA (Defense Logistics Agency)	$778,633	0.6%	Rank history: not on the FY2022–FY2025 lists; up 74 since FY2020.
33	Seahorse Defense Supply, LLC Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$751,146	0.5%	Rank history: not on the FY2022–FY2025 lists; up 436 since FY2020.
34	Aarcorp 2 awardees, including AAR Supply Chain, Inc. and AAR Allen Services, Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$729,884	0.5%	Rank history: #6 in FY2022, #54 in FY2023, #79 in FY2024 and not on the FY2025 list; up 24 since FY2020.
35	MTU Aero Engines Holding AG Through Vericor Power Systems LLC Top agencies Navy (Department of the Navy)	$729,080	0.5%	Rank history: #35 in FY2022, not on the FY2023 list, #70 in FY2024 and not on the FY2025 list; up 16 since FY2020.
36	Heico Aerospace Corporat 2 awardees, including Rocky Mountain Hydrostatics, LLC and Blue Aerospace LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$705,480	0.5%	Rank history: not on the FY2022–FY2023 lists, #74 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
37	ECI Defense Group, Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$668,719	0.5%	Rank history: not on the FY2022 list, #87 in FY2023, #34 in FY2024 and #34 in FY2025; up 47 since FY2020.
38	Crane Co Through Hydro-Aire Aerospace Corp Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$668,047	0.5%	Rank history: #57 in FY2022, #10 in FY2023, #10 in FY2024 and not on the FY2025 list; down 16 since FY2020.
39	Orbis Sibro Inc. Top agencies Navy (Department of the Navy)	$661,979	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
40	Gardner Denver Nash LLC Top agencies Navy (Department of the Navy)	$645,888	0.5%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
41	Thomas Instrument, Incorporated Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force)	$635,707	0.4%	Rank history: #66 in FY2022, #50 in FY2023, #57 in FY2024 and #77 in FY2025; down 1 since FY2020.
42	Treadwell Corporation (Delaware) Top agencies Navy (Department of the Navy)	$627,234	0.4%	Rank history: #15 in FY2022, #8 in FY2023, #80 in FY2024 and #25 in FY2025; up 309 since FY2020.
43	D & W Marine Systems Management Inc. Top agencies DLA (Defense Logistics Agency)	$614,302	0.4%	Rank history: #27 in FY2022, #39 in FY2023, #48 in FY2024 and not on the FY2025 list; up 95 since FY2020.
44	Rolls-Royce Military Aero Engines Ltd 3 awardees, including Rolls-Royce Marine North America Inc. and Rolls-Royce Solutions America Inc. Top agencies Navy (Department of the Navy)	$605,765	0.4%	Rank history: not on the FY2022 list, #15 in FY2023 and not on the FY2024–FY2025 lists; down 7 since FY2020.
45	Janels Industries Inc. Top agencies DLA (Defense Logistics Agency)	$600,382	0.4%	Rank history: #25 in FY2022, #52 in FY2023, #44 in FY2024 and #26 in FY2025; up 3 since FY2020.
46	Ronal Industries, Inc. Top agencies DLA (Defense Logistics Agency)	$591,949	0.4%	Rank history: #94 in FY2022 and not on the FY2023–FY2025 lists; up 17 since FY2020.
47	H C Merchandisers, Inc. Top agencies DLA (Defense Logistics Agency)	$562,062	0.4%	Rank history: #68 in FY2022, #60 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
48	Metrex Valve Corp. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$541,007	0.4%	Rank history: not on the FY2022 list, #45 in FY2023 and not on the FY2024–FY2025 lists; up 29 since FY2020.
49	Nibco Inc. Through Milwaukee Valve Company, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$537,026	0.4%	Rank history: #50 in FY2022, #22 in FY2023, #56 in FY2024 and not on the FY2025 list; down 11 since FY2020.
50	Esco Technologies Inc. 2 awardees, including Vacco Industries Top agencies DLA (Defense Logistics Agency)	$521,187	0.4%	Rank history: #13 in FY2022, #55 in FY2023, not on the FY2024 list and #35 in FY2025; down 5 since FY2020.
51	ES3 Prime Logistics Group Inc. Top agencies DLA (Defense Logistics Agency)	$518,167	0.4%	Rank history: not on the FY2022–FY2025 lists; up 11 since FY2020.
52	Water Technology Resources, Inc. Top agencies USAF (Department of the Air Force)	$513,750	0.4%	Rank history: not on the FY2022–FY2025 lists; up 68 since FY2020.
53	Robert Bosch Stiftung Gesellschaft MIT Beschrankter Haftung Through Bosch Rexroth Corporation Top agencies Army (Department of the Army)	$510,202	0.4%	Rank history: not on the FY2022–FY2025 lists; down 41 since FY2020.
54	Bollinger Shipyards Inc Through Chand, L.L.C. Top agencies DLA (Defense Logistics Agency)	$509,804	0.4%	Rank history: not on the FY2022 list, #78 in FY2023 and not on the FY2024–FY2025 lists; up 82 since FY2020.
55	Derbyshire Machine & Tool Co Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$464,650	0.3%	Rank history: #52 in FY2022, #43 in FY2023, #52 in FY2024 and #55 in FY2025; new, not ranked in FY2020.
56	Pioneer Industries, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$455,730	0.3%	Rank history: #83 in FY2022, #83 in FY2023 and not on the FY2024–FY2025 lists; up 16 since FY2020.
57	Jgils, LLC Top agencies DLA (Defense Logistics Agency)	$426,036	0.3%	Rank history: not on the FY2022 list, #82 in FY2023, #96 in FY2024 and #49 in FY2025; up 16 since FY2020.
58	Aero Precision Industries LLC Through Allclear Aerospace & Defense, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$420,862	0.3%	Rank history: not on the FY2022 list, #48 in FY2023, #47 in FY2024 and not on the FY2025 list; up 190 since FY2020.
59	PCX Inc. Top agencies DLA (Defense Logistics Agency)	$412,894	0.3%	Rank history: not on the FY2022–FY2023 lists, #66 in FY2024 and #87 in FY2025; up 37 since FY2020.
60	Hunt Valve Company, Inc. 2 awardees, including Pima Valve, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$412,508	0.3%	Rank history: #71 in FY2022, #41 in FY2023, #63 in FY2024 and #24 in FY2025; up 42 since FY2020.
61	Tork Systems Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$409,007	0.3%	Rank history: not on the FY2022–FY2025 lists; down 30 since FY2020.
62	Brown Helicopter, Inc. Top agencies DLA (Defense Logistics Agency)	$407,477	0.3%	Rank history: #64 in FY2022, #92 in FY2023, #78 in FY2024 and #91 in FY2025; up 20 since FY2020.
63	R & M Government Services Inc. Top agencies DLA (Defense Logistics Agency)	$397,819	0.3%	Rank history: not on the FY2022–FY2024 lists and #94 in FY2025; down 8 since FY2020.
64	Phoenix Trading Inc. Top agencies DLA (Defense Logistics Agency)	$395,730	0.3%	Rank history: #47 in FY2022, #14 in FY2023, #25 in FY2024 and #21 in FY2025; up 21 since FY2020.
65	Brighton Cromwell LLC Top agencies DLA (Defense Logistics Agency)	$363,891	0.3%	Rank history: #90 in FY2022 and not on the FY2023–FY2025 lists; up 4 since FY2020.
66	Argo Turboserve Corporation Top agencies DLA (Defense Logistics Agency)	$319,301	0.2%	Rank history: #55 in FY2022, #90 in FY2023 and not on the FY2024–FY2025 lists; up 83 since FY2020.
67	Painter Tool Incorporated Top agencies Navy (Department of the Navy)	$315,384	0.2%	Rank history: not on the FY2022–FY2025 lists; up 102 since FY2020.
68	Aerotec Industries Top agencies Army (Department of the Army) DLA (Defense Logistics Agency)	$314,585	0.2%	Rank history: not on the FY2022 list, #81 in FY2023 and not on the FY2024–FY2025 lists; up 147 since FY2020.
69	Statz Corp Top agencies DLA (Defense Logistics Agency)	$314,320	0.2%	Rank history: #75 in FY2022 and not on the FY2023–FY2025 lists; down 26 since FY2020.
70	BBA Aviation PLC Through Ontic Engineering & Manufacturing, Inc. Top agencies DLA (Defense Logistics Agency)	$305,838	0.2%	Rank history: #43 in FY2022, not on the FY2023 list, #65 in FY2024 and not on the FY2025 list; unchanged since FY2020.
71	R P M Supply Corporation Top agencies Navy (Department of the Navy)	$293,028	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
72	Aerocontrolex Group, Inc. Top agencies DLA (Defense Logistics Agency)	$292,468	0.2%	Rank history: #26 in FY2022, #49 in FY2023, not on the FY2024 list and #18 in FY2025; new, not ranked in FY2020.
73	Curtiss-Wright Corporation 4 awardees, including Curtiss-Wright Electro-Mechanical Corp Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$283,357	0.2%	Rank history: #80 in FY2022 and not on the FY2023–FY2025 lists; up 51 since FY2020.
74	Federal Resources Supply Company Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$278,535	0.2%	Rank history: not on the FY2022–FY2025 lists; up 53 since FY2020.
75	Triad Technologies LLC Top agencies DLA (Defense Logistics Agency)	$277,901	0.2%	Rank history: not on the FY2022–FY2025 lists; up 315 since FY2020.
76	Oshkosh Corp 2 awardees, including Oshkosh Defense LLC and JLG Industries, Inc. Top agencies DLA (Defense Logistics Agency)	$277,610	0.2%	Rank history: #44 in FY2022, #30 in FY2023, #28 in FY2024 and #43 in FY2025; down 29 since FY2020.
77	Science Applications International Corporation Through Asrc Federal Facilities Logistics, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$274,603	0.2%	Rank history: #78 in FY2022 and not on the FY2023–FY2025 lists; down 52 since FY2020.
78	Aqua-Chem, Inc. Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$273,999	0.2%	Rank history: #67 in FY2022, #84 in FY2023 and not on the FY2024–FY2025 lists; up 8 since FY2020.
79	Appleton Marine Inc. Top agencies DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$270,491	0.2%	Rank history: not on the FY2022–FY2023 lists, #91 in FY2024 and not on the FY2025 list; up 61 since FY2020.
80	Aerokool Aviation Corporation Top agencies USAF (Department of the Air Force)	$269,111	0.2%	Rank history: #91 in FY2022, #64 in FY2023, #77 in FY2024 and not on the FY2025 list; down 1 since FY2020.
81	Lynn Electronics LLC Top agencies DLA (Defense Logistics Agency)	$266,290	0.2%	Rank history: not on the FY2022–FY2025 lists; down 22 since FY2020.
82	Tri-State Technical Sales Corp Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$255,229	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
83	Tat Technologies Ltd Top agencies DLA (Defense Logistics Agency)	$251,450	0.2%	Rank history: not on the FY2022–FY2025 lists; up 10 since FY2020.
84	Megabite Electronics, Inc. Top agencies DLA (Defense Logistics Agency)	$248,342	0.2%	Rank history: #95 in FY2022 and not on the FY2023–FY2025 lists; up 13 since FY2020.
85	Phoenix Systems Engineering Inc. Top agencies DLA (Defense Logistics Agency)	$239,517	0.2%	Rank history: #62 in FY2022, #68 in FY2023, #83 in FY2024 and not on the FY2025 list; down 41 since FY2020.
86	Ives Equipment, LLC Top agencies DLA (Defense Logistics Agency)	$238,598	0.2%	Rank history: #79 in FY2022, #67 in FY2023 and not on the FY2024–FY2025 lists; down 44 since FY2020.
87	Military Supply Company LLC Top agencies DLA (Defense Logistics Agency)	$234,661	0.2%	Rank history: #40 in FY2022, #58 in FY2023, #71 in FY2024 and not on the FY2025 list; up 72 since FY2020.
88	Ares Distribution, LLC Top agencies VA (Department of Veterans Affairs)	$226,404	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
89	United Dynamics, Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$223,815	0.2%	Rank history: #88 in FY2022, #94 in FY2023, #97 in FY2024 and #90 in FY2025; up 109 since FY2020.
90	Valveco Inc. Through Hunt Valve Company, Inc. Top agencies DLA (Defense Logistics Agency)	$221,115	0.2%	Rank history: not on the FY2022–FY2025 lists; up 8 since FY2020.
91	Westsim Engineering, Inc. Top agencies DLA (Defense Logistics Agency)	$214,334	0.2%	Rank history: not on the FY2022 list, #85 in FY2023 and not on the FY2024–FY2025 lists; up 181 since FY2020.
92	Black Bay Aerospace LLC Top agencies DLA (Defense Logistics Agency)	$213,687	0.2%	Rank history: #86 in FY2022 and not on the FY2023–FY2025 lists; up 13 since FY2020.
93	M / V Marine, Inc. Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$212,337	0.2%	Rank history: not on the FY2022–FY2025 lists; up 116 since FY2020.
94	Dircksen & Associates, Inc. Top agencies DLA (Defense Logistics Agency)	$210,207	0.1%	Rank history: not on the FY2022–FY2025 lists; up 102 since FY2020.
95	Sarco Inc. Top agencies DLA (Defense Logistics Agency)	$200,982	0.1%	Rank history: not on the FY2022–FY2024 lists and #48 in FY2025; down 14 since FY2020.
96	Gigli Enterprises, Inc. Top agencies DLA (Defense Logistics Agency)	$195,473	0.1%	Rank history: #87 in FY2022, #40 in FY2023, #98 in FY2024 and not on the FY2025 list; down 4 since FY2020.
97	SAFRAN Through Safran Electrical Components Canada Inc. Top agencies DLA (Defense Logistics Agency)	$193,155	0.1%	Rank history: not on the FY2022–FY2025 lists; up 255 since FY2020.
98	Texas Aerospace Services Inc. Top agencies USAF (Department of the Air Force)	$180,423	0.1%	Rank history: not on the FY2022 list, #76 in FY2023, not on the FY2024 list and #98 in FY2025; down 22 since FY2020.
99	Westfield Hydraulics Inc. Top agencies DLA (Defense Logistics Agency)	$177,167	0.1%	Rank history: #70 in FY2022, #51 in FY2023, #89 in FY2024 and not on the FY2025 list; up 103 since FY2020.
100	Service & Sales Inc. Top agencies DLA (Defense Logistics Agency)	$169,580	0.1%	Rank history: #74 in FY2022, not on the FY2023 list, #53 in FY2024 and not on the FY2025 list; up 28 since FY2020.

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100 of 500 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 $142 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 4810 contractors in FY2021?

1. Parker-Hannifin Corporation ($12.2M), 2. Jamaica Bearings Co., Inc. ($9.2M), 3. Kampi Components Co Inc. ($8.34M), 4. Transdigm Group Incorporated ($6.92M), 5. Sargent Aerospace & Defense LLC ($6.22M), 6. RTX Corporation ($5.64M), 7. Honeywell International Inc. ($5.39M), 8. Marotta Controls Inc. ($4.31M), 9. Moog Inc. ($3.46M), 10. JA Moody LLC ($3.28M).

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