Top 100 Contractors in NAICS 332991: Ball and Roller Bearing Manufacturing, FY2021

Name: Top 100 Contractors in NAICS 332991: Ball and Roller Bearing Manufacturing, FY2021
Creator: GovTribe

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

The top 10 won 49% of FY2021 NAICS 332991 contract dollars

Contract obligations: $184,996,269 Net of deobligations, by contracts coded NAICS 332991
Contractors: 776 Parent companies with an obligation
Largest contractor: RTX Corporation $47.5 million, 20.2% 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	RTX Corporation 10 awardees, including Hamilton Sundstrand Corporation, Goodrich Corporation and Collins Engine Nozzles, Inc. Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency) Navy (Department of the Navy)	$47,468,978	20.2%	Rank history: #1 in FY2022, #3 in FY2023, #2 in FY2024 and #4 in FY2025; unchanged since FY2020.
2	Jamaica Bearings Co., Inc. 2 awardees Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$21,045,796	8.9%	Rank history: #2 in FY2022, #1 in FY2023, #1 in FY2024 and #1 in FY2025; unchanged since FY2020.
3	The Timken Company 7 awardees, including MPB Corporation and Timken Gears & Services Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy) NASA (National Aeronautics and Space Administration)	$9,819,233	4.2%	Rank history: #3 in FY2022, #6 in FY2023, #7 in FY2024 and #6 in FY2025; up 3 since FY2020.
4	Sargent Aerospace & Defense LLC 9 awardees, including RBC Transport Dynamics Corp, RBC Bearings Incorporated and Roller Bearing Company of America, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$8,337,944	3.5%	Rank history: #6 in FY2022, #7 in FY2023, #12 in FY2024 and not on the FY2025 list; unchanged since FY2020.
5	Mechatronics, Inc. 2 awardees Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$6,623,946	2.8%	Rank history: #5 in FY2022, #4 in FY2023, #3 in FY2024 and #2 in FY2025; up 2 since FY2020.
6	Graham Corp Through Barber-Nichols, LLC Top agencies Navy (Department of the Navy)	$5,219,838	2.2%	Rank history: #11 in FY2022, #9 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
7	Schaeffler Group USA Inc 2 awardees, including Schaeffler Aerospace USA Corp and Schaeffler Aerospace Canada Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$5,126,806	2.2%	Rank history: #12 in FY2022, #54 in FY2023 and not on the FY2024–FY2025 lists; up 4 since FY2020.
8	Rolls-Royce Military Aero Engines Ltd 3 awardees, including Rolls-Royce PLC, Rolls-Royce Marine North America Inc. and Rolls-Royce Solutions America Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$4,383,812	1.9%	Rank history: #7 in FY2022 and not on the FY2023–FY2025 lists; down 5 since FY2020.
9	AB SKF 3 awardees, including SKF USA Inc. and Kaydon Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$4,353,486	1.8%	Rank history: #14 in FY2022 and not on the FY2023–FY2025 lists; down 4 since FY2020.
10	Metaltek International, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$2,961,333	1.3%	Rank history: #10 in FY2022, #56 in FY2023, #48 in FY2024 and #46 in FY2025; up 28 since FY2020.
11	Goodrich Corporation Top agencies USAF (Department of the Air Force) DLA (Defense Logistics Agency)	$2,843,450	1.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
12	Parker-Hannifin Corporation Through Lord Corporation Top agencies DLA (Defense Logistics Agency)	$2,588,673	1.1%	Rank history: #8 in FY2022, #2 in FY2023 and not on the FY2024–FY2025 lists; up 191 since FY2020.
13	Rolls-Royce PLC Top agencies DLA (Defense Logistics Agency)	$2,340,220	1.0%	Rank history: #43 in FY2022 and not on the FY2023–FY2025 lists; down 4 since FY2020.
14	Wartsila Defense Inc. Through Defense Maritime Solutions, Inc. Top agencies DLA (Defense Logistics Agency)	$2,094,162	0.9%	Rank history: #17 in FY2022, #12 in FY2023 and not on the FY2024–FY2025 lists; up 44 since FY2020.
15	Pelican Products, Inc. Top agencies DLA (Defense Logistics Agency)	$2,063,588	0.9%	Rank history: #15 in FY2022, #15 in FY2023, #13 in FY2024 and #18 in FY2025; down 5 since FY2020.
16	Dela Technology Corporation Top agencies DLA (Defense Logistics Agency)	$1,978,161	0.8%	Rank history: #70 in FY2022, #25 in FY2023, #80 in FY2024 and #43 in FY2025; unchanged since FY2020.
17	Minebea Co. Ltd. 2 awardees, including New Hampshire Ball Bearings Inc. Top agencies DLA (Defense Logistics Agency)	$1,881,821	0.8%	Rank history: #16 in FY2022 and not on the FY2023–FY2025 lists; down 9 since FY2020.
18	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency)	$1,851,534	0.8%	Rank history: #29 in FY2022, #23 in FY2023, #30 in FY2024 and #27 in FY2025; up 15 since FY2020.
19	Woodward Governor Company 3 awardees, including Woodward, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,689,661	0.7%	Rank history: #13 in FY2022 and not on the FY2023–FY2025 lists; up 12 since FY2020.
20	Bollinger Shipyards Inc Through Chand, L.L.C. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,656,988	0.7%	Rank history: #30 in FY2022, #18 in FY2023, #83 in FY2024 and not on the FY2025 list; up 20 since FY2020.
21	Duramax Marine, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,255,814	0.5%	Rank history: #20 in FY2022, #20 in FY2023, #15 in FY2024 and #8 in FY2025; up 167 since FY2020.
22	Triman Industries Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,108,352	0.5%	Rank history: #32 in FY2022, #24 in FY2023, #27 in FY2024 and #14 in FY2025; up 12 since FY2020.
23	Argo Turboserve Corporation 2 awardees Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$993,593	0.4%	Rank history: #27 in FY2022, #22 in FY2023, #36 in FY2024 and not on the FY2025 list; up 4 since FY2020.
24	Heico Aerospace Corporat 3 awardees, including Seal Dynamics LLC, Jet Avion Corp and Mcclain International Inc. Top agencies DLA (Defense Logistics Agency)	$993,197	0.4%	Rank history: #21 in FY2022, #17 in FY2023, #37 in FY2024 and #82 in FY2025; up 5 since FY2020.
25	Pioneer Industries, LLC Top agencies DLA (Defense Logistics Agency)	$985,830	0.4%	Rank history: #33 in FY2022, #79 in FY2023, #57 in FY2024 and #25 in FY2025; down 7 since FY2020.
26	Wencor Group LLC 2 awardees, including Wencor, LLC and Kitco LLC Top agencies DLA (Defense Logistics Agency)	$979,241	0.4%	Rank history: #37 in FY2022 and not on the FY2023–FY2025 lists; down 1 since FY2020.
27	Transaero, Inc. Top agencies DLA (Defense Logistics Agency)	$978,968	0.4%	Rank history: #44 in FY2022, not on the FY2023 list, #45 in FY2024 and #12 in FY2025; down 13 since FY2020.
28	Lynn Electronics LLC Top agencies DLA (Defense Logistics Agency)	$904,606	0.4%	Rank history: #45 in FY2022 and not on the FY2023–FY2025 lists; up 13 since FY2020.
29	Gwilliam Company, Inc. Top agencies DLA (Defense Logistics Agency)	$856,954	0.4%	Rank history: #36 in FY2022, #50 in FY2023, #39 in FY2024 and #35 in FY2025; down 7 since FY2020.
30	Webb-Stiles Company Top agencies Army (Department of the Army)	$842,758	0.4%	Rank history: not on the FY2022–FY2025 lists; up 280 since FY2020.
31	A.m.s. Network, LLC 2 awardees Top agencies DLA (Defense Logistics Agency)	$802,464	0.3%	Rank history: #86 in FY2022 and not on the FY2023–FY2025 lists; up 29 since FY2020.
32	Echelon Supply and Service, Inc. Top agencies DLA (Defense Logistics Agency)	$761,762	0.3%	Rank history: #62 in FY2022, #42 in FY2023, #74 in FY2024 and not on the FY2025 list; down 13 since FY2020.
33	R.a. Rodriguez, Incorporated Top agencies DLA (Defense Logistics Agency)	$744,786	0.3%	Rank history: #46 in FY2022, #37 in FY2023, #40 in FY2024 and #42 in FY2025; up 12 since FY2020.
34	American Bearing and Components LLC Top agencies DLA (Defense Logistics Agency)	$727,308	0.3%	Rank history: #25 in FY2022, #13 in FY2023, #20 in FY2024 and #26 in FY2025; down 17 since FY2020.
35	Beam Distributing, Inc. Top agencies DLA (Defense Logistics Agency)	$659,527	0.3%	Rank history: #47 in FY2022, #41 in FY2023, #49 in FY2024 and #95 in FY2025; up 26 since FY2020.
36	Midamerica Fab & Machine LLC Top agencies DLA (Defense Logistics Agency)	$651,111	0.3%	Rank history: not on the FY2022–FY2025 lists; up 329 since FY2020.
37	The Boeing Company 6 awardees, including Boeing Distribution Services X, Inc., Boeing Distribution, Inc. and Boeing Distribution Services, Inc. Top agencies DLA (Defense Logistics Agency)	$649,237	0.3%	Rank history: not on the FY2022 list, #31 in FY2023, #18 in FY2024 and #51 in FY2025; up 12 since FY2020.
38	Advex Corporation Top agencies Navy (Department of the Navy)	$617,148	0.3%	Rank history: not on the FY2022–FY2025 lists; up 41 since FY2020.
39	Brown Helicopter, Inc. Top agencies DLA (Defense Logistics Agency)	$594,401	0.3%	Rank history: #38 in FY2022, #45 in FY2023, #21 in FY2024 and #21 in FY2025; down 18 since FY2020.
40	Government of Canada Through Canadian Commercial Corporation Top agencies DLA (Defense Logistics Agency)	$539,236	0.2%	Rank history: #76 in FY2022, #94 in FY2023, #29 in FY2024 and not on the FY2025 list; down 8 since FY2020.
41	Aeroforce Logistics LLC Top agencies DLA (Defense Logistics Agency)	$533,368	0.2%	Rank history: not on the FY2022–FY2024 lists and #41 in FY2025; up 64 since FY2020.
42	Timken Aurora Bearing Company Top agencies DLA (Defense Logistics Agency)	$519,725	0.2%	Rank history: #79 in FY2022 and not on the FY2023–FY2025 lists; up 75 since FY2020.
43	Transdigm Group Incorporated 7 awardees, including Arkwin Industries, Inc., Hartwell Corporation and Tactair Fluid Controls Inc. Top agencies DLA (Defense Logistics Agency)	$512,968	0.2%	Rank history: #48 in FY2022, #49 in FY2023 and not on the FY2024–FY2025 lists; up 61 since FY2020.
44	Kaman Corp 3 awardees, including Kamatics Corporation and Kaman Aerospace Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$495,587	0.2%	Rank history: #58 in FY2022, not on the FY2023–FY2024 lists and #48 in FY2025; down 18 since FY2020.
45	Dutch Valley Supply Co. Top agencies DLA (Defense Logistics Agency)	$477,964	0.2%	Rank history: #65 in FY2022, not on the FY2023 list, #47 in FY2024 and not on the FY2025 list; up 18 since FY2020.
46	Statz Corp Top agencies DLA (Defense Logistics Agency)	$476,849	0.2%	Rank history: #71 in FY2022, #39 in FY2023, #24 in FY2024 and #34 in FY2025; up 10 since FY2020.
47	Accurate Bushing Company, Inc. Top agencies DLA (Defense Logistics Agency)	$462,547	0.2%	Rank history: #34 in FY2022, #46 in FY2023, #56 in FY2024 and #84 in FY2025; down 23 since FY2020.
48	Aviarms Support Corp Top agencies DLA (Defense Logistics Agency)	$455,132	0.2%	Rank history: #50 in FY2022, #59 in FY2023, #32 in FY2024 and #37 in FY2025; down 28 since FY2020.
49	Aerospace Industries LLC Top agencies DLA (Defense Logistics Agency)	$454,283	0.2%	Rank history: not on the FY2022–FY2025 lists; up 6 since FY2020.
50	Norfolk Bearings & Supply Co Inc. Top agencies DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$441,436	0.2%	Rank history: #28 in FY2022, #69 in FY2023, #93 in FY2024 and #88 in FY2025; up 22 since FY2020.
51	BBA Aviation PLC Through Ontic Engineering & Manufacturing, Inc. Top agencies DLA (Defense Logistics Agency)	$417,576	0.2%	Rank history: not on the FY2022 list, #5 in FY2023, #58 in FY2024 and not on the FY2025 list; up 49 since FY2020.
52	Millers Island Propeller, Incorporated Top agencies DHS (Department of Homeland Security)	$395,200	0.2%	Rank history: not on the FY2022–FY2025 lists; up 282 since FY2020.
53	Integrated Procurement Technologies Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$370,096	0.2%	Rank history: not on the FY2022–FY2025 lists; up 128 since FY2020.
54	Applied Industrial Technologies, Inc. 2 awardees Top agencies DLA (Defense Logistics Agency) DOT (Department of Transportation)	$368,316	0.2%	Rank history: #99 in FY2022, #98 in FY2023, #44 in FY2024 and #33 in FY2025; up 47 since FY2020.
55	A.f. Machine & Tool Co., Inc. Top agencies DLA (Defense Logistics Agency)	$367,370	0.2%	Rank history: #80 in FY2022, #64 in FY2023 and not on the FY2024–FY2025 lists; up 241 since FY2020.
56	Ll1Way, LLC Top agencies DLA (Defense Logistics Agency)	$365,547	0.2%	Rank history: #57 in FY2022, #47 in FY2023 and not on the FY2024–FY2025 lists; down 6 since FY2020.
57	A.j. Associates Manufacturing & Engineering Co. Inc. Top agencies DLA (Defense Logistics Agency)	$365,417	0.2%	Rank history: #51 in FY2022, #82 in FY2023, not on the FY2024 list and #92 in FY2025; up 73 since FY2020.
58	Dupont De Nemours, Inc. 2 awardees, including Dupont Specialty Products Usa, LLC Top agencies DLA (Defense Logistics Agency)	$360,889	0.2%	Rank history: #24 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
59	L3Harris Technologies, Inc. 5 awardees, including Emcore Space & Navigation LLC, L3Harris Technologies Integrated Systems L.P. and Acron Aviation, Inc. Top agencies DLA (Defense Logistics Agency)	$356,092	0.2%	Rank history: not on the FY2022–FY2025 lists; up 423 since FY2020.
60	Marisco, Ltd. Through American Metal Bearing Co Top agencies Navy (Department of the Navy)	$328,908	0.1%	Rank history: not on the FY2022 list, #33 in FY2023, #38 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
61	Rexnord Industries LLC 3 awardees Top agencies DLA (Defense Logistics Agency)	$325,715	0.1%	Rank history: #75 in FY2022 and not on the FY2023–FY2025 lists; down 24 since FY2020.
62	Hamilton Sundstrand Corporation Top agencies DLA (Defense Logistics Agency)	$317,175	0.1%	Rank history: #82 in FY2022 and not on the FY2023–FY2025 lists; down 49 since FY2020.
63	VC Displays, Inc. Top agencies DLA (Defense Logistics Agency)	$315,930	0.1%	Rank history: #78 in FY2022, not on the FY2023–FY2024 lists and #65 in FY2025; down 16 since FY2020.
64	Santasalo Gears Inc. Through David Brown Santasalo USA Inc. Top agencies Navy (Department of the Navy)	$308,963	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
65	Apex Pinnacle Corp Top agencies DLA (Defense Logistics Agency)	$302,926	0.1%	Rank history: #41 in FY2022, #66 in FY2023, #55 in FY2024 and #44 in FY2025; down 29 since FY2020.
66	Cummins Aerospace, LLC Top agencies DLA (Defense Logistics Agency)	$291,412	0.1%	Rank history: #23 in FY2022, not on the FY2023–FY2024 lists and #93 in FY2025; up 166 since FY2020.
67	Penn Detroit Diesel Allison LLC Through Penn Power Group LLC Top agencies DLA (Defense Logistics Agency)	$286,635	0.1%	Rank history: not on the FY2022 list, #71 in FY2023 and not on the FY2024–FY2025 lists; down 14 since FY2020.
68	CM Manufacturing Inc. Top agencies DLA (Defense Logistics Agency)	$283,630	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
69	C & C Metals Engineering Inc. Top agencies DLA (Defense Logistics Agency)	$279,921	0.1%	Rank history: #40 in FY2022, #60 in FY2023, #52 in FY2024 and #61 in FY2025; down 2 since FY2020.
70	Houston Drive Train Vehicle Component Sales, Inc. Top agencies DLA (Defense Logistics Agency)	$265,604	0.1%	Rank history: #61 in FY2022, #63 in FY2023 and not on the FY2024–FY2025 lists; up 16 since FY2020.
71	A Papish Incorporated Through Radial Bearing Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$265,225	0.1%	Rank history: not on the FY2022–FY2025 lists; up 22 since FY2020.
72	Janels Industries Inc. Top agencies DLA (Defense Logistics Agency)	$255,779	0.1%	Rank history: #39 in FY2022, #90 in FY2023, #70 in FY2024 and #40 in FY2025; down 60 since FY2020.
73	Galaxy Die and Engineering, Inc. Top agencies DLA (Defense Logistics Agency)	$248,433	0.1%	Rank history: #53 in FY2022, #73 in FY2023, #95 in FY2024 and not on the FY2025 list; up 33 since FY2020.
74	R & M Government Services Inc. Top agencies DLA (Defense Logistics Agency)	$248,020	0.1%	Rank history: #94 in FY2022, #26 in FY2023, #11 in FY2024 and #31 in FY2025; new, not ranked in FY2020.
75	Airtronics, LLC Top agencies DLA (Defense Logistics Agency)	$247,029	0.1%	Rank history: not on the FY2022 list, #93 in FY2023, not on the FY2024 list and #78 in FY2025; new, not ranked in FY2020.
76	Hansome Energy Systems Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$238,490	0.1%	Rank history: #31 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
77	WKF (Friedman) Enterprises, Inc. 2 awardees Top agencies DLA (Defense Logistics Agency)	$235,704	0.1%	Rank history: not on the FY2022–FY2024 lists and #60 in FY2025; down 35 since FY2020.
78	Transupport Inc. Top agencies DLA (Defense Logistics Agency)	$234,475	0.1%	Rank history: #42 in FY2022, #36 in FY2023, #46 in FY2024 and not on the FY2025 list; down 34 since FY2020.
79	Kingsbury Inc. Top agencies Navy (Department of the Navy)	$233,850	0.1%	Rank history: not on the FY2022 list, #95 in FY2023, #62 in FY2024 and not on the FY2025 list; up 77 since FY2020.
80	Blue Cord Logistic Strategies Inc. Top agencies DLA (Defense Logistics Agency)	$227,778	0.1%	Rank history: not on the FY2022–FY2025 lists; up 154 since FY2020.
81	Ruta Supplies Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$225,413	0.1%	Rank history: not on the FY2022–FY2024 lists and #86 in FY2025; up 2 since FY2020.
82	Berkshire Hathaway Inc. Through Fatigue Technology, Inc. Top agencies DLA (Defense Logistics Agency)	$224,273	0.1%	Rank history: not on the FY2022–FY2025 lists; up 14 since FY2020.
83	Brighton Cromwell LLC Top agencies DLA (Defense Logistics Agency)	$222,975	0.1%	Rank history: not on the FY2022–FY2025 lists; down 31 since FY2020.
84	Science Applications International Corporation Through Asrc Federal Facilities Logistics, LLC Top agencies DLA (Defense Logistics Agency)	$219,782	0.1%	Rank history: #69 in FY2022, #32 in FY2023 and not on the FY2024–FY2025 lists; down 8 since FY2020.
85	D.w. Clark, Inc. Top agencies DLA (Defense Logistics Agency)	$217,800	0.1%	Rank history: not on the FY2022–FY2025 lists; up 31 since FY2020.
86	Hoosier Industrial Supply, Inc. Top agencies DLA (Defense Logistics Agency)	$216,729	0.1%	Rank history: not on the FY2022–FY2023 lists, #94 in FY2024 and #53 in FY2025; down 24 since FY2020.
87	Schatz Bearing Corporation Top agencies DLA (Defense Logistics Agency)	$210,336	0.1%	Rank history: #98 in FY2022 and not on the FY2023–FY2025 lists; up 15 since FY2020.
88	Genuine Parts Company 5 awardees, including Motion Industries, Inc. and Shuster Corporation Top agencies DOT (Department of Transportation) Navy (Department of the Navy) DLA (Defense Logistics Agency)	$209,874	0.1%	Rank history: not on the FY2022–FY2025 lists; up 34 since FY2020.
89	Navpar Inc. Top agencies DLA (Defense Logistics Agency)	$207,831	0.1%	Rank history: #64 in FY2022, not on the FY2023–FY2024 lists and #89 in FY2025; new, not ranked in FY2020.
90	Linmarr Associates, Inc. Top agencies DLA (Defense Logistics Agency)	$204,873	0.1%	Rank history: #4 in FY2022, #80 in FY2023, #84 in FY2024 and #36 in FY2025; down 60 since FY2020.
91	Aero Precision Industries LLC 2 awardees, including Allclear Aerospace & Defense, Inc. Top agencies DLA (Defense Logistics Agency)	$198,147	0.1%	Rank history: not on the FY2022 list, #72 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
92	W and G Machine Company, Incorporated Top agencies DLA (Defense Logistics Agency)	$189,622	0.1%	Rank history: not on the FY2022–FY2025 lists; down 1 since FY2020.
93	Richardson Precision West Inc. Top agencies DLA (Defense Logistics Agency)	$185,950	0.1%	Rank history: not on the FY2022–FY2025 lists; up 180 since FY2020.
94	General Dynamics Corporation 7 awardees, including General Dynamics Land Systems - Canada Corporation, General Dynamics Land Systems Inc. and General Dynamics-Ots, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$185,839	0.1%	Rank history: #52 in FY2022 and not on the FY2023–FY2025 lists; down 71 since FY2020.
95	Lake Shore Systems, Inc. Top agencies DLA (Defense Logistics Agency)	$181,218	0.1%	Rank history: #81 in FY2022 and not on the FY2023–FY2025 lists; down 47 since FY2020.
96	MPB Corp 2 awardees Top agencies DLA (Defense Logistics Agency)	$180,795	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
97	Larkos Packing and Distribution Inc. Top agencies DLA (Defense Logistics Agency)	$179,838	0.1%	Rank history: not on the FY2022 list, #92 in FY2023, #59 in FY2024 and #79 in FY2025; up 71 since FY2020.
98	Taper Roller Bearings Inc. Top agencies DLA (Defense Logistics Agency)	$171,077	0.1%	Rank history: not on the FY2022–FY2025 lists; up 206 since FY2020.
99	Paramount Machine Company, Inc. Top agencies DLA (Defense Logistics Agency)	$165,729	0.1%	Rank history: #73 in FY2022, #58 in FY2023 and not on the FY2024–FY2025 lists; down 60 since FY2020.
100	TNL Sales LLC Top agencies DLA (Defense Logistics Agency)	$162,508	0.1%	Rank history: #85 in FY2022, not on the FY2023 list, #77 in FY2024 and #50 in FY2025; up 40 since FY2020.

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100 of 776 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 $235 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 NAICS 332991 contractors in FY2021?

1. RTX Corporation ($47.5M), 2. Jamaica Bearings Co., Inc. ($21M), 3. The Timken Company ($9.82M), 4. Sargent Aerospace & Defense LLC ($8.34M), 5. Mechatronics, Inc. ($6.62M), 6. Graham Corp ($5.22M), 7. Schaeffler Group USA Inc ($5.13M), 8. Rolls-Royce Military Aero Engines Ltd ($4.38M), 9. AB SKF ($4.35M), 10. Metaltek International, Inc. ($2.96M).

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