Top 100 Contractors in NAICS 333613: Mechanical Power Transmission Equipment Manufacturing, FY2021

Name: Top 100 Contractors in NAICS 333613: Mechanical Power Transmission Equipment Manufacturing, FY2021
Creator: GovTribe

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

The top 10 won 63% of FY2021 NAICS 333613 contract dollars

Contract obligations: $240,431,416 Net of deobligations, by contracts coded NAICS 333613
Contractors: 867 Parent companies with an obligation
Largest contractor: Allison Transmission Inc. $123 million, 47.1% 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	Allison Transmission Inc. Top agencies Army (Department of the Army)	$122,547,843	47.1%	Rank history: #1 in FY2022 and not on the FY2023–FY2025 lists; unchanged since FY2020.
2	Kampi Components Co Inc. Top agencies DLA (Defense Logistics Agency)	$12,785,318	4.9%	Rank history: #3 in FY2022, #3 in FY2023, #3 in FY2024 and #6 in FY2025; up 5 since FY2020.
3	General Electric Company 5 awardees, including GE Aviation Systems LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$6,721,379	2.6%	Rank history: #5 in FY2022, #9 in FY2023 and not on the FY2024–FY2025 lists; unchanged since FY2020.
4	Johnson Controls Security Solutions LLC Through Johnson Controls Navy Systems, LLC Top agencies DLA (Defense Logistics Agency)	$4,244,464	1.6%	Rank history: #2 in FY2022, #12 in FY2023 and not on the FY2024–FY2025 lists; up 2 since FY2020.
5	Bollinger Shipyards Inc Through Chand, L.L.C. Top agencies DLA (Defense Logistics Agency)	$3,394,672	1.3%	Rank history: #12 in FY2022, #4 in FY2023 and not on the FY2024–FY2025 lists; up 39 since FY2020.
6	Hackforth Holding GMBH & Co. KG Through American Vulkan Corporation Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$3,132,454	1.2%	Rank history: #46 in FY2022 and not on the FY2023–FY2025 lists; up 7 since FY2020.
7	Management Solutions, L.C. Top agencies DLA (Defense Logistics Agency)	$2,896,989	1.1%	Rank history: not on the FY2022–FY2024 lists and #47 in FY2025; up 3 since FY2020.
8	U.s.a. Spares Inc. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$2,869,908	1.1%	Rank history: #55 in FY2022, #39 in FY2023, #90 in FY2024 and #8 in FY2025; up 35 since FY2020.
9	Kongsberg Gruppen ASA 2 awardees, including Kongsberg Maritime Inc. and Kongsberg Defence & Aerospace AS Top agencies DHS (Department of Homeland Security) DLA (Defense Logistics Agency)	$2,504,405	1.0%	Rank history: #16 in FY2022, #19 in FY2023, #25 in FY2024 and not on the FY2025 list; up 11 since FY2020.
10	Woodward Governor Company 2 awardees, including Woodward HRT Inc. and Woodward, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$2,374,071	0.9%	Rank history: not on the FY2022 list, #11 in FY2023, #9 in FY2024 and not on the FY2025 list; up 9 since FY2020.
11	Air New Zealand Engineering Services Top agencies Navy (Department of the Navy)	$1,940,732	0.7%	Rank history: #63 in FY2022, #63 in FY2023 and not on the FY2024–FY2025 lists; up 10 since FY2020.
12	G.s.e. Dynamics, Inc. Top agencies DLA (Defense Logistics Agency)	$1,843,700	0.7%	Rank history: not on the FY2022–FY2025 lists; up 223 since FY2020.
13	W and G Machine Company, Incorporated Top agencies DLA (Defense Logistics Agency)	$1,834,490	0.7%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
14	Thomas Instrument, Incorporated Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$1,631,452	0.6%	Rank history: #33 in FY2022, #34 in FY2023, not on the FY2024 list and #67 in FY2025; up 94 since FY2020.
15	Janels Industries Inc. Top agencies DLA (Defense Logistics Agency)	$1,542,056	0.6%	Rank history: #11 in FY2022, #8 in FY2023, #12 in FY2024 and #48 in FY2025; up 39 since FY2020.
16	Advance Development & Manufacturing Corporation Top agencies DLA (Defense Logistics Agency)	$1,484,480	0.6%	Rank history: not on the FY2022–FY2023 lists, #46 in FY2024 and not on the FY2025 list; new, not ranked in FY2020.
17	VSE Corporation 3 awardees, including Wheeler Fleet Solutions, Co. and VSE Aviation, Inc. Top agencies DLA (Defense Logistics Agency)	$1,465,731	0.6%	Rank history: not on the FY2022–FY2025 lists; up 67 since FY2020.
18	Hydraulics International, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$1,455,128	0.6%	Rank history: #18 in FY2022, #21 in FY2023, #33 in FY2024 and #33 in FY2025; down 13 since FY2020.
19	Jered LLC Top agencies DLA (Defense Logistics Agency)	$1,319,597	0.5%	Rank history: #53 in FY2022, #23 in FY2023, #32 in FY2024 and not on the FY2025 list; up 93 since FY2020.
20	Jamaica Bearings Co., Inc. 2 awardees Top agencies DLA (Defense Logistics Agency)	$1,297,447	0.5%	Rank history: #19 in FY2022, #36 in FY2023, #7 in FY2024 and #4 in FY2025; up 13 since FY2020.
21	Jgils, LLC Top agencies DLA (Defense Logistics Agency)	$1,191,891	0.5%	Rank history: #38 in FY2022, #25 in FY2023, #28 in FY2024 and #29 in FY2025; up 17 since FY2020.
22	Pioneer Industries, LLC Top agencies DLA (Defense Logistics Agency) DHS (Department of Homeland Security)	$1,188,062	0.5%	Rank history: #9 in FY2022, #22 in FY2023, #20 in FY2024 and #30 in FY2025; up 14 since FY2020.
23	Dela Technology Corporation Top agencies DLA (Defense Logistics Agency)	$1,111,413	0.4%	Rank history: not on the FY2022–FY2024 lists and #78 in FY2025; up 6 since FY2020.
24	Oshkosh Corp 2 awardees, including JLG Industries, Inc. and Oshkosh Defense LLC Top agencies DLA (Defense Logistics Agency)	$1,074,103	0.4%	Rank history: #17 in FY2022, #40 in FY2023, #29 in FY2024 and #41 in FY2025; down 15 since FY2020.
25	W S Darley & Co Top agencies DLA (Defense Logistics Agency)	$1,016,231	0.4%	Rank history: #20 in FY2022, #31 in FY2023, #49 in FY2024 and not on the FY2025 list; up 1 since FY2020.
26	Statz Corp Top agencies DLA (Defense Logistics Agency)	$1,009,993	0.4%	Rank history: #29 in FY2022 and not on the FY2023–FY2025 lists; down 1 since FY2020.
27	Triman Industries Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$984,930	0.4%	Rank history: #13 in FY2022, #18 in FY2023, #11 in FY2024 and #7 in FY2025; down 5 since FY2020.
28	Control Products Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$955,743	0.4%	Rank history: not on the FY2022 list, #81 in FY2023, #42 in FY2024 and #51 in FY2025; up 97 since FY2020.
29	Dover Corporation Through Waukesha Bearings Corporation Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$847,438	0.3%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
30	SAFRAN 5 awardees, including Curtiss-Wright Flow Control Service, LLC, Woodward Canada, Inc. and Safran Power Usa, LLC Top agencies DLA (Defense Logistics Agency) USAF (Department of the Air Force) Navy (Department of the Navy)	$839,999	0.3%	Rank history: #26 in FY2022, not on the FY2023 list, #50 in FY2024 and not on the FY2025 list; up 51 since FY2020.
31	Melton Sales & Service Top agencies DLA (Defense Logistics Agency)	$828,556	0.3%	Rank history: #15 in FY2022, #16 in FY2023, #21 in FY2024 and #14 in FY2025; down 7 since FY2020.
32	Transaero, Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$777,651	0.3%	Rank history: #7 in FY2022, #13 in FY2023, #2 in FY2024 and #26 in FY2025; up 9 since FY2020.
33	Northrop Grumman Corporation 5 awardees, including Northrop Grumman Systems Corporation and Alliant Techsystems Operations LLC Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$742,670	0.3%	Rank history: not on the FY2022–FY2023 lists, #64 in FY2024 and #80 in FY2025; down 18 since FY2020.
34	Moog Inc. 2 awardees Top agencies DLA (Defense Logistics Agency) Army (Department of the Army) Navy (Department of the Navy)	$704,379	0.3%	Rank history: #25 in FY2022, #28 in FY2023, #17 in FY2024 and #69 in FY2025; up 36 since FY2020.
35	Am General LLC Top agencies DLA (Defense Logistics Agency)	$669,106	0.3%	Rank history: not on the FY2022 list, #33 in FY2023, #51 in FY2024 and #18 in FY2025; new, not ranked in FY2020.
36	Linmarr Associates, Inc. Top agencies DLA (Defense Logistics Agency)	$650,142	0.2%	Rank history: #14 in FY2022, #7 in FY2023, #72 in FY2024 and #34 in FY2025; down 32 since FY2020.
37	Industrial Clutch & Brake, Inc. Top agencies DLA (Defense Logistics Agency)	$643,700	0.2%	Rank history: not on the FY2022 list, #82 in FY2023 and not on the FY2024–FY2025 lists; new, not ranked in FY2020.
38	General Dynamics Corporation 5 awardees, including General Dynamics-Ots, Inc., General Dynamics Land Systems - Canada Corporation and Electric Boat Corporation Top agencies DLA (Defense Logistics Agency)	$622,435	0.2%	Rank history: #23 in FY2022, #27 in FY2023, #68 in FY2024 and #35 in FY2025; down 27 since FY2020.
39	Jo-Kell Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$616,383	0.2%	Rank history: #44 in FY2022, not on the FY2023 list, #67 in FY2024 and #31 in FY2025; up 146 since FY2020.
40	VC Displays, Inc. Top agencies DLA (Defense Logistics Agency)	$596,628	0.2%	Rank history: not on the FY2022–FY2025 lists; up 76 since FY2020.
41	Aarcorp Through AAR Supply Chain, Inc. Top agencies DLA (Defense Logistics Agency)	$565,576	0.2%	Rank history: #81 in FY2022 and not on the FY2023–FY2025 lists; up 197 since FY2020.
42	Transdigm Group Incorporated 8 awardees, including Arkwin Industries, Inc., Aerocontrolex Group, Inc. and Duke's Aerospace, Inc. Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$564,711	0.2%	Rank history: #31 in FY2022, #71 in FY2023 and not on the FY2024–FY2025 lists; up 8 since FY2020.
43	Warren Pumps LLC 2 awardees, including Circor Naval Solutions LLC and Portland Valve LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$563,322	0.2%	Rank history: #22 in FY2022 and not on the FY2023–FY2025 lists; up 40 since FY2020.
44	Transupport Inc. Top agencies DLA (Defense Logistics Agency)	$558,250	0.2%	Rank history: #39 in FY2022, #91 in FY2023 and not on the FY2024–FY2025 lists; up 104 since FY2020.
45	Eagle Equipment Corporation Top agencies DLA (Defense Logistics Agency)	$552,553	0.2%	Rank history: #24 in FY2022, #87 in FY2023, #41 in FY2024 and #25 in FY2025; up 232 since FY2020.
46	ZF Marine Propulsion Systems Miramar LLC Top agencies DHS (Department of Homeland Security)	$525,620	0.2%	Rank history: #27 in FY2022, #15 in FY2023, #66 in FY2024 and not on the FY2025 list; up 6 since FY2020.
47	The Rowland Company Top agencies Navy (Department of the Navy) DHS (Department of Homeland Security)	$473,387	0.2%	Rank history: #50 in FY2022 and not on the FY2023–FY2025 lists; up 95 since FY2020.
48	Electro Enterprises Inc. Top agencies DLA (Defense Logistics Agency)	$472,734	0.2%	Rank history: #75 in FY2022, #92 in FY2023, #62 in FY2024 and not on the FY2025 list; up 292 since FY2020.
49	Tecmotiv Corporation Through Tecmotiv (Usa), Inc. Top agencies DLA (Defense Logistics Agency)	$467,236	0.2%	Rank history: #61 in FY2022 and not on the FY2023–FY2025 lists; down 32 since FY2020.
50	The Carlyle Johnson Machine Co, LLC Top agencies Army (Department of the Army)	$436,560	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
51	Aurum Aquila Inc. Top agencies DLA (Defense Logistics Agency)	$427,916	0.2%	Rank history: not on the FY2022 list, #73 in FY2023, not on the FY2024 list and #77 in FY2025; up 89 since FY2020.
52	Phoenix Trading Inc. Top agencies DLA (Defense Logistics Agency)	$424,543	0.2%	Rank history: #71 in FY2022, #57 in FY2023, #98 in FY2024 and not on the FY2025 list; up 67 since FY2020.
53	S I T Corporation Top agencies DLA (Defense Logistics Agency) DOI (Department of the Interior) Navy (Department of the Navy)	$424,354	0.2%	Rank history: #57 in FY2022, #24 in FY2023, #57 in FY2024 and #61 in FY2025; down 16 since FY2020.
54	Federal Contracts LLC Top agencies DOE (Department of Energy)	$423,436	0.2%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
55	Beta Engineering, Inc. Top agencies DLA (Defense Logistics Agency)	$422,038	0.2%	Rank history: #42 in FY2022, #29 in FY2023, #14 in FY2024 and #38 in FY2025; down 23 since FY2020.
56	Form Fit & Function LLC Top agencies DLA (Defense Logistics Agency)	$416,222	0.2%	Rank history: not on the FY2022–FY2025 lists; up 107 since FY2020.
57	Brown Helicopter, Inc. Top agencies DLA (Defense Logistics Agency)	$391,956	0.2%	Rank history: #73 in FY2022, #67 in FY2023, #84 in FY2024 and #57 in FY2025; unchanged since FY2020.
58	Global Logistics Strategies Inc. Top agencies DLA (Defense Logistics Agency)	$387,431	0.1%	Rank history: not on the FY2022 list, #83 in FY2023, #43 in FY2024 and not on the FY2025 list; up 24 since FY2020.
59	Lake Shore Systems, Inc. 2 awardees Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$386,196	0.1%	Rank history: #51 in FY2022 and not on the FY2023–FY2025 lists; down 10 since FY2020.
60	Giesting & Associates, Inc. Top agencies DLA (Defense Logistics Agency)	$382,168	0.1%	Rank history: not on the FY2022–FY2024 lists and #62 in FY2025; new, not ranked in FY2020.
61	Ferox Logistics LLC Top agencies DLA (Defense Logistics Agency)	$374,066	0.1%	Rank history: not on the FY2022–FY2025 lists; up 97 since FY2020.
62	Tessa Two, LLC Top agencies USAF (Department of the Air Force)	$364,453	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
63	Wartsila Defense Inc. Through Defense Maritime Solutions, Inc. Top agencies Navy (Department of the Navy)	$355,536	0.1%	Rank history: #6 in FY2022 and not on the FY2023–FY2025 lists; new, not ranked in FY2020.
64	Polytech Defense Spares LLC Top agencies DLA (Defense Logistics Agency)	$348,680	0.1%	Rank history: #35 in FY2022, #43 in FY2023, #81 in FY2024 and #59 in FY2025; down 48 since FY2020.
65	Greenwich AeroGroup Inc. Through Aero Precision Industries LLC Top agencies DLA (Defense Logistics Agency)	$340,617	0.1%	Rank history: #77 in FY2022 and not on the FY2023–FY2025 lists; up 23 since FY2020.
66	Advanced CNC Manufacturing, Inc. Top agencies DLA (Defense Logistics Agency)	$335,732	0.1%	Rank history: #45 in FY2022 and not on the FY2023–FY2025 lists; up 11 since FY2020.
67	Zemarc Corporation Top agencies DLA (Defense Logistics Agency)	$332,926	0.1%	Rank history: not on the FY2022–FY2025 lists; up 50 since FY2020.
68	Rural Route 2, LLC Top agencies DLA (Defense Logistics Agency)	$331,085	0.1%	Rank history: #78 in FY2022, #37 in FY2023, not on the FY2024 list and #87 in FY2025; up 6 since FY2020.
69	Mack Boring & Parts Co Top agencies DLA (Defense Logistics Agency)	$330,737	0.1%	Rank history: not on the FY2022–FY2025 lists; up 368 since FY2020.
70	New Eagle LLC Top agencies Navy (Department of the Navy)	$318,713	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
71	Triad Technologies LLC Top agencies DLA (Defense Logistics Agency)	$314,744	0.1%	Rank history: not on the FY2022–FY2023 lists, #96 in FY2024 and #44 in FY2025; up 145 since FY2020.
72	Science Applications International Corporation Through Asrc Federal Facilities Logistics, LLC Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$310,153	0.1%	Rank history: #95 in FY2022 and not on the FY2023–FY2025 lists; up 96 since FY2020.
73	Applied Industrial Technologies, Inc. 2 awardees Top agencies DLA (Defense Logistics Agency)	$297,983	0.1%	Rank history: #70 in FY2022 and not on the FY2023–FY2025 lists; up 122 since FY2020.
74	Aerospace Industries LLC Top agencies DLA (Defense Logistics Agency)	$297,227	0.1%	Rank history: not on the FY2022–FY2025 lists; up 364 since FY2020.
75	M & R Supply Systems, LLC Top agencies DLA (Defense Logistics Agency)	$292,785	0.1%	Rank history: not on the FY2022–FY2025 lists; down 13 since FY2020.
76	Advanced Composite Products and Technology, Inc. Top agencies Navy (Department of the Navy)	$286,594	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
77	Young Engineering & Manufacturing, Inc. Top agencies Navy (Department of the Navy)	$283,874	0.1%	Rank history: not on the FY2022–FY2025 lists; new, not ranked in FY2020.
78	Farin Industries Inc. Top agencies DLA (Defense Logistics Agency)	$278,484	0.1%	Rank history: #41 in FY2022, not on the FY2023 list, #65 in FY2024 and not on the FY2025 list; down 18 since FY2020.
79	Argo Turboserve Corporation 2 awardees Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$270,589	0.1%	Rank history: #34 in FY2022, #61 in FY2023, #34 in FY2024 and not on the FY2025 list; down 65 since FY2020.
80	GMS International Corporation Top agencies DLA (Defense Logistics Agency)	$270,213	0.1%	Rank history: not on the FY2022–FY2025 lists; up 367 since FY2020.
81	Curtiss-Wright Corporation 5 awardees, including Curtiss-Wright Controls, Inc., Curtiss-Wright Electro-Mechanical Corp and Indal Technologies Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$268,341	0.1%	Rank history: #4 in FY2022, #2 in FY2023, not on the FY2024 list and #60 in FY2025; up 53 since FY2020.
82	Norcatec LLC 2 awardees Top agencies DLA (Defense Logistics Agency)	$268,266	0.1%	Rank history: #94 in FY2022, #45 in FY2023, #39 in FY2024 and #40 in FY2025; up 224 since FY2020.
83	MCI Solutions Inc. Top agencies DLA (Defense Logistics Agency) Navy (Department of the Navy)	$268,049	0.1%	Rank history: not on the FY2022–FY2025 lists; up 287 since FY2020.
84	Dutch Valley Supply Co. Top agencies DLA (Defense Logistics Agency)	$265,464	0.1%	Rank history: #97 in FY2022, #70 in FY2023, #56 in FY2024 and #72 in FY2025; up 23 since FY2020.
85	Heroux-Devtek Inc. Through Beaver Aerospace & Defense, Inc. Top agencies DLA (Defense Logistics Agency)	$265,165	0.1%	Rank history: not on the FY2022–FY2025 lists; up 37 since FY2020.
86	Equipment Parts Sales Top agencies DLA (Defense Logistics Agency)	$261,519	0.1%	Rank history: not on the FY2022–FY2025 lists; up 63 since FY2020.
87	D.l. Martin Co. Top agencies Navy (Department of the Navy) DLA (Defense Logistics Agency)	$260,273	0.1%	Rank history: not on the FY2022 list, #78 in FY2023 and not on the FY2024–FY2025 lists; up 204 since FY2020.
88	Brighton Cromwell LLC Top agencies DLA (Defense Logistics Agency) Army (Department of the Army)	$259,480	0.1%	Rank history: not on the FY2022–FY2025 lists; down 35 since FY2020.
89	Allied Defense Industries Inc. 3 awardees, including Allied Marine Services LLC and Aero International, LLC Top agencies DLA (Defense Logistics Agency)	$258,131	0.1%	Rank history: not on the FY2022 list, #58 in FY2023, #31 in FY2024 and #93 in FY2025; up 64 since FY2020.
90	Keystone Fire Protection Co Top agencies DLA (Defense Logistics Agency)	$255,004	0.1%	Rank history: not on the FY2022–FY2025 lists; up 154 since FY2020.
91	Greene Machine & Manufacturing Inc. Top agencies Navy (Department of the Navy)	$249,905	0.1%	Rank history: not on the FY2022–FY2025 lists; up 212 since FY2020.
92	Aviarms Support Corp Top agencies DLA (Defense Logistics Agency)	$245,557	0.1%	Rank history: not on the FY2022–FY2023 lists, #89 in FY2024 and #63 in FY2025; unchanged since FY2020.
93	Trivent Engineering, Incorporated Top agencies DLA (Defense Logistics Agency)	$243,956	0.1%	Rank history: #88 in FY2022, #72 in FY2023, not on the FY2024 list and #92 in FY2025; up 211 since FY2020.
94	Iveco SUD-West Nutzfahrzeuge GMBH Through CNH Industrial America LLC Top agencies DLA (Defense Logistics Agency)	$243,316	0.1%	Rank history: #99 in FY2022 and not on the FY2023–FY2025 lists; up 105 since FY2020.
95	FDH Defense Aftermarket, LLC Top agencies DLA (Defense Logistics Agency)	$240,995	0.1%	Rank history: not on the FY2022–FY2023 lists, #86 in FY2024 and not on the FY2025 list; down 49 since FY2020.
96	A-1 Anherma, LLC Top agencies DLA (Defense Logistics Agency)	$240,713	0.1%	Rank history: not on the FY2022–FY2025 lists; up 83 since FY2020.
97	Jag Components, LLC Top agencies DLA (Defense Logistics Agency)	$239,331	0.1%	Rank history: not on the FY2022–FY2025 lists; up 266 since FY2020.
98	Rolls-Royce Military Aero Engines Ltd Through Rolls-Royce Marine North America Inc. Top agencies Navy (Department of the Navy)	$236,286	0.1%	Rank history: not on the FY2022–FY2025 lists; down 67 since FY2020.
99	Tillman Tool Company Inc. Top agencies DLA (Defense Logistics Agency)	$224,858	0.1%	Rank history: #72 in FY2022, #100 in FY2023 and not on the FY2024–FY2025 lists; up 28 since FY2020.
100	WFM Manufacturing & Supply Inc. Top agencies DLA (Defense Logistics Agency)	$224,052	0.1%	Rank history: not on the FY2022–FY2025 lists; up 54 since FY2020.

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100 of 867 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 $260 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 333613 contractors in FY2021?

1. Allison Transmission Inc. ($123M), 2. Kampi Components Co Inc. ($12.8M), 3. General Electric Company ($6.72M), 4. Johnson Controls Security Solutions LLC ($4.24M), 5. Bollinger Shipyards Inc ($3.39M), 6. Hackforth Holding GMBH & Co. KG ($3.13M), 7. Management Solutions, L.C. ($2.9M), 8. U.s.a. Spares Inc. ($2.87M), 9. Kongsberg Gruppen ASA ($2.5M), 10. Woodward Governor Company ($2.37M).

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