Company lists · Data refreshed September 2026

Top 25 Agricultural gearbox manufacturers based in the United States

Name: Agricultural gearbox manufacturers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 120 companies tracked

RevenueBase identified 120 agricultural gearbox manufacturers headquartered in the United States as of September 2026 and tracks 5,811 professional contacts across them, including 2,000 with verified work emails. Charlotte is the largest hub.

This list covers agricultural gearbox manufacturers headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 30, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 30, 2026 86% judged on-target in blind review

120Companies

5,811Contacts tracked

2,000Verified emails

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The 25 largest agricultural gearbox manufacturers based in the United States

Ranked by team size

Top 25 of 120 agricultural gearbox manufacturers based in the United States, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to agricultural gearbox manufacturers: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	DAYCO	Partial evidence	Birmingham, MI, United StatesHQ checked Sep 30, 2026	1,001-5,000	1,488 contacts →
	Partial evidence “Dayco is a global leader in the research, design, manufacture and distribution of essential engine drive systems and aftermarket services for automotive, truck, construction…” Source: RevenueBase Database · checked Sep 30, 2026
2	Dodge Industrial	Partial evidence	Simpsonville, SC, United StatesHQ checked Sep 30, 2026	1,001-5,000	660 contacts →
	Partial evidence “Dodge Industrial, an RBC Bearings company, designs, manufactures, and supplies customized mechanical power transmission products for a wide range of industries and markets…” Source: RevenueBase Database · checked Sep 30, 2026
3	Team Industries	Indirect evidence	Bagley, NC, United StatesHQ checked Sep 30, 2026	1,001-5,000	487 contacts →
	Indirect evidence “TEAM Industries is a market leader in drive train technology that offers a complete range of services that includes everything from collaboration on product designs to…” Source: RevenueBase Database · checked Sep 30, 2026
4	Twin Disc	Indirect evidence	Milwaukee, WI, United StatesHQ checked Sep 30, 2026	501-1,000	413 contacts →
	Indirect evidence “For over 100 years Twin Disc has been developing, engineering, manufacturing and distributing power transmission products that put horsepower to work.” Source: RevenueBase Database · checked Sep 30, 2026
5	Fenner Drives	Indirect evidence	Lititz, PA, United StatesHQ checked Sep 30, 2026	201-500	380 contacts →
	Indirect evidence “Fenner Drives has developed a unique portfolio of products for power transmission, motion transfer and conveying applications.” Source: RevenueBase Database · checked Sep 30, 2026
6	Philadelphia Gear, Power Systems By Timken	Indirect evidence	King Of Prussia, PA, United StatesHQ checked Sep 30, 2026	201-500	186 contacts →
	Indirect evidence “Philadelphia Gear® brand enclosed drives are the product of over 130 years of innovative design engineering and manufacturing excellence.” Source: RevenueBase Database · checked Sep 30, 2026
7	Lufkin Gears	Indirect evidence	Lufkin, TX, United StatesHQ checked Sep 30, 2026	501-1,000	164 contacts →
	Indirect evidence “Our Lufkin Gears brand bring a deep history of industry-leading technology to demanding high-speed mechanical-drive, turbo machinery, and marine-propulsion applications.” Source: RevenueBase Database · checked Sep 30, 2026
8	Weasler Engineering	Indirect evidence	West Bend, WI, United StatesHQ checked Sep 30, 2026	201-500	149 contacts →
	Indirect evidence “Proudly marking our 75th anniversary this year, Weasler Engineering is celebrating a legacy built on expertise, innovation, reliability and an unwavering commitment to customer…” Source: RevenueBase Database · checked Sep 30, 2026
9	PT Tech LLC	Partial evidence	Wadsworth, OH, United StatesHQ checked Sep 30, 2026	51-200	148 contacts →
	Partial evidence “Since 1978, PT Tech has manufactured drivetrain solutions for OEM's in the Mining, Marine, Recycling, Roadworking, Wind Energy, Tunnel Boring, Steel and other markets.” Source: RevenueBase Database · checked Sep 30, 2026
10	Horsburgh & Scott	Partial evidence	Cleveland, OH, United StatesHQ checked Sep 30, 2026	51-200	146 contacts →
	Partial evidence “Horsburgh & Scott, founded in 1886, is one of the world's leading providers of custom industrial gears and gearboxes.” Source: RevenueBase Database · checked Sep 30, 2026
11	Tuff Torq Corporation	Indirect evidence	Morristown, TN, United StatesHQ checked Sep 30, 2026	201-500	128 contacts →
	Indirect evidence “Tuff Torq Corporation was incorporated on July 1, 1989, and is a subsidiary of the Kanzaki Kokyukoki Manufacturing Company Limited and the Yanmar Co.” Source: RevenueBase Database · checked Sep 30, 2026
12	Boston Gear	Indirect evidence	Charlotte, NC, United StatesHQ checked Sep 30, 2026	51-200	115 contacts →
	Indirect evidence “Boston Gear is a leading global supplier of quality power transmission products to most major industrial markets including, but not limited to food processing, packaging…” Source: RevenueBase Database · checked Sep 30, 2026
13	Brad Foote Gearing	Indirect evidence	Cicero, IL, United StatesHQ checked Sep 30, 2026	201-500	65 contacts →
	Indirect evidence “As an ISO 9001 registered company with an international reputation for superior quality, Brad Foote Gear Works, Inc.” Source: RevenueBase Database · checked Sep 30, 2026
14	ABS Atlantic Bearing Services	Indirect evidence	Miami, FL, United StatesHQ checked Sep 30, 2026	201-500	63 contacts →
	Indirect evidence “Atlantic Bearing Services (ABS) is an international engineering company providing design, manufacturing, repair, and supply solutions for heavy industry.” Source: RevenueBase Database · checked Sep 30, 2026
15	Drake Enterprises, INC	Indirect evidence	Clinton Township, MI, United StatesHQ checked Sep 30, 2026	51-200	63 contacts →
	Indirect evidence “Drake Enterprises, Inc, located in Clinton Township, Michigan, has been in business since 1952 and continues to strive in the competitive manufacturing environment.” Source: RevenueBase Database · checked Sep 30, 2026
16	Overton Chicago Gear	Partial evidence	Addison, IL, United StatesHQ checked Sep 30, 2026	201-500	60 contacts →
	Partial evidence “With history dating to OCG manufactures large, high-precision gears that are designed to meet a wide range of requirements for the most challenging applications in the oil and…” Source: RevenueBase Database · checked Sep 30, 2026
17	Omni Powertrain Technologies	Partial evidence	Houston, TX, United StatesHQ checked Sep 30, 2026	501-1,000	59 contacts →
	Partial evidence “We design, develop and manufacture world class power transmission systems for global OEMs, providing our customers with innovative performance, quality and value, that meets or…” Source: RevenueBase Database · checked Sep 30, 2026
18	Chardam Gear Company	Partial evidence	Sterling Heights, MI, United StatesHQ checked Sep 30, 2026	51-200	59 contacts →
	Partial evidence “If you have requirements for high performance gears (spur, helical or spiral bevel), splined shaft, housings, details or complete gearboxes, Chardam Gear Company can fulfill your…” Source: RevenueBase Database · checked Sep 30, 2026
19	Riley Gear Corporation	Indirect evidence	Saint Augustine, United StatesHQ checked Sep 30, 2026	51-200	57 contacts →
	Indirect evidence “Riley Gear Corporation develops and produces precision gears, custom gear boxes, and other power transmission components.” Source: RevenueBase Database · checked Sep 30, 2026
20	Master Power Transmission, INC	Partial evidence	Greenville, SC, United StatesHQ checked Sep 30, 2026	51-200	55 contacts →
	Partial evidence “Manufacturer of high-quality, reliable mechanical power transmission products including Master APG® REEVES® InnovaDrive®, Master XL, Master CombGear®, REEVES® Motodrive, and…” Source: RevenueBase Database · checked Sep 30, 2026
21	GL Power, INC	Indirect evidence	Madison, OH, United StatesHQ checked Sep 30, 2026	51-200	38 contacts →
	Indirect evidence “GL POWER INC.” Source: RevenueBase Database · checked Sep 30, 2026
22	Cotta, LLC	Partial evidence	Janesville, WI, United StatesHQ checked Sep 30, 2026	51-200	37 contacts →
	Partial evidence “Cotta, LLC is a trusted, leading manufacturer of top-quality, precision-engineered transmissions for a wide range of specialized mobile and stationary applications.” Source: RevenueBase Database · checked Sep 30, 2026
23	Power Engineering And Manufacturing, LTD	Indirect evidence	Waterloo, IA, United StatesHQ checked Sep 30, 2026	51-200	36 contacts →
	Indirect evidence “When PEM began in 1975, we recognized that there was good demand for custom-designed gear boxes, especially for applications where high shock loads were encountered and space…” Source: RevenueBase Database · checked Sep 30, 2026
24	Milwaukee Gear	Strong evidence	Milwaukee, WI, United StatesHQ checked Sep 30, 2026	51-200	34 contacts →
	Strong evidence “Milwaukee Gear is a world-class manufacturer of custom gearboxes and components, selling to OEM market leaders requiring highly engineered harden and ground gears to exacting…” Source: RevenueBase Database · checked Sep 30, 2026
25	Cleveland Gear CO INC	Indirect evidence	Cleveland, OH, United StatesHQ checked Sep 30, 2026	51-200	30 contacts →
	Indirect evidence “MOVING THE WORLD FOR 100 YEARS We are proud of our past, but looking forward to our future.” Source: RevenueBase Database · checked Sep 30, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: agricultural gearbox manufacturers. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names agricultural gearbox manufacturers.
Partial evidence: Its own public description names part of agricultural gearbox manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name agricultural gearbox manufacturers. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 120 agricultural gearbox manufacturers based in the United States

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Agricultural gearbox manufacturers based in the United States at a glance

As of Sep 30, 2026

34.4%Verified-email coverage

48.4Average contacts per company

11-50Median size (employees)

3.3%Largest-city concentration · Charlotte

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 120 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among agricultural gearbox manufacturers, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “agricultural gearbox manufacturers”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names agricultural gearbox manufacturers), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among agricultural gearbox manufacturers, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 2,000 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 30, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names agricultural gearbox manufacturers, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many agricultural gearbox manufacturers are there based in the United States?

RevenueBase identified 120 agricultural gearbox manufacturers headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

DAYCO, headquartered in Birmingham, tops this list with the largest team on record.

Which city has the most agricultural gearbox manufacturers?

Charlotte leads with 4 headquartered companies, followed by Houston (3) and Milwaukee (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 2,000 verified decision-maker contacts tracked across these 120 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 30, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.