Company lists · Data refreshed September 2026

Top 25 Transmission manufacturers based in the United States

Name: Transmission 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 19, 2026 546 companies tracked

RevenueBase identified 546 transmission manufacturers headquartered in the United States as of September 2026 and tracks 23,734 professional contacts across them, including 6,241 with verified work emails. Houston is the largest hub.

This list covers transmission 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 19, 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 19, 2026 86% judged on-target in blind review

546Companies

23,734Contacts tracked

6,241Verified emails

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The 25 largest transmission manufacturers based in the United States

Ranked by team size

Top 25 of 546 transmission manufacturers based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to transmission 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	AAM	Indirect evidence	Detroit, MI, United StatesHQ checked Sep 19, 2026	10001+	7,954 contacts →
	Indirect evidence “On February 3, 2026, Dauch Corporation (formerly American Axle & Manufacturing) acquired Dowlais Group plc and its subsidiaries – GKN Automotive and GKN Powder Metallurgy.” Source: RevenueBase Database · checked Sep 19, 2026
2	Allison Transmission	Strong evidence	Indianapolis, IN, United StatesHQ checked Sep 19, 2026	1,001-5,000	2,695 contacts →
	Strong evidence “Allison Transmission is a leading designer and manufacturer of vehicle propulsion solutions for commercial and defense vehicles, the largest global manufacturer of medium- and…” Source: RevenueBase Database · checked Sep 19, 2026
3	DAYCO	Partial evidence	Birmingham, MI, United StatesHQ checked Sep 19, 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 19, 2026
4	Jasper Engines & Transmissions	Partial evidence	Jasper, IN, United StatesHQ checked Sep 19, 2026	1,001-5,000	793 contacts →
	Partial evidence “JASPER® Engines & Transmissions was founded in 1942 and today is the nation's largest remanufacturer of a diverse line of drive train components.” Source: RevenueBase Database · checked Sep 19, 2026
5	Demand Detroit	Partial evidence	Detroit, MI, United StatesHQ checked Sep 19, 2026	1,001-5,000	784 contacts →
	Partial evidence “Detroit® is a single-source trucking business solution that offers mid-range and heavy-duty diesel engines, ePowertrains, transmissions, axles, safety systems, and connected…” Source: RevenueBase Database · checked Sep 19, 2026
6	Tremec	Indirect evidence	Novi, MI, United StatesHQ checked Sep 19, 2026	1,001-5,000	740 contacts →
	Indirect evidence “Torque transfer solutions from TREMEC are found in products ranging from supercars and high-performance sports cars to line haul and vocational vehicles worldwide.” Source: RevenueBase Database · checked Sep 19, 2026
7	Neapco	Partial evidence	Farmington Hills, MI, United StatesHQ checked Sep 19, 2026	1,001-5,000	516 contacts →
	Partial evidence “Neapco is the leading supplier of innovative driveline solutions to original equipment manufacturers and the global automotive industry.” Source: RevenueBase Database · checked Sep 19, 2026
8	Team Industries	Indirect evidence	Bagley, NC, United StatesHQ checked Sep 19, 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 19, 2026
9	Aisin North Carolina Corporation	Indirect evidence	Durham, NC, United StatesHQ checked Sep 19, 2026	1,001-5,000	452 contacts →
	Indirect evidence “On April 1, 2021, AW North Carolina became AISIN North Carolina, part of AISIN Group in the Americas, which includes some employees, 43 manufacturing, sales and R&D Centers.” Source: RevenueBase Database · checked Sep 19, 2026
10	Twin Disc	Partial evidence	Milwaukee, WI, United StatesHQ checked Sep 19, 2026	501-1,000	413 contacts →
	Partial 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 19, 2026
11	Weller Truck Parts	Indirect evidence	Grand Rapids, MI, United StatesHQ checked Sep 19, 2026	1,001-5,000	310 contacts →
	Indirect evidence “For quality heavy duty truck driveline components, put our team on your team!” Source: RevenueBase Database · checked Sep 19, 2026
12	Dynamic Manufacturing, INC	Indirect evidence	Hillside, IL, United StatesHQ checked Sep 19, 2026	1,001-5,000	264 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
13	U.S. Tsubaki Power Transmission, LLC	Indirect evidence	Wheeling, IL, United StatesHQ checked Sep 19, 2026	501-1,000	250 contacts →
	Indirect evidence “U.S.” Source: RevenueBase Database · checked Sep 19, 2026
14	ETE Reman	Partial evidence	Milwaukee, WI, United StatesHQ checked Sep 19, 2026	501-1,000	245 contacts →
	Partial evidence “About ETE REMAN ETE REMAN is the largest independent aftermarket automatic transmission remanufacturer in the United States.” Source: RevenueBase Database · checked Sep 19, 2026
15	Raybestos Powertrain, LLC	Partial evidence	Crawfordsville, IN, United StatesHQ checked Sep 19, 2026	201-500	225 contacts →
	Partial evidence “Raybestos® Powertrain, headquartered in Crawfordsville, Indiana, is one of the largest distributors of transmission-related friction products in the world, supplying the next…” Source: RevenueBase Database · checked Sep 19, 2026
16	TAC Manufacturing, INC	Partial evidence	Jackson, MI, United StatesHQ checked Sep 19, 2026	501-1,000	187 contacts →
	Partial evidence “TAC Manufacturing, situated in the community of Jackson, Michigan, is a manufacturer of automotive shifters, steering wheels, and related automotive components.” Source: RevenueBase Database · checked Sep 19, 2026
17	Transaxle LLC	Indirect evidence	Cinnaminson, NJ, United StatesHQ checked Sep 19, 2026	201-500	171 contacts →
	Indirect evidence “TransAxle, established in 1979 in Cinnaminson, NJ, has evolved into a prominent remanufacturing and distribution business with 14 locations.” Source: RevenueBase Database · checked Sep 19, 2026
18	Whatever IT Takes Transmission	Partial evidence	Shepherdsville, KY, United StatesHQ checked Sep 19, 2026	201-500	155 contacts →
	Partial evidence “Whatever It Takes is an industry veteran in the transmission parts supply business.” Source: RevenueBase Database · checked Sep 19, 2026
19	Weasler Engineering	Indirect evidence	West Bend, WI, United StatesHQ checked Sep 19, 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 19, 2026
20	Aisin Drivetrain INC	Indirect evidence	Crothersville, IN, United StatesHQ checked Sep 19, 2026	201-500	143 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
21	Tuff Torq Corporation	Indirect evidence	Morristown, TN, United StatesHQ checked Sep 19, 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 19, 2026
22	Palmer Johnson	Partial evidence	Sun Prairie, WI, United StatesHQ checked Sep 19, 2026	51-200	126 contacts →
	Partial evidence “Palmer Johnson Power Systems specializes in servicing and supplying components for heavy-duty, off-highway transmissions and axles.” Source: RevenueBase Database · checked Sep 19, 2026
23	Sonnax	Strong evidence	Bellows Falls, VT, United StatesHQ checked Sep 19, 2026	201-500	121 contacts →
	Strong evidence “Sonnax Transmission Company is an industry leader in the cutting-edge design, manufacture and distribution of the highest quality products to the automotive aftermarket…” Source: RevenueBase Database · checked Sep 19, 2026
24	Valley Truck Parts	Indirect evidence	Wyoming, MI, United StatesHQ checked Sep 19, 2026	201-500	97 contacts →
	Indirect evidence “Built to Work.” Source: RevenueBase Database · checked Sep 19, 2026
25	Moveras, LLC	Strong evidence	Salem, NH, United StatesHQ checked Sep 19, 2026	11-50	92 contacts →
	Strong evidence “Moveras supplies high-quality, factory re-manufactured transmissions.” Source: RevenueBase Database · checked Sep 19, 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: transmission 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 transmission manufacturers.
Partial evidence: Its own public description names part of transmission manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name transmission 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 546 transmission manufacturers based in the United States

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Transmission manufacturers based in the United States at a glance

As of Sep 19, 2026

26.3%Verified-email coverage

43.5Average contacts per company

1-10Median size (employees)

1.6%Largest-city concentration · Houston

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

288

11-50

157

51-200

201-500

501-1,000

1,001-5,000

10001+

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 546 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 transmission 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 “transmission 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 transmission 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 transmission 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, 6,241 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 19, 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 transmission 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 transmission manufacturers are there based in the United States?

RevenueBase identified 546 transmission 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?

AAM, headquartered in Detroit, tops this list with the largest team on record.

Which city has the most transmission manufacturers?

Houston leads with 9 headquartered companies, followed by Chicago (5) and Memphis (5).

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 6,241 verified decision-maker contacts tracked across these 546 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 19, 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.