Company lists · Data refreshed September 2026

Top 25 Automotive electric motor integrators based in the United States

RevenueBase identified 165 automotive electric motor integrators headquartered in the United States as of September 2026 and tracks 4,754 professional contacts across them, including 2,032 with verified work emails. Houston is the largest hub.

This list covers automotive electric motor integrators 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 16, 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 16, 2026 86% judged on-target in blind review
165Companies
4,754Contacts tracked
2,032Verified emails
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The 25 largest automotive electric motor integrators based in the United States

Ranked by team size
Top 25 of 165 automotive electric motor integrators based in the United States, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to automotive electric motor integrators: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceNovi, MI, United StatesHQ checked Sep 16, 20261,001-5,0001,871 contacts →

Indirect evidence

“Stoneridge, Inc.”

Source: RevenueBase Database · checked Sep 16, 2026
2Partial evidenceMt. Kisco, NY, United StatesHQ checked Sep 16, 20261,001-5,000468 contacts →

Partial evidence

“Curtis Instruments, a Parker-Hannifin Company, has led the way with innovations in motor control, battery management and vehicle instrumentation since 1960.”

Source: RevenueBase Database · checked Sep 16, 2026
3Strong evidenceAlpharetta, GA, United StatesHQ checked Sep 16, 2026201-500192 contacts →

Strong evidence

“Turntide Technologies designs and manufactures best-in-class electric motors, power electronics, energy storage, and thermal equipment for anything that moves –on the road, off…”

Source: RevenueBase Database · checked Sep 16, 2026
4Strong evidenceStratham, NH, United StatesHQ checked Sep 16, 2026501-1,000161 contacts →

Strong evidence

“The ElectroCraft Powering Innovation custom manufacturing services cover the following products: AC motors, PMDC motors, brushless DC motors, stepper motors, servo motors…”

Source: RevenueBase Database · checked Sep 16, 2026
5Indirect evidenceLivonia, MI, United StatesHQ checked Sep 16, 2026201-500148 contacts →

Indirect evidence

“McLaren Engineering is Linamar’s leading-edge technology and product development center for our mobility segment.”

Source: RevenueBase Database · checked Sep 16, 2026
6Strong evidenceFairport, NY, United StatesHQ checked Sep 16, 202651-200136 contacts →

Strong evidence

“WorldWide Electric Corporation is a leading manufacturer and importer of electric motors, motor controls, gear reducers, and generators.”

Source: RevenueBase Database · checked Sep 16, 2026
7Strong evidenceSioux Center, United StatesHQ checked Sep 16, 2026201-50070 contacts →

Strong evidence

“Partnering with Groschopp means working with a small electric motor and gear motor manufacturer that strives for the American standard of quality.”

Source: RevenueBase Database · checked Sep 16, 2026
8Indirect evidenceBrooksville, FL, United StatesHQ checked Sep 16, 202651-20062 contacts →

Indirect evidence

“Vertically integrated sister companies.”

Source: RevenueBase Database · checked Sep 16, 2026
9Partial evidenceHouston, TX, United StatesHQ checked Sep 16, 202651-20059 contacts →

Partial evidence

“AmeriMex Motor & Controls, LLC.”

Source: RevenueBase Database · checked Sep 16, 2026
10Strong evidenceClinton, United StatesHQ checked Sep 16, 202651-20052 contacts →

Strong evidence

“MAG is a world class supplier of integrative mechanical and electro-mechanical assemblies for the automotive industry.”

Source: RevenueBase Database · checked Sep 16, 2026
11Strong evidenceRock Hill, SC, United StatesHQ checked Sep 16, 202611-5051 contacts →

Strong evidence

“There are thousands of companies that sell electric motors and drives.”

Source: RevenueBase Database · checked Sep 16, 2026
12Strong evidenceTulsa, OK, United StatesHQ checked Sep 16, 202651-20044 contacts →

Strong evidence

“E&I Sales is a custom UL Control Panel Shop, Systems Integrator and an Electric Motor Distributor.”

Source: RevenueBase Database · checked Sep 16, 2026
13Strong evidenceLouisville, CO, United StatesHQ checked Sep 16, 202651-20042 contacts →

Strong evidence

“H3X makes high power density electric motors for sustainable aviation, marine, industrial, and defense.”

Source: RevenueBase Database · checked Sep 16, 2026
14Indirect evidenceBloomfield Hills, MI, United StatesHQ checked Sep 16, 202611-5039 contacts →

Indirect evidence

“Humber Automated Systems LLC- A home for Experts in the Industrial Automation Industry.”

Source: RevenueBase Database · checked Sep 16, 2026
15Partial evidenceSouth San Francisco, CA, United StatesHQ checked Sep 16, 202651-20038 contacts →

Partial evidence

“A producer of high-end electrical systems for electric vehicles.”

Source: RevenueBase Database · checked Sep 16, 2026
16Strong evidenceFort Wayne, IN, United StatesHQ checked Sep 16, 202651-20037 contacts →

Strong evidence

“Alliance Winding Group is the worldwide leader in the design and supply of systems for the production of electric motor and generators.”

Source: RevenueBase Database · checked Sep 16, 2026
17Strong evidenceLa Verne, CA, United StatesHQ checked Sep 16, 2026201-50033 contacts →

Strong evidence

“We are a global leader in specialized electric motor solutions for small and large complex electric motor applications.”

Source: RevenueBase Database · checked Sep 16, 2026
18Strong evidenceLongmont, CO, United StatesHQ checked Sep 16, 202651-20029 contacts →

Strong evidence

“UQM develops and manufactures power-dense, high-efficiency electric motors, generators and controllers for the automotive, commercial truck, bus, marine and military…”

Source: RevenueBase Database · checked Sep 16, 2026
19Partial evidenceShelbyville, IN, United StatesHQ checked Sep 16, 202651-20026 contacts →

Partial evidence

“Nidec Sankyo America Corporation, located in Shelbyville, Indiana, is a subsidiary of Nidec Sankyo Corporation, which is part of one of the largest motor groups worldwide, Nidec…”

Source: RevenueBase Database · checked Sep 16, 2026
20Indirect evidenceWarrior, AL, United StatesHQ checked Sep 16, 202651-20025 contacts →

Indirect evidence

“The history of Louis Allis goes back more than 100 years where it all started in an old shoe factory at 710 Hanover Street in Milwaukee.”

Source: RevenueBase Database · checked Sep 16, 2026
21Strong evidencePensacola, FL, United StatesHQ checked Sep 16, 202611-5024 contacts →

Strong evidence

“Recognized as Northwest Florida’s most trusted electric motor service and repair shop, our highly skilled team guarantees quality workmanship you can count on.”

Source: RevenueBase Database · checked Sep 16, 2026
22Partial evidencePortland, OR, United StatesHQ checked Sep 16, 202651-20023 contacts →

Partial evidence

“Cascadia Motion is a wholly owned subsidiary of BorgWarner focusing on electric vehicles for niche & emerging volume applications.”

Source: RevenueBase Database · checked Sep 16, 2026
23Partial evidenceCamarillo, CA, United StatesHQ checked Sep 16, 202611-5022 contacts →

Partial evidence

“ThinGap is a world leader in high performance electromechanical conversion.”

Source: RevenueBase Database · checked Sep 16, 2026
24Strong evidenceFrankfort, IL, United StatesHQ checked Sep 16, 202651-20022 contacts →

Strong evidence

“Warfield Electric Co is the largest provider of New & Remanufactured AC & DC Electric Motors and Drive Units for all applications.”

Source: RevenueBase Database · checked Sep 16, 2026
25Partial evidenceHawthorne, CA, United StatesHQ checked Sep 16, 202611-5022 contacts →

Partial evidence

“AEM Performance Electronics is a subsidiary of Holley Performance Products, the largest performance aftermarket company in the world.”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 25 of 165 automotive electric motor integrators based in the United States

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Automotive electric motor integrators based in the United States at a glance

As of Sep 16, 2026
42.7%Verified-email coverage
28.8Average contacts per company
11-50Median size (employees)
3.6%Largest-city concentration · Houston
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
70
11-50
50
51-200
31
201-500
5
501-1,000
1
1,001-5,000
7
10001+
1

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 165 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 automotive electric motor integrators, 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 “automotive electric motor integrators”. 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 automotive electric motor integrators), 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 automotive electric motor integrators, 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, 2,032 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 16, 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 automotive electric motor integrators, 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 automotive electric motor integrators are there based in the United States?

RevenueBase identified 165 automotive electric motor integrators 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?

Stoneridge, headquartered in Novi, tops this list with the largest team on record.

Which city has the most automotive electric motor integrators?

Houston leads with 6 headquartered companies, followed by Farmington Hills (5) and Clinton (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 2,032 verified decision-maker contacts tracked across these 165 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 16, 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.