Company lists · Data refreshed September 2026

Top 25 Automotive engineering design services based in the United States

Name: Automotive engineering design services 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 375 companies tracked

RevenueBase identified 375 automotive engineering design services headquartered in the United States as of September 2026 and tracks 6,549 professional contacts across them, including 1,873 with verified work emails. Troy is the largest hub.

This list covers automotive engineering design services 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

375Companies

6,549Contacts tracked

1,873Verified emails

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The 25 largest automotive engineering design services based in the United States

Ranked by team size

Top 25 of 375 automotive engineering design services 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 automotive engineering design services: 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	Caresoft Global	Strong evidence	Livonia, MI, United StatesHQ checked Sep 30, 2026	1,001-5,000	1,860 contacts →
	Strong evidence “We are a global engineering solutions company working closely with major Automotive, On-Highway, Agriculture & Construction Equipment Manufacturers and Tier-I Suppliers to solve…” Source: RevenueBase Database · checked Sep 30, 2026
2	RFA Engineering	Indirect evidence	Eden Prairie, MN, United StatesHQ checked Sep 30, 2026	201-500	468 contacts →
	Indirect evidence “RFA serves 100's of clients ranging in size from Fortune 500 to entrepreneurial start-ups.” Source: RevenueBase Database · checked Sep 30, 2026
3	RCO Engineering	Indirect evidence	Roseville, MI, United StatesHQ checked Sep 30, 2026	501-1,000	438 contacts →
	Indirect evidence “Specializing in low-volume manufacturing that Tier 1 suppliers avoid, we offer complete program management under one roof, including emergency tooling and parts, large program…” Source: RevenueBase Database · checked Sep 30, 2026
4	Triz Engineering Solutions	Partial evidence	Highland Park, IL, United StatesHQ checked Sep 30, 2026	201-500	203 contacts →
	Partial evidence “Triz Engineering Solutions provides engineering to commercial vehicle OEMs, supporting the development, integration, and launch of full or partial vehicle systems and platforms.” Source: RevenueBase Database · checked Sep 30, 2026
5	Ryzen Solutions	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 30, 2026	201-500	169 contacts →
	Indirect evidence “Since Ryzen Solutions has become a trusted provider to Silicon Valley’s growing product development community.” Source: RevenueBase Database · checked Sep 30, 2026
6	Waltonen Engineering	Strong evidence	Warren, MI, United StatesHQ checked Sep 30, 2026	51-200	154 contacts →
	Strong evidence “Established in 1957, Waltonen is a full-service design and engineering company with locations in Warren and Troy, Michigan.” Source: RevenueBase Database · checked Sep 30, 2026
7	Mclaren Engineering	Partial evidence	Livonia, MI, United StatesHQ checked Sep 30, 2026	201-500	148 contacts →
	Partial evidence “McLaren Engineering is Linamar’s leading-edge technology and product development center for our mobility segment.” Source: RevenueBase Database · checked Sep 30, 2026
8	Prefix Corporation	Strong evidence	Rochester Hills, MI, United StatesHQ checked Sep 30, 2026	201-500	133 contacts →
	Strong evidence “Michigan-based Prefix Corporation is a recognized leader in the creation of prototype designs, mock-ups, and full scale concept vehicles for the automotive and aviation industries.” Source: RevenueBase Database · checked Sep 30, 2026
9	Distek Integration, INC	Indirect evidence	Cedar Falls, IA, United StatesHQ checked Sep 30, 2026	51-200	105 contacts →
	Indirect evidence “DISTek establishes a team of specialized engineers tailored to solve your projects’ unique challenges.” Source: RevenueBase Database · checked Sep 30, 2026
10	Proper Group International	Indirect evidence	Warren, MI, United StatesHQ checked Sep 30, 2026	501-1,000	104 contacts →
	Indirect evidence “For a complete listing of our Open positions please visit Proper Group International offers everything from rapid prototype development to the world’s most sophisticated injection…” Source: RevenueBase Database · checked Sep 30, 2026
11	BGM Engineering INC	Indirect evidence	Shelby Twp., MI, United StatesHQ checked Sep 30, 2026	51-200	78 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
12	Dbsi Services	Indirect evidence	Bridgewater, NJ, United StatesHQ checked Sep 30, 2026	51-200	74 contacts →
	Indirect evidence “Databased Solutions has made the Inc.” Source: RevenueBase Database · checked Sep 30, 2026
13	Martin Technologies	Partial evidence	New Hudson, MI, United StatesHQ checked Sep 30, 2026	501-1,000	73 contacts →
	Partial evidence “MARTIN Technologies is a proven leader in advanced engineering solutions for global transportation including Engineering, Testing, Manufacturing, and Motorsports.” Source: RevenueBase Database · checked Sep 30, 2026
14	Advanced Engineering Services	Strong evidence	San Jose, CA, United StatesHQ checked Sep 30, 2026	51-200	72 contacts →
	Strong evidence “Advanced Engineering Services (AES) provides premier product design engineering and automation tool design/build services globally.” Source: RevenueBase Database · checked Sep 30, 2026
15	Tucana Engineering	Partial evidence	The Woodlands, TX, United StatesHQ checked Sep 30, 2026	201-500	62 contacts →
	Partial evidence “Tucana Engineering: Your Innovation and High-Tech Engineering Partner Tucana Engineering is a global leader providing top-tier engineering services across aerospace, airport…” Source: RevenueBase Database · checked Sep 30, 2026
16	Michigan Production Machining INC	Indirect evidence	Macomb, MI, United StatesHQ checked Sep 30, 2026	51-200	58 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
17	Design Research Engineering	Partial evidence	Novi, United StatesHQ checked Sep 30, 2026	11-50	56 contacts →
	Partial evidence “Engineering Consulting Services” Source: RevenueBase Database · checked Sep 30, 2026
18	Srushty Global Solutions	Strong evidence	Irving, TX, United StatesHQ checked Sep 30, 2026	51-200	55 contacts →
	Strong evidence “Who we are Srushty Global Solutions provides engineering solutions, right from the concept design to product launch, covering engineering design, product validation, prototyping…” Source: RevenueBase Database · checked Sep 30, 2026
19	SK International	Indirect evidence	Wixom, MI, United StatesHQ checked Sep 30, 2026	11-50	51 contacts →
	Indirect evidence “Established in 2005, SK International has become a powerhouse of continued innovation, creativity, automation and customization and has evolved into a company that has the…” Source: RevenueBase Database · checked Sep 30, 2026
20	Cambric Corporation	Partial evidence	Salt Lake City, UT, United StatesHQ checked Sep 30, 2026	201-500	44 contacts →
	Partial evidence “Choose Cambric® in order to reduce development costs and time lines by leveraging our global and scalable engineering resources.” Source: RevenueBase Database · checked Sep 30, 2026
21	Dorleco	Partial evidence	Farmington, MI, United StatesHQ checked Sep 30, 2026	11-50	40 contacts →
	Partial evidence “We partner with automotive, commercial, marine, recreational, construction and mining vehicle manufacturers to make their vehicles smarter with electronics hardware, software and…” Source: RevenueBase Database · checked Sep 30, 2026
22	ENG Design	Strong evidence	Sterling Heights, MI, United StatesHQ checked Sep 30, 2026	11-50	40 contacts →
	Strong evidence “EnG Design offers complete engineering and design solutions to the automotive, defense, and aerospace industries.” Source: RevenueBase Database · checked Sep 30, 2026
23	Toogann Technologies	Indirect evidence	Dublin, OH, United StatesHQ checked Sep 30, 2026	201-500	40 contacts →
	Indirect evidence “TOOGANN, we are an extremely successful US Corporation since 2015.” Source: RevenueBase Database · checked Sep 30, 2026
24	Hummingbird Teksystems, INC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 30, 2026	51-200	39 contacts →
	Indirect evidence “Overview: Hummingbird TekSystem, Inc.” Source: RevenueBase Database · checked Sep 30, 2026
25	Delaware Dynamics LLC	Strong evidence	Muncie, IN, United StatesHQ checked Sep 30, 2026	51-200	34 contacts →
	Strong evidence “Delaware Dynamics LLC is a World-Class provider of in-house designed and manufactured die cast tooling for automotive companies such as Ford Motor Company, Chrysler, General…” 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: automotive engineering design services. 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 automotive engineering design services.
Partial evidence: Its own public description names part of automotive engineering design services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name automotive engineering design services. 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 375 automotive engineering design services based in the United States

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Automotive engineering design services based in the United States at a glance

As of Sep 30, 2026

28.6%Verified-email coverage

17.5Average contacts per company

1-10Median size (employees)

2.4%Largest-city concentration · Troy

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

234

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 375 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 engineering design services, 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 engineering design services”. 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 engineering design services), 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 engineering design services, 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, 1,873 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 automotive engineering design services, 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 engineering design services are there based in the United States?

RevenueBase identified 375 automotive engineering design services 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?

Caresoft Global, headquartered in Livonia, tops this list with the largest team on record.

Which city has the most automotive engineering design services?

Troy leads with 9 headquartered companies, followed by Los Angeles (7) and San Diego (7).

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 1,873 verified decision-maker contacts tracked across these 375 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.