Company lists · Data refreshed September 2026

Top 25 Automotive design services based in the United States

Name: Automotive 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 21, 2026 310 companies tracked

RevenueBase identified 310 automotive design services headquartered in the United States as of September 2026 and tracks 1,814 professional contacts across them, including 429 with verified work emails. Los Angeles is the largest hub.

This list covers automotive 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 21, 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 21, 2026 86% judged on-target in blind review

310Companies

1,814Contacts tracked

429Verified emails

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The 25 largest automotive design services based in the United States

Ranked by team size

Top 25 of 310 automotive design services based in the United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to automotive 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	Prefix Corporation	Strong evidence	Rochester Hills, MI, United StatesHQ checked Sep 21, 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 21, 2026
2	Proper Group International	Indirect evidence	Warren, MI, United StatesHQ checked Sep 21, 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 21, 2026
3	KEK Design	Partial evidence	Rochester, NY, United StatesHQ checked Sep 21, 2026	11-50	55 contacts →
	Partial evidence “KEK Design is a full-service industrial design and product development consultancy located in Rochester, New York.” Source: RevenueBase Database · checked Sep 21, 2026
4	ENG Design	Strong evidence	Sterling Heights, MI, United StatesHQ checked Sep 21, 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 21, 2026
5	Toogann Technologies	Indirect evidence	Dublin, OH, United StatesHQ checked Sep 21, 2026	201-500	40 contacts →
	Indirect evidence “TOOGANN, we are an extremely successful US Corporation since 2015.” Source: RevenueBase Database · checked Sep 21, 2026
6	Kickr Design	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	11-50	31 contacts →
	Partial evidence “Kickr Design is a fast growing product design and engineering consultancy headquartered in Atlanta, Georgia.” Source: RevenueBase Database · checked Sep 21, 2026
7	Design Catapult INC	Partial evidence	Fountain Valley, CA, United StatesHQ checked Sep 21, 2026	11-50	30 contacts →
	Partial evidence “DESIGN CATAPULT offers a unique approach to obtaining quality design services.” Source: RevenueBase Database · checked Sep 21, 2026
8	Auto Research Center LLC	Strong evidence	Indianapolis, IN, United StatesHQ checked Sep 21, 2026	11-50	22 contacts →
	Strong evidence “Auto Research Center LLC is a specialized design, research, and testing organization, supporting customers in the fields of automotive, transportation, racing, aviation, consumer…” Source: RevenueBase Database · checked Sep 21, 2026
9	Catalyst Product Development Group, INC	Partial evidence	Indianapolis, IN, United StatesHQ checked Sep 21, 2026	51-200	19 contacts →
	Partial evidence “Catalyst was founded by product designers, engineers, and manufacturers for product designers, engineers, and manufacturers.” Source: RevenueBase Database · checked Sep 21, 2026
10	AED	Partial evidence	Bozeman, MT, United StatesHQ checked Sep 21, 2026	11-50	19 contacts →
	Partial evidence “AED is a full service product design and development firm with offices in Bozeman, Montana and Madison, Wisconsin.” Source: RevenueBase Database · checked Sep 21, 2026
11	Whiteboard Product Solutions	Indirect evidence	Minneapolis, MN, United StatesHQ checked Sep 21, 2026	11-50	19 contacts →
	Indirect evidence “WhiteBoard Product Solutions is a product development consultancy located in metropolitan Minneapolis/St.” Source: RevenueBase Database · checked Sep 21, 2026
12	Theory Communication And Design	Indirect evidence	Charlotte, NC, United StatesHQ checked Sep 21, 2026	11-50	16 contacts →
	Indirect evidence “There is a special kind of person that enjoys the madness of enthusiast-oriented media and relations.” Source: RevenueBase Database · checked Sep 21, 2026
13	Loma Architecture	Indirect evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	11-50	16 contacts →
	Indirect evidence “LOMA Architecture is a full-service architectural firm based in Houston, Texas.” Source: RevenueBase Database · checked Sep 21, 2026
14	Pole Zero Design INC	Strong evidence	Troy, MI, United StatesHQ checked Sep 21, 2026	51-200	16 contacts →
	Strong evidence “Pole Zero Design is an automotive design house specializing in OEM automotive weld & assembly lines for Body In White (BIW).” Source: RevenueBase Database · checked Sep 21, 2026
15	Hydra Design Labs	Strong evidence	Stanton, CA, United StatesHQ checked Sep 21, 2026	11-50	15 contacts →
	Strong evidence “Hydra Design Labs is a complete automotive design and fabrication studio that is committed to shaping the future of vehicles through bold visions and over 30 years of OEM…” Source: RevenueBase Database · checked Sep 21, 2026
16	Automotive Insight, LLC	Partial evidence	Birmingham, MI, United StatesHQ checked Sep 21, 2026	11-50	13 contacts →
	Partial evidence “We are automotive people.” Source: RevenueBase Database · checked Sep 21, 2026
17	Ipsumm INC	Partial evidence	Amesbury, MA, United StatesHQ checked Sep 21, 2026	11-50	12 contacts →
	Partial evidence “IPSUMM is a product development company focused on creative design using solid engineering skills.” Source: RevenueBase Database · checked Sep 21, 2026
18	Kolar Corporation	Partial evidence	Royal Oak, MI, United StatesHQ checked Sep 21, 2026	11-50	12 contacts →
	Partial evidence “Kolar Corporation is in the business of Engineering and Design and our goal is to be the best.” Source: RevenueBase Database · checked Sep 21, 2026
19	Strollo, INC	Partial evidence	San Diego, CA, United StatesHQ checked Sep 21, 2026	1-10	11 contacts →
	Partial evidence “Strollo (f/k/a The Strollo Design Company) provides comprehensive product design and engineering from concept through full-scale production.” Source: RevenueBase Database · checked Sep 21, 2026
20	Regent Associates, Inc., Architects	Partial evidence	Wayland, MA, United StatesHQ checked Sep 21, 2026	11-50	9 contacts →
	Partial evidence “Regent Associates, Inc, a full service architectural, planning and interior design firm, has afforded its clients a fresh design approach, creative ideas, and innovative problem…” Source: RevenueBase Database · checked Sep 21, 2026
21	Leadoff Studio	Partial evidence	New York, NY, United StatesHQ checked Sep 21, 2026	1-10	9 contacts →
	Partial evidence “Leadoff Studio is a New York-based industrial design, product development, brand design, packaging design, and manufacturing support studio for health, wellness, consumer product…” Source: RevenueBase Database · checked Sep 21, 2026
22	Leardon Solutions	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 21, 2026	11-50	9 contacts →
	Indirect evidence “Leardon Solutions is a trusted partner in global engineering and manufacturing services.” Source: RevenueBase Database · checked Sep 21, 2026
23	Sparc Plus, LLC	Strong evidence	Atlanta, GA, United StatesHQ checked Sep 21, 2026	1-10	8 contacts →
	Strong evidence “We are a dedicated and driven architectural design studio that is leading the automotive dealership and retail design industry nationwide.” Source: RevenueBase Database · checked Sep 21, 2026
24	Whitfield Associates, INC	Partial evidence	Dana Point, CA, United StatesHQ checked Sep 21, 2026	1-10	8 contacts →
	Partial evidence “Whitfield Associates, Inc.(WAI) is a full service and award winning architecture, planning, and interior design firm located in Dana Point, CA.” Source: RevenueBase Database · checked Sep 21, 2026
25	Applied Technology Integration	Partial evidence	Maumee, OH, United StatesHQ checked Sep 21, 2026	51-200	8 contacts →
	Partial evidence “Applied Technology Integration (ATI) is a full service product development firm offering product design, prototyping, engineering, testing, and manufacturing services.” Source: RevenueBase Database · checked Sep 21, 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 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 design services.
Partial evidence: Its own public description names part of automotive 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 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 310 automotive design services based in the United States

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Automotive design services based in the United States at a glance

As of Sep 21, 2026

23.6%Verified-email coverage

5.9Average contacts per company

1-10Median size (employees)

3.2%Largest-city concentration · Los Angeles

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

232

11-50

51-200

201-500

501-1,000

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 310 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 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 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 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 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, 429 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 21, 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 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 design services are there based in the United States?

RevenueBase identified 310 automotive 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?

Prefix Corporation, headquartered in Rochester Hills, tops this list with the largest team on record.

Which city has the most automotive design services?

Los Angeles leads with 10 headquartered companies, followed by San Diego (8) and Austin (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 429 verified decision-maker contacts tracked across these 310 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 21, 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.