Company lists · Data refreshed September 2026

Top 25 Automotive diagnostic services based in the United States

Name: Automotive diagnostic 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 3,241 companies tracked

RevenueBase identified 3,241 automotive diagnostic services headquartered in the United States as of September 2026 and tracks 16,788 professional contacts across them, including 3,063 with verified work emails. Houston is the largest hub.

This list covers automotive diagnostic 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

3,241Companies

16,788Contacts tracked

3,063Verified emails

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The 25 largest automotive diagnostic services based in the United States

Ranked by team size

Top 25 of 3,241 automotive diagnostic 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 diagnostic 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	Snap-On Business Solutions	Indirect evidence	Richfield, OH, United StatesHQ checked Sep 30, 2026	501-1,000	766 contacts →
	Indirect evidence “Snap-on Business Solutions (SBS) is a part of Snap-on Incorporated’s Repair Systems & Information Group.” Source: RevenueBase Database · checked Sep 30, 2026
2	Alldata	Partial evidence	Elk Grove, CA, United StatesHQ checked Sep 30, 2026	201-500	607 contacts →
	Partial evidence “ALLDATA® is the leading provider of OEM automotive repair information and solutions to the professional automotive service industry.” Source: RevenueBase Database · checked Sep 30, 2026
3	Mitchell1	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 30, 2026	201-500	471 contacts →
	Indirect evidence “Headquartered in San Diego, California, Mitchell 1 has provided quality repair information solutions to the motor vehicle industry for 100 years.” Source: RevenueBase Database · checked Sep 30, 2026
4	Mechanic ONE	Partial evidence	Canton, MI, United StatesHQ checked Sep 30, 2026	51-200	359 contacts →
	Partial evidence “21st century complete automotive repair facility designed to make car repairs simple, affordable and reliable.” Source: RevenueBase Database · checked Sep 30, 2026
5	Motor Information Systems	Partial evidence	Troy, MI, United StatesHQ checked Sep 30, 2026	201-500	353 contacts →
	Partial evidence “MOTOR Information Systems, one of the world’s premier suppliers of automotive data, has been trusted by the industry to provide accurate, thorough and timely information since…” Source: RevenueBase Database · checked Sep 30, 2026
6	Protech Automotive Solutions	Strong evidence	Lewisville, TX, United StatesHQ checked Sep 30, 2026	10001+	320 contacts →
	Strong evidence “At Protech Automotive Solutions®, we are dedicated to pioneering advanced diagnostic scanning, ADAS calibration, and mechanical expertise to ensure vehicle safety and reliability.” Source: RevenueBase Database · checked Sep 30, 2026
7	Noregon Systems	Indirect evidence	Greensboro, NC, United StatesHQ checked Sep 30, 2026	201-500	316 contacts →
	Indirect evidence “At Noregon, we are experts at acquiring, analyzing, and interpreting vehicle data.” Source: RevenueBase Database · checked Sep 30, 2026
8	Astech	Partial evidence	Plano, TX, United StatesHQ checked Sep 30, 2026	501-1,000	313 contacts →
	Partial evidence “Headquartered in Plano, Texas, asTech® focuses on providing OEM diagnostics to collision repair shops nationwide.” Source: RevenueBase Database · checked Sep 30, 2026
9	Dobbs Tire & Auto Centers	Partial evidence	High Ridge, MO, United StatesHQ checked Sep 30, 2026	1,001-5,000	264 contacts →
	Partial evidence “At Dobbs Tire & Auto Centers, we’re more than just a trusted name in tires and automotive service-we’re a team driven by excellence, powered by purpose, and committed to growing…” Source: RevenueBase Database · checked Sep 30, 2026
10	Diesel Laptops	Indirect evidence	Irmo, SC, United StatesHQ checked Sep 30, 2026	51-200	258 contacts →
	Indirect evidence “Diesel Laptops provides commercial truck efficiency solutions for truck repair facilities.” Source: RevenueBase Database · checked Sep 30, 2026
11	VEHLO	Indirect evidence	Knoxville, TN, United StatesHQ checked Sep 30, 2026	501-1,000	210 contacts →
	Indirect evidence “Vehlo solutions unlock potential across vehicle service and repair by giving power back to your people.” Source: RevenueBase Database · checked Sep 30, 2026
12	Opus IVS - US	Strong evidence	Dexter, MI, United StatesHQ checked Sep 30, 2026	501-1,000	169 contacts →
	Strong evidence “Opus IVS helps independent automotive shops repair the most complex vehicles fast with diagnostics, programming and live repair guidance from OE brand-specific master technicians.” Source: RevenueBase Database · checked Sep 30, 2026
13	Innova Electronics Corp	Strong evidence	Irvine, CA, United StatesHQ checked Sep 30, 2026	51-200	153 contacts →
	Strong evidence “THE AUTOMOTIVE AFTERMARKET INDUSTRY LEADER Innova Electronics Corporation is a leading supplier of test equipment and diagnostic reporting for the automotive aftermarket, offering…” Source: RevenueBase Database · checked Sep 30, 2026
14	Repairify, INC	Indirect evidence	Plano, TX, United StatesHQ checked Sep 30, 2026	501-1,000	132 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 30, 2026
15	Airpro Diagnostics	Indirect evidence	Jacksonville, FL, United StatesHQ checked Sep 30, 2026	201-500	126 contacts →
	Indirect evidence “Complete end-to-end solutions for collision, glass, and repair shops.” Source: RevenueBase Database · checked Sep 30, 2026
16	Mobile Auto Solutions	Partial evidence	Broadview, IL, United StatesHQ checked Sep 30, 2026	201-500	122 contacts →
	Partial evidence “Mobile Auto Solutions provides unrivaled experience, capabilities, training, and equipment to the automotive industry.” Source: RevenueBase Database · checked Sep 30, 2026
17	Elitek Vehicle Services	Indirect evidence	Farmers Branch, TX, United StatesHQ checked Sep 30, 2026	201-500	121 contacts →
	Indirect evidence “We are your solution for sublet repairs and a variety of critical vehicle repair solutions.” Source: RevenueBase Database · checked Sep 30, 2026
18	HP Tuners	Indirect evidence	Buffalo Grove, IL, United StatesHQ checked Sep 30, 2026	51-200	120 contacts →
	Indirect evidence “HP Tuners, Connect, Read, Edit, Write, Drive… HP Tuners, the home of VCM Suite and the MPVI since 2003.” Source: RevenueBase Database · checked Sep 30, 2026
19	Wrench, INC	Partial evidence	Seattle, WA, United StatesHQ checked Sep 30, 2026	51-200	115 contacts →
	Partial evidence “Wrench is a nationwide marketplace that connects automotive experts to vehicle owners, removing the hassle of vehicle ownership through trust, transparency, and convenience.” Source: RevenueBase Database · checked Sep 30, 2026
20	ATE	Indirect evidence	Sunnyvale, CA, United StatesHQ checked Sep 30, 2026	201-500	101 contacts →
	Indirect evidence “Your partner in auto safety.” Source: RevenueBase Database · checked Sep 30, 2026
21	Bolt On Technology Automotive	Partial evidence	Southampton, PA, United StatesHQ checked Sep 30, 2026	51-200	90 contacts →
	Partial evidence “BOLT ON TECHNOLOGY designs automotive software solutions that solve the most common struggles facing the Automotive Repair Industry.” Source: RevenueBase Database · checked Sep 30, 2026
22	SUN Devil Auto	Indirect evidence	Tempe, AZ, United StatesHQ checked Sep 30, 2026	201-500	73 contacts →
	Indirect evidence “Sun Devil Auto was started in 1978 and has grown to over 30 locations in 3 states, yet maintains that family owned feeling.” Source: RevenueBase Database · checked Sep 30, 2026
23	Lamb's Tire And Automotive	Partial evidence	Austin, TX, United StatesHQ checked Sep 30, 2026	51-200	73 contacts →
	Partial evidence “Lamb's Tire & Automotive is a GENUINE AUSTIN ORIGINAL founded in 1987 - Now with 16 Austin-area locations AUSTIN'S COMPLETE CAR CARE Headquarters Lamb’s Tire and Automotive…” Source: RevenueBase Database · checked Sep 30, 2026
24	REVV	Partial evidence	New York, NY, United StatesHQ checked Sep 30, 2026	51-200	71 contacts →
	Partial evidence “At Revv, we leverage AI and machine learning to empower automotive repair shops with revolutionary SaaS solutions that enhance safety, profitability, accuracy, and efficiency.” Source: RevenueBase Database · checked Sep 30, 2026
25	TRP Laboratories	Indirect evidence	Troy, MI, United StatesHQ checked Sep 30, 2026	51-200	70 contacts →
	Indirect evidence “TRP Laboratories provides standard and custom testing services across the United States.” 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 diagnostic 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 diagnostic services.
Partial evidence: Its own public description names part of automotive diagnostic services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name automotive diagnostic 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 3,241 automotive diagnostic services based in the United States

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Automotive diagnostic services based in the United States at a glance

As of Sep 30, 2026

18.2%Verified-email coverage

5.2Average contacts per company

1-10Median size (employees)

1.1%Largest-city concentration · Houston

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

2,277

11-50

781

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 3,241 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 diagnostic 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 diagnostic 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 diagnostic 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 diagnostic 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, 3,063 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 diagnostic 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 diagnostic services are there based in the United States?

RevenueBase identified 3,241 automotive diagnostic 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?

Snap-On Business Solutions, headquartered in Richfield, tops this list with the largest team on record.

Which city has the most automotive diagnostic services?

Houston leads with 37 headquartered companies, followed by Chicago (31) and Austin (26).

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 3,063 verified decision-maker contacts tracked across these 3,241 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.