Company lists · Data refreshed September 2026

Top 25 Automotive software testing companies based in the United States

Name: Automotive software testing companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 184 companies tracked

RevenueBase identified 184 automotive software testing companies headquartered in the United States as of September 2026 and tracks 12,186 professional contacts across them, including 4,400 with verified work emails. San Francisco is the largest hub.

This list covers automotive software testing companies 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 27, 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 27, 2026 86% judged on-target in blind review

184Companies

12,186Contacts tracked

4,400Verified emails

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The 25 largest automotive software testing companies based in the United States

Ranked by team size

Top 25 of 184 automotive software testing companies based in the United States, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to automotive software testing companies: 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	Teradyne	Indirect evidence	North Reading, MA, United StatesHQ checked Sep 27, 2026	5,001-10,000	4,720 contacts →
	Indirect evidence “Teradyne brings high-quality innovations such as smart devices, life-saving medical equipment and data storage systems to market, faster.” Source: RevenueBase Database · checked Sep 27, 2026
2	Applause	Strong evidence	Framingham, MA, United StatesHQ checked Sep 27, 2026	201-500	1,396 contacts →
	Strong evidence “Applause is the global leader in managed software testing services and digital quality.” Source: RevenueBase Database · checked Sep 27, 2026
3	A1qa	Strong evidence	Decatur, GA, United StatesHQ checked Sep 27, 2026	1,001-5,000	980 contacts →
	Strong evidence “a1qa is a global software testing and QA outsourcing company trusted by IT firms and Fortune 500 enterprises to deliver software quality that holds under real-world pressure.” Source: RevenueBase Database · checked Sep 27, 2026
4	Sonatus	Indirect evidence	Sunnyvale, CA, United StatesHQ checked Sep 27, 2026	201-500	274 contacts →
	Indirect evidence “Sonatus delivers cloud-to-edge AI for smart vehicles.” Source: RevenueBase Database · checked Sep 27, 2026
5	Kett Engineering Corporation	Strong evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	501-1,000	250 contacts →
	Strong evidence “Kett Engineering Corporation has been operating for over 60 years and has spent the past 28 years dedicating its services to supporting the automotive testing and staffing needs…” Source: RevenueBase Database · checked Sep 27, 2026
6	MGA Research Corporation	Partial evidence	Akron, NY, United StatesHQ checked Sep 27, 2026	201-500	224 contacts →
	Partial evidence “MGA is recognized worldwide as one of the leading independent providers of testing services and equipment.” Source: RevenueBase Database · checked Sep 27, 2026
7	Burke Porter, An Ascential Technologies Brand	Partial evidence	Grand Rapids, MI, United StatesHQ checked Sep 27, 2026	201-500	223 contacts →
	Partial evidence “Building on its history of leadership in the automotive industry, Burke Porter is now an Ascential Technologies company.” Source: RevenueBase Database · checked Sep 27, 2026
8	Parasoft	Strong evidence	Monrovia, CA, United StatesHQ checked Sep 27, 2026	201-500	221 contacts →
	Strong evidence “Parasoft helps organizations continuously deliver quality software with its market-proven, integrated suite of automated software testing tools.” Source: RevenueBase Database · checked Sep 27, 2026
9	AVL In North America	Indirect evidence	Plymouth, MI, United StatesHQ checked Sep 27, 2026	501-1,000	198 contacts →
	Indirect evidence “AVL North America Inc: Established in 1994 for AVL to serve its North American clients directly, AVL North America has a team of ~550 people and has technical centers in Ann…” Source: RevenueBase Database · checked Sep 27, 2026
10	Impactqa	Strong evidence	Plano, United StatesHQ checked Sep 27, 2026	201-500	181 contacts →
	Strong evidence “Welcome to ImpactQA – Where Excellence Meets Innovation in Software Testing and QA Consulting About Us ImpactQA is a premier Software Testing and QA consultancy delivering…” Source: RevenueBase Database · checked Sep 27, 2026
11	Cariad, INC	Indirect evidence	Mountain View, CA, United StatesHQ checked Sep 27, 2026	201-500	158 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 27, 2026
12	Qualitylogic	Indirect evidence	Boise, ID, United StatesHQ checked Sep 27, 2026	51-200	157 contacts →
	Indirect evidence “QualityLogic delivers full spectrum QA products and services to technology companies in rapidly evolving markets, or where transformative technologies are changing the world.” Source: RevenueBase Database · checked Sep 27, 2026
13	Innova Electronics Corp	Partial evidence	Irvine, CA, United StatesHQ checked Sep 27, 2026	51-200	153 contacts →
	Partial 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 27, 2026
14	Intrepid Control Systems	Indirect evidence	Troy, MI, United StatesHQ checked Sep 27, 2026	201-500	145 contacts →
	Indirect evidence “Intrepid Control Systems is a global provider of Innovative Vehicle Network and Embedded tools.” Source: RevenueBase Database · checked Sep 27, 2026
15	Circuit Check INC	Partial evidence	Maple Grove, MN, United StatesHQ checked Sep 27, 2026	201-500	129 contacts →
	Partial evidence “Circuit Check is a leading provider of automated test systems and test fixtures for complex electronic products for the automotive, military/aerospace, medical, industrial, and…” Source: RevenueBase Database · checked Sep 27, 2026
16	Rainforest QA	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 27, 2026	11-50	124 contacts →
	Indirect evidence “Automate your e2e tests without the time-consuming drudgery of test maintenance.” Source: RevenueBase Database · checked Sep 27, 2026
17	HP Tuners	Indirect evidence	Buffalo Grove, IL, United StatesHQ checked Sep 27, 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 27, 2026
18	RTTS	Partial evidence	NY, United StatesHQ checked Sep 27, 2026	51-200	120 contacts →
	Partial evidence “RTTS is the premier pure-play QA & Testing organization that specializes in Test Automation.” Source: RevenueBase Database · checked Sep 27, 2026
19	Millbrook	Partial evidence	Livonia, MI, United StatesHQ checked Sep 27, 2026	501-1,000	103 contacts →
	Partial evidence “Millbrook provides vehicle test and validation services and systems to customers in the automotive, transport, tyre, petrochemical and defence industries.” Source: RevenueBase Database · checked Sep 27, 2026
20	Accurate Technologies INC	Partial evidence	Novi, MI, United StatesHQ checked Sep 27, 2026	51-200	102 contacts →
	Partial evidence “With a quarter of a century of experience in developing cutting-edge software and hardware solutions for the measurement, calibration and diagnostics (MCD) sector, Accurate…” Source: RevenueBase Database · checked Sep 27, 2026
21	Bolt On Technology Automotive	Strong evidence	Southampton, PA, United StatesHQ checked Sep 27, 2026	51-200	90 contacts →
	Strong evidence “BOLT ON TECHNOLOGY designs automotive software solutions that solve the most common struggles facing the Automotive Repair Industry.” Source: RevenueBase Database · checked Sep 27, 2026
22	Verifaya Corporation	Strong evidence	Milpitas, CA, United StatesHQ checked Sep 27, 2026	51-200	87 contacts →
	Strong evidence “Verifaya is the new-age automated testing software provider that helps businesses overcome their testing challenges and accelerate business growth.” Source: RevenueBase Database · checked Sep 27, 2026
23	TRP Laboratories	Partial evidence	Troy, MI, United StatesHQ checked Sep 27, 2026	51-200	70 contacts →
	Partial evidence “TRP Laboratories provides standard and custom testing services across the United States.” Source: RevenueBase Database · checked Sep 27, 2026
24	DG Technologies	Indirect evidence	Farmington Hills, MI, United StatesHQ checked Sep 27, 2026	11-50	58 contacts →
	Indirect evidence “DG Technologies (formerly Dearborn Group) is a value leader in vehicle network solutions for in-vehicle and controller area networks providing diagnostic, reprogramming…” Source: RevenueBase Database · checked Sep 27, 2026
25	Fusion Systems And Services INC	Partial evidence	Schaumburg, IL, United StatesHQ checked Sep 27, 2026	51-200	53 contacts →
	Partial evidence “Fusion Systems and Services Inc is a Software products and IT consultancy providing company.” Source: RevenueBase Database · checked Sep 27, 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 software testing companies. 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 software testing companies.
Partial evidence: Its own public description names part of automotive software testing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name automotive software testing companies. 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 184 automotive software testing companies based in the United States

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Automotive software testing companies based in the United States at a glance

As of Sep 27, 2026

36.1%Verified-email coverage

66.2Average contacts per company

11-50Median size (employees)

3.3%Largest-city concentration · San Francisco

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

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 184 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 software testing companies, 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 software testing companies”. 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 software testing companies), 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 software testing companies, 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, 4,400 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 27, 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 software testing companies, 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 software testing companies are there based in the United States?

RevenueBase identified 184 automotive software testing companies 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?

Teradyne, headquartered in North Reading, tops this list with the largest team on record.

Which city has the most automotive software testing companies?

San Francisco leads with 6 headquartered companies, followed by New York (5) and Novi (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 4,400 verified decision-maker contacts tracked across these 184 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 27, 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.