Company lists · Data refreshed November 2026

Top 25 Engine diagnostics testing services worldwide

RevenueBase identified 1,739 company matches for engine diagnostics testing services worldwide as of November 2026 and tracks 33,824 professional contacts across them, including 8,969 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for engine diagnostics testing services worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 2026. Country and city lists for engine diagnostics testing services follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
1,739Companies
33,824Contacts tracked
8,969Verified emails
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The 25 largest engine diagnostics testing services worldwide

Ranked by team size
Top 25 of 1,739 company matches for engine diagnostics testing services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLuxembourgHQ recorded Nov 6, 202610001+12,649 contacts →

Exact match

“Since 1987, Eurofins has grown from one laboratory in Nantes, France to over staff across a network of independent companies in 59 countries, operating over 950 laboratories.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchMarietta, GA, United StatesHQ recorded Nov 6, 20261,001-5,000961 contacts →

Exact match

“Applied Technical Services assists commercial and industrial clients by providing inspection, testing, consulting engineering, and calibration services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchMontigny Le Bretonneux, FranceHQ recorded Nov 6, 2026501-1,000471 contacts →

Exact match

“We provide global testing services for automotive, aeronautic & defence industries : we perform environmental, mechanical, EMC and electrical tests.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchGermanyHQ recorded Nov 6, 20265,001-10,000432 contacts →

Exact match

“Vertrauen ist die Basis.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchGurgaon, IndiaHQ recorded Nov 6, 2026501-1,000392 contacts →

Exact match

“Incorporated in the year 1984 as Joint Venture with AVL List GmbH Austria Built Manufacturing facility Spread in 2.4 Acre Land In Gurgaon (Haryana ) in 1992.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchAachen, GermanyHQ recorded Nov 6, 20265,001-10,000367 contacts →

Exact match

“FEV is an internationally recognized leader in the design and development of internal combustion engines, conventional, electric, and alternative vehicle drive systems, energy…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchMinneapolis, MN, United StatesHQ recorded Nov 6, 20261,001-5,000326 contacts →

Exact match

“Watch our video on the history and culture of Pace at https://goo.gl/L3ruD3 or get a more detailed look through our company brochure at https://goo.gl/feMDwU!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchGreensboro, NC, United StatesHQ recorded Nov 6, 2026201-500320 contacts →

Exact match

“At Noregon, we are experts at acquiring, analyzing, and interpreting vehicle data.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchLandau In Der Pfalz, GermanyHQ recorded Nov 6, 20261,001-5,000289 contacts →

Exact match

“APL – passion becomes drive!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchLos Angeles, MI, United StatesHQ recorded Nov 6, 2026501-1,000287 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchIrmo, SC, United StatesHQ recorded Nov 6, 202651-200278 contacts →

Exact match

“Diesel Laptops provides commercial truck efficiency solutions for truck repair facilities.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchVirum, DenmarkHQ recorded Nov 6, 20261,001-5,000278 contacts →

Exact match

“This page represents a legacy brand that is now part of HBK (Hottinger Brüel & Kjær).”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchMalmö, SwedenHQ recorded Nov 6, 2026501-1,000254 contacts →

Exact match

“När den svenska marknaden för bilprovning avreglerades 2010 bestämde vi oss för att ta steget och göra något annorlunda.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchOttawa, ON, CanadaHQ recorded Nov 6, 2026201-500241 contacts →

Exact match

“For more than 30 years, MDS has been the unequivocal global leader in Gas Turbine Engine Solutions-its clients span the world’s most elite companies.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchAkron, VA, United StatesHQ recorded Nov 6, 2026201-500238 contacts →

Exact match

“MGA is recognized worldwide as one of the leading independent providers of testing services and equipment.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchHertfordshire, United KingdomHQ recorded Nov 6, 2026201-500238 contacts →

Exact match

“Founded in 2003, Normec i2 Analytical is one of Europe's leading environmental testing companies providing its customers a comprehensive range of analytical, monitoring and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchIndianapolis, United StatesHQ recorded Nov 6, 2026201-500220 contacts →

Exact match

“POLARIS Laboratories® can help you prevent maintenance failure.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchAachen, GermanyHQ recorded Nov 6, 2026501-1,000211 contacts →

Exact match

“Engineering is our Passion We are an international team of more than 850 employees with our own subsidiaries in eight countries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchPittsburgh, PA, United StatesHQ recorded Nov 6, 2026201-500211 contacts →

Exact match

“RJ Lee Group provides comprehensive laboratory testing and scientific consulting services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchBradford On Avon, MI, United KingdomHQ recorded Nov 6, 2026201-500205 contacts →

Exact match

“AB Dynamics is a leading designer, manufacturer and supplier of advanced testing and development solutions to the global automotive industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchDammam, Saudi ArabiaHQ recorded Nov 6, 202651-200200 contacts →

Exact match

“ALS Arabia is a diversified testing services organization with its headquarters located in Dammam, Saudi Arabia.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchIrvine, CA, United StatesHQ recorded Nov 6, 202651-200172 contacts →

Exact match

“THE AUTOMOTIVE AFTERMARKET INDUSTRY LEADER Innova Electronics Corporation is a leading supplier of test equipment and diagnostic reporting for the automotive aftermarket, offering…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchBudapest, HungaryHQ recorded Nov 6, 2026501-1,000157 contacts →

Exact match

“We create value for humans, animals and our environment- SYNLAB is the largest private laboratory service provider both in Hungary and Europe-wide.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchBurton, IN, United StatesHQ recorded Nov 6, 2026501-1,000156 contacts →

Exact match

“Trialon is now Element!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchBuffalo Grove, IL, United StatesHQ recorded Nov 6, 202651-200133 contacts →

Exact match

“HP Tuners, Connect, Read, Edit, Write, Drive… HP Tuners, the home of VCM Suite and the MPVI since 2003.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 1,739 engine diagnostics testing services worldwide

See the full list, filter by size, metro and specialty, and access 8,969 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Engine diagnostics testing services worldwide at a glance

As of Nov 6, 2026
26.5%Verified-email coverage
19.5Average contacts per company
1-10Median size (employees)
1.2%Largest-city concentration · Sao Paulo
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
884
11-50
532
51-200
163
201-500
42
501-1,000
18
1,001-5,000
11
5,001-10,000
4
10001+
1

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for engine diagnostics testing services are linked below.
What qualifies
Company records worldwide whose business descriptions match “engine diagnostics testing services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 8,969 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Engine diagnostics testing services by location

9 lists · largest first

Every Engine diagnostics testing services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “engine diagnostics testing services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many engine diagnostics testing services are there worldwide?

RevenueBase identified 1,739 company matches for engine diagnostics testing services worldwide as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Eurofins tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most engine diagnostics testing services?

The United States leads with 352 companies, followed by Germany (152) and the United Kingdom (124). Every engine diagnostics testing services list by country and city is linked on this page.

Which city has the most engine diagnostics testing services?

Sao Paulo leads with 20 company records, followed by Houston (14) and Pune (13).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 8,969 professional contacts with verified work emails tracked across these 1,739 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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 SmartSearch, 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.