Company lists · Data refreshed September 2026

Top 25 Automated test equipment manufacturers worldwide

RevenueBase identified 994 automated test equipment manufacturers worldwide as of September 2026 and tracks 46,753 professional contacts across them, including 16,119 with verified work emails. The United States is the largest market and Bangalore the largest hub.

This list covers automated test equipment manufacturers worldwide, 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 29, 2026. Country and city lists for automated test equipment manufacturers follow the table.

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 29, 2026 86% judged on-target in blind review
994Companies
46,753Contacts tracked
16,119Verified emails
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The 25 largest automated test equipment manufacturers worldwide

Ranked by team size
Top 25 of 994 automated test equipment manufacturers worldwide, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to automated test equipment manufacturers: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceSanta Rosa, CA, United StatesHQ checked Sep 29, 202610001+11,668 contacts →

Indirect evidence

“Keysight empowers innovators to explore, design, and bring world-changing technologies to life.”

Source: RevenueBase Database · checked Sep 29, 2026
2Partial evidenceAustin, TX, United StatesHQ checked Sep 29, 20265,001-10,0007,081 contacts →

Partial evidence

“In 2023, Emerson acquired NI and introduced its new Test & Measurement business group.”

Source: RevenueBase Database · checked Sep 29, 2026
3Strong evidenceBeaverton, OR, United StatesHQ checked Sep 29, 20261,001-5,0003,355 contacts →

Strong evidence

“We design and manufacture test and measurement solutions to break through the walls of complexity and accelerate global innovation.”

Source: RevenueBase Database · checked Sep 29, 2026
4Strong evidenceEverett, WA, United StatesHQ checked Sep 29, 20261,001-5,0002,931 contacts →

Strong evidence

“Fluke Corporation, a wholly owned subsidiary of Fortive Corporation (NYSE: FTV), is the world leader in the manufacture, distribution and service of electronic test tools and…”

Source: RevenueBase Database · checked Sep 29, 2026
5Partial evidenceLivermore, CA, United StatesHQ checked Sep 29, 20261,001-5,0001,485 contacts →

Partial evidence

“FormFactor is a leading provider of essential test and measurement technologies along the full IC life cycle – from characterization, modeling, reliability, and design debug, to…”

Source: RevenueBase Database · checked Sep 29, 2026
6Strong evidenceSan Diego, CA, United StatesHQ checked Sep 29, 20261,001-5,000769 contacts →

Strong evidence

“Cohu is the leading supplier of semiconductor test handlers and contactors, and a growing provider of automated test equipment, inspection & metrology solutions, and data…”

Source: RevenueBase Database · checked Sep 29, 2026
7Strong evidenceVolpiano, ItalyHQ checked Sep 29, 2026501-1,000767 contacts →

Strong evidence

“Since 1976, SPEA designs and manufactures the best automatic test equipment for Semiconductor ICs, MEMS, electronic boards and modules.”

Source: RevenueBase Database · checked Sep 29, 2026
8Partial evidenceSingaporeHQ checked Sep 29, 20261,001-5,000617 contacts →

Partial evidence

“AEM is a global leader in test innovation.”

Source: RevenueBase Database · checked Sep 29, 2026
9Partial evidenceGenk, MexicoHQ checked Sep 29, 2026501-1,000559 contacts →

Partial evidence

“IPTE is a worldwide leader in automation solutions for the production and testing of electronics.”

Source: RevenueBase Database · checked Sep 29, 2026
10Indirect evidenceMontreal, QC, CanadaHQ checked Sep 29, 20261,001-5,000540 contacts →

Indirect evidence

“As of January 2026, Averna and Spherea joined forces to form the Spherea Group.”

Source: RevenueBase Database · checked Sep 29, 2026
11Indirect evidencePlymouth, MI, United StatesHQ checked Sep 29, 2026501-1,000509 contacts →

Indirect evidence

“Link Group, Inc.(LINK), parent to Link Engineering Company, Link Industries and Tescor, consists of businesses that offer customized solutions, with a focus on delivering high…”

Source: RevenueBase Database · checked Sep 29, 2026
12Indirect evidenceTaoyuan City, TaiwanHQ checked Sep 29, 20261,001-5,000498 contacts →

Indirect evidence

“Founded in 1984, Chroma ATE Inc.”

Source: RevenueBase Database · checked Sep 29, 2026
13Strong evidenceChestnut Ridge, NY, United StatesHQ checked Sep 29, 2026201-500473 contacts →

Strong evidence

“Teledyne LeCroy is a leading manufacturer of advanced oscilloscopes, protocol analyzers, and other test instruments that verify performance, validate compliance, and debug complex…”

Source: RevenueBase Database · checked Sep 29, 2026
14Partial evidenceToulouse, FranceHQ checked Sep 29, 20261,001-5,000432 contacts →

Partial evidence

“Spherea Group: A 60-Year Legacy Since 1965, the Spherea Group has built a strong legacy in test and quality solutions, rooted in the electronics activities of Aerospatiale, where…”

Source: RevenueBase Database · checked Sep 29, 2026
15Partial evidenceZhubei, TaiwanHQ checked Sep 29, 20261,001-5,000234 contacts →

Partial evidence

“Founded in 1995 and headquartered in Hsinchu, Taiwan, MPI Corporation is a global technology leader in test and measurement solutions spanning the full integrated-circuit…”

Source: RevenueBase Database · checked Sep 29, 2026
16Strong evidenceBayan Lepas, MalaysiaHQ checked Sep 29, 202651-200199 contacts →

Strong evidence

“Aemulus’ core expertise is in the design, engineering, and development of automated test equipment (ATE), and test and measurement instruments.”

Source: RevenueBase Database · checked Sep 29, 2026
17Strong evidenceSan Jose, CA, United StatesHQ checked Sep 29, 2026501-1,000186 contacts →

Strong evidence

“GES is among the global leaders in automation, test and measurement.”

Source: RevenueBase Database · checked Sep 29, 2026
18Partial evidenceRadolfzell, GermanyHQ checked Sep 29, 2026201-500173 contacts →

Partial evidence

“We develop reliable customer-specific test solutions worldwide.”

Source: RevenueBase Database · checked Sep 29, 2026
19Strong evidenceHolland, MI, United StatesHQ checked Sep 29, 2026201-500164 contacts →

Strong evidence

“For more than 55 years, Thermotron has provided quality environmental test equipment.”

Source: RevenueBase Database · checked Sep 29, 2026
20Indirect evidenceHsinchu, TaiwanHQ checked Sep 29, 20261,001-5,000162 contacts →

Indirect evidence

“Founded in 1994, iST began its business from IC circuit debugging and modification and gradually expanded its scope of operations, including Failure Analysis, Reliability…”

Source: RevenueBase Database · checked Sep 29, 2026
21Strong evidenceFoothill Ranch, CA, United StatesHQ checked Sep 29, 202651-200153 contacts →

Strong evidence

“Chroma is the largest worldwide provider of power test instruments and automated test systems.”

Source: RevenueBase Database · checked Sep 29, 2026
22Strong evidenceOulu, FinlandHQ checked Sep 29, 2026201-500153 contacts →

Strong evidence

“As a world-leading custom test and assembly automation solutions provider, we create efficient, powerful and reliable solutions for the manufacturing of automotive, electric…”

Source: RevenueBase Database · checked Sep 29, 2026
23Strong evidenceAhmedabad, IndiaHQ checked Sep 29, 202651-200138 contacts →

Strong evidence

“We design, configure and integrate Automated Test Equipment, Monitoring & Automation solutions using IoT and conventional technologies.”

Source: RevenueBase Database · checked Sep 29, 2026
24Indirect evidenceTodi, ItalyHQ checked Sep 29, 202651-200137 contacts →

Indirect evidence

“Founded in 1988, with its Semiconductor Division, ELES offer comprehends also the Power and IoT sectors.”

Source: RevenueBase Database · checked Sep 29, 2026
25Strong evidenceTlajomulco, MexicoHQ checked Sep 29, 202651-200133 contacts →

Strong evidence

“We provide high-quality customized solutions for testing and automation for electronics manufacturers”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 994 automated test equipment manufacturers worldwide

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Automated test equipment manufacturers worldwide at a glance

As of Sep 29, 2026
34.5%Verified-email coverage
47.0Average contacts per company
11-50Median size (employees)
2.6%Largest-city concentration · Bangalore
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
317
11-50
376
51-200
182
201-500
50
501-1,000
26
1,001-5,000
35
5,001-10,000
2
10001+
3

Email recency is reported on each country list linked below.

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 automated test equipment manufacturers, 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.
Coverage
Every country. Country and city lists for automated test equipment manufacturers are linked below.
What qualifies
Companies worldwide whose own description of what they do matches “automated test equipment manufacturers”. 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 automated test equipment manufacturers), 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 automated test equipment manufacturers, and records with no verified work email.
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, 16,119 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 29, 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.

Automated test equipment manufacturers by location

8 lists · largest first

Every Automated test equipment manufacturers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 automated test equipment manufacturers, 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 automated test equipment manufacturers are there worldwide?

RevenueBase identified 994 automated test equipment manufacturers worldwide 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?

Keysight Technologies, headquartered in Santa Rosa, tops this list with the largest team on record.

Which country has the most automated test equipment manufacturers?

The United States leads with 225 companies, followed by India (113) and China (104). Every automated test equipment manufacturers list by country and city is linked on this page.

Which city has the most automated test equipment manufacturers?

Bangalore leads with 26 headquartered companies, followed by Pune (12) and Chennai (11).

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 16,119 verified decision-maker contacts tracked across these 994 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 29, 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.