Company lists · Data refreshed October 2026

Top 25 Electronics manufacturing testing companies worldwide

Name: Electronics manufacturing testing companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 12, 2026 5,468 companies tracked

RevenueBase identified 5,468 company matches for electronics manufacturing testing companies worldwide as of October 2026 and tracks 209,886 professional contacts across them, including 36,036 with verified work emails. The United States is the largest market and Shenzhen the largest hub.

This list covers company matches for electronics manufacturing testing companies 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 October 12, 2026. Country and city lists for electronics manufacturing testing companies 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 Oct 12, 2026 How this list was built

5,468Companies

209,886Contacts tracked

36,036Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest electronics manufacturing testing companies worldwide

Ranked by team size

Top 25 of 5,468 company matches for electronics manufacturing testing companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 12, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Keysight Technologies	Exact match	Santa Rosa, CA, United StatesHQ recorded Oct 12, 2026	10001+	12,254 contacts →
	Exact match “Keysight empowers innovators to explore, design, and bring world-changing technologies to life.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
2	NI National Instruments	Exact match	Austin, TX, United StatesHQ recorded Oct 12, 2026	5,001-10,000	7,353 contacts →
	Exact match “In 2023, Emerson acquired NI and introduced its new Test & Measurement business group.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
3	Amkor Technology, INC	Exact match	Tempe, AZ, United StatesHQ recorded Oct 12, 2026	10001+	7,003 contacts →
	Exact match “Amkor Technology, Inc.(Nasdaq: AMKR) is the world’s largest U.S-headquartered OSAT and is a global leader in outsourced semiconductor packaging and test services.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
4	Vvdn Technologies	Exact match	Gurgaon, IndiaHQ recorded Oct 12, 2026	10001+	6,572 contacts →
	Exact match “VVDN Technologies is a global provider of software, product engineering, electronics manufacturing services and solutions.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
5	Teradyne	Exact match	North Reading, MA, United StatesHQ recorded Oct 12, 2026	5,001-10,000	5,277 contacts →
	Exact match “Teradyne brings high-quality innovations such as smart devices, life-saving medical equipment and data storage systems to market, faster.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
6	ASE Global	Exact match	Kaohsiung, TaiwanHQ recorded Oct 12, 2026	10001+	3,772 contacts →
	Exact match “ASE (Advanced Semiconductor Engineering, Inc), a member of ASE Technology Holdings (NYSE:ASX) is one of the world's largest providers of outsourced semiconductor manufacturing…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
7	Dixon Technologies India Limited	Exact match	Noida, IndiaHQ recorded Oct 12, 2026	10001+	3,518 contacts →
	Exact match “Dixon Technologies (India) Limited has been leading the electronic manufacturing services (EMS) space in India.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
8	Fluke Corporation	Exact match	Everett, WA, United StatesHQ recorded Oct 12, 2026	1,001-5,000	3,103 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
9	Integrated Micro-Electronics, Inc. IMI Global	Exact match	Binan, PhilippinesHQ recorded Oct 12, 2026	10001+	2,265 contacts →
	Exact match “Integrated Micro-Electronics, Inc.(IMI), the manufacturing arm of AC Industrial Technology Holdings, Inc, a wholly-owned subsidiary of Ayala Corporation, is among the leading…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
10	Kimball Electronics	Exact match	Jasper, IN, United StatesHQ recorded Oct 12, 2026	5,001-10,000	2,236 contacts →
	Exact match “Kimball Electronics was founded in 1961.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
11	Syrma SGS Technology Limited	Exact match	Chennai, IndiaHQ recorded Oct 12, 2026	5,001-10,000	2,052 contacts →
	Exact match “Syrma SGS specializes in collaboration: whether you’re an iconic brand or a visionary startup, we’ll partner with your product team to deliver top-notch electronics manufacturing…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
12	UTAC	Exact match	SingaporeHQ recorded Oct 12, 2026	10001+	1,755 contacts →
	Exact match “UTAC Holdings Ltd (“UTAC”) is a leading independent provider of assembly and test services for a broad range of integrated circuits with diversified end uses, including…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
13	Spil 矽品	Exact match	台中市, TaiwanHQ recorded Oct 12, 2026	10001+	1,694 contacts →
	Exact match “Established in May 1984, Siliconware Precision Industries Co, Ltd.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
14	Formfactor INC	Exact match	Livermore, CA, United StatesHQ recorded Oct 12, 2026	1,001-5,000	1,578 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
15	Unisem	Exact match	Kuala Lumpur, MalaysiaHQ recorded Oct 12, 2026	5,001-10,000	1,239 contacts →
	Exact match “Unisem is a global provider of semiconductor assembly and test (OSAT) services for many of the world's most successful electronics companies.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
16	Carsem	Exact match	Ipoh, MalaysiaHQ recorded Oct 12, 2026	5,001-10,000	1,164 contacts →
	Exact match “Carsem is a leading provider of turnkey packaging and test services to the semiconductor industry, and offers one of the largest package and test portfolios in the world.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
17	Pt. Katolec Indonesia	Exact match	Cikarang, IndonesiaHQ recorded Oct 12, 2026	501-1,000	991 contacts →
	Exact match “Perusahaan Manufaktur Elektronik (Printed board mounting & Electronic equipment assembly)” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
18	Bosch Automotive Electronics India Private Limited	Exact match	Bangalore, IndiaHQ recorded Oct 12, 2026	1,001-5,000	893 contacts →
	Exact match “BOSCH AUTOMOTIVE ELECTRONICS INDIA PRIVATE LIMITED is an Electrical and Electronic Manufacturing company located in Service Road, Bengaluru, Karnataka, India.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
19	Cohu, INC	Exact match	San Diego, CA, United StatesHQ recorded Oct 12, 2026	1,001-5,000	822 contacts →
	Exact match “Cohu is the leading supplier of semiconductor test handlers and contactors, and a growing provider of automated test equipment, inspection & metrology solutions, and data…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
20	Cordon Group	Exact match	Dinan, FranceHQ recorded Oct 12, 2026	1,001-5,000	797 contacts →
	Exact match “Cordon Group was founded in 1989 by its CEO, Serge CORDON in Dinan (France) where the head office is located as well as one of its main repair centres.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
21	SPEA	Exact match	Volpiano, ItalyHQ recorded Oct 12, 2026	501-1,000	777 contacts →
	Exact match “Since 1976, SPEA designs and manufactures the best automatic test equipment for Semiconductor ICs, MEMS, electronic boards and modules.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
22	KYEC	Exact match	Chu-nan, ChinaHQ recorded Oct 12, 2026	5,001-10,000	739 contacts →
	Exact match “King Yuan Electronics Corp.(KYEC) provides wafer probing, final product test and assembly service for the semiconductor backend supply chain.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
23	PG Electroplast	Exact match	IndiaHQ recorded Oct 12, 2026	5,001-10,000	696 contacts →
	Exact match “PG Electroplast Limited (NSE:PGEL) is one of India’s leading players in the Electronic Manufacturing Services space, providing Original Design Manufacturing and Original Equipment…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
24	Neotech	Exact match	Chatsworth, CA, United StatesHQ recorded Oct 12, 2026	1,001-5,000	692 contacts →
	Exact match “NEOTech is a premier provider of electronic manufacturing services (EMS), integrated design engineering, and advanced supply chain solutions for the aerospace and defense, medical…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
25	OSI Electronics	Exact match	Hawthorne, CA, United StatesHQ recorded Oct 12, 2026	1,001-5,000	687 contacts →
	Exact match “OSI Electronics is a global Manufacturing Solutions provider headquartered in Hawthorne, CA, and Singapore.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “electronics manufacturing testing companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 5,468 electronics manufacturing testing companies worldwide

See the full list, filter by size, metro and specialty, and access 36,036 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Electronics manufacturing testing companies worldwide at a glance

As of Oct 12, 2026

17.2%Verified-email coverage

38.4Average contacts per company

11-50Median size (employees)

2.5%Largest-city concentration · Shenzhen

Oct 12, 2026Page data refreshed

Companies by employee count

1-10

1,824

11-50

1,792

51-200

1,117

201-500

359

501-1,000

146

1,001-5,000

145

5,001-10,000

10001+

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 electronics manufacturing testing companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “electronics manufacturing testing companies” 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 36,036 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 October 12, 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.

Electronics manufacturing testing companies by location

27 lists · largest first

Every Electronics manufacturing testing companies 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 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 “electronics manufacturing testing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many electronics manufacturing testing companies are there worldwide?

RevenueBase identified 5,468 company matches for electronics manufacturing testing companies worldwide as of October 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?

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

Which country has the most electronics manufacturing testing companies?

The United States leads with 899 companies, followed by India (823) and China (599). Every electronics manufacturing testing companies list by country and city is linked on this page.

Which city has the most electronics manufacturing testing companies?

Shenzhen leads with 138 company records, followed by Bangalore (128) and Pune (94).

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 36,036 professional contacts with verified work emails tracked across these 5,468 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 October 12, 2026.

Ready to reach these companies? Verified emails and direct dials for all 5,468 electronics manufacturing testing companies worldwide. Start with a free account, no credit card.

Download this list →

Related lists

Browse the directory

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.