Company lists · Data refreshed September 2026
Top 25 Semiconductor testing services based in the United States
RevenueBase identified 228 company matches for semiconductor testing services associated with the United States as of September 2026 and tracks 26,260 professional contacts across them, including 8,277 with verified work emails. San Jose is the largest hub.
This list covers company matches for semiconductor testing services associated with the United States, 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 September 17, 2026.
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.
The 25 largest semiconductor testing services based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 7,081 contacts → | ||||
Exact match “In 2023, Emerson acquired NI and introduced its new Test & Measurement business group.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 2 | 6,435 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 · Sep 17, 2026 · View company records in RevenueBase | |||||
| 3 | 4,720 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 · Sep 17, 2026 · View company records in RevenueBase | |||||
| 4 | 1,485 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 · Sep 17, 2026 · View company records in RevenueBase | |||||
| 5 | 769 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 · Sep 17, 2026 · View company records in RevenueBase | |||||
| 6 | 632 contacts → | ||||
Exact match “When it comes to understanding the physical structure, chemical properties and performance of advanced materials and integrated circuitry, no other scientific services company…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 7 | 222 contacts → | ||||
Exact match “GRL is the world’s leading Engineering Services firm helping engineers solve difficult hardware design and validation challenges in adopting digital interface technologies.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 8 | 217 contacts → | ||||
Exact match “Our mission: to deliver secure, reliable, state-of-the-art semiconductors and semiconductor services with unwavering integrity.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 9 | 179 contacts → | ||||
Exact match “Nidec SV Probe was founded in 1994, and engages in the manufacture, marketing, and service of high performance probe cards and test solutions for the semiconductor industry.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 10 | 147 contacts → | ||||
Exact match “For over 400 years, intrepid mariners have embarked on long journeys into uncharted waters.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 11 | 136 contacts → | ||||
Exact match “Micro Control Company is the global leader in burn-in with test systems, committed to delivering excellence and innovation for over 50 years.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 12 | 134 contacts → | ||||
Exact match “Founded in 1958, Trio-Tech International (NYSE MKT: TRT) is a leading provider of semiconductor testing services, manufacturing solutions, and value-added distribution services.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 13 | 132 contacts → | ||||
Exact match “ISE Labs is a one-stop semiconductor engineering service provider.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 14 | 95 contacts → | ||||
Exact match “Delivering world-class electronic test and testability solutions around the globe in semiconductor, systems and functional testing.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 15 | 92 contacts → | ||||
Exact match “Founded in 1991, Johnstech offers test contactors and related services with the highest electrical and mechanical performance on the market, ensuring global semiconductor…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 16 | 64 contacts → | ||||
Exact match “Harbor Electronics began fabricating highly specialized printed circuit boards for the ATE industry in 1995.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 17 | 57 contacts → | ||||
Exact match “DCG Systems is the leading supplier of equipment that enables localization and characterization of electrical faults in integrated circuits, packages and board assemblies.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 18 | 53 contacts → | ||||
Exact match “Founded in 1984, Chroma ATE, Inc.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 19 | 51 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 20 | 49 contacts → | ||||
Exact match “CheckSum has been delivering reliable, cost-effective, and easy-to-use test solutions to OEMs and contract manufacturers since 1987.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 21 | 45 contacts → | ||||
Exact match “Six Sigma Microelectronics, part of Winslow Automation, Inc, has over 35 years of experience providing high-reliability integrated circuit solutions for military and space…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 22 | 42 contacts → | ||||
Exact match “ClassOne Equipment is a unique company that has been serving the global semiconductor industry since 2002, and today, we offer customers a very broad selection of new and…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 23 | 38 contacts → | ||||
Exact match “Celadon Systems designs and manufactures ultra high performance probe cards for the semiconductor industry.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 24 | 38 contacts → | ||||
Exact match “Oneida Research Services® (ORS) offers specialized laboratory testing services to support the microelectronics, telecommunications, aerospace, automotive, medical, and defense…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase | |||||
| 25 | 37 contacts → | ||||
Exact match “Ironwood Electronics offers high performance test sockets and adapters for both engineering validation and production use.” Recorded in the RevenueBase company graph · Sep 17, 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 “semiconductor testing services”. 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 228 semiconductor testing services based in the United States
See the full list, filter by size, metro and specialty, and access 8,277 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Semiconductor testing services based in the United States at a glance
As of Sep 17, 2026Companies by employee count
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 228 companies.
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.
- What qualifies
- Company records associated with the United States whose business descriptions match “semiconductor 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 8,277 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 September 17, 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.
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 “semiconductor testing services”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many semiconductor testing services are there based in the United States?
RevenueBase identified 228 company matches for semiconductor testing services associated with the United States as of September 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?
NI National Instruments tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most semiconductor testing services?
San Jose leads with 13 company records, followed by Austin (11) and Fremont (10).
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 8,277 professional contacts with verified work emails tracked across these 228 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 September 17, 2026.
Ready to reach these companies? Verified emails and direct dials for all 228 semiconductor testing services based in the United States. Start with a free account, no credit card.
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Semiconductor testing services by geography
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.
More company lists
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- Lists A-Z
- New lists
- Semiconductor testing services based in China
- Semiconductor testing services based in Germany
- Semiconductor testing services based in India
- Semiconductor testing services based in Malaysia
- Semiconductor testing services based in Taiwan
- Semiconductor testing services based in the United Kingdom
Company intelligence · public preview
Top 25 semiconductor testing services based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 228 matching company records for semiconductor testing services based in the United States, with 26,260 tracked contacts and 8,277 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 17, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 semiconductor testing services based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  NI National Instrumentsni.comHQ: Austin, TX, United StatesReported employees: 5,001-10,000 | Austin, TX, United States | 5,001-10,000 | Exact match | 7,081 contacts → |
“In 2023, Emerson acquired NI and introduced its new Test & Measurement business group.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Amkor Technology, INCamkor.comHQ: Tempe, AZ, United StatesReported employees: 10001+ | Tempe, AZ, United States | 10001+ | Exact match | 6,435 contacts → |
“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 description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Teradyneteradyne.com HQ: North Reading, MA, United StatesReported employees: 5,001-10,000 | North Reading, MA, United States | 5,001-10,000 | Exact match | 4,720 contacts → |
“Teradyne brings high-quality innovations such as smart devices, life-saving medical equipment and data storage systems to market, faster.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Formfactor INCformfactor.com HQ: Livermore, CA, United StatesReported employees: 1,001-5,000 | Livermore, CA, United States | 1,001-5,000 | Exact match | 1,485 contacts → |
“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 description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Cohu, INCcohu.com HQ: San Diego, CA, United StatesReported employees: 1,001-5,000 | San Diego, CA, United States | 1,001-5,000 | Exact match | 769 contacts → |
“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 description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Eurofins EAG Laboratorieseag.com HQ: San Diego, CA, United StatesReported employees: 1,001-5,000 | San Diego, CA, United States | 1,001-5,000 | Exact match | 632 contacts → |
“When it comes to understanding the physical structure, chemical properties and performance of advanced materials and integrated circuitry, no other scientific services company…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Granite River Labs INCgraniteriverlabs.com HQ: Santa Clara, CA, United StatesReported employees: 201-500 | Santa Clara, CA, United States | 201-500 | Exact match | 222 contacts → |
“GRL is the world’s leading Engineering Services firm helping engineers solve difficult hardware design and validation challenges in adopting digital interface technologies.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Integra Technologies INCintegra-tech.comHQ: Wichita, KS, United StatesReported employees: 201-500 | Wichita, KS, United States | 201-500 | Exact match | 217 contacts → |
“Our mission: to deliver secure, reliable, state-of-the-art semiconductors and semiconductor services with unwavering integrity.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Nidec SV Probenidecsvprobe.com HQ: Tempe, AZ, United StatesReported employees: 501-1,000 | Tempe, AZ, United States | 501-1,000 | Exact match | 179 contacts → |
“Nidec SV Probe was founded in 1994, and engages in the manufacture, marketing, and service of high performance probe cards and test solutions for the semiconductor industry.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Shellback Semiconductor Technologyshellbacksemi.comHQ: Coopersburg, PA, United StatesReported employees: 201-500 | Coopersburg, PA, United States | 201-500 | Exact match | 147 contacts → |
“For over 400 years, intrepid mariners have embarked on long journeys into uncharted waters.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Micro Control Companymicrocontrol.com HQ: Minneapolis, MN, United StatesReported employees: 201-500 | Minneapolis, MN, United States | 201-500 | Exact match | 136 contacts → |
“Micro Control Company is the global leader in burn-in with test systems, committed to delivering excellence and innovation for over 50 years.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Trio-Tech Internationaltriotech.com HQ: Van Nuys, CA, United StatesReported employees: 501-1,000 | Van Nuys, CA, United States | 501-1,000 | Exact match | 134 contacts → |
“Founded in 1958, Trio-Tech International (NYSE MKT: TRT) is a leading provider of semiconductor testing services, manufacturing solutions, and value-added distribution services.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | ISE Labs ASEiselabs.com HQ: Fremont, CA, United StatesReported employees: 51-200 | Fremont, CA, United States | 51-200 | Exact match | 132 contacts → |
“ISE Labs is a one-stop semiconductor engineering service provider.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | ANORAanoralabs.com HQ: Richardson, TX, United StatesReported employees: 201-500 | Richardson, TX, United States | 201-500 | Exact match | 95 contacts → |
“Delivering world-class electronic test and testability solutions around the globe in semiconductor, systems and functional testing.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Johnstech Internationaljohnstech.com HQ: Minneapolis, MN, United StatesReported employees: 51-200 | Minneapolis, MN, United States | 51-200 | Exact match | 92 contacts → |
“Founded in 1991, Johnstech offers test contactors and related services with the highest electrical and mechanical performance on the market, ensuring global semiconductor…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Harbor Electronicsharbor-electronics.com HQ: Santa Clara, CA, United StatesReported employees: 501-1,000 | Santa Clara, CA, United States | 501-1,000 | Exact match | 64 contacts → |
“Harbor Electronics began fabricating highly specialized printed circuit boards for the ATE industry in 1995.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  DCG Systemsfei.comHQ: Fremont, CA, United StatesReported employees: 201-500 | Fremont, CA, United States | 201-500 | Exact match | 57 contacts → |
“DCG Systems is the leading supplier of equipment that enables localization and characterization of electrical faults in integrated circuits, packages and board assemblies.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Chroma Ate, Inc. USAchromaus.com HQ: Irvine, CA, United StatesReported employees: 51-200 | Irvine, CA, United States | 51-200 | Exact match | 53 contacts → |
“Founded in 1984, Chroma ATE, Inc.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  SMT Corpsmtcorp.comHQ: Sandy Hook, CT, United StatesReported employees: 51-200 | Sandy Hook, CT, United States | 51-200 | Exact match | 51 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 20 | Checksumchecksum.com HQ: Arlington, WA, United StatesReported employees: 11-50 | Arlington, WA, United States | 11-50 | Exact match | 49 contacts → |
“CheckSum has been delivering reliable, cost-effective, and easy-to-use test solutions to OEMs and contract manufacturers since 1987.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | SIX Sigma Microelectronicssixsigmamicro.com HQ: Milpitas, CA, United StatesReported employees: 51-200 | Milpitas, CA, United States | 51-200 | Exact match | 45 contacts → |
“Six Sigma Microelectronics, part of Winslow Automation, Inc, has over 35 years of experience providing high-reliability integrated circuit solutions for military and space…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Classone Equipmentclassoneequipment.com HQ: Decatur, GA, United StatesReported employees: 51-200 | Decatur, GA, United States | 51-200 | Exact match | 42 contacts → |
“ClassOne Equipment is a unique company that has been serving the global semiconductor industry since 2002, and today, we offer customers a very broad selection of new and…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Celadon Systems, INCceladonsystems.com HQ: Burnsville, MN, United StatesReported employees: 11-50 | Burnsville, MN, United States | 11-50 | Exact match | 38 contacts → |
“Celadon Systems designs and manufactures ultra high performance probe cards for the semiconductor industry.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Oneida Research Services, INCorslabs.com HQ: Whitesboro, NY, United StatesReported employees: 51-200 | Whitesboro, NY, United States | 51-200 | Exact match | 38 contacts → |
“Oneida Research Services® (ORS) offers specialized laboratory testing services to support the microelectronics, telecommunications, aerospace, automotive, medical, and defense…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Ironwood Electronicsironwoodelectronics.com HQ: Eagan, MN, United StatesReported employees: 51-200 | Eagan, MN, United States | 51-200 | Exact match | 37 contacts → |
“Ironwood Electronics offers high performance test sockets and adapters for both engineering validation and production use.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 228 company matches
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Semiconductor testing services: dataset insights
September 17, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
228 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 228 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 17, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for semiconductor testing services?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many semiconductor testing services did RevenueBase find based in the United States?
The saved snapshot records 228 matching company records, 26,260 tracked contacts and 8,277 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 17, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Semiconductor testing services by geography
Cite this list
RevenueBase Data Team. Top 25 semiconductor testing services based in the United States. Snapshot: September 17, 2026. https://revenuebase.ai/companies/semiconductor-testing-services/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Semiconductor testing services based in China
- Semiconductor testing services based in Germany
- Semiconductor testing services based in India
- Semiconductor testing services based in Malaysia
- Semiconductor testing services based in Taiwan
- Semiconductor testing services based in the United Kingdom
Company intelligence · public preview
Top 25 semiconductor testing services based in the United States
RevenueBase records 228 matching company records for semiconductor testing services based in the United States, with 26,260 tracked contacts and 8,277 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 17, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 semiconductor testing services based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | NI National Instrumentsni.com HQ: Austin, TX, United StatesReported employees: 5,001-10,000 | Austin, TX, United States | 5,001-10,000 | Exact match | 7,081 contacts → |
“In 2023, Emerson acquired NI and introduced its new Test & Measurement business group.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Amkor Technology, INCamkor.com HQ: Tempe, AZ, United StatesReported employees: 10001+ | Tempe, AZ, United States | 10001+ | Exact match | 6,435 contacts → |
“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 description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Teradyneteradyne.com HQ: North Reading, MA, United StatesReported employees: 5,001-10,000 | North Reading, MA, United States | 5,001-10,000 | Exact match | 4,720 contacts → |
“Teradyne brings high-quality innovations such as smart devices, life-saving medical equipment and data storage systems to market, faster.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Formfactor INCformfactor.com HQ: Livermore, CA, United StatesReported employees: 1,001-5,000 | Livermore, CA, United States | 1,001-5,000 | Exact match | 1,485 contacts → |
“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 description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Cohu, INCcohu.com HQ: San Diego, CA, United StatesReported employees: 1,001-5,000 | San Diego, CA, United States | 1,001-5,000 | Exact match | 769 contacts → |
“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 description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Eurofins EAG Laboratorieseag.com HQ: San Diego, CA, United StatesReported employees: 1,001-5,000 | San Diego, CA, United States | 1,001-5,000 | Exact match | 632 contacts → |
“When it comes to understanding the physical structure, chemical properties and performance of advanced materials and integrated circuitry, no other scientific services company…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Granite River Labs INCgraniteriverlabs.com HQ: Santa Clara, CA, United StatesReported employees: 201-500 | Santa Clara, CA, United States | 201-500 | Exact match | 222 contacts → |
“GRL is the world’s leading Engineering Services firm helping engineers solve difficult hardware design and validation challenges in adopting digital interface technologies.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Integra Technologies INCintegra-tech.com HQ: Wichita, KS, United StatesReported employees: 201-500 | Wichita, KS, United States | 201-500 | Exact match | 217 contacts → |
“Our mission: to deliver secure, reliable, state-of-the-art semiconductors and semiconductor services with unwavering integrity.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Nidec SV Probenidecsvprobe.com HQ: Tempe, AZ, United StatesReported employees: 501-1,000 | Tempe, AZ, United States | 501-1,000 | Exact match | 179 contacts → |
“Nidec SV Probe was founded in 1994, and engages in the manufacture, marketing, and service of high performance probe cards and test solutions for the semiconductor industry.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Shellback Semiconductor Technologyshellbacksemi.com HQ: Coopersburg, PA, United StatesReported employees: 201-500 | Coopersburg, PA, United States | 201-500 | Exact match | 147 contacts → |
“For over 400 years, intrepid mariners have embarked on long journeys into uncharted waters.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Micro Control Companymicrocontrol.com HQ: Minneapolis, MN, United StatesReported employees: 201-500 | Minneapolis, MN, United States | 201-500 | Exact match | 136 contacts → |
“Micro Control Company is the global leader in burn-in with test systems, committed to delivering excellence and innovation for over 50 years.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Trio-Tech Internationaltriotech.com HQ: Van Nuys, CA, United StatesReported employees: 501-1,000 | Van Nuys, CA, United States | 501-1,000 | Exact match | 134 contacts → |
“Founded in 1958, Trio-Tech International (NYSE MKT: TRT) is a leading provider of semiconductor testing services, manufacturing solutions, and value-added distribution services.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | ISE Labs ASEiselabs.com HQ: Fremont, CA, United StatesReported employees: 51-200 | Fremont, CA, United States | 51-200 | Exact match | 132 contacts → |
“ISE Labs is a one-stop semiconductor engineering service provider.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | ANORAanoralabs.com HQ: Richardson, TX, United StatesReported employees: 201-500 | Richardson, TX, United States | 201-500 | Exact match | 95 contacts → |
“Delivering world-class electronic test and testability solutions around the globe in semiconductor, systems and functional testing.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Johnstech Internationaljohnstech.com HQ: Minneapolis, MN, United StatesReported employees: 51-200 | Minneapolis, MN, United States | 51-200 | Exact match | 92 contacts → |
“Founded in 1991, Johnstech offers test contactors and related services with the highest electrical and mechanical performance on the market, ensuring global semiconductor…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Harbor Electronicsharbor-electronics.com HQ: Santa Clara, CA, United StatesReported employees: 501-1,000 | Santa Clara, CA, United States | 501-1,000 | Exact match | 64 contacts → |
“Harbor Electronics began fabricating highly specialized printed circuit boards for the ATE industry in 1995.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | DCG Systemsfei.com HQ: Fremont, CA, United StatesReported employees: 201-500 | Fremont, CA, United States | 201-500 | Exact match | 57 contacts → |
“DCG Systems is the leading supplier of equipment that enables localization and characterization of electrical faults in integrated circuits, packages and board assemblies.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Chroma Ate, Inc. USAchromaus.com HQ: Irvine, CA, United StatesReported employees: 51-200 | Irvine, CA, United States | 51-200 | Exact match | 53 contacts → |
“Founded in 1984, Chroma ATE, Inc.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | SMT Corpsmtcorp.com HQ: Sandy Hook, CT, United StatesReported employees: 51-200 | Sandy Hook, CT, United States | 51-200 | Exact match | 51 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 20 | Checksumchecksum.com HQ: Arlington, WA, United StatesReported employees: 11-50 | Arlington, WA, United States | 11-50 | Exact match | 49 contacts → |
“CheckSum has been delivering reliable, cost-effective, and easy-to-use test solutions to OEMs and contract manufacturers since 1987.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | SIX Sigma Microelectronicssixsigmamicro.com HQ: Milpitas, CA, United StatesReported employees: 51-200 | Milpitas, CA, United States | 51-200 | Exact match | 45 contacts → |
“Six Sigma Microelectronics, part of Winslow Automation, Inc, has over 35 years of experience providing high-reliability integrated circuit solutions for military and space…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Classone Equipmentclassoneequipment.com HQ: Decatur, GA, United StatesReported employees: 51-200 | Decatur, GA, United States | 51-200 | Exact match | 42 contacts → |
“ClassOne Equipment is a unique company that has been serving the global semiconductor industry since 2002, and today, we offer customers a very broad selection of new and…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Celadon Systems, INCceladonsystems.com HQ: Burnsville, MN, United StatesReported employees: 11-50 | Burnsville, MN, United States | 11-50 | Exact match | 38 contacts → |
“Celadon Systems designs and manufactures ultra high performance probe cards for the semiconductor industry.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Oneida Research Services, INCorslabs.com HQ: Whitesboro, NY, United StatesReported employees: 51-200 | Whitesboro, NY, United States | 51-200 | Exact match | 38 contacts → |
“Oneida Research Services® (ORS) offers specialized laboratory testing services to support the microelectronics, telecommunications, aerospace, automotive, medical, and defense…” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Ironwood Electronicsironwoodelectronics.com HQ: Eagan, MN, United StatesReported employees: 51-200 | Eagan, MN, United States | 51-200 | Exact match | 37 contacts → |
“Ironwood Electronics offers high performance test sockets and adapters for both engineering validation and production use.” Recorded description excerpt · September 17, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 228 company matches
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Semiconductor testing services: dataset insights
September 17, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
228 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 228 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 17, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for semiconductor testing services?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many semiconductor testing services did RevenueBase find based in the United States?
The saved snapshot records 228 matching company records, 26,260 tracked contacts and 8,277 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 17, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Semiconductor testing services by geography
Cite this list
RevenueBase Data Team. Top 25 semiconductor testing services based in the United States. Snapshot: September 17, 2026. https://revenuebase.ai/companies/semiconductor-testing-services/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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