Company lists · Data refreshed September 2026
Top 25 Optical test and measurement companies worldwide
RevenueBase identified 1,822 company matches for optical test and measurement companies worldwide as of September 2026 and tracks 72,891 professional contacts across them, including 23,748 with verified work emails. China is the largest market and Shenzhen the largest hub.
This list covers company matches for optical test and measurement 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 September 20, 2026. Country and city lists for optical test and measurement 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.
The 25 largest optical test and measurement companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 11,668 contacts → | ||||
Exact match “Keysight empowers innovators to explore, design, and bring world-changing technologies to life.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 2 | 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 20, 2026 · View company records in RevenueBase | |||||
| 3 | 6,840 contacts → | ||||
Exact match “ZEISS is an internationally leading technology enterprise operating in the fields of optics and optoelectronics.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 4 | 4,999 contacts → | ||||
Exact match “GAO Tek is a member of GAO Group of Companies, headquartered in New York City, USA & Toronto, Canada with a strong global presence.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 5 | 3,355 contacts → | ||||
Exact match “We design and manufacture test and measurement solutions to break through the walls of complexity and accelerate global innovation.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 6 | 2,316 contacts → | ||||
Exact match “For over a century, Nikon has strived to unlock the power of light to provide new value to society by developing a variety of products and services based on applied optics and…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 7 | 2,257 contacts → | ||||
Exact match “Lumentum (NASDAQ: LITE) is a global leader in optical and photonic technologies that power the networks and infrastructure behind AI, cloud computing, and next-generation…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 8 | 2,117 contacts → | ||||
Exact match “Excelitas is the leading provider of advanced, life-enriching technologies that make a difference, serving global market leaders in the life sciences, advanced industrial…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 9 | 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 20, 2026 · View company records in RevenueBase | |||||
| 10 | 1,348 contacts → | ||||
Exact match “Thorlabs is a leading designer and manufacturer of photonics equipment for research, manufacturing, and biomedical applications.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 11 | 592 contacts → | ||||
Exact match “SEMILAB provides state-of-the-art metrology solutions for semiconductor device manufacturers, both in-line and R&D segments, and is a strategic metrology supplier of leading wafer…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 12 | 592 contacts → | ||||
Exact match “Edmund Optics has been a leading supplier of precision optics and optical components since 1942, designing and manufacturing a wide array of multi-element optical lenses, lens…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 13 | 559 contacts → | ||||
Exact match “In February 2025, Qioptiq was acquired by Teledyne Technologies Inc.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 14 | 498 contacts → | ||||
Exact match “Founded in 1984, Chroma ATE Inc.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 15 | 451 contacts → | ||||
Exact match “Zygo is the global leader in the design and manufacture of advanced optical metrology systems and ultra-precise optical components and assemblies.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 16 | 403 contacts → | ||||
Exact match “Meopta is a trusted global partner in high-precision optical, opto-mechanical and opto-electronic solutions, serving some of the world's most demanding industries.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 17 | 395 contacts → | ||||
Exact match “Yangtze Optical Fibre and Cable Joint Stock Limited Company (also known as 'YOFC') is established in Wuhan, Hubei Province in May 1988.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 18 | 391 contacts → | ||||
Exact match “G&H is a world leader in optical designing, testing and manufacturing.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 19 | 333 contacts → | ||||
Exact match “Luna Innovations Incorporated is a leader in optical technology, committed to serving its customers with unique capabilities in high-performance, fiber-optic-based sensing…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 20 | 261 contacts → | ||||
Exact match “America's largest optics manufacturer, Optimax is on the cutting edge of future applications in space, high-energy lasers, and semiconductor.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 21 | 243 contacts → | ||||
Exact match “Polytec has been bringing light into the darkness for more than 50 years.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 22 | 234 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 23 | 197 contacts → | ||||
Exact match “TRIOPTICS – See the Difference Whenever optical performance plays a decisive role - our solutions make you see the difference.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 24 | 195 contacts → | ||||
Exact match “T&M Solution Provider, No 1 in Telecom Services, Rental and Sales of T&M Equipments - FLEXIRENTAL programme.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 25 | 191 contacts → | ||||
Exact match “OZ Optics Limited is a leading worldwide supplier of fiber optic products for existing and next-generation optical networks.” Recorded in the RevenueBase company graph · Sep 20, 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 “optical test and measurement 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 1,822 optical test and measurement companies worldwide
See the full list, filter by size, metro and specialty, and access 23,748 tracked professional contacts with verified work emails. Direct dials are available where recorded.
Free signup · no credit card
Optical test and measurement companies worldwide at a glance
As of Sep 20, 2026Companies by employee count
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 optical test and measurement companies are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “optical test and measurement 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 23,748 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 20, 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.
Optical test and measurement companies by location
11 lists · largest firstEvery Optical test and measurement companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Optical test and measurement companies based in China367
- Optical test and measurement companies based in the United States320
- Optical test and measurement companies based in Germany167
- Optical test and measurement companies based in India84
- Optical test and measurement companies based in the United Kingdom71
- Optical test and measurement companies based in France65
- Optical test and measurement companies based in Japan61
- Optical test and measurement companies based in Brazil32
- Optical test and measurement companies based in Italy30
- Optical test and measurement companies based in Canada28
- Optical test and measurement companies based in the Netherlands26
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 “optical test and measurement companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many optical test and measurement companies are there worldwide?
RevenueBase identified 1,822 company matches for optical test and measurement companies worldwide 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?
Keysight Technologies tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most optical test and measurement companies?
China leads with 367 companies, followed by the United States (320) and Germany (167). Every optical test and measurement companies list by country and city is linked on this page.
Which city has the most optical test and measurement companies?
Shenzhen leads with 57 company records, followed by Fuzhou (16) and Wuhan (16).
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 23,748 professional contacts with verified work emails tracked across these 1,822 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 20, 2026.
Ready to reach these companies? Verified emails and direct dials for all 1,822 optical test and measurement 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.
More company lists
Company intelligence · public preview
Top 25 optical test and measurement companies worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 1,822 matching company records for optical test and measurement companies worldwide, with 72,891 tracked contacts and 23,748 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 20, 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 optical test and measurement companies worldwide
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 |  Keysight Technologieskeysight.comHQ: Santa Rosa, CA, United StatesReported employees: 10001+ | Santa Rosa, CA, United States | 10001+ | Exact match | 11,668 contacts → |
“Keysight empowers innovators to explore, design, and bring world-changing technologies to life.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  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 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Zeiss Groupzeiss.comHQ: Oberkochen, GermanyReported employees: 10001+ | Oberkochen, Germany | 10001+ | Exact match | 6,840 contacts → |
“ZEISS is an internationally leading technology enterprise operating in the fields of optics and optoelectronics.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Gaotek INCgaotek.com HQ: New York, NY, United StatesReported employees: Not recorded | New York, NY, United States | Not recorded | Exact match | 4,999 contacts → |
“GAO Tek is a member of GAO Group of Companies, headquartered in New York City, USA & Toronto, Canada with a strong global presence.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Tektronixtek.comHQ: Beaverton, OR, United StatesReported employees: 1,001-5,000 | Beaverton, OR, United States | 1,001-5,000 | Exact match | 3,355 contacts → |
“We design and manufacture test and measurement solutions to break through the walls of complexity and accelerate global innovation.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | NIKONnikon.com HQ: JapanReported employees: 10001+ | Japan | 10001+ | Exact match | 2,316 contacts → |
“For over a century, Nikon has strived to unlock the power of light to provide new value to society by developing a variety of products and services based on applied optics and…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Lumentumlumentum.comHQ: San Jose, CA, United StatesReported employees: 10001+ | San Jose, CA, United States | 10001+ | Exact match | 2,257 contacts → |
“Lumentum (NASDAQ: LITE) is a global leader in optical and photonic technologies that power the networks and infrastructure behind AI, cloud computing, and next-generation…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Excelitas Technologies Corpexcelitas.comHQ: Pittsburgh, PA, United StatesReported employees: 5,001-10,000 | Pittsburgh, PA, United States | 5,001-10,000 | Exact match | 2,117 contacts → |
“Excelitas is the leading provider of advanced, life-enriching technologies that make a difference, serving global market leaders in the life sciences, advanced industrial…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | 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 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Thorlabsthorlabs.comHQ: Newton, NJ, United StatesReported employees: 1,001-5,000 | Newton, NJ, United States | 1,001-5,000 | Exact match | 1,348 contacts → |
“Thorlabs is a leading designer and manufacturer of photonics equipment for research, manufacturing, and biomedical applications.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Semilab ZRTsemilab.com HQ: Budapest, HungaryReported employees: 1,001-5,000 | Budapest, Hungary | 1,001-5,000 | Exact match | 592 contacts → |
“SEMILAB provides state-of-the-art metrology solutions for semiconductor device manufacturers, both in-line and R&D segments, and is a strategic metrology supplier of leading wafer…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Edmund Opticsedmundoptics.comHQ: Barrington, NJ, United StatesReported employees: 1,001-5,000 | Barrington, NJ, United States | 1,001-5,000 | Exact match | 592 contacts → |
“Edmund Optics has been a leading supplier of precision optics and optical components since 1942, designing and manufacturing a wide array of multi-element optical lenses, lens…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Teledyne Qioptiqteledyne-ade.comHQ: St Asaph, United KingdomReported employees: 10001+ | St Asaph, United Kingdom | 10001+ | Exact match | 559 contacts → |
“In February 2025, Qioptiq was acquired by Teledyne Technologies Inc.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Chroma ATE INCchromaate.comHQ: Taoyuan City, TaiwanReported employees: 1,001-5,000 | Taoyuan City, Taiwan | 1,001-5,000 | Exact match | 498 contacts → |
“Founded in 1984, Chroma ATE Inc.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | ZYGOzygo.com HQ: Middlefield, CT, United StatesReported employees: 501-1,000 | Middlefield, CT, United States | 501-1,000 | Exact match | 451 contacts → |
“Zygo is the global leader in the design and manufacture of advanced optical metrology systems and ultra-precise optical components and assemblies.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Meoptameopta.com HQ: Prerov, Czech RepublicReported employees: 1,001-5,000 | Prerov, Czech Republic | 1,001-5,000 | Exact match | 403 contacts → |
“Meopta is a trusted global partner in high-precision optical, opto-mechanical and opto-electronic solutions, serving some of the world's most demanding industries.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  YOFCyofc.comHQ: Wuhan, ChinaReported employees: 1,001-5,000 | Wuhan, China | 1,001-5,000 | Exact match | 395 contacts → |
“Yangtze Optical Fibre and Cable Joint Stock Limited Company (also known as 'YOFC') is established in Wuhan, Hubei Province in May 1988.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  G&h Gooch & Housegogandh.comHQ: Ilminster, United KingdomReported employees: 1,001-5,000 | Ilminster, United Kingdom | 1,001-5,000 | Exact match | 391 contacts → |
“G&H is a world leader in optical designing, testing and manufacturing.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Luna Innovationslunainc.comHQ: Roanoke, VA, United StatesReported employees: 201-500 | Roanoke, VA, United States | 201-500 | Exact match | 333 contacts → |
“Luna Innovations Incorporated is a leader in optical technology, committed to serving its customers with unique capabilities in high-performance, fiber-optic-based sensing…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Optimax Systems, INCoptimaxsi.comHQ: Ontario, NY, United StatesReported employees: 201-500 | Ontario, NY, United States | 201-500 | Exact match | 261 contacts → |
“America's largest optics manufacturer, Optimax is on the cutting edge of future applications in space, high-energy lasers, and semiconductor.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Polytecpolytec.com HQ: Waldbronn, GermanyReported employees: 201-500 | Waldbronn, Germany | 201-500 | Exact match | 243 contacts → |
“Polytec has been bringing light into the darkness for more than 50 years.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  MPI Corporationmpi-corporation.comHQ: Zhubei, TaiwanReported employees: 1,001-5,000 | Zhubei, Taiwan | 1,001-5,000 | Exact match | 234 contacts → |
“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…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Triopticstrioptics.comHQ: Wedel, GermanyReported employees: 201-500 | Wedel, Germany | 201-500 | Exact match | 197 contacts → |
“TRIOPTICS – See the Difference Whenever optical performance plays a decisive role - our solutions make you see the difference.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Toshniwal Enterprises Controls Pvt. LTDtoshniwalcontrols.com HQ: IndiaReported employees: 201-500 | India | 201-500 | Exact match | 195 contacts → |
“T&M Solution Provider, No 1 in Telecom Services, Rental and Sales of T&M Equipments - FLEXIRENTAL programme.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  OZ Optics LTDozoptics.comHQ: Ottawa, ON, CanadaReported employees: 201-500 | Ottawa, ON, Canada | 201-500 | Exact match | 191 contacts → |
“OZ Optics Limited is a leading worldwide supplier of fiber optic products for existing and next-generation optical networks.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,822 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Optical test and measurement companies: dataset insights
September 20, 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
1,810 records in the displayed employee bands.
12 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 across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 1,822 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 20, 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 ↗
Optical test and measurement companies by location
11 lists · largest firstEvery Optical test and measurement companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Optical test and measurement companies based in China367
- Optical test and measurement companies based in the United States320
- Optical test and measurement companies based in Germany167
- Optical test and measurement companies based in India84
- Optical test and measurement companies based in the United Kingdom71
- Optical test and measurement companies based in France65
- Optical test and measurement companies based in Japan61
- Optical test and measurement companies based in Brazil32
- Optical test and measurement companies based in Italy30
- Optical test and measurement companies based in Canada28
- Optical test and measurement companies based in the Netherlands26
Questions about this company list
What does Exact match mean for optical test and measurement companies?
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 optical test and measurement companies did RevenueBase find worldwide?
The saved snapshot records 1,822 matching company records, 72,891 tracked contacts and 23,748 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 20, 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
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 optical test and measurement companies worldwide. Snapshot: September 20, 2026. https://revenuebase.ai/companies/browse/optical-test-and-measurement-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 optical test and measurement companies worldwide
RevenueBase records 1,822 matching company records for optical test and measurement companies worldwide, with 72,891 tracked contacts and 23,748 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 20, 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 optical test and measurement companies worldwide
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 | Keysight Technologieskeysight.com HQ: Santa Rosa, CA, United StatesReported employees: 10001+ | Santa Rosa, CA, United States | 10001+ | Exact match | 11,668 contacts → |
“Keysight empowers innovators to explore, design, and bring world-changing technologies to life.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | 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 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Zeiss Groupzeiss.com HQ: Oberkochen, GermanyReported employees: 10001+ | Oberkochen, Germany | 10001+ | Exact match | 6,840 contacts → |
“ZEISS is an internationally leading technology enterprise operating in the fields of optics and optoelectronics.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Gaotek INCgaotek.com HQ: New York, NY, United StatesReported employees: Not recorded | New York, NY, United States | Not recorded | Exact match | 4,999 contacts → |
“GAO Tek is a member of GAO Group of Companies, headquartered in New York City, USA & Toronto, Canada with a strong global presence.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Tektronixtek.com HQ: Beaverton, OR, United StatesReported employees: 1,001-5,000 | Beaverton, OR, United States | 1,001-5,000 | Exact match | 3,355 contacts → |
“We design and manufacture test and measurement solutions to break through the walls of complexity and accelerate global innovation.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | NIKONnikon.com HQ: JapanReported employees: 10001+ | Japan | 10001+ | Exact match | 2,316 contacts → |
“For over a century, Nikon has strived to unlock the power of light to provide new value to society by developing a variety of products and services based on applied optics and…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Lumentumlumentum.com HQ: San Jose, CA, United StatesReported employees: 10001+ | San Jose, CA, United States | 10001+ | Exact match | 2,257 contacts → |
“Lumentum (NASDAQ: LITE) is a global leader in optical and photonic technologies that power the networks and infrastructure behind AI, cloud computing, and next-generation…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Excelitas Technologies Corpexcelitas.com HQ: Pittsburgh, PA, United StatesReported employees: 5,001-10,000 | Pittsburgh, PA, United States | 5,001-10,000 | Exact match | 2,117 contacts → |
“Excelitas is the leading provider of advanced, life-enriching technologies that make a difference, serving global market leaders in the life sciences, advanced industrial…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | 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 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Thorlabsthorlabs.com HQ: Newton, NJ, United StatesReported employees: 1,001-5,000 | Newton, NJ, United States | 1,001-5,000 | Exact match | 1,348 contacts → |
“Thorlabs is a leading designer and manufacturer of photonics equipment for research, manufacturing, and biomedical applications.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Semilab ZRTsemilab.com HQ: Budapest, HungaryReported employees: 1,001-5,000 | Budapest, Hungary | 1,001-5,000 | Exact match | 592 contacts → |
“SEMILAB provides state-of-the-art metrology solutions for semiconductor device manufacturers, both in-line and R&D segments, and is a strategic metrology supplier of leading wafer…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Edmund Opticsedmundoptics.com HQ: Barrington, NJ, United StatesReported employees: 1,001-5,000 | Barrington, NJ, United States | 1,001-5,000 | Exact match | 592 contacts → |
“Edmund Optics has been a leading supplier of precision optics and optical components since 1942, designing and manufacturing a wide array of multi-element optical lenses, lens…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Teledyne Qioptiqteledyne-ade.com HQ: St Asaph, United KingdomReported employees: 10001+ | St Asaph, United Kingdom | 10001+ | Exact match | 559 contacts → |
“In February 2025, Qioptiq was acquired by Teledyne Technologies Inc.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Chroma ATE INCchromaate.com HQ: Taoyuan City, TaiwanReported employees: 1,001-5,000 | Taoyuan City, Taiwan | 1,001-5,000 | Exact match | 498 contacts → |
“Founded in 1984, Chroma ATE Inc.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | ZYGOzygo.com HQ: Middlefield, CT, United StatesReported employees: 501-1,000 | Middlefield, CT, United States | 501-1,000 | Exact match | 451 contacts → |
“Zygo is the global leader in the design and manufacture of advanced optical metrology systems and ultra-precise optical components and assemblies.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Meoptameopta.com HQ: Prerov, Czech RepublicReported employees: 1,001-5,000 | Prerov, Czech Republic | 1,001-5,000 | Exact match | 403 contacts → |
“Meopta is a trusted global partner in high-precision optical, opto-mechanical and opto-electronic solutions, serving some of the world's most demanding industries.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | YOFCyofc.com HQ: Wuhan, ChinaReported employees: 1,001-5,000 | Wuhan, China | 1,001-5,000 | Exact match | 395 contacts → |
“Yangtze Optical Fibre and Cable Joint Stock Limited Company (also known as 'YOFC') is established in Wuhan, Hubei Province in May 1988.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | G&h Gooch & Housegogandh.com HQ: Ilminster, United KingdomReported employees: 1,001-5,000 | Ilminster, United Kingdom | 1,001-5,000 | Exact match | 391 contacts → |
“G&H is a world leader in optical designing, testing and manufacturing.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Luna Innovationslunainc.com HQ: Roanoke, VA, United StatesReported employees: 201-500 | Roanoke, VA, United States | 201-500 | Exact match | 333 contacts → |
“Luna Innovations Incorporated is a leader in optical technology, committed to serving its customers with unique capabilities in high-performance, fiber-optic-based sensing…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Optimax Systems, INCoptimaxsi.com HQ: Ontario, NY, United StatesReported employees: 201-500 | Ontario, NY, United States | 201-500 | Exact match | 261 contacts → |
“America's largest optics manufacturer, Optimax is on the cutting edge of future applications in space, high-energy lasers, and semiconductor.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Polytecpolytec.com HQ: Waldbronn, GermanyReported employees: 201-500 | Waldbronn, Germany | 201-500 | Exact match | 243 contacts → |
“Polytec has been bringing light into the darkness for more than 50 years.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | MPI Corporationmpi-corporation.com HQ: Zhubei, TaiwanReported employees: 1,001-5,000 | Zhubei, Taiwan | 1,001-5,000 | Exact match | 234 contacts → |
“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…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Triopticstrioptics.com HQ: Wedel, GermanyReported employees: 201-500 | Wedel, Germany | 201-500 | Exact match | 197 contacts → |
“TRIOPTICS – See the Difference Whenever optical performance plays a decisive role - our solutions make you see the difference.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Toshniwal Enterprises Controls Pvt. LTDtoshniwalcontrols.com HQ: IndiaReported employees: 201-500 | India | 201-500 | Exact match | 195 contacts → |
“T&M Solution Provider, No 1 in Telecom Services, Rental and Sales of T&M Equipments - FLEXIRENTAL programme.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | OZ Optics LTDozoptics.com HQ: Ottawa, ON, CanadaReported employees: 201-500 | Ottawa, ON, Canada | 201-500 | Exact match | 191 contacts → |
“OZ Optics Limited is a leading worldwide supplier of fiber optic products for existing and next-generation optical networks.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,822 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Optical test and measurement companies: dataset insights
September 20, 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
1,810 records in the displayed employee bands.
12 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 across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 1,822 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 20, 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 ↗
Optical test and measurement companies by location
11 lists · largest firstEvery Optical test and measurement companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Optical test and measurement companies based in China367
- Optical test and measurement companies based in the United States320
- Optical test and measurement companies based in Germany167
- Optical test and measurement companies based in India84
- Optical test and measurement companies based in the United Kingdom71
- Optical test and measurement companies based in France65
- Optical test and measurement companies based in Japan61
- Optical test and measurement companies based in Brazil32
- Optical test and measurement companies based in Italy30
- Optical test and measurement companies based in Canada28
- Optical test and measurement companies based in the Netherlands26
Questions about this company list
What does Exact match mean for optical test and measurement companies?
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 optical test and measurement companies did RevenueBase find worldwide?
The saved snapshot records 1,822 matching company records, 72,891 tracked contacts and 23,748 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 20, 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
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 optical test and measurement companies worldwide. Snapshot: September 20, 2026. https://revenuebase.ai/companies/browse/optical-test-and-measurement-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗