Company lists · Data refreshed September 2026
Top 25 Optical testing equipment companies worldwide
RevenueBase identified 1,692 optical testing equipment companies worldwide as of September 2026 and tracks 39,896 professional contacts across them, including 10,836 with verified work emails. The United States is the largest market and Shenzhen the largest hub.
This list covers optical testing equipment companies worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 2026. Country and city lists for optical testing equipment companies follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest optical testing equipment companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 6,840 contacts → | ||||
Partial evidence “ZEISS is an internationally leading technology enterprise operating in the fields of optics and optoelectronics.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 4,999 contacts → | ||||
Indirect evidence “GAO Tek is a member of GAO Group of Companies, headquartered in New York City, USA & Toronto, Canada with a strong global presence.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 2,316 contacts → | ||||
Partial evidence “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…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,348 contacts → | ||||
Partial evidence “Thorlabs is a leading designer and manufacturer of photonics equipment for research, manufacturing, and biomedical applications.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 592 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 592 contacts → | ||||
Partial evidence “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…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 586 contacts → | ||||
Indirect evidence “Lumentum has acquired Oclaro.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 498 contacts → | ||||
Indirect evidence “Founded in 1984, Chroma ATE Inc.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 451 contacts → | ||||
Partial evidence “Zygo is the global leader in the design and manufacture of advanced optical metrology systems and ultra-precise optical components and assemblies.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 403 contacts → | ||||
Partial evidence “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.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 391 contacts → | ||||
Strong evidence “G&H is a world leader in optical designing, testing and manufacturing.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 333 contacts → | ||||
Partial evidence “Luna Innovations Incorporated is a leader in optical technology, committed to serving its customers with unique capabilities in high-performance, fiber-optic-based sensing…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 261 contacts → | ||||
Partial evidence “America's largest optics manufacturer, Optimax is on the cutting edge of future applications in space, high-energy lasers, and semiconductor.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 256 contacts → | ||||
Indirect evidence “LASER IN OUR DNA Quanta System S.p.A produces lasers and laser systems for a wide range of scientific, medical and industrial applications.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 243 contacts → | ||||
Indirect evidence “Polytec has been bringing light into the darkness for more than 50 years.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 234 contacts → | ||||
Indirect evidence “Founded in 1995 and headquartered in Hsinchu, Taiwan, MPI Corporation is a global technology leader in test and measurement solutions spanning the full integrated-circuit…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 214 contacts → | ||||
Strong evidence “AMOS has been designing and manufacturing high-precision optical and mechanical equipment for 40 years.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 211 contacts → | ||||
Partial evidence “SCHNEIDER is one of the world’s leading manufacturers for the development and production of machines in the fields of ophthalmics, precision optics and ultra-precision optics.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 197 contacts → | ||||
Partial evidence “TRIOPTICS – See the Difference Whenever optical performance plays a decisive role - our solutions make you see the difference.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 191 contacts → | ||||
Partial evidence “OZ Optics Limited is a leading worldwide supplier of fiber optic products for existing and next-generation optical networks.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 190 contacts → | ||||
Indirect evidence “Ophir is a brand within the MKS Photonics Solutions Division.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 177 contacts → | ||||
Partial evidence “SwissOptic AG is your partner of choice for the entire process chain of OEM optics, from concept to volume production.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 170 contacts → | ||||
Partial evidence “Rochester Precision Optics (RPO) is a world-class vertically-integrated manufacturer of precision optical product solutions headquartered in the Greater Rochester, NY area.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 163 contacts → | ||||
Partial evidence “Ocean Optics pioneered miniature spectrometers and delivers spectral solutions to researchers, OEMs and industrial customers, also designs and builds industrial-grade photonics…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 147 contacts → | ||||
Partial evidence “OptoTech is not just a company name, but a synonym for innovation and technological progress in the optical industry.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: optical testing equipment companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names optical testing equipment companies.
- Partial evidence
- Its own public description names part of optical testing equipment companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name optical testing equipment companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 1,692 optical testing equipment companies worldwide
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Optical testing equipment 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
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among optical testing equipment companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for optical testing equipment companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “optical testing equipment companies”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names optical testing equipment companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among optical testing equipment companies, and records with no verified work email.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 10,836 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 20, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Optical testing equipment companies by location
9 lists · largest firstEvery Optical testing equipment companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Optical testing equipment companies based in the United States318
- Optical testing equipment companies based in Germany139
- Optical testing equipment companies based in India76
- Optical testing equipment companies based in the United Kingdom67
- Optical testing equipment companies based in France62
- Optical testing equipment companies based in Japan53
- Optical testing equipment companies based in Italy46
- Optical testing equipment companies based in Brazil28
- Optical testing equipment companies based in Canada26
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names optical testing equipment companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many optical testing equipment companies are there worldwide?
RevenueBase identified 1,692 optical testing equipment companies worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Zeiss Group, headquartered in Oberkochen, tops this list with the largest team on record.
Which country has the most optical testing equipment companies?
The United States leads with 318 companies, followed by Germany (139) and India (76). Every optical testing equipment companies list by country and city is linked on this page.
Which city has the most optical testing equipment companies?
Shenzhen leads with 43 headquartered companies, followed by Fuzhou (16) and Changchun (14).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 10,836 verified decision-maker contacts tracked across these 1,692 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.