Company lists · Data refreshed September 2026
Optical glass manufacturers: the worldwide list
RevenueBase identified 1,300 optical glass manufacturers across the 11 countries with a published list, as of September 2026, and tracks 63,118 professional contacts across them, including 13,951 with verified work emails and 0 with mobile numbers. The United States is the largest market and Sao Paulo the largest hub.
This is the worldwide list of optical glass manufacturers: the 11 country lists RevenueBase publishes for the category, summed and ranked as one. The company count is that sum, not a census of every company on earth; a country with no published list is not counted. 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 17, 2026.
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 glass manufacturers across the 11 countries with a published list
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 17,702 contacts → | ||||
Indirect evidence “Corning is one of the world's leading innovators in materials science, with a 170+ year track record of life-changing inventions.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 2 | 6,838 contacts → | ||||
Indirect evidence “This is a story of progress.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 3 | 6,074 contacts → | ||||
Strong evidence “The world's leading ophthalmic optics company, Essilor designs, manufactures and markets a wide range of lenses to improve and protect eyesight.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 4 | 3,633 contacts → | ||||
Indirect evidence “Guardian Industries, a global company headquartered in Auburn Hills, Michigan, operates facilities throughout North and South America, Europe, Africa, the Middle East, and Asia.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,805 contacts → | ||||
Partial evidence “Pilkington United Kingdom Limited, part of the NSG Group, is one of the global leaders in glass and glazing technology.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,227 contacts → | ||||
Strong evidence “Since its establishment in 1941 as Japan’s first specialty manufacturer of optical glass, HOYA has diversified into new business areas that exploit the potential of advanced…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 7 | 1,040 contacts → | ||||
Indirect evidence “A Cebrace é fruto de uma joint-venture entre dois dos maiores grupos produtores de vidro plano do mundo: a NSG/Pilkington e Saint-Gobain.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 8 | 800 contacts → | ||||
Strong evidence “Gold Plus Glass Industry Limited is a leading manufacturer and supplier of high-quality float glasses.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 9 | 748 contacts → | ||||
Partial evidence “At Carlex, we know serving a car owner ultimately means better serving car manufacturers and designers and those who service and repair cars.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 10 | 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 17, 2026Thanks. The Data Team will review it. | |||||
| 11 | 487 contacts → | ||||
Strong evidence “AGC Glass is one of the largest manufacturers of glass and glass-related products in North America, offering a broad range of glazing solutions for commercial, residential…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 12 | 451 contacts → | ||||
Strong 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 17, 2026Thanks. The Data Team will review it. | |||||
| 13 | 447 contacts → | ||||
Partial evidence “The pioneer in the industrial glass production-industry, Yorglass, is carrying out its activities with its business partners worldwide, with the power of its knowledge and…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 14 | 391 contacts → | ||||
Partial evidence “G&H is a world leader in optical designing, testing and manufacturing.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 15 | 266 contacts → | ||||
Partial evidence “At Nippon Electric Glass, our corporate philosophy is a reflection of our founding mission, a statement of our devotion to creating products infused with the very best of human…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 16 | 262 contacts → | ||||
Indirect evidence “Indo es una multinacional española dedicada a la fabricación y comercialización de lentes oftálmicas y bienes de equipo para las ópticas y los oftalmólogos.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 17 | 261 contacts → | ||||
Strong 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 17, 2026Thanks. The Data Team will review it. | |||||
| 18 | 214 contacts → | ||||
Partial evidence “TPRS Glass is a trusted leader in the glass industry with over three decades of expertise, delivering innovative and standardized glass solutions across diverse sectors such as…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 19 | 211 contacts → | ||||
Strong 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 17, 2026Thanks. The Data Team will review it. | |||||
| 20 | 210 contacts → | ||||
Indirect evidence “Novacel Industrie des verres correcteurs et des équipements d'optique ophtalmique 100% Origine France” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 21 | 209 contacts → | ||||
Partial evidence “We are Tosoh Quartz, Inc.(TQI), the world's leading manufacturer of quartz glassware for the semiconductor industry.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 22 | 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 17, 2026Thanks. The Data Team will review it. | |||||
| 23 | 172 contacts → | ||||
Partial evidence “Custom Glass Solutions was formed to meet the glass needs of diverse industries.” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 24 | 171 contacts → | ||||
Partial evidence “With worldwide technology in special glass processing, Grupo Vidroforte is a supplier of automotive (assembly and spare parts), civil construction (tempered, laminated and…” Source: RevenueBase Database · checked Sep 17, 2026Thanks. The Data Team will review it. | |||||
| 25 | 170 contacts → | ||||
Strong 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 17, 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 glass manufacturers. 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 glass manufacturers.
- Partial evidence
- Its own public description names part of optical glass manufacturers, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name optical glass manufacturers. 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 1,300 optical glass manufacturers across the 11 countries with a published list
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Optical glass manufacturers worldwide at a glance
As of Sep 17, 2026Companies by employee count
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 glass manufacturers, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- Coverage
- This worldwide list is the sum of the 11 country lists RevenueBase publishes for optical glass manufacturers, largest first: the United States, Brazil, India, Germany, Italy, Japan, the United Kingdom, Türkiye, France, Spain and 1 more. Its company and contact totals add up those lists, so they understate the true worldwide figures: a country with no published list is not counted. The ranked table is exact across the countries covered, the largest companies of every country list ranked together with duplicates removed.
- What qualifies
- Companies worldwide whose own description of what they do matches “optical glass manufacturers”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names optical glass manufacturers), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among optical glass manufacturers, and records with no verified work email.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 13,951 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- The country lists behind this page were pulled from the company graph on September 17, 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 glass manufacturers by location
11 lists · largest firstEvery Optical glass manufacturers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date; the worldwide figures above are the sum of the 11 country lists.
Countries
- Optical glass manufacturers based in the United States312
- Optical glass manufacturers based in Brazil187
- Optical glass manufacturers based in India184
- Optical glass manufacturers based in Germany180
- Optical glass manufacturers based in Italy147
- Optical glass manufacturers based in Japan64
- Optical glass manufacturers based in the United Kingdom64
- Optical glass manufacturers based in Türkiye59
- Optical glass manufacturers based in France46
- Optical glass manufacturers based in Spain31
- Optical glass manufacturers based in the Netherlands26
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 glass manufacturers, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many optical glass manufacturers are there worldwide?
RevenueBase identified 1,300 optical glass manufacturers across the 11 countries with a published list, as of September 2026, matched on each company's own description of what it does rather than its industry code. The figure is the sum of those country lists, not a census of every company worldwide.
What is the largest company on this list?
Corning Incorporated, headquartered in Corning, tops this list with the largest team on record.
Which country has the most optical glass manufacturers?
The United States leads with 312 companies, followed by Brazil (187) and India (184). Every country with a published optical glass manufacturers list is linked on this page.
Which city has the most optical glass manufacturers?
Sao Paulo leads with 26 headquartered companies, followed by Istanbul (19) and Rio De Janeiro (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 13,951 verified decision-maker contacts tracked across these 1,300 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. The country lists behind this page were pulled from the company graph on September 17, 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.