Company lists · Data refreshed September 2026
Top 25 Quantum photonics companies worldwide
RevenueBase identified 656 quantum photonics companies worldwide as of September 2026 and tracks 18,931 professional contacts across them, including 7,737 with verified work emails. The United States is the largest market and Singapore the largest hub.
This list covers quantum photonics 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 21, 2026. Country and city lists for quantum photonics 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 quantum photonics companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,257 contacts → | ||||
Partial evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 2,117 contacts → | ||||
Indirect evidence “Excelitas is the leading provider of advanced, life-enriching technologies that make a difference, serving global market leaders in the life sciences, advanced industrial…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 378 contacts → | ||||
Indirect evidence “Technology has the power to transform our lives.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 359 contacts → | ||||
Partial evidence “Quantum computing will be a world-changing technology with the potential to unlock powerful advances in medicine, energy, finance and beyond.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 292 contacts → | ||||
Strong evidence “Xanadu Quantum Technologies Limited is a Canadian photonic quantum computing company with the mission to build quantum computers that are useful and available to people everywhere.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 289 contacts → | ||||
Indirect evidence “TOPTICA has been developing and producing high-end laser systems for more than 25 years.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 222 contacts → | ||||
Partial evidence “SMART Photonics aims to improve people’s lives and create a better world with the help of integrated photonics.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 211 contacts → | ||||
Partial evidence “Infleqtion, Inc.(NYSE: INFQ) is a global leader in quantum technology, delivering neutral atom solutions for quantum computing, networking, sensing, and security.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 207 contacts → | ||||
Partial evidence “The Fraunhofer Institute for Applied Optics and Precision Engineering IOF in Jena, Germany, conducts applied research in the field of photonics and develops innovative optical…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 168 contacts → | ||||
Partial evidence “Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik (FBH) is an application-oriented research institute in the fields of high-frequency electronics, photonics…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 166 contacts → | ||||
Partial evidence “PHOTONICS FOR LIFE Photonics, the key light-based technology of the 21st century, is at the center of the Leibniz Institute of Photonic Technology’s (IPHT) research activities.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 162 contacts → | ||||
Partial evidence “Founded in 2013, Cailabs designs, manufactures, and develops innovative photonic solutions for the space, industry (laser machining), telecommunications, and defense sectors.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 159 contacts → | ||||
Strong evidence “Based in beautiful Vancouver, Canada, Photonic is delivering scalable, distributed, and fault-tolerant quantum computing and networking technologies.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 149 contacts → | ||||
Partial evidence “Quandela specialises in the production of photon-based quantum computing and cloud solutions, enabling organisations to achieve their quantum transformation.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 144 contacts → | ||||
Partial evidence “Sustainable AI through Intelligent Manufacturing ficonTEC is a global leader in automated assembly and test systems for integrated photonic devices, enabling the industrialization…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 137 contacts → | ||||
Partial evidence “DRS Daylight Solutions, a line of business under Leonardo DRS, provides photonics solutions to researchers, industry allies, and system manufacturers.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 121 contacts → | ||||
Partial evidence “At ID Quantique, an IonQ company, we harness light to develop and industrialize advanced quantum products and technologies for organizations to ensure long-term protection of data…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 109 contacts → | ||||
Partial evidence “Sivers Semiconductors is a critical enabler of a greener data economy with energy-efficient photonics & wireless solutions.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 108 contacts → | ||||
Partial evidence “Precision in Photonics.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 96 contacts → | ||||
Partial evidence “DenseLight services the global photonics & Data Centre markets, using its patented Integrated Photonics technology to deliver cost competitive solutions to Sensing and Datacom…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 95 contacts → | ||||
Partial evidence “InnoLight was founded in 2008, is now a world leader in development of silicon photonics and provide a wide range of high-speed optical solutions for optical communication…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 93 contacts → | ||||
Partial evidence “Where Light Meets Digital - EFFECT Photonics is a highly vertically integrated, independent photonic optical systems company addressing the need for high-performance, affordable…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 92 contacts → | ||||
Partial evidence “At indie (Nasdaq: INDI), we empower our customers with best-in-class semiconductor, photonics, software, and system-level technologies designed to drive their success.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 92 contacts → | ||||
Partial evidence “Syntec Optics (Nasdaq: OPTX) is an American optics and photonics manufacturing company located in Rochester, NY.” Source: RevenueBase Database · checked Sep 21, 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: quantum photonics 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 quantum photonics companies.
- Partial evidence
- Its own public description names part of quantum photonics companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name quantum photonics 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 656 quantum photonics companies worldwide
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Quantum photonics companies worldwide at a glance
As of Sep 21, 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 quantum photonics 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 quantum photonics companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “quantum photonics 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 quantum photonics 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 quantum photonics 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, 7,737 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 21, 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.
Quantum photonics companies by location
5 lists · largest firstEvery Quantum photonics companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
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 quantum photonics 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 quantum photonics companies are there worldwide?
RevenueBase identified 656 quantum photonics 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?
Lumentum, headquartered in San Jose, tops this list with the largest team on record.
Which country has the most quantum photonics companies?
The United States leads with 148 companies, followed by Germany (56) and the United Kingdom (37). Every quantum photonics companies list by country and city is linked on this page.
Which city has the most quantum photonics companies?
Singapore leads with 14 headquartered companies, followed by Berlin (9) and Cambridge (6).
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 7,737 verified decision-maker contacts tracked across these 656 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 21, 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.