Company lists · Data refreshed September 2026
Top 25 Quantum research organizations worldwide
RevenueBase identified 2,351 quantum research organizations worldwide as of September 2026 and tracks 58,605 professional contacts across them, including 14,427 with verified work emails. The United States is the largest market and London the largest hub.
This list covers quantum research organizations 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 research organizations 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 research organizations worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,172 contacts → | ||||
Partial evidence “Bull is a global leader in high-performance computing, artificial intelligence and quantum innovation with the ambition to shape a more responsible digital world through…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,841 contacts → | ||||
Partial evidence “The National Institute for Nuclear Physics (INFN) is the Italian research agency dedicated to the study of the fundamental constituents of matter and the laws that govern them…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,616 contacts → | ||||
Indirect evidence “Throughout our 100-year history, Nokia Bell Labs has overcome some of the world’s biggest scientific challenges by bringing together the brightest minds in mathematics, physics…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,297 contacts → | ||||
Indirect evidence “TIFR is a National Centre of the Government of India, under the umbrella of the Department of Atomic Energy, as well as a deemed University awarding degrees for master's and…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,196 contacts → | ||||
Indirect evidence “The future doesn’t happen by chance, it’s something we work hard to build.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 874 contacts → | ||||
Partial evidence “Centrum Wiskunde & Informatica (CWI) is the Dutch national research institute for mathematics and computer science.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 848 contacts → | ||||
Indirect evidence “The Thomas Jefferson National Accelerator Facility, located in Newport News, Virginia, is operated by SURATech, LLC, for the U.S.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 672 contacts → | ||||
Partial evidence “Founded in 1967, Riverside Research is a nonprofit organization chartered to advance scientific research for the benefit of the US government and in the public interest.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 598 contacts → | ||||
Partial evidence “Science led and enterprise driven, Quantinuum unites Cambridge Quantum’s best-in-class software with Honeywell Quantum Solutions’ high-performing trapped-ion hardware.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 574 contacts → | ||||
Partial evidence “IonQ, Inc.[NYSE: IONQ] is the world’s leading quantum platform and foundry - delivering integrated quantum solutions across computing, networking, sensing, and security.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 509 contacts → | ||||
Indirect evidence “SISSA (Scuola Internazionale Superiore di Studi Avanzati) is a university institution and a scientific center of excellence within the national and international academic scene.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 416 contacts → | ||||
Partial evidence “Institute of Physics is one of the Czech Republic's most successful research institutions.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 408 contacts → | ||||
Partial evidence “ICFO is a research center of excellence with research lines that encompass diverse areas in which photonics plays a decisive role.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 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. | |||||
| 15 | 350 contacts → | ||||
Partial evidence “IQM is pioneering the future of superconducting quantum computers.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 347 contacts → | ||||
Partial evidence “The High Energy Accelerator Research Organization (KEK) is a world-leading research institute with campuses in Tsukuba city and Tokai village, Japan, dedicated to advancing…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 301 contacts → | ||||
Partial evidence “The Center for Physical Sciences and Technology (FTMC) is the largest scientific research institution in Lithuania, conducting unique fundamental research and technological…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 296 contacts → | ||||
Indirect evidence “Mit über 480 Mitarbeiterinnen und Mitarbeitern und mehr als 19 500 m² Nettogrundfläche zählt das Fraunhofer-Institut für Lasertechnik ILT weltweit zu den bedeutendsten…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 294 contacts → | ||||
Partial evidence “We build Programmable Quantum Simulators and Quantum Computers made of 2D and 3D Atomic Arrays.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 292 contacts → | ||||
Partial 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. | |||||
| 21 | 264 contacts → | ||||
Indirect evidence “Nikhef is het Nationaal instituut voor subatomaire fysica.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 259 contacts → | ||||
Indirect evidence “Perimeter Institute offers a dynamic work culture fueled by ideas and collaboration.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 252 contacts → | ||||
Partial evidence “Quantum Machines envisions a new technological age.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 251 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 242 contacts → | ||||
Partial evidence “The Institute for Research in Fundamental Sciences (IPM) affiliated with the Ministry of Science, Research, and Technology, was founded in 1989 under the name of Institute for…” 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 research organizations. 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 research organizations.
- Partial evidence
- Its own public description names part of quantum research organizations, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name quantum research organizations. 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 2,351 quantum research organizations worldwide
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Quantum research organizations 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 research organizations, 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 research organizations are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “quantum research organizations”. 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 research organizations), 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 research organizations, 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, 14,427 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 research organizations by location
12 lists · largest firstEvery Quantum research organizations list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Quantum research organizations based in the United States380
- Quantum research organizations based in India201
- Quantum research organizations based in Germany137
- Quantum research organizations based in the United Kingdom123
- Quantum research organizations based in France104
- Quantum research organizations based in Canada101
- Quantum research organizations based in the Netherlands62
- Quantum research organizations based in Italy55
- Quantum research organizations based in Spain46
- Quantum research organizations based in Switzerland39
- Quantum research organizations based in Singapore30
- Quantum research organizations based in Japan25
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 research organizations, 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 research organizations are there worldwide?
RevenueBase identified 2,351 quantum research organizations 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?
BULL, headquartered in Bezons, tops this list with the largest team on record.
Which country has the most quantum research organizations?
The United States leads with 380 companies, followed by India (201) and Germany (137). Every quantum research organizations list by country and city is linked on this page.
Which city has the most quantum research organizations?
London leads with 49 headquartered companies, followed by Paris (29) and Singapore (27).
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 14,427 verified decision-maker contacts tracked across these 2,351 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.