Company lists · Data refreshed September 2026

Top 25 Superconducting quantum companies worldwide

RevenueBase identified 713 company matches for superconducting quantum companies worldwide as of September 2026 and tracks 14,816 professional contacts across them, including 6,089 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for superconducting quantum 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 22, 2026. Country and city lists for superconducting quantum 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 22, 2026 How this list was built
713Companies
14,816Contacts tracked
6,089Verified emails
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The 25 largest superconducting quantum companies worldwide

Ranked by team size
Top 25 of 713 company matches for superconducting quantum companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 22, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchBezons, FranceHQ recorded Sep 22, 20261,001-5,0002,172 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
2Exact matchBroomfield, CO, United StatesHQ recorded Sep 22, 2026201-500598 contacts →

Exact match

“Science led and enterprise driven, Quantinuum unites Cambridge Quantum’s best-in-class software with Honeywell Quantum Solutions’ high-performing trapped-ion hardware.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
3Exact matchCollege Park, MD, United StatesHQ recorded Sep 22, 20261,001-5,000574 contacts →

Exact match

“IonQ, Inc.[NYSE: IONQ] is the world’s leading quantum platform and foundry - delivering integrated quantum solutions across computing, networking, sensing, and security.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
4Exact matchHelsinki, FinlandHQ recorded Sep 22, 2026501-1,000399 contacts →

Exact match

“Bluefors envisions a world where everyone has access to the power of quantum.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
5Exact matchPalo Alto, CA, United StatesHQ recorded Sep 22, 2026201-500359 contacts →

Exact match

“Quantum computing will be a world-changing technology with the potential to unlock powerful advances in medicine, energy, finance and beyond.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
6Exact matchEspoo, FinlandHQ recorded Sep 22, 2026201-500350 contacts →

Exact match

“IQM is pioneering the future of superconducting quantum computers.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
7Exact matchPalaiseau, FranceHQ recorded Sep 22, 2026201-500294 contacts →

Exact match

“We build Programmable Quantum Simulators and Quantum Computers made of 2D and 3D Atomic Arrays.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
8Exact matchToronto, ON, CanadaHQ recorded Sep 22, 202651-200292 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
9Exact matchClaymont, United StatesHQ recorded Sep 22, 2026201-500252 contacts →

Exact match

“Quantum Machines envisions a new technological age.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
10Exact matchLouisville, CO, United StatesHQ recorded Sep 22, 2026201-500211 contacts →

Exact match

“Infleqtion, Inc.(NYSE: INFQ) is a global leader in quantum technology, delivering neutral atom solutions for quantum computing, networking, sensing, and security.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
11Exact matchParis, FranceHQ recorded Sep 22, 2026201-500200 contacts →

Exact match

“Alice & Bob is a quantum computing company based in Paris and Boston whose goal is to create the first universal, fault-tolerant quantum computer.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
12Exact matchChippendale, AustraliaHQ recorded Sep 22, 202651-200174 contacts →

Exact match

“Make quantum technology useful.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
13Exact matchBerkeley, CA, United StatesHQ recorded Sep 22, 202651-200171 contacts →

Exact match

“Rigetti is a pioneer in full-stack quantum computing.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
14Exact matchCoquitlam, BC, CanadaHQ recorded Sep 22, 202651-200159 contacts →

Exact match

“Based in beautiful Vancouver, Canada, Photonic is delivering scalable, distributed, and fault-tolerant quantum computing and networking technologies.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
15Exact matchDelft, NetherlandsHQ recorded Sep 22, 202651-200158 contacts →

Exact match

“At Qblox we operate at the frontier of the quantum revolution.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
16Exact matchMassy, FranceHQ recorded Sep 22, 202651-200149 contacts →

Exact match

“Quandela specialises in the production of photon-based quantum computing and cloud solutions, enabling organisations to achieve their quantum transformation.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
17Exact matchShinfield, United KingdomHQ recorded Sep 22, 202651-200146 contacts →

Exact match

“Quantum computing is poised to reshape our world by addressing the complex challenges we face today.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
18Exact matchBoston, MA, United StatesHQ recorded Sep 22, 202651-200142 contacts →

Exact match

“Quantum computing is moving from "one day" to "day one." QuEra Computing is leading that transition.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
19Exact matchGeneva, SwitzerlandHQ recorded Sep 22, 202651-200121 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
20Exact matchMunich, GermanyHQ recorded Sep 22, 202651-200116 contacts →

Exact match

“planqc's quantum computers store information in individual atoms – nature's best qubits.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
21Exact matchTel Aviv, IsraelHQ recorded Sep 22, 202651-200104 contacts →

Exact match

“Welcome to Classiq - Leading Quantum Computing Software Inspired by traditional semiconductor design automation, Classiq combines deep quantum expertise with novel implementation…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
22Exact matchUlm, GermanyHQ recorded Sep 22, 202651-20097 contacts →

Exact match

“At NVision, we engineer quantum-powered medical imaging technologies that deliver deeper, more precise MRI data for researchers and clinicians.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
23Exact matchBerkeley, CA, United StatesHQ recorded Sep 22, 202651-20096 contacts →

Exact match

“We build scalable quantum computers with atomic arrays that empower our customers to achieve computational breakthroughs.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
24Exact matchKidlington, United KingdomHQ recorded Sep 22, 202651-20087 contacts →

Exact match

“The future is quantum.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
25Exact matchBrighton, United KingdomHQ recorded Sep 22, 202651-20087 contacts →

Exact match

“A quantum computer harnesses the fundamental forces that govern the physical world.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase

Showing 25 of 713 superconducting quantum companies worldwide

See the full list, filter by size, metro and specialty, and access 6,089 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Superconducting quantum companies worldwide at a glance

As of Sep 22, 2026
41.1%Verified-email coverage
20.8Average contacts per company
1-10Median size (employees)
2.7%Largest-city concentration · London
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
385
11-50
212
51-200
85
201-500
25
501-1,000
4
1,001-5,000
2

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 superconducting quantum companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “superconducting quantum 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 6,089 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 22, 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.

Superconducting quantum companies by location

5 lists · largest first

Every Superconducting quantum 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 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 “superconducting quantum companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many superconducting quantum companies are there worldwide?

RevenueBase identified 713 company matches for superconducting quantum 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?

BULL tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most superconducting quantum companies?

The United States leads with 142 companies, followed by Germany (54) and India (51). Every superconducting quantum companies list by country and city is linked on this page.

Which city has the most superconducting quantum companies?

London leads with 19 company records, followed by Singapore (12) and College Park (9).

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 6,089 professional contacts with verified work emails tracked across these 713 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 22, 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 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.