Company lists · Data refreshed October 2026
Top 25 Quantum computer suppliers worldwide
RevenueBase identified 291 company matches for quantum computer suppliers worldwide as of October 2026 and tracks 11,951 professional contacts across them, including 4,511 with verified work emails. The United States is the largest market and London the largest hub.
This list covers company matches for quantum computer suppliers 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 October 29, 2026. Country and city lists for quantum computer suppliers 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.
The 25 largest quantum computer suppliers worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,911 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 · Oct 29, 2026 · View company records in RevenueBase | |||||
| 2 | 815 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 · Oct 29, 2026 · View company records in RevenueBase | |||||
| 3 | 699 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 · Oct 29, 2026 · View company records in RevenueBase | |||||
| 4 | 418 contacts → | ||||
Exact match “IQM is pioneering the future of superconducting quantum computers.” Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase | |||||
| 5 | 339 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 · Oct 29, 2026 · View company records in RevenueBase | |||||
| 6 | 301 contacts → | ||||
Exact match “We build Programmable Quantum Simulators and Quantum Computers made of 2D and 3D Atomic Arrays.” Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase | |||||
| 7 | 247 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 · Oct 29, 2026 · View company records in RevenueBase | |||||
| 8 | 238 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 · Oct 29, 2026 · View company records in RevenueBase | |||||
| 9 | 194 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 · Oct 29, 2026 · View company records in RevenueBase | |||||
| 10 | 191 contacts → | ||||
Exact match “Rigetti is a pioneer in full-stack quantum computing.” Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase | |||||
| 11 | 176 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 · Oct 29, 2026 · View company records in RevenueBase | |||||
| 12 | 173 contacts → | ||||
Exact match “At Qblox we operate at the frontier of the quantum revolution.” Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase | |||||
| 13 | 169 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 · Oct 29, 2026 · View company records in RevenueBase | |||||
| 14 | 151 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 · Oct 29, 2026 · View company records in RevenueBase | |||||
| 15 | 129 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 · Oct 29, 2026 · View company records in RevenueBase | |||||
| 16 | 128 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 · Oct 29, 2026 · View company records in RevenueBase | |||||
| 17 | 124 contacts → | ||||
Exact match “Quantum Computing Inc.(Nasdaq: QUBT) is a quantum optics and integrated photonics company focused on delivering accessible, scalable, and cost-effective quantum machines and…” Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase | |||||
| 18 | 121 contacts → | ||||
Exact match “planqc's quantum computers store information in individual atoms – nature's best qubits.” Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase | |||||
| 19 | 113 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 · Oct 29, 2026 · View company records in RevenueBase | |||||
| 20 | 108 contacts → | ||||
Exact match “Diraq is building quantum computers based on modified silicon transistors, the technology best suited to achieving utility scale, when value far outweighs cost.” Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase | |||||
| 21 | 100 contacts → | ||||
Exact match “QuantWare is the dedicated quantum processor company.” Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase | |||||
| 22 | 95 contacts → | ||||
Exact match “Silicon Quantum Computing (SQC) is at the forefront of global efforts to deliver a commercial-scale quantum system.” Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase | |||||
| 23 | 94 contacts → | ||||
Exact match “The future is quantum.” Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase | |||||
| 24 | 93 contacts → | ||||
Exact match “A quantum computer harnesses the fundamental forces that govern the physical world.” Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase | |||||
| 25 | 93 contacts → | ||||
Exact match “Quobly is a quantum computing company developing silicon-based quantum computers using proven semiconductor manufacturing processes.” Recorded in the RevenueBase company graph · Oct 29, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “quantum computer suppliers”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 291 quantum computer suppliers worldwide
See the full list, filter by size, metro and specialty, and access 4,511 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Quantum computer suppliers worldwide at a glance
As of Oct 29, 2026Companies by employee count
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 quantum computer suppliers are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “quantum computer suppliers” 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 4,511 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 October 29, 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.
Quantum computer suppliers by location
1 lists · largest firstEvery Quantum computer suppliers 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 “quantum computer suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many quantum computer suppliers are there worldwide?
RevenueBase identified 291 company matches for quantum computer suppliers worldwide as of October 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 quantum computer suppliers?
The United States leads with 58 companies. Every quantum computer suppliers list by country and city is linked on this page.
Which city has the most quantum computer suppliers?
London leads with 10 company records, followed by Hyderabad (6) and College Park (5).
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 4,511 professional contacts with verified work emails tracked across these 291 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 October 29, 2026.
Ready to reach these companies? Verified emails and direct dials for all 291 quantum computer suppliers worldwide. Start with a free account, no credit card.
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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.
More company lists
Company intelligence · public preview
Top 25 quantum computer suppliers worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 291 matching company records for quantum computer suppliers worldwide, with 11,951 tracked contacts and 4,511 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 29, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 quantum computer suppliers worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  BULLbull.comHQ: Bezons, FranceReported employees: 1,001-5,000 | Bezons, France | 1,001-5,000 | Exact match | 2,911 contacts → |
“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 description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  IONQionq.comHQ: College Park, MD, United StatesReported employees: 1,001-5,000 | College Park, MD, United States | 1,001-5,000 | Exact match | 815 contacts → |
“IonQ, Inc.[NYSE: IONQ] is the world’s leading quantum platform and foundry - delivering integrated quantum solutions across computing, networking, sensing, and security.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Quantinuumquantinuum.comHQ: Broomfield, CO, United StatesReported employees: 201-500 | Broomfield, CO, United States | 201-500 | Exact match | 699 contacts → |
“Science led and enterprise driven, Quantinuum unites Cambridge Quantum’s best-in-class software with Honeywell Quantum Solutions’ high-performing trapped-ion hardware.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | IQM Quantum Computersiqm.tech HQ: Espoo, FinlandReported employees: 201-500 | Espoo, Finland | 201-500 | Exact match | 418 contacts → |
“IQM is pioneering the future of superconducting quantum computers.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Xanaduxanadu.aiHQ: Toronto, ON, CanadaReported employees: 51-200 | Toronto, ON, Canada | 51-200 | Exact match | 339 contacts → |
“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 description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Pasqalpasqal.comHQ: Palaiseau, FranceReported employees: 201-500 | Palaiseau, France | 201-500 | Exact match | 301 contacts → |
“We build Programmable Quantum Simulators and Quantum Computers made of 2D and 3D Atomic Arrays.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Infleqtioninfleqtion.comHQ: Louisville, CO, United StatesReported employees: 201-500 | Louisville, CO, United States | 201-500 | Exact match | 247 contacts → |
“Infleqtion, Inc.(NYSE: INFQ) is a global leader in quantum technology, delivering neutral atom solutions for quantum computing, networking, sensing, and security.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Alice & BOBalice-bob.comHQ: Paris, FranceReported employees: 201-500 | Paris, France | 201-500 | Exact match | 238 contacts → |
“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 description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Quera Computing INCquera.comHQ: Boston, MA, United StatesReported employees: 51-200 | Boston, MA, United States | 51-200 | Exact match | 194 contacts → |
“Quantum computing is moving from "one day" to "day one." QuEra Computing is leading that transition.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Rigetti Computingrigetti.comHQ: Berkeley, CA, United StatesReported employees: 51-200 | Berkeley, CA, United States | 51-200 | Exact match | 191 contacts → |
“Rigetti is a pioneer in full-stack quantum computing.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Photonic INCphotonic.comHQ: Coquitlam, BC, CanadaReported employees: 51-200 | Coquitlam, BC, Canada | 51-200 | Exact match | 176 contacts → |
“Based in beautiful Vancouver, Canada, Photonic is delivering scalable, distributed, and fault-tolerant quantum computing and networking technologies.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  QBLOXqblox.comHQ: Delft, NetherlandsReported employees: 51-200 | Delft, Netherlands | 51-200 | Exact match | 173 contacts → |
“At Qblox we operate at the frontier of the quantum revolution.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Quandelaquandela.comHQ: Massy, FranceReported employees: 51-200 | Massy, France | 51-200 | Exact match | 169 contacts → |
“Quandela specialises in the production of photon-based quantum computing and cloud solutions, enabling organisations to achieve their quantum transformation.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Oxford Quantum Circuits OQCoqc.techHQ: Shinfield, United KingdomReported employees: 51-200 | Shinfield, United Kingdom | 51-200 | Exact match | 151 contacts → |
“Quantum computing is poised to reshape our world by addressing the complex challenges we face today.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Classiqclassiq.io HQ: Tel Aviv, IsraelReported employees: 51-200 | Tel Aviv, Israel | 51-200 | Exact match | 129 contacts → |
“Welcome to Classiq - Leading Quantum Computing Software Inspired by traditional semiconductor design automation, Classiq combines deep quantum expertise with novel implementation…” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Atom Computingatom-computing.comHQ: Berkeley, CA, United StatesReported employees: 51-200 | Berkeley, CA, United States | 51-200 | Exact match | 128 contacts → |
“We build scalable quantum computers with atomic arrays that empower our customers to achieve computational breakthroughs.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Quantum Computing INCquantumcomputinginc.comHQ: Hoboken, NJ, United StatesReported employees: 201-500 | Hoboken, NJ, United States | 201-500 | Exact match | 124 contacts → |
“Quantum Computing Inc.(Nasdaq: QUBT) is a quantum optics and integrated photonics company focused on delivering accessible, scalable, and cost-effective quantum machines and…” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Planqcplanqc.euHQ: Munich, GermanyReported employees: 51-200 | Munich, Germany | 51-200 | Exact match | 121 contacts → |
“planqc's quantum computers store information in individual atoms – nature's best qubits.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | ID Quantiqueidquantique.com HQ: Geneva, SwitzerlandReported employees: 51-200 | Geneva, Switzerland | 51-200 | Exact match | 113 contacts → |
“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 description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  DIRAQdiraq.comHQ: Sydney, AustraliaReported employees: 51-200 | Sydney, Australia | 51-200 | Exact match | 108 contacts → |
“Diraq is building quantum computers based on modified silicon transistors, the technology best suited to achieving utility scale, when value far outweighs cost.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Quantwarequantware.comHQ: Delft, NetherlandsReported employees: 51-200 | Delft, Netherlands | 51-200 | Exact match | 100 contacts → |
“QuantWare is the dedicated quantum processor company.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Silicon Quantum Computingsqc.com.auHQ: Sydney, AustraliaReported employees: 51-200 | Sydney, Australia | 51-200 | Exact match | 95 contacts → |
“Silicon Quantum Computing (SQC) is at the forefront of global efforts to deliver a commercial-scale quantum system.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Oxford Ionicsoxionics.comHQ: Kidlington, United KingdomReported employees: 51-200 | Kidlington, United Kingdom | 51-200 | Exact match | 94 contacts → |
“The future is quantum.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Universal Quantumuniversalquantum.comHQ: Brighton, United KingdomReported employees: 51-200 | Brighton, United Kingdom | 51-200 | Exact match | 93 contacts → |
“A quantum computer harnesses the fundamental forces that govern the physical world.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Quoblyquobly.ioHQ: Grenoble, FranceReported employees: 51-200 | Grenoble, France | 51-200 | Exact match | 93 contacts → |
“Quobly is a quantum computing company developing silicon-based quantum computers using proven semiconductor manufacturing processes.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 291 company matches
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Quantum computer suppliers: dataset insights
October 29, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
291 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 291 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 29, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Quantum computer suppliers by location
1 lists · largest firstEvery Quantum computer suppliers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for quantum computer suppliers?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many quantum computer suppliers did RevenueBase find worldwide?
The saved snapshot records 291 matching company records, 11,951 tracked contacts and 4,511 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 29, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 quantum computer suppliers worldwide. Snapshot: October 29, 2026. https://revenuebase.ai/companies/browse/quantum-computer-suppliers.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 quantum computer suppliers worldwide
RevenueBase records 291 matching company records for quantum computer suppliers worldwide, with 11,951 tracked contacts and 4,511 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 29, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 quantum computer suppliers worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | BULLbull.com HQ: Bezons, FranceReported employees: 1,001-5,000 | Bezons, France | 1,001-5,000 | Exact match | 2,911 contacts → |
“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 description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | IONQionq.com HQ: College Park, MD, United StatesReported employees: 1,001-5,000 | College Park, MD, United States | 1,001-5,000 | Exact match | 815 contacts → |
“IonQ, Inc.[NYSE: IONQ] is the world’s leading quantum platform and foundry - delivering integrated quantum solutions across computing, networking, sensing, and security.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Quantinuumquantinuum.com HQ: Broomfield, CO, United StatesReported employees: 201-500 | Broomfield, CO, United States | 201-500 | Exact match | 699 contacts → |
“Science led and enterprise driven, Quantinuum unites Cambridge Quantum’s best-in-class software with Honeywell Quantum Solutions’ high-performing trapped-ion hardware.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | IQM Quantum Computersiqm.tech HQ: Espoo, FinlandReported employees: 201-500 | Espoo, Finland | 201-500 | Exact match | 418 contacts → |
“IQM is pioneering the future of superconducting quantum computers.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Xanaduxanadu.ai HQ: Toronto, ON, CanadaReported employees: 51-200 | Toronto, ON, Canada | 51-200 | Exact match | 339 contacts → |
“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 description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Pasqalpasqal.com HQ: Palaiseau, FranceReported employees: 201-500 | Palaiseau, France | 201-500 | Exact match | 301 contacts → |
“We build Programmable Quantum Simulators and Quantum Computers made of 2D and 3D Atomic Arrays.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Infleqtioninfleqtion.com HQ: Louisville, CO, United StatesReported employees: 201-500 | Louisville, CO, United States | 201-500 | Exact match | 247 contacts → |
“Infleqtion, Inc.(NYSE: INFQ) is a global leader in quantum technology, delivering neutral atom solutions for quantum computing, networking, sensing, and security.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Alice & BOBalice-bob.com HQ: Paris, FranceReported employees: 201-500 | Paris, France | 201-500 | Exact match | 238 contacts → |
“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 description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Quera Computing INCquera.com HQ: Boston, MA, United StatesReported employees: 51-200 | Boston, MA, United States | 51-200 | Exact match | 194 contacts → |
“Quantum computing is moving from "one day" to "day one." QuEra Computing is leading that transition.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Rigetti Computingrigetti.com HQ: Berkeley, CA, United StatesReported employees: 51-200 | Berkeley, CA, United States | 51-200 | Exact match | 191 contacts → |
“Rigetti is a pioneer in full-stack quantum computing.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Photonic INCphotonic.com HQ: Coquitlam, BC, CanadaReported employees: 51-200 | Coquitlam, BC, Canada | 51-200 | Exact match | 176 contacts → |
“Based in beautiful Vancouver, Canada, Photonic is delivering scalable, distributed, and fault-tolerant quantum computing and networking technologies.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | QBLOXqblox.com HQ: Delft, NetherlandsReported employees: 51-200 | Delft, Netherlands | 51-200 | Exact match | 173 contacts → |
“At Qblox we operate at the frontier of the quantum revolution.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Quandelaquandela.com HQ: Massy, FranceReported employees: 51-200 | Massy, France | 51-200 | Exact match | 169 contacts → |
“Quandela specialises in the production of photon-based quantum computing and cloud solutions, enabling organisations to achieve their quantum transformation.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Oxford Quantum Circuits OQCoqc.tech HQ: Shinfield, United KingdomReported employees: 51-200 | Shinfield, United Kingdom | 51-200 | Exact match | 151 contacts → |
“Quantum computing is poised to reshape our world by addressing the complex challenges we face today.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Classiqclassiq.io HQ: Tel Aviv, IsraelReported employees: 51-200 | Tel Aviv, Israel | 51-200 | Exact match | 129 contacts → |
“Welcome to Classiq - Leading Quantum Computing Software Inspired by traditional semiconductor design automation, Classiq combines deep quantum expertise with novel implementation…” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Atom Computingatom-computing.com HQ: Berkeley, CA, United StatesReported employees: 51-200 | Berkeley, CA, United States | 51-200 | Exact match | 128 contacts → |
“We build scalable quantum computers with atomic arrays that empower our customers to achieve computational breakthroughs.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Quantum Computing INCquantumcomputinginc.com HQ: Hoboken, NJ, United StatesReported employees: 201-500 | Hoboken, NJ, United States | 201-500 | Exact match | 124 contacts → |
“Quantum Computing Inc.(Nasdaq: QUBT) is a quantum optics and integrated photonics company focused on delivering accessible, scalable, and cost-effective quantum machines and…” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Planqcplanqc.eu HQ: Munich, GermanyReported employees: 51-200 | Munich, Germany | 51-200 | Exact match | 121 contacts → |
“planqc's quantum computers store information in individual atoms – nature's best qubits.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | ID Quantiqueidquantique.com HQ: Geneva, SwitzerlandReported employees: 51-200 | Geneva, Switzerland | 51-200 | Exact match | 113 contacts → |
“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 description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | DIRAQdiraq.com HQ: Sydney, AustraliaReported employees: 51-200 | Sydney, Australia | 51-200 | Exact match | 108 contacts → |
“Diraq is building quantum computers based on modified silicon transistors, the technology best suited to achieving utility scale, when value far outweighs cost.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Quantwarequantware.com HQ: Delft, NetherlandsReported employees: 51-200 | Delft, Netherlands | 51-200 | Exact match | 100 contacts → |
“QuantWare is the dedicated quantum processor company.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Silicon Quantum Computingsqc.com.au HQ: Sydney, AustraliaReported employees: 51-200 | Sydney, Australia | 51-200 | Exact match | 95 contacts → |
“Silicon Quantum Computing (SQC) is at the forefront of global efforts to deliver a commercial-scale quantum system.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Oxford Ionicsoxionics.com HQ: Kidlington, United KingdomReported employees: 51-200 | Kidlington, United Kingdom | 51-200 | Exact match | 94 contacts → |
“The future is quantum.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Universal Quantumuniversalquantum.com HQ: Brighton, United KingdomReported employees: 51-200 | Brighton, United Kingdom | 51-200 | Exact match | 93 contacts → |
“A quantum computer harnesses the fundamental forces that govern the physical world.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Quoblyquobly.io HQ: Grenoble, FranceReported employees: 51-200 | Grenoble, France | 51-200 | Exact match | 93 contacts → |
“Quobly is a quantum computing company developing silicon-based quantum computers using proven semiconductor manufacturing processes.” Recorded description excerpt · October 29, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 291 company matches
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Quantum computer suppliers: dataset insights
October 29, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
291 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 291 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 29, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Quantum computer suppliers by location
1 lists · largest firstEvery Quantum computer suppliers list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for quantum computer suppliers?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many quantum computer suppliers did RevenueBase find worldwide?
The saved snapshot records 291 matching company records, 11,951 tracked contacts and 4,511 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 29, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 quantum computer suppliers worldwide. Snapshot: October 29, 2026. https://revenuebase.ai/companies/browse/quantum-computer-suppliers.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗