Company lists · Data refreshed November 2026
Top 25 Quantum consulting firms worldwide
RevenueBase identified 717 company matches for quantum consulting firms worldwide as of November 2026 and tracks 9,421 professional contacts across them, including 3,622 with verified work emails. The United States is the largest market and London the largest hub.
This list covers company matches for quantum consulting firms 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 November 5, 2026. Country and city lists for quantum consulting firms 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 consulting firms worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,578 contacts → | ||||
Exact match “Imagine the power of physicists, mathematicians and computer scientists working as part of a European company with over 20 years of service excellence focused on data science…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 2 | 871 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 · Nov 5, 2026 · View company records in RevenueBase | |||||
| 3 | 536 contacts → | ||||
Exact match “HBG is a market intelligence firm offering insightful, validated & high quality qualitative & quantitative research data solutions to clients across the globe.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 4 | 450 contacts → | ||||
Exact match “D-Wave is a leader in the development and delivery of quantum computing systems, software, and services.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 5 | 370 contacts → | ||||
Exact match “In the tech and data intelligence worlds, a sandbox is where innovation is born.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 6 | 362 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 · Nov 5, 2026 · View company records in RevenueBase | |||||
| 7 | 312 contacts → | ||||
Exact match “Quantum Machines envisions a new technological age.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 8 | 265 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 · Nov 5, 2026 · View company records in RevenueBase | |||||
| 9 | 188 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 · Nov 5, 2026 · View company records in RevenueBase | |||||
| 10 | 161 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 · Nov 5, 2026 · View company records in RevenueBase | |||||
| 11 | 143 contacts → | ||||
Exact match “Somos la consultora especializada en investigación de mercados accionable.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 12 | 117 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 · Nov 5, 2026 · View company records in RevenueBase | |||||
| 13 | 94 contacts → | ||||
Exact match “Terra Quantum is a leading quantum technology company based in Germany and Switzerland.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 14 | 79 contacts → | ||||
Exact match “QUANT AI Lab is a European technology company that industrializes AI to deliver measurable, sustainable performance across Finance and Operations.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 15 | 69 contacts → | ||||
Exact match “Vector Atomic is commercializing quantum technology for applications including GPS-free navigation, telecommunications, and computing.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 16 | 64 contacts → | ||||
Exact match “Quasi un secolo fa, Albert Einstein e altri intrepidi studiosi cominciarono a studiare la materia quantistica.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 17 | 56 contacts → | ||||
Exact match “Kipu Quantum is the worldwide pioneer developing and commercializing quantum-advantage solutions for the industrial problems of our customers.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 18 | 55 contacts → | ||||
Exact match “Quantum AI Global is at the forefront of the quantum revolution, pioneering advancements in both quantum hardware and software.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 19 | 53 contacts → | ||||
Exact match “Data, Finance, Analytics & IT.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 20 | 52 contacts → | ||||
Exact match “The hardest problems are not just bigger workloads.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 21 | 51 contacts → | ||||
Exact match “1QBit redefines intractable problems by reframing them to achieve superior results using the most effective quantum and classical processors built to date.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 22 | 49 contacts → | ||||
Exact match “At Resonance, we make emerging technologies universally understandable and accessible, helping our clients thrive in a rapidly evolving world.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 23 | 49 contacts → | ||||
Exact match “ParityQC is the world’s only quantum architecture company.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 24 | 48 contacts → | ||||
Exact match “In a world of complexity and big decisions, there are choices that are simple and clear, yet flawed.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 25 | 45 contacts → | ||||
Exact match “Algorithmiq develops quantum software that makes quantum computers useful for science and industry.” Recorded in the RevenueBase company graph · Nov 5, 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 consulting firms”. 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 717 quantum consulting firms worldwide
See the full list, filter by size, metro and specialty, and access 3,622 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Quantum consulting firms worldwide at a glance
As of Nov 5, 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 consulting firms are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “quantum consulting firms” 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 3,622 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 November 5, 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 consulting firms by location
6 lists · largest firstEvery Quantum consulting firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Quantum consulting firms based in the United States140
- Quantum consulting firms based in India50
- Quantum consulting firms based in the United Kingdom50
- Quantum consulting firms based in Germany30
- Quantum consulting firms based in Canada28
Cities
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 consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many quantum consulting firms are there worldwide?
RevenueBase identified 717 company matches for quantum consulting firms worldwide as of November 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?
D-Fine tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most quantum consulting firms?
The United States leads with 140 companies, followed by India (50) and the United Kingdom (50). Every quantum consulting firms list by country and city is linked on this page.
Which city has the most quantum consulting firms?
London leads with 29 company records, followed by New York (12) and Paris (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 3,622 professional contacts with verified work emails tracked across these 717 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 November 5, 2026.
Ready to reach these companies? Verified emails and direct dials for all 717 quantum consulting firms 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 consulting firms worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 717 matching company records for quantum consulting firms worldwide, with 9,421 tracked contacts and 3,622 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: November 5, 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 consulting firms 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 |  D-Fined-fine.comHQ: Frankfurt, GermanyReported employees: 1,001-5,000 | Frankfurt, Germany | 1,001-5,000 | Exact match | 1,578 contacts → |
“Imagine the power of physicists, mathematicians and computer scientists working as part of a European company with over 20 years of service excellence focused on data science…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  IONQionq.comHQ: College Park, United StatesReported employees: 1,001-5,000 | College Park, United States | 1,001-5,000 | Exact match | 871 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 · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  High Beam Global HBGhbgknowledge.comHQ: Gurgaon, IndiaReported employees: 51-200 | Gurgaon, India | 51-200 | Exact match | 536 contacts → |
“HBG is a market intelligence firm offering insightful, validated & high quality qualitative & quantitative research data solutions to clients across the globe.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  D-Wavedwavequantum.comHQ: Palo Alto, BC, United StatesReported employees: 501-1,000 | Palo Alto, BC, United States | 501-1,000 | Exact match | 450 contacts → |
“D-Wave is a leader in the development and delivery of quantum computing systems, software, and services.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Sandboxaqsandboxaq.comHQ: Palo Alto, NY, United StatesReported employees: 51-200 | Palo Alto, NY, United States | 51-200 | Exact match | 370 contacts → |
“In the tech and data intelligence worlds, a sandbox is where innovation is born.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Xanaduxanadu.aiHQ: Toronto, ON, CanadaReported employees: 51-200 | Toronto, ON, Canada | 51-200 | Exact match | 362 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 · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Quantum Machinesquantum-machines.coHQ: Claymont, United StatesReported employees: 201-500 | Claymont, United States | 201-500 | Exact match | 312 contacts → |
“Quantum Machines envisions a new technological age.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Infleqtioninfleqtion.comHQ: Louisville, CO, United StatesReported employees: 201-500 | Louisville, CO, United States | 201-500 | Exact match | 265 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 · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Quandelaquandela.comHQ: Massy, FranceReported employees: 51-200 | Massy, France | 51-200 | Exact match | 188 contacts → |
“Quandela specialises in the production of photon-based quantum computing and cloud solutions, enabling organisations to achieve their quantum transformation.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Oxford Quantum Circuits OQCoqc.techHQ: Shinfield, United KingdomReported employees: 51-200 | Shinfield, United Kingdom | 51-200 | Exact match | 161 contacts → |
“Quantum computing is poised to reshape our world by addressing the complex challenges we face today.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Clientes Anónimosclientesanonimos.comHQ: Lima, PeruReported employees: 51-200 | Lima, Peru | 51-200 | Exact match | 143 contacts → |
“Somos la consultora especializada en investigación de mercados accionable.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  ID Quantiqueidquantique.comHQ: Geneva, SwitzerlandReported employees: 51-200 | Geneva, Switzerland | 51-200 | Exact match | 117 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 · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Terra Quantum AGterraquantum.swissHQ: St. Gallen, SwitzerlandReported employees: 51-200 | St. Gallen, Switzerland | 51-200 | Exact match | 94 contacts → |
“Terra Quantum is a leading quantum technology company based in Germany and Switzerland.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Quant AI LABquant.globalHQ: Paris, SpainReported employees: 51-200 | Paris, Spain | 51-200 | Exact match | 79 contacts → |
“QUANT AI Lab is a European technology company that industrializes AI to deliver measurable, sustainable performance across Finance and Operations.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Vector Atomicvectoratomic.comHQ: Pleasanton, CA, United StatesReported employees: 51-200 | Pleasanton, CA, United States | 51-200 | Exact match | 69 contacts → |
“Vector Atomic is commercializing quantum technology for applications including GPS-free navigation, telecommunications, and computing.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Quanturequanture.comHQ: Formigine, ItalyReported employees: 51-200 | Formigine, Italy | 51-200 | Exact match | 64 contacts → |
“Quasi un secolo fa, Albert Einstein e altri intrepidi studiosi cominciarono a studiare la materia quantistica.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Kipu Quantumkipu-quantum.comHQ: Berlin, GermanyReported employees: 51-200 | Berlin, Germany | 51-200 | Exact match | 56 contacts → |
“Kipu Quantum is the worldwide pioneer developing and commercializing quantum-advantage solutions for the industrial problems of our customers.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Quantum AI Globalthequantum.aiHQ: Hyderabad, IndiaReported employees: 51-200 | Hyderabad, India | 51-200 | Exact match | 55 contacts → |
“Quantum AI Global is at the forefront of the quantum revolution, pioneering advancements in both quantum hardware and software.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Mploy Associatesmployassociates.comHQ: Utrecht, NetherlandsReported employees: 51-200 | Utrecht, Netherlands | 51-200 | Exact match | 53 contacts → |
“Data, Finance, Analytics & IT.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Equal1equal1.comHQ: Clonskeagh, IrelandReported employees: 11-50 | Clonskeagh, Ireland | 11-50 | Exact match | 52 contacts → |
“The hardest problems are not just bigger workloads.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  1qbit1qbit.comHQ: Vancouver, BC, CanadaReported employees: 51-200 | Vancouver, BC, Canada | 51-200 | Exact match | 51 contacts → |
“1QBit redefines intractable problems by reframing them to achieve superior results using the most effective quantum and classical processors built to date.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Resonanceresonance.holdingsHQ: Toronto, CanadaReported employees: 11-50 | Toronto, Canada | 11-50 | Exact match | 49 contacts → |
“At Resonance, we make emerging technologies universally understandable and accessible, helping our clients thrive in a rapidly evolving world.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Parityqcparityqc.comHQ: Innsbruck, AustriaReported employees: 11-50 | Innsbruck, Austria | 11-50 | Exact match | 49 contacts → |
“ParityQC is the world’s only quantum architecture company.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Endgame Analyticsendgameanalytics.com.auHQ: Sydney, AustraliaReported employees: 11-50 | Sydney, Australia | 11-50 | Exact match | 48 contacts → |
“In a world of complexity and big decisions, there are choices that are simple and clear, yet flawed.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Algorithmiqalgorithmiq.fiHQ: Milan, ItalyReported employees: 11-50 | Milan, Italy | 11-50 | Exact match | 45 contacts → |
“Algorithmiq develops quantum software that makes quantum computers useful for science and industry.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 717 company matches
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Quantum consulting firms: dataset insights
November 5, 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
717 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 717 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: November 5, 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 consulting firms by location
6 lists · largest firstEvery Quantum consulting firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Quantum consulting firms based in the United States140
- Quantum consulting firms based in India50
- Quantum consulting firms based in the United Kingdom50
- Quantum consulting firms based in Germany30
- Quantum consulting firms based in Canada28
Cities
Questions about this company list
What does Exact match mean for quantum consulting firms?
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 consulting firms did RevenueBase find worldwide?
The saved snapshot records 717 matching company records, 9,421 tracked contacts and 3,622 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: November 5, 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.
Related lists
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Cite this list
RevenueBase Data Team. Top 25 quantum consulting firms worldwide. Snapshot: November 5, 2026. https://revenuebase.ai/companies/browse/quantum-consulting-firms.
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 consulting firms worldwide
RevenueBase records 717 matching company records for quantum consulting firms worldwide, with 9,421 tracked contacts and 3,622 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: November 5, 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 consulting firms 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 | D-Fined-fine.com HQ: Frankfurt, GermanyReported employees: 1,001-5,000 | Frankfurt, Germany | 1,001-5,000 | Exact match | 1,578 contacts → |
“Imagine the power of physicists, mathematicians and computer scientists working as part of a European company with over 20 years of service excellence focused on data science…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | IONQionq.com HQ: College Park, United StatesReported employees: 1,001-5,000 | College Park, United States | 1,001-5,000 | Exact match | 871 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 · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | High Beam Global HBGhbgknowledge.com HQ: Gurgaon, IndiaReported employees: 51-200 | Gurgaon, India | 51-200 | Exact match | 536 contacts → |
“HBG is a market intelligence firm offering insightful, validated & high quality qualitative & quantitative research data solutions to clients across the globe.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | D-Wavedwavequantum.com HQ: Palo Alto, BC, United StatesReported employees: 501-1,000 | Palo Alto, BC, United States | 501-1,000 | Exact match | 450 contacts → |
“D-Wave is a leader in the development and delivery of quantum computing systems, software, and services.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Sandboxaqsandboxaq.com HQ: Palo Alto, NY, United StatesReported employees: 51-200 | Palo Alto, NY, United States | 51-200 | Exact match | 370 contacts → |
“In the tech and data intelligence worlds, a sandbox is where innovation is born.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Xanaduxanadu.ai HQ: Toronto, ON, CanadaReported employees: 51-200 | Toronto, ON, Canada | 51-200 | Exact match | 362 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 · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Quantum Machinesquantum-machines.co HQ: Claymont, United StatesReported employees: 201-500 | Claymont, United States | 201-500 | Exact match | 312 contacts → |
“Quantum Machines envisions a new technological age.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Infleqtioninfleqtion.com HQ: Louisville, CO, United StatesReported employees: 201-500 | Louisville, CO, United States | 201-500 | Exact match | 265 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 · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Quandelaquandela.com HQ: Massy, FranceReported employees: 51-200 | Massy, France | 51-200 | Exact match | 188 contacts → |
“Quandela specialises in the production of photon-based quantum computing and cloud solutions, enabling organisations to achieve their quantum transformation.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Oxford Quantum Circuits OQCoqc.tech HQ: Shinfield, United KingdomReported employees: 51-200 | Shinfield, United Kingdom | 51-200 | Exact match | 161 contacts → |
“Quantum computing is poised to reshape our world by addressing the complex challenges we face today.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Clientes Anónimosclientesanonimos.com HQ: Lima, PeruReported employees: 51-200 | Lima, Peru | 51-200 | Exact match | 143 contacts → |
“Somos la consultora especializada en investigación de mercados accionable.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | ID Quantiqueidquantique.com HQ: Geneva, SwitzerlandReported employees: 51-200 | Geneva, Switzerland | 51-200 | Exact match | 117 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 · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Terra Quantum AGterraquantum.swiss HQ: St. Gallen, SwitzerlandReported employees: 51-200 | St. Gallen, Switzerland | 51-200 | Exact match | 94 contacts → |
“Terra Quantum is a leading quantum technology company based in Germany and Switzerland.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Quant AI LABquant.global HQ: Paris, SpainReported employees: 51-200 | Paris, Spain | 51-200 | Exact match | 79 contacts → |
“QUANT AI Lab is a European technology company that industrializes AI to deliver measurable, sustainable performance across Finance and Operations.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Vector Atomicvectoratomic.com HQ: Pleasanton, CA, United StatesReported employees: 51-200 | Pleasanton, CA, United States | 51-200 | Exact match | 69 contacts → |
“Vector Atomic is commercializing quantum technology for applications including GPS-free navigation, telecommunications, and computing.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Quanturequanture.com HQ: Formigine, ItalyReported employees: 51-200 | Formigine, Italy | 51-200 | Exact match | 64 contacts → |
“Quasi un secolo fa, Albert Einstein e altri intrepidi studiosi cominciarono a studiare la materia quantistica.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Kipu Quantumkipu-quantum.com HQ: Berlin, GermanyReported employees: 51-200 | Berlin, Germany | 51-200 | Exact match | 56 contacts → |
“Kipu Quantum is the worldwide pioneer developing and commercializing quantum-advantage solutions for the industrial problems of our customers.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Quantum AI Globalthequantum.ai HQ: Hyderabad, IndiaReported employees: 51-200 | Hyderabad, India | 51-200 | Exact match | 55 contacts → |
“Quantum AI Global is at the forefront of the quantum revolution, pioneering advancements in both quantum hardware and software.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Mploy Associatesmployassociates.com HQ: Utrecht, NetherlandsReported employees: 51-200 | Utrecht, Netherlands | 51-200 | Exact match | 53 contacts → |
“Data, Finance, Analytics & IT.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Equal1equal1.com HQ: Clonskeagh, IrelandReported employees: 11-50 | Clonskeagh, Ireland | 11-50 | Exact match | 52 contacts → |
“The hardest problems are not just bigger workloads.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | 1qbit1qbit.com HQ: Vancouver, BC, CanadaReported employees: 51-200 | Vancouver, BC, Canada | 51-200 | Exact match | 51 contacts → |
“1QBit redefines intractable problems by reframing them to achieve superior results using the most effective quantum and classical processors built to date.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Resonanceresonance.holdings HQ: Toronto, CanadaReported employees: 11-50 | Toronto, Canada | 11-50 | Exact match | 49 contacts → |
“At Resonance, we make emerging technologies universally understandable and accessible, helping our clients thrive in a rapidly evolving world.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Parityqcparityqc.com HQ: Innsbruck, AustriaReported employees: 11-50 | Innsbruck, Austria | 11-50 | Exact match | 49 contacts → |
“ParityQC is the world’s only quantum architecture company.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Endgame Analyticsendgameanalytics.com.au HQ: Sydney, AustraliaReported employees: 11-50 | Sydney, Australia | 11-50 | Exact match | 48 contacts → |
“In a world of complexity and big decisions, there are choices that are simple and clear, yet flawed.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Algorithmiqalgorithmiq.fi HQ: Milan, ItalyReported employees: 11-50 | Milan, Italy | 11-50 | Exact match | 45 contacts → |
“Algorithmiq develops quantum software that makes quantum computers useful for science and industry.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 717 company matches
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Quantum consulting firms: dataset insights
November 5, 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
717 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 717 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: November 5, 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 consulting firms by location
6 lists · largest firstEvery Quantum consulting firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Quantum consulting firms based in the United States140
- Quantum consulting firms based in India50
- Quantum consulting firms based in the United Kingdom50
- Quantum consulting firms based in Germany30
- Quantum consulting firms based in Canada28
Cities
Questions about this company list
What does Exact match mean for quantum consulting firms?
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 consulting firms did RevenueBase find worldwide?
The saved snapshot records 717 matching company records, 9,421 tracked contacts and 3,622 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: November 5, 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 consulting firms worldwide. Snapshot: November 5, 2026. https://revenuebase.ai/companies/browse/quantum-consulting-firms.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗