Company lists · Data refreshed September 2026

Top 25 Quantum computing cloud providers based in the United States

RevenueBase identified 63 company matches for quantum computing cloud providers associated with the United States as of September 2026 and tracks 2,899 professional contacts across them, including 1,333 with verified work emails. Palo Alto is the largest hub.

This list covers company matches for quantum computing cloud providers associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 29, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 29, 2026 How this list was built
63Companies
2,899Contacts tracked
1,333Verified emails
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The 25 largest quantum computing cloud providers based in the United States

Ranked by team size
Top 25 of 63 company matches for quantum computing cloud providers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchBroomfield, CO, United StatesHQ recorded Sep 29, 2026201-500598 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2Exact matchCollege Park, MD, United StatesHQ recorded Sep 29, 20261,001-5,000574 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3Exact matchClaymont, United StatesHQ recorded Sep 29, 2026201-500252 contacts →

Exact match

“Quantum Machines envisions a new technological age.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4Exact matchLouisville, CO, United StatesHQ recorded Sep 29, 2026201-500211 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5Exact matchBerkeley, CA, United StatesHQ recorded Sep 29, 202651-200171 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6Exact matchBoston, MA, United StatesHQ recorded Sep 29, 202651-200142 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7Exact matchBerkeley, CA, United StatesHQ recorded Sep 29, 202651-20096 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8Exact matchHoboken, NJ, United StatesHQ recorded Sep 29, 2026201-50087 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 · Sep 29, 2026 · View company records in RevenueBase
9Exact matchPalo Alto, CA, United StatesHQ recorded Sep 29, 202611-5038 contacts →

Exact match

“QC Ware is a quantum computing software company building enterprise solutions.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10Exact matchElmsford, NY, United StatesHQ recorded Sep 29, 202611-5034 contacts →

Exact match

“SEEQC is developing the first digital quantum computing platform for global businesses.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11Exact matchAustin, TX, United StatesHQ recorded Sep 29, 202611-5031 contacts →

Exact match

“Strangeworks is an unconventional computing software company based in Austin, TX.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12Exact matchBoston, MA, United StatesHQ recorded Sep 29, 202611-5026 contacts →

Exact match

“Aliro, The Quantum Networking Company®, offers AliroNet® to run entanglement-based Quantum Networks for applications such as Quantum Secure Communications (QSC), secure access to…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13Exact matchBrooklyn, United StatesHQ recorded Sep 29, 202611-5021 contacts →

Exact match

“Haiqu is a quantum software company developing a new application execution stack for all modalities of near-term quantum computers.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14Exact matchCambridge, MA, United StatesHQ recorded Sep 29, 202611-5020 contacts →

Exact match

“Atlantic Quantum is now part of Google Quantum AI.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15Exact matchChicago, IL, United StatesHQ recorded Sep 29, 202611-5019 contacts →

Exact match

“qBraid is the quantum cloud connecting developers, researchers, enterprises, and hardware partners.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16Exact matchBay, CA, United StatesHQ recorded Sep 29, 202611-5017 contacts →

Exact match

“BlueQubit builds first-in-class quantum software for current and upcoming quantum computers.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17Exact matchChicago, IL, United StatesHQ recorded Sep 29, 202611-5016 contacts →

Exact match

“EeroQ is building a next-generation quantum computer using the technology of today.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18Exact matchBend, OR, United StatesHQ recorded Sep 29, 202611-506 contacts →

Exact match

“Scale workloads and ensure universal access to compute for AI research, high-performance simulation, and quantum exploration.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19Exact matchWilmington, DE, United StatesHQ recorded Sep 29, 202611-505 contacts →

Exact match

“Quantum-enhanced machine learning solutions tailored for NISQ but delivering a competitive edge in simulators.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20Exact matchSan Mateo, CA, United StatesHQ recorded Sep 29, 20261-105 contacts →

Exact match

“AQS is building FabriQ, an AI-driven quantum platform for enterprise finance.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21Exact matchAustin, TX, United StatesHQ recorded Sep 29, 202611-505 contacts →

Exact match

“Dikan Quantum Corporation (fka Dikan LLC) is a quantum computing software company that has built an industry agnostic Quantum Learning Model.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22Exact matchSeattle, WA, United StatesHQ recorded Sep 29, 20261-104 contacts →

Exact match

“Spectral Capital Corporation (FCCN) is a publicly traded Deep Quantum Technology Provider dedicated to the development and support of Quantum as a Service (QaaS) for decentralized…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23Exact matchNewport, RI, United StatesHQ recorded Sep 29, 20261-103 contacts →

Exact match

“Entanglement Institute (ei) is building the world's most advanced quantum and alternative computing facility in Newport, Rhode Island.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24Exact matchPalo Alto, CA, United StatesHQ recorded Sep 29, 20261-103 contacts →

Exact match

“Our mission at QuantumEon is to provide world-class consulting services, research and development, and quantum engineering and science to our clients, helping them optimize…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25Exact matchMorgantown, WV, United StatesHQ recorded Sep 29, 20261-103 contacts →

Exact match

“QubitSolve is dedicated to harnessing the power of quantum computing for computational fluid dynamics engineers.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase

Showing 25 of 63 quantum computing cloud providers based in the United States

See the full list, filter by size, metro and specialty, and access 1,333 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Quantum computing cloud providers based in the United States at a glance

As of Sep 29, 2026
46.0%Verified-email coverage
46.0Average contacts per company
11-50Median size (employees)
9.5%Largest-city concentration · Palo Alto
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
30
11-50
20
51-200
5
201-500
6
501-1,000
1
1,001-5,000
1

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 63 companies.

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.
What qualifies
Company records associated with the United States whose business descriptions match “quantum computing cloud providers” 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 1,333 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 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.

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 computing cloud providers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many quantum computing cloud providers are there based in the United States?

RevenueBase identified 63 company matches for quantum computing cloud providers associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

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

Which city has the most quantum computing cloud providers?

Palo Alto leads with 6 company records, followed by New York (6) and Boston (4).

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 1,333 professional contacts with verified work emails tracked across these 63 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.