Company lists · Data refreshed September 2026

Top 25 Trapped ion quantum companies worldwide

Name: Trapped ion quantum companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 194 companies tracked

RevenueBase identified 194 trapped ion quantum companies worldwide as of September 2026 and tracks 7,150 professional contacts across them, including 3,399 with verified work emails. The United States is the largest market and Hyderabad the largest hub.

This list covers trapped ion quantum companies worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 22, 2026. Country and city lists for trapped ion quantum companies follow the table.

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

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 22, 2026 86% judged on-target in blind review

194Companies

7,150Contacts tracked

3,399Verified emails

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The 25 largest trapped ion quantum companies worldwide

Ranked by team size

Top 25 of 194 trapped ion quantum companies worldwide, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to trapped ion quantum companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Quantinuum	Strong evidence	Broomfield, CO, United StatesHQ checked Sep 22, 2026	201-500	598 contacts →
	Strong evidence “Science led and enterprise driven, Quantinuum unites Cambridge Quantum’s best-in-class software with Honeywell Quantum Solutions’ high-performing trapped-ion hardware.” Source: RevenueBase Database · checked Sep 22, 2026
2	IONQ	Partial evidence	College Park, MD, United StatesHQ checked Sep 22, 2026	1,001-5,000	574 contacts →
	Partial evidence “IonQ, Inc.[NYSE: IONQ] is the world’s leading quantum platform and foundry - delivering integrated quantum solutions across computing, networking, sensing, and security.” Source: RevenueBase Database · checked Sep 22, 2026
3	IQM Quantum Computers	Partial evidence	Espoo, FinlandHQ checked Sep 22, 2026	201-500	350 contacts →
	Partial evidence “IQM is pioneering the future of superconducting quantum computers.” Source: RevenueBase Database · checked Sep 22, 2026
4	Pasqal	Partial evidence	Palaiseau, FranceHQ checked Sep 22, 2026	201-500	294 contacts →
	Partial evidence “We build Programmable Quantum Simulators and Quantum Computers made of 2D and 3D Atomic Arrays.” Source: RevenueBase Database · checked Sep 22, 2026
5	Xanadu	Partial evidence	Toronto, ON, CanadaHQ checked Sep 22, 2026	51-200	292 contacts →
	Partial evidence “Xanadu Quantum Technologies Limited is a Canadian photonic quantum computing company with the mission to build quantum computers that are useful and available to people everywhere.” Source: RevenueBase Database · checked Sep 22, 2026
6	Infleqtion	Partial evidence	Louisville, CO, United StatesHQ checked Sep 22, 2026	201-500	211 contacts →
	Partial evidence “Infleqtion, Inc.(NYSE: INFQ) is a global leader in quantum technology, delivering neutral atom solutions for quantum computing, networking, sensing, and security.” Source: RevenueBase Database · checked Sep 22, 2026
7	Alice & BOB	Partial evidence	Paris, FranceHQ checked Sep 22, 2026	201-500	200 contacts →
	Partial evidence “Alice & Bob is a quantum computing company based in Paris and Boston whose goal is to create the first universal, fault-tolerant quantum computer.” Source: RevenueBase Database · checked Sep 22, 2026
8	Rigetti Computing	Partial evidence	Berkeley, CA, United StatesHQ checked Sep 22, 2026	51-200	171 contacts →
	Partial evidence “Rigetti is a pioneer in full-stack quantum computing.” Source: RevenueBase Database · checked Sep 22, 2026
9	Photonic INC	Partial evidence	Coquitlam, BC, CanadaHQ checked Sep 22, 2026	51-200	159 contacts →
	Partial evidence “Based in beautiful Vancouver, Canada, Photonic is delivering scalable, distributed, and fault-tolerant quantum computing and networking technologies.” Source: RevenueBase Database · checked Sep 22, 2026
10	QBLOX	Partial evidence	Delft, NetherlandsHQ checked Sep 22, 2026	51-200	158 contacts →
	Partial evidence “At Qblox we operate at the frontier of the quantum revolution.” Source: RevenueBase Database · checked Sep 22, 2026
11	Quandela	Partial evidence	Massy, FranceHQ checked Sep 22, 2026	51-200	149 contacts →
	Partial evidence “Quandela specialises in the production of photon-based quantum computing and cloud solutions, enabling organisations to achieve their quantum transformation.” Source: RevenueBase Database · checked Sep 22, 2026
12	Oxford Quantum Circuits OQC	Partial evidence	Shinfield, United KingdomHQ checked Sep 22, 2026	51-200	146 contacts →
	Partial evidence “Quantum computing is poised to reshape our world by addressing the complex challenges we face today.” Source: RevenueBase Database · checked Sep 22, 2026
13	Quera Computing INC	Partial evidence	Boston, MA, United StatesHQ checked Sep 22, 2026	51-200	142 contacts →
	Partial evidence “Quantum computing is moving from "one day" to "day one." QuEra Computing is leading that transition.” Source: RevenueBase Database · checked Sep 22, 2026
14	ID Quantique	Partial evidence	Geneva, SwitzerlandHQ checked Sep 22, 2026	51-200	121 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 22, 2026
15	Planqc	Partial evidence	Munich, GermanyHQ checked Sep 22, 2026	51-200	116 contacts →
	Partial evidence “planqc's quantum computers store information in individual atoms – nature's best qubits.” Source: RevenueBase Database · checked Sep 22, 2026
16	Atom Computing	Partial evidence	Berkeley, CA, United StatesHQ checked Sep 22, 2026	51-200	96 contacts →
	Partial evidence “We build scalable quantum computers with atomic arrays that empower our customers to achieve computational breakthroughs.” Source: RevenueBase Database · checked Sep 22, 2026
17	Oxford Ionics	Partial evidence	Kidlington, United KingdomHQ checked Sep 22, 2026	51-200	87 contacts →
	Partial evidence “The future is quantum.” Source: RevenueBase Database · checked Sep 22, 2026
18	Universal Quantum	Partial evidence	Brighton, United KingdomHQ checked Sep 22, 2026	51-200	87 contacts →
	Partial evidence “A quantum computer harnesses the fundamental forces that govern the physical world.” Source: RevenueBase Database · checked Sep 22, 2026
19	Quantum Computing INC	Partial evidence	Hoboken, NJ, United StatesHQ checked Sep 22, 2026	201-500	87 contacts →
	Partial evidence “Quantum Computing Inc.(Nasdaq: QUBT) is a quantum optics and integrated photonics company focused on delivering accessible, scalable, and cost-effective quantum machines and…” Source: RevenueBase Database · checked Sep 22, 2026
20	Terra Quantum AG	Partial evidence	St. Gallen, SwitzerlandHQ checked Sep 22, 2026	51-200	85 contacts →
	Partial evidence “Terra Quantum is a leading quantum technology company based in Germany and Switzerland.” Source: RevenueBase Database · checked Sep 22, 2026
21	Quantum Motion	Partial evidence	London, United KingdomHQ checked Sep 22, 2026	51-200	81 contacts →
	Partial evidence “Quantum Motion is developing a revolutionary technology platform; not just a qubit, but a scalable array of qubits fabricated on silicon with a CMOS compatible process.” Source: RevenueBase Database · checked Sep 22, 2026
22	Qilimanjaro Quantum Tech	Partial evidence	Barcelona, SpainHQ checked Sep 22, 2026	51-200	79 contacts →
	Partial evidence “Founded in 2019, we specialize in analog quantum computing, developing full-stack quantum computers based on fluxonium qubits, a robust, long-coherence architecture designed to…” Source: RevenueBase Database · checked Sep 22, 2026
23	Quobly	Partial evidence	Grenoble, FranceHQ checked Sep 22, 2026	51-200	77 contacts →
	Partial evidence “Quobly is a quantum computing company developing silicon-based quantum computers using proven semiconductor manufacturing processes.” Source: RevenueBase Database · checked Sep 22, 2026
24	Silicon Quantum Computing	Partial evidence	Sydney, AustraliaHQ checked Sep 22, 2026	51-200	75 contacts →
	Partial evidence “Silicon Quantum Computing (SQC) is at the forefront of global efforts to deliver a commercial-scale quantum system.” Source: RevenueBase Database · checked Sep 22, 2026
25	DIRAQ	Partial evidence	Sydney, AustraliaHQ checked Sep 22, 2026	51-200	73 contacts →
	Partial evidence “Diraq is building quantum computers based on modified silicon transistors, the technology best suited to achieving utility scale, when value far outweighs cost.” Source: RevenueBase Database · checked Sep 22, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: trapped ion quantum companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names trapped ion quantum companies.
Partial evidence: Its own public description names part of trapped ion quantum companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name trapped ion quantum companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 194 trapped ion quantum companies worldwide

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Trapped ion quantum companies worldwide at a glance

As of Sep 22, 2026

47.5%Verified-email coverage

36.9Average contacts per company

11-50Median size (employees)

2.6%Largest-city concentration · Hyderabad

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Email recency is reported on each country list linked below.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among trapped ion quantum companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for trapped ion quantum companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “trapped ion quantum companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names trapped ion quantum companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among trapped ion quantum companies, and records with no verified work email.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 3,399 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 22, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Trapped ion quantum companies by location

1 lists · largest first

Every Trapped ion quantum companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Trapped ion quantum companies based in the United States40

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names trapped ion quantum companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many trapped ion quantum companies are there worldwide?

RevenueBase identified 194 trapped ion quantum companies worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Quantinuum, headquartered in Broomfield, tops this list with the largest team on record.

Which country has the most trapped ion quantum companies?

The United States leads with 40 companies. Every trapped ion quantum companies list by country and city is linked on this page.

Which city has the most trapped ion quantum companies?

Hyderabad leads with 5 headquartered companies, followed by London (4) and Boston (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 3,399 verified decision-maker contacts tracked across these 194 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 22, 2026.

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About this data

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