Company lists · Data refreshed September 2026

Top 25 Quantum computing chip manufacturers based in the United States

Name: Quantum computing chip manufacturers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 76 companies tracked

RevenueBase identified 76 quantum computing chip manufacturers headquartered in the United States as of September 2026 and tracks 4,148 professional contacts across them, including 2,064 with verified work emails. Palo Alto is the largest hub.

This list covers quantum computing chip manufacturers headquartered in the United States, 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 17, 2026.

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 17, 2026 86% judged on-target in blind review

76Companies

4,148Contacts tracked

2,064Verified emails

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The 25 largest quantum computing chip manufacturers based in the United States

Ranked by team size

Top 25 of 76 quantum computing chip manufacturers based in the United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to quantum computing chip manufacturers: 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	Skywater Technology	Partial evidence	Bloomington, MN, United StatesHQ checked Sep 17, 2026	501-1,000	674 contacts →
	Partial evidence “SkyWater (NASDAQ: SKYT) is a U.S-based semiconductor manufacturer and a DMEA-accredited Category 1A Trusted Supplier.” Source: RevenueBase Database · checked Sep 17, 2026
2	Quantinuum	Partial evidence	Broomfield, CO, United StatesHQ checked Sep 17, 2026	201-500	598 contacts →
	Partial 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 17, 2026
3	IONQ	Strong evidence	College Park, MD, United StatesHQ checked Sep 17, 2026	1,001-5,000	574 contacts →
	Strong 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 17, 2026
4	Psiquantum	Strong evidence	Palo Alto, CA, United StatesHQ checked Sep 17, 2026	201-500	359 contacts →
	Strong evidence “Quantum computing will be a world-changing technology with the potential to unlock powerful advances in medicine, energy, finance and beyond.” Source: RevenueBase Database · checked Sep 17, 2026
5	Infleqtion	Strong evidence	Louisville, CO, United StatesHQ checked Sep 17, 2026	201-500	211 contacts →
	Strong 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 17, 2026
6	Rigetti Computing	Strong evidence	Berkeley, CA, United StatesHQ checked Sep 17, 2026	51-200	171 contacts →
	Strong evidence “Rigetti is a pioneer in full-stack quantum computing.” Source: RevenueBase Database · checked Sep 17, 2026
7	Efinix, INC	Indirect evidence	Cupertino, CA, United StatesHQ checked Sep 17, 2026	51-200	156 contacts →
	Indirect evidence “Our mission is to drive the future of AI-driven applications with our FPGAs.” Source: RevenueBase Database · checked Sep 17, 2026
8	Quera Computing INC	Strong evidence	Boston, MA, United StatesHQ checked Sep 17, 2026	51-200	142 contacts →
	Strong evidence “Quantum computing is moving from "one day" to "day one." QuEra Computing is leading that transition.” Source: RevenueBase Database · checked Sep 17, 2026
9	Atom Computing	Partial evidence	Berkeley, CA, United StatesHQ checked Sep 17, 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 17, 2026
10	Quantum Computing INC	Strong evidence	Hoboken, NJ, United StatesHQ checked Sep 17, 2026	201-500	87 contacts →
	Strong 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 17, 2026
11	Vector Atomic	Strong evidence	Pleasanton, CA, United StatesHQ checked Sep 17, 2026	51-200	59 contacts →
	Strong evidence “Vector Atomic is commercializing quantum technology for applications including GPS-free navigation, telecommunications, and computing.” Source: RevenueBase Database · checked Sep 17, 2026
12	Quantum Circuits, INC	Strong evidence	New Haven, CT, United StatesHQ checked Sep 17, 2026	201-500	58 contacts →
	Strong evidence “Quantum Circuits, now D-Wave, is developing a full-stack gate-model quantum computing platform using superconducting devices and a modular, robust, and scalable architecture.” Source: RevenueBase Database · checked Sep 17, 2026
13	Montana Instruments	Strong evidence	Bozeman, MT, United StatesHQ checked Sep 17, 2026	11-50	38 contacts →
	Strong evidence “Montana Instruments manufactures high-precision electrical, optical, and cryogenic products for quantum computing, quantum education, quantum networking, and quantum materials…” Source: RevenueBase Database · checked Sep 17, 2026
14	QC Ware Corp	Strong evidence	Palo Alto, CA, United StatesHQ checked Sep 17, 2026	11-50	38 contacts →
	Strong evidence “QC Ware is a quantum computing software company building enterprise solutions.” Source: RevenueBase Database · checked Sep 17, 2026
15	SEEQC	Strong evidence	Elmsford, NY, United StatesHQ checked Sep 17, 2026	11-50	34 contacts →
	Strong evidence “SEEQC is developing the first digital quantum computing platform for global businesses.” Source: RevenueBase Database · checked Sep 17, 2026
16	Strangeworks	Partial evidence	Austin, TX, United StatesHQ checked Sep 17, 2026	11-50	31 contacts →
	Partial evidence “Strangeworks is an unconventional computing software company based in Austin, TX.” Source: RevenueBase Database · checked Sep 17, 2026
17	Nicslab	Strong evidence	Palo Alto, CA, United StatesHQ checked Sep 17, 2026	11-50	23 contacts →
	Strong evidence “Nicslab, a fabless chip company, developing electronic and photonic integrated circuits for future optical solutions in data centers, AI, and quantum computing.” Source: RevenueBase Database · checked Sep 17, 2026
18	Atlantic Quantum	Partial evidence	Cambridge, MA, United StatesHQ checked Sep 17, 2026	11-50	20 contacts →
	Partial evidence “Atlantic Quantum is now part of Google Quantum AI.” Source: RevenueBase Database · checked Sep 17, 2026
19	Eeroq Corporation	Partial evidence	Chicago, IL, United StatesHQ checked Sep 17, 2026	11-50	16 contacts →
	Partial evidence “EeroQ is building a next-generation quantum computer using the technology of today.” Source: RevenueBase Database · checked Sep 17, 2026
20	Quoherent	Partial evidence	Winston Salem, NC, United StatesHQ checked Sep 17, 2026	1-10	14 contacts →
	Partial evidence “Quoherent's mission is to deploy the world’s first high-fidelity, scalable quantum processors on mobile platforms.” Source: RevenueBase Database · checked Sep 17, 2026
21	MEMQ	Strong evidence	Chicago, United StatesHQ checked Sep 17, 2026	11-50	11 contacts →
	Strong evidence “memQ is building the hardware and software foundation for distributed quantum computing.” Source: RevenueBase Database · checked Sep 17, 2026
22	Anametric, INC	Strong evidence	Austin, TX, United StatesHQ checked Sep 17, 2026	1-10	9 contacts →
	Strong evidence “Anametric is developing new technologies and devices for chip scale quantum photonics, with a focus on cybersecurity.” Source: RevenueBase Database · checked Sep 17, 2026
23	Automatski	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 17, 2026	11-50	9 contacts →
	Partial evidence “Automatski is a Computing Firm at its core.” Source: RevenueBase Database · checked Sep 17, 2026
24	Applied Quantum Software	Partial evidence	San Mateo, CA, United StatesHQ checked Sep 17, 2026	1-10	5 contacts →
	Partial evidence “AQS is building FabriQ, an AI-driven quantum platform for enterprise finance.” Source: RevenueBase Database · checked Sep 17, 2026
25	Dikan Quantum Corporation	Strong evidence	Austin, TX, United StatesHQ checked Sep 17, 2026	11-50	5 contacts →
	Strong evidence “Dikan Quantum Corporation (fka Dikan LLC) is a quantum computing software company that has built an industry agnostic Quantum Learning Model.” Source: RevenueBase Database · checked Sep 17, 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: quantum computing chip manufacturers. 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 quantum computing chip manufacturers.
Partial evidence: Its own public description names part of quantum computing chip manufacturers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name quantum computing chip manufacturers. 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 76 quantum computing chip manufacturers based in the United States

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Quantum computing chip manufacturers based in the United States at a glance

As of Sep 17, 2026

49.8%Verified-email coverage

54.6Average contacts per company

11-50Median size (employees)

9.2%Largest-city concentration · Palo Alto

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 76 companies.

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 quantum computing chip manufacturers, 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.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “quantum computing chip manufacturers”. 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 quantum computing chip manufacturers), 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 quantum computing chip manufacturers, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
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, 2,064 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 17, 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.

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 quantum computing chip manufacturers, 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 quantum computing chip manufacturers are there based in the United States?

RevenueBase identified 76 quantum computing chip manufacturers headquartered in the United States 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?

Skywater Technology, headquartered in Bloomington, tops this list with the largest team on record.

Which city has the most quantum computing chip manufacturers?

Palo Alto leads with 7 headquartered companies, followed by Boston (5) and Chicago (4).

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 2,064 verified decision-maker contacts tracked across these 76 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 17, 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.