Company lists · Data refreshed September 2026

Top 25 Quantum sensing companies based in the United States

RevenueBase identified 122 company matches for quantum sensing companies associated with the United States as of September 2026 and tracks 2,139 professional contacts across them, including 806 with verified work emails. Boston is the largest hub.

This list covers company matches for quantum sensing companies 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 21, 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 21, 2026 How this list was built
122Companies
2,139Contacts tracked
806Verified emails
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The 25 largest quantum sensing companies based in the United States

Ranked by team size
Top 25 of 122 company matches for quantum sensing companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 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 matchCollege Park, MD, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
2Exact matchLouisville, CO, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
3Exact matchBoston, MA, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
4Exact matchHoboken, NJ, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
5Exact matchGolden, CO, United StatesHQ recorded Sep 21, 202651-20063 contacts →

Exact match

“Vescent is the leading provider of ruggedized Optical Clocks, Frequency Combs, Lasers, and Controllers for Quantum 2.0 and adjacent applications.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6Exact matchPleasanton, CA, United StatesHQ recorded Sep 21, 202651-20059 contacts →

Exact match

“Vector Atomic is commercializing quantum technology for applications including GPS-free navigation, telecommunications, and computing.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7Exact matchMountain View, CA, United StatesHQ recorded Sep 21, 202651-20059 contacts →

Exact match

“Applied Physics Systems is a leading manufacturer of sensors and systems based on magnetometers and accelerometers used in energy, defense, industrial, and scientific applications.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8Exact matchBoston, MA, United StatesHQ recorded Sep 21, 202651-20050 contacts →

Exact match

“Teradar is a Boston-based startup pioneering the use of terahertz technology to launch a new generation of life-saving sensors for automotive, defense, and emerging industries.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9Exact matchBozeman, MT, United StatesHQ recorded Sep 21, 202611-5038 contacts →

Exact match

“Montana Instruments manufactures high-precision electrical, optical, and cryogenic products for quantum computing, quantum education, quantum networking, and quantum materials…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10Exact matchPalo Alto, CA, United StatesHQ recorded Sep 21, 202611-5038 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11Exact matchWest Palm Beach, United StatesHQ recorded Sep 21, 202611-5038 contacts →

Exact match

“Scientific Instruments (SI), an ISO 9001 certified company, is one of the world leaders in design and manufacturing of measurement systems for cryogenic science applications.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12Exact matchRedmond, WA, United StatesHQ recorded Sep 21, 202611-5034 contacts →

Exact match

“Paroscientific is the world leader in the field of precision pressure and seismic measurements.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13Exact matchFairport, NY, United StatesHQ recorded Sep 21, 202611-5034 contacts →

Exact match

“Sydor Technologies is a global leader in the design, development, manufacturing, and commercialization of complex measurement technology solutions.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchPasadena, CA, United StatesHQ recorded Sep 21, 202611-5030 contacts →

Exact match

“OEwaves is a manufacturer of the lowest noise, compact lasers available on the market.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15Exact matchTorrance, CA, United StatesHQ recorded Sep 21, 202611-5028 contacts →

Exact match

“IOS develops cutting edge-technologies in optical sensing and instrumentation.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16Exact matchSouthborough, MA, United StatesHQ recorded Sep 21, 202611-5028 contacts →

Exact match

“Since 1956, Block Engineering has developed chemical detection systems for safety, security, and environmental monitoring applications.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17Exact matchBoston, MA, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
18Exact matchRedmond, WA, United StatesHQ recorded Sep 21, 202611-5024 contacts →

Exact match

“About LTC Laser Techniques Company, LLC (LTC) is a privately held company that was formed in January of 2001 by James and Laura Doyle.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19Exact matchSan Marcos, TX, United StatesHQ recorded Sep 21, 202611-5023 contacts →

Exact match

“Quantum Materials Corp (QMC) is a world leader in the design and manufacturing of high-performance nanomaterials.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20Exact matchPasadena, CA, United StatesHQ recorded Sep 21, 202611-5023 contacts →

Exact match

“We invented the Quanta Image Sensor (QIS), marking the dawn of a new era in imaging.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21Exact matchBoulder, CO, United StatesHQ recorded Sep 21, 202611-5022 contacts →

Exact match

“FieldLine Medical has developed a novel non-invasive functional brain imaging device called HEDscan using our proprietary quantum sensor technology.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22Exact matchBrooklyn, United StatesHQ recorded Sep 21, 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 21, 2026 · View company records in RevenueBase
23Exact matchCambridge, MA, United StatesHQ recorded Sep 21, 202611-5020 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24Exact matchTucson, AZ, United StatesHQ recorded Sep 21, 202611-5016 contacts →

Exact match

“EPS: Enhanced Photodetection Spectroscopy”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25Exact matchPlymouth, MI, United StatesHQ recorded Sep 21, 202611-5014 contacts →

Exact match

“Quantum Opus manufactures world-leading superconducting nanowire systems which provide high detection efficiency, low-noise, ultra-high counting rates, in a compact system.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

Showing 25 of 122 quantum sensing companies based in the United States

See the full list, filter by size, metro and specialty, and access 806 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Quantum sensing companies based in the United States at a glance

As of Sep 21, 2026
37.7%Verified-email coverage
17.5Average contacts per company
1-10Median size (employees)
4.1%Largest-city concentration · Boston
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
66
11-50
42
51-200
9
201-500
3
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 122 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 sensing companies” 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 806 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 21, 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 sensing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many quantum sensing companies are there based in the United States?

RevenueBase identified 122 company matches for quantum sensing companies 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?

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

Which city has the most quantum sensing companies?

Boston leads with 5 company records, followed by Cambridge (5) and Boulder (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 806 professional contacts with verified work emails tracked across these 122 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 21, 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.