AOSense

AOSense is a US quantum sensing company founded in 2004 as a Stanford University spinout by Brenton Young and Mark Kasevich that develops atom-optic quantum sensors for inertial navigation, precision timing, and gravity measurement, commercializing cold atom interferometry technology for compact gravimeters, accelerometers, gyroscopes, and atomic clocks that achieve laboratory-grade performance in portable field-deployable systems, serving DARPA, NASA, Air Force, Army, Navy, and intelligence community with quantum sensors for geophysical surveying, precision navigation, resource exploration, and underground monitoring applications that leverage laser-cooled atoms as ultra-precise test masses for measuring gravitational and inertial forces.

Atomionics

Atomionics is a Singapore-based quantum sensing company founded in 2018 that develops portable quantum gravimeters and inertial sensors using cold atom interferometry for precision gravity measurements, providing quantum sensors for geophysical surveys, mineral exploration, underground infrastructure detection, and navigation applications where extremely precise gravity and acceleration measurements are required, serving industries including oil and gas, mining, defense, and civil engineering with quantum-enhanced sensing capabilities.

Company Information

• Founded: 2018
• Country: Singapore
• Website: https://atomionics.com
• Categories: sensing

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Muquans

Muquans is a French quantum sensing company founded in 2011 as a spinout from Observatoire de Paris and Institut d’Optique that became the first company to exploit laser-cooled quantum manipulation techniques on an industrial scale, developing the world’s first commercial Absolute Quantum Gravimeter achieving µGal-level precision through cold rubidium atom interferometry, along with atomic clocks, frequency transfer systems, and high-performance laser systems, acquired by iXblue in 2021 to create a European leader in photonics and quantum technologies, serving geophysics, oil and mineral exploration, civil engineering, and navigation markets with quantum sensors that measure gravitational acceleration changes to detect subsurface mass variations.

QLM Technology

QLM Technology is a UK quantum sensing company founded in 2020 that develops quantum gas cameras and ultracold atom imaging systems for quantum research and quantum sensing applications, providing specialized detection and imaging equipment that enables researchers to visualize and characterize quantum states in ultracold atomic gases, supporting quantum computing research, quantum simulation experiments, and fundamental physics investigations that require precise detection and measurement of quantum many-body systems and quantum phase transitions in atomic gases at nanokelvin temperatures.

Qnami

Qnami is a Swiss quantum sensing company founded in 2016 that develops quantum sensing and microscopy systems using nitrogen-vacancy (NV) centers in diamond for ultra-precise magnetic field measurements, providing quantum sensors and scanning probe microscopes that enable researchers and industries to perform nanoscale imaging and sensing applications in materials science, life sciences, and nanotechnology with unprecedented sensitivity and resolution for magnetic field detection, temperature sensing, and quantum state characterization.

QuantumDiamonds

QuantumDiamonds is a German quantum sensing company founded in 2022 that specializes in diamond-based quantum sensing technologies using nitrogen-vacancy centers in synthetic diamond crystals for precision magnetic field detection, electric field sensing, and quantum metrology applications, providing quantum sensors for research institutions and industries requiring ultra-sensitive measurements in materials characterization, medical diagnostics, and fundamental physics research where traditional sensors cannot achieve the required sensitivity and precision.

Company Information

• Founded: 2022
• Country: Germany
• Website: https://quantumdiamonds.de
• Categories: sensing

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SBQuantum

SBQuantum is a Canadian quantum sensing company founded in 2017 that develops quantum magnetic sensors and magnetometry systems using optically pumped magnetometers and diamond NV centers for ultra-sensitive magnetic field detection, providing quantum sensors for geophysical surveys, medical diagnostics, security screening, and fundamental physics research applications that require femtotesla-level magnetic field sensitivity, serving research institutions, mining companies, and security organizations with quantum magnetometers that can detect buried objects, monitor brain activity, and measure weak magnetic signals in challenging environments where traditional sensors lack sufficient sensitivity.

Vector Atomic

Vector Atomic is a US quantum sensing company founded in 2018 that develops quantum inertial navigation systems using cold atom interferometry for GPS-free navigation applications, creating compact atomic gyroscopes, accelerometers, and magnetometers that provide precision navigation capabilities for defense, aerospace, and commercial applications where GPS signals are unavailable or compromised, leveraging laser-cooled atoms to achieve navigation-grade performance in portable quantum sensors that enable autonomous vehicle navigation, underwater navigation, and space exploration missions requiring ultra-precise inertial measurements without external reference signals. On October 7, 2025, Vector Atomic was acquired by IonQ in an all-stock transaction, expanding IonQ’s capabilities from quantum computing into quantum sensing, timing, and navigation markets. As part of IonQ, Vector Atomic’s 75+ team members and technology portfolio including precision atomic clocks, inertial sensors, and over $200 million in government contracts now support IonQ’s quantum technology ecosystem.