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Our Portfolio

Quantum Catalyzer creates companies that transform frontier research into technologies with global impact. Each venture begins in our labs and grows with the support of shared infrastructure, intellectual property, and expertise.

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Quantum imaging for the future of electronics.

EuQlid employs advanced Quantum Diamond Microscope technology and advanced AI to visualize magnetic activity at the smallest scale. From microchips to batteries, EuQlid reveals details that make technology faster, more efficient, and more reliable.

Founded:2022 (incubated at Q-Cat)
Spin-out:2024
Leadership:Sanjive Agarwala (CEO)
David Glenn, Ph.D. (CTO)
Location:College Park, Maryland
Visit EuQlid →
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Quantum technology engineered for extremes.

ArQ Sensors designs rugged, ultra-compact, low-power quantum sensors built to operate where conventional tools fail. From aerospace and defense to energy and maritime environments, ArQ Sensors extends the reach of quantum technology into the harshest conditions.

Founded:2025 (incubated at Q-Cat)
Spin-out:In formation
Leadership:Ronald Walsworth, Ph.D.
Amanda Stein, Ph.D.
Status:Early stage, in research portfolio
Visit ArQsensors →
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The Quantum Diamond Microscope for Life Sciences

Our next company (coming soon) will leverage groundbreaking quantum sensing and imaging technology for life sciences. With high sensitivity and spatial resolution, this powerful tool will advance research in neuroscience, cellular biology, and medical diagnostics.

Project Start:2024
Formation:Q1 2026
Leadership:Ronald Walsworth, Ph.D.
Status:Seeking funding for pre-company development
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In the Pipeline

Some concepts at Q-Cat are in early incubation, with public launches to follow.

XerXes Technologies

Quantum sensors for extreme environments (concept lineage informing ArQ Sensors).

Q4ML

Quantum data for machine learning.

Patents & Intellectual Property

Our companies are built on a foundation of pioneering intellectual property, protecting the core technologies that drive quantum sensing and imaging forward.

US 12,276,624
Systems and Methods for Quantum Sensing with Signal Amplification by Reversible Exchange • UMD/Harvard/NC State • 2025
US 11,940,399
Systems and Methods for Quantum Sensing Using Solid-State Spin Ensembles • UMD/Harvard • 2024
US 11,519,989
High-Resolution Magnetic Field Fingerprinting of Integrated Circuit Activity with a Quantum Diamond Microscope (QDM) • Harvard • 2022
US 11,156,674
Control and cancellation of spin bath induced dephasing in solid-state ensembles • Harvard • 2021
US 10,928,320
Integrated mounting solution for solid-state spin sensors used for bulk detection and imaging • Harvard • 2021
US 10,901,062
Synchronized-readout for narrowband detection of time-varying electromagnetic fields using solid state spins • Harvard • 2021
US 10,545,200
Simultaneous vector magnetometry with nitrogen vacancy centers in diamond or other solid-state spin sensors • Harvard • 2020
US 10,101,423
Creation of nearly-equivalent nuclear spin singlet states using spin-lock induced crossing • Harvard • 2018
US 9,939,510
Use of nuclear spin impurities to suppress electronic spin fluctuations and decoherence in composite solid-state spin systems • Harvard • 2018
US 9,891,297
Magnetic sensing and imaging using interactions between surface electron spins and solid-state spins • Harvard • 2018
US 9,829,557
Use of nuclear spin impurities to suppress electronic spin fluctuations and decoherence in composite solid-state spin systems • Harvard • 2017
US 9,804,239
Nuclear singlet states as a contrast mechanism for NMR spectroscopy • Harvard • 2017
US 9,784,804
Dynamic decoupling of spin ensembles in solid-state magnetometry • Harvard • 2017
US 9,720,067
Use of nuclear spin impurities to suppress electronic spin fluctuations and decoherence in composite solid-state spin systems • Harvard • 2017
US 9,658,301
Absorption-based detection of spin impurities in solid-state spin systems • Harvard • 2017
US 9,541,512
Multi-color nanoscale imaging based on nanoparticle cathodoluminescence • Harvard • 2017
US 9,157,859
Efficient fluorescence detection in solid-state spin systems • Harvard • 2015
US 8,947,080
High-sensitivity solid-state magnetometer • Harvard • 2015
US 8,547,090
Electronic Spin Based Enhancement of Magnetometer Sensitivity • Harvard • 2013

Each filing advances the performance and scalability of NV-diamond quantum sensing, forming the IP backbone behind QDM.IO, EuQlid, and future companies incubated at Q-Cat.