Quantum Computing Startups

VS2 develops patented and patent-pending computer security technologies, including Kaleidoscope Secure Channel (KSC), an encryption method designed to resist quantum attacks, and Extended Resilience Architecture (xRA), which uses consensus across multiple application replicas to detect and correct code corruption and hardware faults. It targets organizations running mission- and life-critical information systems that require secure and fault-tolerant computing.

1 investor

WaveRyde Instruments develops quantum sensors that use atoms in cesium vapor to measure radio frequency electromagnetic waves across a broad frequency range from sub-GHz to THz. The sensors are self-calibrated, electromagnetically transparent, and applicable to various high-frequency measurement applications.

1 investor

xahive develops xamessenger, an on-device encrypted, post-quantum cryptography (PQC) secure messaging and file-sharing platform aligned with NIST quantum-resistant standards, along with cybersecurity audit, governance, and workforce training services. It serves businesses including regulated sectors such as defense, health, finance, critical infrastructure, agriculture, and manufacturing, with North American and EU regulatory compliance.

1 investor

Xen Quantum develops silicon-photonics-based quantum key distribution (QKD) modules that integrate with existing telecom rack equipment and fibre-optic infrastructure to secure critical networks. Its CMOS-compatible hardware uses discrete-variable QKD to provide encryption keys secured by quantum physics rather than computational assumptions.

1 investor

Xiphera develops hardware-based cryptographic IP cores for FPGA and ASIC platforms, offering post-quantum and traditional cryptography for secure communication, data protection, and authentication. Its products serve organizations with high security requirements across industries, with all design and development carried out in Finland.

1 investor

Zero Point Cryogenics builds customized dilution refrigerators and cryostats, including its Model L and Continuous Cold systems, with features such as patented phase separation refrigeration, superconducting magnet support, and Python-based backend software. The systems are aimed at researchers working in cryogenic and quantum technology.

1 investor

SDT Inc. is a Korean quantum technology company working across quantum computing, quantum cloud, quantum communication, and quantum sensing, including development of a full-stack quantum computer and quantum-AI hybrid computing systems. It serves industrial and public-sector customers and provides quantum precision measurement and control equipment, cryogenic hardware, and cloud-based quantum computing services.

1 investor

Fixstars provides high-performance computing services, software acceleration, and optimization for technologies such as multicore processors, GPUs, FPGAs, and quantum computing. The company works with enterprises to improve the speed and efficiency of their computing workloads.

1 investor

Entrokey Labs works on securing AI infrastructure against quantum computing threats, positioning itself in the AI security and post-quantum security space.

0 investors

MagiQ builds quantum-enabled communication and sensing systems, including precision seismic sensors, adaptive interference mitigation, spectrum recovery, and quantum cryptography. Its products serve defense, energy, and telecom organizations operating in challenging environments.

0 investors

Quantum Catalyzer (Q-Cat) is a deep tech venture builder that turns quantum research into commercial technologies and startups, working with government and industry partners. Its first product is the Quantum Diamond Microscope for wide-field magnetic field imaging, now sold through its portfolio company EuQlid.

0 investors

Quantum Corridor operates a quantum-ready fiber network offering quantum-safe connectivity, precision timing, and quantum compute access for enterprises, universities, data centers, and government agencies. Founded in 2022, it runs across the Chicago and Northwest Indiana corridor with sites in Hammond (IN), Chicago, and Naperville (IL).

0 investors