Quantum Computing Startups

Wultra provides passwordless multi-factor authentication and post-quantum cryptography solutions for financial institutions, including banks, fintechs, and payment providers. The platform offers mobile and web login, payment signing, and compliance with regulations such as PSD2/PSD3 and DORA.

3 investors

Xairos develops a space-based quantum timing architecture for global position, navigation, and timing services with sub-nanosecond accuracy, serving transportation, telecommunications, power grids, financial systems, and data centers.

3 investors

Zero Point Cryogenics manufactures dilution refrigerators and cryogenic systems for quantum research, academic institutions, and industrial partners. Based in Edmonton, Canada, the company designs custom cryostats with advanced features including remote access, precision engineering, and integrated data acquisition capabilities.

3 investors

zerothird builds entanglement-based quantum key distribution (QKD) cryptography to protect critical infrastructure, generating identical keys by distributing entangled photons to endpoints so any eavesdropping is detectable. Its approach is designed to resist both classical and quantum attacks.

3 investors

A venture fund focused on quantum-inspired technology.

2 investors

Cascade is an AI coordination platform for architecture, engineering, and construction firms that automates business development by analyzing unstructured project opportunities, scoring them for firm fit, and streamlining the pursuit-to-delivery cycle. The platform learns from each customer interaction to improve recommendations and turns the construction industry's relationship-driven sales process into a systematic, data-driven approach.

2 investors

QDi.AC is a quantum diamond atomic clock component that provides frequency reference and timing stability for electronic systems requiring long-term clock accuracy without external signals. It targets precision timing applications in GPS receivers, navigation systems, telecommunications infrastructure, and autonomous sensor networks.

2 investors

Aquark Technologies develops miniaturised, cold-atom-based quantum hardware for quantum sensing, navigation, and timing, designed to operate reliably in real-world conditions across air, sea, and underwater environments. The company serves critical infrastructure and defence sectors and is working toward a sovereign European quantum supply chain.

2 investors

Big Sur Ventures is an early-stage venture capital firm that has invested since 2012 in technology startups from pre-seed through Series A. It backs companies in internet/software ("Power of Internet") and deep tech areas such as quantum, AI, materials, photonics, microelectronics, and nanotechnology.

2 investors

A company addressing quantum computing security threats by helping organizations protect long-term sensitive information and intellectual property.

2 investors

CogniFrame develops quantum computing and machine learning solutions for financial applications. The company applies quantum technology and data science to computational finance and investment management.

2 investors

CyberRidge is a deep-tech cybersecurity company that uses patented photonic encryption to protect sensitive data from interception and surveillance as it travels through public network infrastructure. The technology prevents data from being recorded over optical fiber, eliminating offline hacking and quantum-era decryption risks.

2 investors

Diamond Quanta develops the Adamantine Platform, an engineered-diamond interface technology for optical, thermal, semiconductor, photonic, and quantum systems. The company serves semiconductor, aerospace/defense, and consumer electronics industries with diamond-based solutions for power electronics and quantum devices.

2 investors

eleQtron develops and operates trapped-ion quantum computers using its MAGIC (Magnetic Gradient Induced Coupling) technology, which controls qubits with microwave technology rather than lasers. It targets commercial and research applications such as materials research, logistics, pharmaceuticals, and financial risk management, serving companies, institutions, and scientific organizations, and is a German quantum computing hardware manufacturer.

2 investors

EuQlid builds magnetic imaging technology that uses quantum defects in diamond to non-invasively map buried electrical currents and identify connectivity defects in materials and devices. Its Quantum Diamond Microscope serves semiconductor advanced packaging, silicon 3D architectures, and energy storage/battery applications for metrology and defect analysis.

2 investors

FirstQFM develops proprietary foundation models for quantum computing, aiming to improve the scaling and performance needed to derive business and scientific value from quantum systems. The company is based in Stockholm and launched in 2025 following an incubation period.

2 investors

Foqus Technologies develops software that uses quantum algorithms and AI to enhance MRI scans, aiming to increase magnetic resonance sensitivity, shorten scan times, and improve image quality without hardware upgrades. Its FDA 510(k) cleared and Health Canada licensed solution targets medical imaging for diagnosis and treatment monitoring.

2 investors

Global Brains is a Japanese venture capital firm that invests across seed to late-stage startups, with particular focus on deep tech sectors including AI, climate tech, and healthcare alongside enterprise and commerce businesses.

2 investors

Horizen Labs develops privacy and verification systems built on applied cryptography, using zero-knowledge proofs and trusted execution environments (TEEs) for high-stakes, high-performance environments. It also offers cryptographic protocol design, end-to-end product engineering, and post-quantum security consultancy.

2 investors

ID Quantique develops quantum technologies for cybersecurity, quantum networking, and sensing applications. The company provides quantum-safe communication systems, single-photon generation and detection devices, and quantum internet infrastructure for enterprises, governments, and research institutions.

2 investors

Ki3 Photonics develops hardware and software modules for quantum photonics networks, enabling scalable deployment through components that integrate with standard optical fiber and Ethernet infrastructure.

2 investors

LQUOM develops long-distance quantum communication technology and quantum repeaters to enable theoretically unhackable quantum internet for sectors including finance, telemedicine, and defense. The company holds all core element technologies required for quantum repeaters, including quantum light sources, quantum memory, and frequency stabilization.

2 investors

Mesa Quantum develops chip-scale quantum sensors — including atomic clocks, gyroscopes, magnetometers, and gravimeters — for industrial and defense applications, with a focus on Alternative Position, Navigation, and Timing (Alt-PNT) as a GPS backup. It serves product developers, industry partners, and defense customers needing low size, weight, and power measurement hardware.

2 investors

MicroAlign develops micro-actuator technology for high-precision fiber array alignment, enabling nanometer-scale positioning of optical fibers to photonic chips. The company serves applications in quantum photonic computing, data communication, and AI computing.

2 investors