Quantum Computing Startups

Kvantify develops software that runs on both quantum computers and classical computing architectures (CPU/GPU) to solve chemistry and biology problems for molecular and drug discovery. Its algorithms distribute calculations across quantum and classical compute resources in high-performance computing environments to accelerate the discovery of disease-curing molecules.

1 investor

LT Photonics develops ultra-low-loss, detachable fibre-to-chip optical connections that avoid micro-optics, active alignment, and epoxy, targeting scalable manufacturing. Its technology serves silicon photonic applications for quantum computing and AI hardware companies.

1 investor

Loop AI Group is a research-driven applied AI lab that builds enterprise AI agents and orchestration tools, including the Loop Q cognitive platform for training and deploying custom Small Language Models and the Loop AI Agents Orchestra, a no-code control center for managing AI agents across vendors and integrating with legacy systems. The company also runs Loop Quantum AI Labs, which develops quantum-native AI for modeling complex systems, and serves large organizations including Fortune 100 enterprises.

1 investor

Marqov provides an orchestration and workflow engine for running quantum-classical workloads across QPU, GPU, and CPU backends with reproducible runs, durable state, and observability. It targets platform and DevOps teams at HPC centers and enterprises adding quantum to existing infrastructure, offering a Python SDK and CLI with multi-vendor backend support (IBM, AWS Braket, Azure, NVIDIA).</parameter> <parameter name="founders">[]

1 investor

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.

1 investor

Miraex develops a thin-film lithium niobate photonic integrated circuit (PIC) platform for quantum interconnectivity, targeting distributed quantum sensing, distributed quantum computing, and entangled quantum networks. It licenses patented electro-optical transducer designs to OEMs and provides microwave-to-optical transduction and photon entanglement technology from its base near EPFL in Switzerland.

1 investor

Modelabs develops robust, continuous, remote real-time chemical sensors that use micron-scale quantum technology to reflect light through liquid samples 10,000 times for lab-grade sensitivity. Its sensors, including total phosphorus and ammonia sensors, serve markets such as environmental monitoring, precision aquaculture, water process control, and defence and security.

1 investor

Moth Quantum develops quantum computing applications targeting the media, entertainment, and creative industries, positioning itself as a pioneer in consumer-facing quantum technology.

1 investor

Munich Quantum Instruments develops Superconducting Nanowire Single Photon Detectors (SNSPDs) built on a patented architecture for scalability, performance, and speed. The detectors are aimed at industrial quantum technology applications.

1 investor

NodeQuantum provides software for modelling, optimizing, and emulating quantum-safe networks and for designing quantum computing networks, including post-quantum encryption and validation of quantum key distribution hardware. It serves telecom operators, cloud providers, data centers, and businesses transitioning to quantum-safe communications.

1 investor

NodeX Cloud develops decentralized cloud storage infrastructure secured with post-quantum cryptography (Kyber1024/ML-KEM) and Reed-Solomon erasure coding, offering an S3-compatible API and EU data sovereignty. It targets EU-regulated enterprises in healthcare, defense, banking, and government subject to GDPR, NIS2, and DORA.

1 investor

nOhm Devices builds highly efficient cryogenic electronics for quantum computers and sensors, enabling in-situ integration of qubits and quantum sensors with control and readout circuits. Its components are aimed at scaling up quantum systems.

1 investor

OQC builds quantum computers ("Application Optimised Compute") and operates as Europe's first Quantum-Compute-as-a-Service provider, deploying quantum systems into commercial and sovereign data centres and via cloud and APIs. It serves industries such as finance, national security, pharmaceuticals, and advanced materials.

1 investor

Parkway is a venture capital firm that partners with and backs founders building companies in areas such as artificial intelligence, simulation, quantum technology, data, and complex engineering.

1 investor

Peak Quantum develops error-protected superconducting quantum processing units (QPUs) designed for fault tolerance at the hardware level, reducing the need for active quantum error correction and the number of physical qubits required. The company targets scalable, industrial-grade quantum computing and works with investors, integrators, and researchers.

1 investor

Perimeter Institute is a center for theoretical physics that conducts research and offers training programs and public outreach initiatives. It brings together researchers to study topics such as space, time, matter, and quantum technologies.

1 investor

Phantom Photonics develops quantum 3D remote sensing technology, including specialized sensors for undersea asset monitoring with defense and civilian applications. Spun out of the University of Waterloo, the company builds quantum coherence systems designed for noise resilience and resistance to blinding attacks.

1 investor

Phaseshift develops meta-optical systems, using metasurface research to build integrated photonics and advanced optical components for next-generation optical systems. The company draws on expertise in quantum optics, nanophotonics, and optical engineering, with operations in India.

1 investor

Photon Queue develops quantum memory devices using linear optics technology for photon storage. The company serves applications requiring practical quantum memory solutions in quantum computing and related fields.

1 investor

Planckian develops foundational technology for large-scale quantum computers, building a quantum processor that combines superconducting circuits with a new approach to qubit control for scalability. The company operates in the quantum computing hardware space.

1 investor

Q99 offers a quantum-classical AI platform that acts as a middle layer to connect fragmented enterprise data, recover lost context across silos, and produce probabilistic predictions for real-time decision-making. It targets enterprises in sectors such as pharma, aerospace, national security, logistics/supply chain, finance, and energy.

1 investor

Qambria develops an HPC scale-out architecture that combines massively parallel classical systems with quantum computers, targeting the boundary between classical high-performance computing and quantum systems. Its technology supports hybrid algorithms and computing workflows with low latency and high throughput for integration into existing digital infrastructure.

1 investor

QANplatform is a Layer 1 blockchain platform that lets developers and enterprises build quantum-resistant smart contracts and Web3 applications in any programming language. It offers Ethereum/EVM compatibility, cloud deployment integrations, and quantum-resistant cryptography for both public and private blockchain use.

1 investor

qBraid provides a cloud platform for quantum computing that includes a browser-based JupyterLab IDE, an open-source SDK, and a runtime that runs programs across 20+ QPUs and simulators from 11 providers through one API. It also offers qBook, an interactive quantum curriculum with autograded labs and university partnerships, serving students, researchers, and enterprise teams.

1 investor