Quantum Computing Startups
249 companies tagged Quantum Computing, with their investors and founders.
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
MicroAlign manufactures fiber arrays with actively aligned fiber cores to achieve high pitch accuracy and low-loss coupling between optical fibers and photonic integrated chips. Its products serve AI data centers, silicon photonics, optical interconnects, and quantum computing applications.
2 investors
2 investors
MQS builds Cebule, a platform combining quantum chemistry calculations and machine learning pipelines to predict molecular properties and design experiments for R&D teams. It offers a visual dashboard over 200M+ molecules, a Python SDK, HPC compute nodes, and an AI research agent serving biopharmaceutical, materials, and chemistry researchers in academia and industry.
2 investors
NanoQT develops scalable, networked quantum computing based on proprietary nanofiber cavity QED technology that uses neutral atoms for quantum information processing. The company operates across Japan and the USA and conducts R&D on quantum computational units and related atomic control systems.
2 investors
Nexus Photonics develops advanced photonic integration technology to scale breakthrough systems for quantum, sensing, and communications applications. Building on photonic integration research from UC Santa Barbara, the company aims to turn prototype technologies into mass-deployable systems.
2 investors
Nimbix provides a supercomputing-as-a-service platform that enables data scientists, engineers, and researchers to access high-performance computing, AI/ML, and quantum computing applications without infrastructure constraints. The platform offers on-premises, cloud, or hybrid deployment options through its JARVICE service and HyperHub application catalog.
2 investors
Nomad Atomics develops quantum sensing technologies for applications across industries. The company commercializes quantum science solutions derived from research in quantum gravimetry and accelerometry.
2 investors
OrangeQS provides automated testing and characterization equipment and software for quantum chips with several to hundreds of qubits. The company serves quantum hardware developers in industry and research with turnkey solutions that accelerate the quantum chip development cycle.
2 investors
Oxford Ionics develops trapped-ion quantum computers using Electronic Qubit Control to integrate qubit trapping and control onto standard semiconductor chips. Its quantum processors are compact, field-upgradeable, data-centre ready, and integrate with computing stacks such as AWS and NVIDIA.
2 investors
Oxford Science Enterprises is a venture-building investment firm, working in partnership with the University of Oxford, that funds and creates companies based on scientific research from Oxford, Harwell and Culham. It provides capital and company-building support to spin ventures out of academic breakthroughs across deep science fields.
2 investors
Polaris Quantum Biotech (PolarisQB) offers a Quantum-Aided Drug Design (QuADD) platform that uses quantum annealing and quantum-inspired algorithms to search ultra-large chemical spaces and identify optimized small-molecule drug candidates. It serves pharmaceutical and biotech researchers pursuing drug discovery for targets such as women's health, longevity, and neglected diseases.
2 investors
Post-Quantum develops quantum-safe cryptographic solutions and standards for protecting sensitive communications and critical infrastructure against quantum computing threats. The company serves government, defense, and enterprise organizations worldwide with production-ready technologies used in NATO communications and critical infrastructure protection.
2 investors
Q-Block develops quantum infrastructure across three platforms: AllanQ for quantum timing independent of GPS/GNSS, LuciaQ for quantum networking and entanglement distribution, and PolarisQ, a containerized quantum computer. Its technology targets critical systems and HPC environments, including precision timing for GPS-denied operations, secure communication links for critical infrastructure, and quantum system simulation.
2 investors
Q*Bird develops quantum key distribution (QKD) devices and networks for secure data communication using quantum technology, serving commercial and industrial clients including financial institutions, telecommunications companies, and data centers. The company is building quantum-secured communication infrastructure for enterprise networks and enabling quantum connectivity for future quantum internet applications.
2 investors
QC Design builds Plaquette, on-premises software for quantum hardware teams to design, simulate, and optimize logical qubits and fault-tolerance architectures under realistic hardware imperfections. It supports major quantum hardware platforms including superconducting qubits, neutral atoms, trapped ions, and photonic systems, offering error-correction code libraries, error models, decoders, and multiple simulation backends.
2 investors
QCentroid provides a platform for adopting quantum computing that enables organizations to integrate, deploy, and scale quantum solutions across their business. The platform offers end-to-end quantum workflow capabilities, from use case ideation through execution, with a qubit-agnostic approach that connects to multiple quantum hardware providers and algorithms.
2 investors
Qernel Technologies builds full-stack autonomous computing systems, working on efficient cryptography and technology aimed at accelerating fault-tolerant quantum computers.
2 investors
Qnity builds a quantum-electrochemical chip using nanogold-silicon electrodes and quantum sensing to perform ultra-sensitive, real-time molecular screening and binding affinity analysis across molecule sizes, from small organics to biologics. The platform targets pharmaceutical and drug discovery use cases, including therapeutic development, drug prediction validation, and precision diagnostics.
2 investors
Qolab develops superconducting quantum computing hardware, focusing on improving qubit yield and integrating components to enable repeatable, manufacturing-standard quantum systems. The company aims to bring an integrated-circuit-style shift to superconducting quantum hardware to deliver utility-scale systems.
2 investors
QpiAI builds quantum computing hardware and software, including superconducting quantum processor chips and quantum computers, alongside enterprise AI and Gen-AI tools. It offers a hybrid quantum-classical stack and developer platform for enterprises in industries such as life sciences, automotive, finance, healthcare, and manufacturing.
2 investors
Quandela develops photonic quantum computers based on quantum-dot single-photon sources, offered as modular, cloud-accessible and on-premises platforms (including its MosaiQ platform and Prometheus single-photon source) plus the open-source Perceval development toolkit. It also runs a Quantum Acceleration Program to help enterprises across sectors such as cybersecurity, logistics, automotive/aerospace, pharmaceuticals, chemistry, energy, and finance adopt quantum computing.
2 investors
Quanfluence develops quantum computing systems, including a photonic quantum computer and a coherent Ising machine platform aimed at optimization applications. The company is based in India and focuses on advancing deep-tech and quantum technologies.
2 investors
Quantonation is a venture capital firm investing in early-stage deep-tech companies developing quantum computing, quantum sensing, and related photonic and semiconductor technologies.
2 investors