Quantum Computing Startups

NPL is a national measurement institute providing measurement science expertise and facilities to government, research organizations, and industries across the UK. The organization operates at the center of the UK's National Measurement System, ensuring consistency of measurement units and standards globally.

1 investor

Space CoLAB develops diamond-based quantum transceivers that operate at room temperature without cryogenics, providing quantum-secure communications for mobile platforms, remote locations, and tactical environments. The company targets defence and critical infrastructure customers, manufacturing its hardware through Australia's national fabrication network.

1 investor

Superposia develops platforms, educational resources, and tools to make quantum computing accessible to developers, researchers, and businesses without requiring deep quantum physics expertise. It focuses on bridging quantum theory and practical applications across various industries.

1 investor

Symmatrics provides quantum-secure encryption infrastructure that uses one-time symmetric keys generated from true random numbers to protect data in motion across industries such as healthcare, finance, e-commerce, gaming, and crypto. It offers a key-delivery layer and SDK that replace password-based identity and legacy PKI/certificate-based encryption without requiring application code changes, targeting enterprises, government agencies, and regulated sectors.

1 investor

Anthropic is an AI company developing Claude, a large language model, and is building custom chips in-house to improve performance and efficiency of its AI models for customers.

1 investor

Tato LLC develops microservices-based systems, notably the OsQ system for queue management and NetKernel, a microservices engine. The company leverages cloud-scale architectures and theoretical computer science to solve operational problems.

1 investor

The Whisper Company develops security software delivered as SDKs, including a Human-Centric authentication tool (FYEO) built on Zero Trust principles and a Quantum-Ready Encryption (QRE) SDK designed to protect data against future quantum decryption. Its products target enterprises and developers seeking to secure logins, remote access, and encrypted communications.

1 investor

Uviquity develops photonic integrated circuits built on aluminum nitride that generate and convert light across wavelengths from deep ultraviolet through infrared on a single wafer-scale chip. Its light-engine chips target quantum computing, advanced sensing, and human-safe ultraviolet disinfection applications.

1 investor

Viqthor develops hardware for controlling quantum processors, using RF, photonics, and signal processing technologies such as fiber-based RF transmission, microwave error correction, and embedded calibration. Its systems aim to enable scalable, energy-efficient control of large-scale quantum systems approaching one million qubits.

1 investor

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 sells sector-specific cybersecurity and AI "playbooks" — action guides aligned to standards like NIST CSF, ISO 27001, and IEC 62443 that provide governance templates, technical controls, vendor clauses, and post-quantum migration steps for organizations and their supply chains. The playbooks target 11 sectors including agriculture/food, public sector, manufacturing, transportation, education, healthcare, energy, enterprise, finance, defence, and SMBs.

1 investor

Xiphera designs and implements cryptographic intellectual property cores for field programmable gate arrays and application specific integrated circuits, protecting critical systems across communications, space, industrial, and government infrastructure.

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

SpinQ (量旋科技) builds full-stack quantum computing products, including superconducting and NMR-based quantum computers, quantum chips, measurement and control systems, and a quantum computing cloud platform with software. It serves research institutions, universities, science-education organizations, and industry, offering sector solutions for quantum education, fintech, biopharma, and AI.

1 investor

The company develops quantum-resistant security protocols and products that generate, manage, and verify encryption across cloud, edge, and on-premise environments for organizations.

0 investors

MagiQ Technologies develops sensing, communications, and security systems—rooted in quantum science, high-speed electronics, and digital signal processing—for defense agencies, energy companies, wireless carriers, and critical infrastructure operators. Founded in 1999 and based in the Greater Boston area, the company works with U.S. government bodies such as the Air Force, Navy, Army, DARPA, DOE, and NASA on demanding technical missions.

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

IonQ develops trapped-ion quantum computing systems along with quantum networking, sensing, and security technologies, including quantum key distribution and quantum sensors for applications in navigation, medical imaging, and secure communications. It serves enterprise and government customers, with work spanning quantum-accelerated chemistry simulation, quantum-classical AI, and Earth-observation infrastructure.

0 investors

Zapata Quantum is a publicly traded company (OTCQB: ZPTA) that applies agentic AI to accelerate quantum algorithm development by automating quantum resource estimation workflows. Its efforts target quantum chemistry applications such as drug discovery, energy, and advanced materials development.

0 investors