Aegiq

Aegiq is a UK-based quantum technology company founded in 2019 as a spin-out from the University of Sheffield. The company focuses on building full-stack photonic quantum computing systems, meaning it develops the complete technology chain from single-photon generation and photonic chips to control software and end-user applications. Aegiq first gained attention through its work in quantum networking and quantum key distribution (QKD) using its proprietary quantum dot single-photon source platform, which produces identical photons on demand. This technology later became the foundation of its move into quantum computing.

By 2022, Aegiq had raised seed funding from investors including High-Tech Gründerfonds and Deepbridge Capital, enabling it to commercialise its quantum communication technology. In 2024, the company achieved a major milestone when it won UK government funding under the UK Research & Innovation Technology Missions programme, in partnership with the National Quantum Computing Centre (NQCC), to develop Artemis, its first photonic quantum computing prototype. Artemis integrates deterministic photon sources, silicon nitride photonic processors, fibre-optic interconnects, and superconducting photon detectors in a compact, rack-mounted system. By 2025, Artemis was deployed at the NQCC alongside other quantum platforms, allowing external researchers to run experiments using Aegiq’s LightWorks software development kit.

Aegiq’s roadmap focuses on scaling photonic quantum hardware toward fault-tolerant quantum computing, with long-term goals of reaching around one million physical qubits. The company emphasises deterministic photon sources, ultra-low-loss photonic circuits, and modular fibre-connected systems as the technical basis for future error-corrected machines. Its architecture supports distributed and networked quantum computing using telecom-grade fibre and components, with simple environmental requirements and no need for extreme cryogenic systems.

Alongside quantum computing, Aegiq continues to strengthen quantum-safe communications. In 2025, the company and BT demonstrated the Quantum Link Assurance System (QLAS) for real-time detection of fibre tampering. Aegiq has also partnered with Pixel Photonics to integrate advanced single-photon detectors, improving system performance and scalability.

Aegiq’s work carries major implications for Cryptographically Relevant Quantum Computing (CRQC) while also contributing to protection against it through QKD and quantum-secure infrastructure. With government backing, strong partnerships, deployed hardware, and a clear scaling strategy, Aegiq stands as a key contributor to the future of photonic quantum computing in the UK and globally.

Aegiq was founded in 2019 as a spin-out company from the University of Sheffield in the United Kingdom. The origin of the company is directly linked to more than two decades of academic research in quantum photonics carried out at the university, particularly in the development of quantum dot single-photon sources. The founding researchers had created a method for generating identical photons on demand using compound semiconductor quantum dots, which solved a major technical problem in both quantum communications and photonic quantum computing. This research produced multiple peer-reviewed publications and patents and formed the core intellectual property on which Aegiq was built. The company was created to move this technology from laboratory research into commercial systems.

During its early years, Aegiq focused primarily on quantum communication. From 2019 to 2021, the company demonstrated its quantum dot photon sources in laboratory quantum key distribution systems, proving that its single-photon technology could operate within practical fibre-based communication networks. These early demonstrations allowed the company to secure innovation grants from UK government programmes and establish relationships with academic and industrial partners. In 2022, Aegiq raised seed funding from investors including High-Tech Gründerfonds and Deepbridge Capital, enabling it to expand engineering operations and begin converting its photon source platform into scalable commercial products.

Between 2022 and 2023, Aegiq gradually shifted its strategy from quantum networking alone to full-stack photonic quantum computing. The company developed its modular hardware concept based on fibre-connected photonic modules that combine photon sources, optical switching, photonic processors and detectors in standard rack-mounted systems. At the same time, it built its control software layer and introduced the LightWorks software development kit for programming and operating its quantum systems.

In 2024, Aegiq achieved a major breakthrough when it was selected under the UK Research & Innovation Technology Missions programme, in partnership with the National Quantum Computing Centre, to deliver a photonic quantum computing testbed. This led to the construction of its first full prototype quantum computer platform, named Artemis. Artemis integrates Aegiq’s deterministic photon sources, silicon nitride photonic processing chips supplied by QuiX Quantum, high-speed optical switching, fibre-optic interconnects and superconducting photon detectors. By 2025, Artemis was fully installed at the National Quantum Computing Centre and made accessible to external users for experiments and benchmarking.

Alongside its computing work, Aegiq continued to expand quantum communication projects. In April 2025, the company and British Telecom demonstrated the Quantum Link Assurance System, a fibre network monitoring platform that detects tampering and signal disturbances in real time. In mid-2025, Aegiq signed a partnership agreement with Pixel Photonics to integrate waveguide-based superconducting nanowire detectors into its photonic computing systems, improving detection efficiency and scalability.

Aegiq operates as a full-stack photonic quantum computing company delivering its first-generation quantum computer, deterministic quantum light sources, the QLAS platform and the LightWorks software environment. Its systems are deployed in standard data-centre racks, use telecom-grade components, and require only mild cooling. The company’s ongoing work focuses on increasing qubit counts, deepening on-chip integration of sources, switches and detectors, and progressing toward error-corrected and fault-tolerant photonic quantum computing architectures.

Aegiq’s mission is to build practical and scalable photonic quantum computers that can be deployed in real-world environments. The company aims to deliver full-stack quantum systems by engineering every layer of the technology, from deterministic single-photon sources and photonic chips to control software and customer applications. Aegiq focuses on making quantum computing reliable, accessible, and ready for use across industries such as cybersecurity, defence, energy, healthcare, pharmaceuticals, artificial intelligence, and aerospace. By using standard semiconductor manufacturing and telecom-compatible components, Aegiq works to shorten the path from research to deployment and enable organisations to solve problems that classical computers cannot handle.

Aegiq’s vision is to create fault-tolerant photonic quantum computers that operate at large scale and deliver real commercial value. The company seeks to enable a future where quantum systems are as deployable and dependable as today’s data-centre infrastructure. Aegiq aims to support scientific discovery, national security, economic development, and advanced technology by providing quantum computing platforms that are modular, networked, and simple to operate. Through continuous improvement in hardware integration, software development, and manufacturing, Aegiq envisions building quantum systems capable of solving complex problems in cryptography, simulation, optimisation, and data analysis for governments, research institutions, and industry worldwide.

Aegiq has received strong recognition from the UK government and the international quantum technology community. In 2024, the company was selected by UK Research & Innovation and the National Quantum Computing Centre to deliver one of the UK’s national quantum computing testbeds, a major endorsement of its photonic quantum approach. Its Artemis photonic quantum computer was installed at the National Quantum Computing Centre in 2025 as part of the UK’s core quantum infrastructure. Aegiq’s work has been supported by Innovate UK and national quantum programmes, and the company is recognised as an important contributor to the UK’s quantum technology ecosystem through its collaborations with universities, industry, and government partners.

Aegiq provides a complete range of photonic quantum computing products and services, designed to move quantum technology from research laboratories into real-world deployment. The company delivers full-stack quantum systems, meaning that it designs and builds every essential part of the technology, including photon sources, photonic processors, optical switching, detection hardware, control software, and end-user applications. This integrated approach allows Aegiq to offer reliable, scalable and commercially deployable quantum solutions for government, research institutions, and private industry.

At the centre of Aegiq’s product portfolio is its first-generation photonic quantum computer, which is now available and deployed at the UK National Quantum Computing Centre. This system is built as a modular, rack-mounted platform using standard 19-inch data-centre racks. It combines deterministic quantum light sources, integrated photonic processing chips, optical switching networks, fibre interconnects, and high-efficiency single-photon detectors. The system is designed for simple installation, with only mild cooling requirements and no need for extreme cryogenic equipment. It uses telecom-grade components and operates at telecom wavelengths, allowing it to connect naturally with existing fibre networks. This makes the system suitable for on-premises deployment in research facilities, secure government environments, and industrial data centres.

A key enabling technology in all Aegiq systems is its deterministic quantum light source platform. These single-photon and entangled-state sources are based on proprietary quantum dot technology developed at the University of Sheffield. They generate identical photons on demand at very high speeds, operating at gigahertz clock rates, and produce output directly into single-mode fibre in the telecom C-band. This allows high-fidelity quantum operations and forms the foundation of Aegiq’s quantum computing and quantum communication products.

Aegiq also delivers its Quantum Link Assurance System (QLAS), a deployable network security platform for optical fibre infrastructure. QLAS provides continuous real-time monitoring of fibre links and detects tampering, signal interference, and physical attacks on the network. It is designed to support the deployment of quantum key distribution and other secure communication systems by ensuring the integrity of fibre networks. QLAS has been successfully demonstrated with British Telecom and is aimed at telecom operators, governments, financial institutions, and critical infrastructure providers.

Another important offering is the LightWorks software development kit. LightWorks provides customers and researchers with the tools needed to program, control, and operate Aegiq’s quantum systems. The software allows users to design quantum circuits, manage hybrid classical-quantum workflows, submit jobs, and analyse results. LightWorks also supports emulation, enabling developers to test quantum applications before running them on real hardware. Through LightWorks, Aegiq offers cloud and remote access to its photonic quantum computers, allowing organisations to begin developing quantum applications today.

Aegiq’s photonic modules and subsystems are also available as individual products. These include fibre-connected photon source modules, high-speed optical switching units, integrated photonic quantum processing units, and superconducting single-photon detector modules. Each module is built using standard semiconductor manufacturing processes, providing uniform performance, reliability, and scalability. Customers can integrate these modules into larger quantum systems or use them within their own research and development programmes.

Beyond hardware and software products, Aegiq provides consulting, system integration, and technical support services. These services include quantum system design, deployment planning, application development support, and long-term system maintenance. Aegiq works closely with government agencies, research institutions, and industrial partners to tailor its solutions for use cases in cybersecurity, defence, energy, pharmaceuticals, healthcare, aerospace, artificial intelligence, and advanced manufacturing.