Current Portfolio

Arqit Quantum Inc supplies a unique quantum encryption Platform-as-a-Service which makes the communications links of any networked device secure against current and future forms of attack – even from a quantum computer.  Arqit’s product, QuantumCloud™, enables any device to download a lightweight software agent of less than 200 lines of code, which can create encryption keys in partnership with any other device.  The keys are computationally secure, one-time use and zero trust.  QuantumCloud™ can create limitless volumes of keys in limitless group sizes and can regulate the secure entrance and exit of a device in a group.  The addressable market for QuantumCloud™ is every connected device. Arqit trades on Nasdaq under the ticker symbols ‘ARQQ’ and ‘ARQQW. Quantum Exponential have an option to be transferred 199,993 ordinary Arqit shares.

Siloton Limited is a technology company that uses quantum techniques and photonic integrated circuits for use in sub-surface optical scanning devices with applications across healthcare, and non-destructive testing. Specifically, Siloton is developing an at-home monitoring service for the 25% of over 60’s with age-related macular degeneration. This service will reduce the burden of treatment and while helping patients retain their sight for longer. Siloton’s service combines a next-generation diagnostic imaging device with cloud-based digital health tools that will enable clinicians to deliver an unparalleled quality of care to their patients. Quantum Exponential has invested as part of a seed funding round in Siloton and has a holding of 12.79%.


Aegiq (/ˈiːdʒɪk/, ee-jik) is using its pioneering single-photon and integrated quantum optics platform to build a new generation of networking and computing with quantum technology. This includes addressing the demand for next-gen fiber and satellite quantum communications, as well as driving further research and development in quantum computing and quantum optics using its advanced technology. 

Aegiq is a spin-out of the University of Sheffield, founded by a team consisting of CEO Dr. Max Sich, CTO Dr. Scott Dufferwiel, and CFO Andrii Iamshanov.   The company has secured funding from a number of investors including Innovate UK, part of UK Research & Innovation.   Quantum Exponential has a c 4.06% stake in Aegiq’s issued share capital on a fully diluted basis.  For more information about Aegiq visit: www.aegiq.com  


Universal Quantum is a company that was founded by scientists from the University of Sussex and it’s the third investment made by Quantum Exponential in a spin-out from a UK University. Universal Quantum is focused on creating the first million-qubit quantum computer. Its unique, electronic quantum computing modules are based on silicon technology where individual modules are connected using ultrafast electric field links to form an architecture that scales. From medicine to material science and much more, its work in the technology sector hopes to transform the world. Qubits are error-prone and difficult to control. As a result, quantum computers are unstable, complex systems. Quantum error correction, a collection of algorithms and techniques that identify and fix errors in quantum computers is used, but for such algorithms to work, the information stored in a single qubit is distributed across other supporting qubits. Quantum Exponential has invested £450,000 through an Advanced Subscription Agreement. 

One logical qubit is not enough to complete complex calculations to do something useful for society. At the very least, you need hundreds or thousands of logical qubits, each one supported by hundreds or thousands of physical qubits. This is where the requirement for millions of qubits comes from.