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Quantum Exponential

16 Great Queen Street, London, England, WC2B 5DG, United Kingdom

Overview

Quantum Exponential is assembling a portfolio of potential investments in leading quantum technology companies around the world.

Total investments
5
Lead investments
0
Investments · 12mo
2
Active investors
1

Sector focus

  • Quantum Computing
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Investment portfolio

  • Singular Photonics

    Participated · Equity · Aug 2026

    Singular Photonics is an Edinburgh-based fabless semiconductor spinout from the University of Edinburgh built on research led by Professor Robert Henderson. The company develops image sensors based on single-photon avalanche diode (SPAD) technology that can detect and precisely time individual photons, enabling high-sensitivity and precise-timing imaging. Singular Photonics combines SPAD detectors with on-chip computation so data can be processed at the point of detection, reducing external data transfer and enabling real-time analysis. It currently offers two commercially available product families, Andarta and Sirona. The company's target application areas include machine vision, industrial automation, physical AI, scientific research and medical imaging. Recent financing of $2.15M is intended to expand engineering capacity and accelerate development and product introductions.

  • Quantcore

    Participated · Seed · Feb 2026

    Founded in 2025 as a University of Glasgow spin-out, Quantcore designs, manufactures, and tests superconducting quantum processors, resonators, and sensors that serve as the backbone of quantum computers and advanced sensing platforms. Its proprietary use of niobium allows components to operate at higher temperatures than the aluminium devices favored by global competitors, reducing energy consumption and improving scalability. The company’s quantum sensors also enable secure communications and high-precision medical imaging with applications ranging from neuroscience to early disease detection. Quantcore targets customers such as UK national laboratories that demand secure, high-performance quantum hardware. With the UK government committing £670 million to quantum technologies, Quantcore positions itself as a key domestic supplier, arguing that sovereign capability is critical as classical computing nears its limits. Proceeds from the latest funding will be used to hire engineers in design, manufacturing, and cryogenic testing, alongside commercial staff, to accelerate product development and market outreach.

  • Delta g

    Participated · Seed · Jul 2023

    Delta.g is a Birmingham-based quantum technology spin-out from the University of Birmingham that builds quantum sensors engineered for real-world deployment. Its proprietary devices provide significant gains in precision, portability and reliability, enabling quantum-grade geospatial data collection. Early trials have demonstrated value across infrastructure monitoring, transportation, and other dual-use government and commercial scenarios. The hardware is paired with a data and analytics layer that integrates sensor outputs directly into customers’ decision-making workflows. With newly raised capital the company plans to expand its technical team, scale manufacturing capacity and deliver pilot field systems through key partners. It also intends to advance its analytics platform to support broader adoption. To date, Delta.g has secured £4.6 million in seed funding; the article did not disclose additional operating metrics such as revenue or user numbers.

  • Oxford Quantum Circuits

    Participated · Series A · Feb 2023

    Oxford Quantum Circuits, founded as a spinout from Oxford University in 2017 and based in Reading, develops superconducting quantum computing hardware and supporting software. The company deploys its machines in data centres and offers access to customers and researchers as a cloud service. OQC targets business and government customers, citing demand from financial services, defence and security companies for secure quantum technology. It positions itself to move from long-term promise toward near-term commercial delivery and plans to scale internationally and advance its technology roadmap. The company recently strengthened its financial position by raising a £260 million Series C to accelerate commercialization and market expansion. No revenue or user metrics were disclosed in the provided article.

  • QLM Technology

    Participated · Series A · Aug 2022

    QLM Technology is a photonics and analytics company based at the EPIC Centre in Torbay that is transforming methane-emissions monitoring through its proprietary quantum gas lidar platform. The company’s lidar sensors give industrial operators the ability to detect, localize, and quantify methane leaks quickly and with high precision, addressing a pressing environmental and regulatory need. With protected intellectual property and a leadership team possessing deep industry expertise, QLM is positioned to serve energy, industrial, and environmental markets worldwide. The firm plans to channel new capital into continued product development across both software and hardware, expand industrial applications, and build out channel partnerships to broaden market reach. Management emphasizes that its technology contributes directly to methane-reduction goals central to global net-zero efforts. Recent funding activity indicates growing investor confidence in QLM’s commercial potential, although specific revenue or user metrics were not disclosed. The company views the current raise as a springboard for scaling deployments and strengthening its foothold in the fast-growing clean-tech sector.

Team

  • Steven Metcalfe

    Chief Executive OfficerChief

    LinkedIn