Amid rising UK cyber talent growth, Osney Capital closes oversubscribed €69 million debut fund
UK venture capital firm Osney Capital today announced the final close of its debut fund, oversubscribed at its €69 million (£60 million) hard cap – cementing its position as one of the UK’s first cybersecurity Seed funds.
The fund was supported by a cornerstone commitment from the British Business Bank through its Enterprise Capital Funds (ECF) programme, and is accredited by the UK’s National Security Strategic Investment Fund (NSSIF). Existing investors have been joined at final close by Imperial College London’s Endowment and Planet First Partners.
Joshua Walter, founding partner at Osney Capital, says: “Reaching final close oversubscribed at our hard cap, in this fundraising environment, is the clearest possible signal that investors see what we see: the UK’s cyber sector is one of the most exciting early-stage opportunities globally, and it benefits enormously from specialist capital on the ground, supporting the formation of the next generation of global category winners from the UK.”
John Anderson, Chief Investment Officer at Imperial College London, adds: “Cybersecurity is an area of growing economic and strategic importance to the UK, with significant potential for home-grown innovations to become major commercial successes. Our investment in Osney Capital’s first fund will give us exposure to this opportunity through a highly experienced specialist team, supporting our Endowment’s objective of generating financial returns to support Imperial’s mission of science for humanity.”
Founded in 2020, Osney Capital is a sector specialist venture capital firm, focused exclusively on the early-stage Cyber sector in the UK. Everything they do is geared around supporting the UK Cyber founders and companies they invest in during the early stages of their growth.
The firm is led by founding Partners Adam Cragg, Joshua Walter and Paul Wilkes.
According to the firm, cybersecurity is becoming an increasingly critical component for industry and governments. Growing geopolitical tensions and rising cyber threats have accelerated demand for sovereign cyber capabilities, creating a significant opportunity for UK cybersecurity companies.
In the year since its first close at over €57 million (£50 million), Osney has completed seven investments into early-stage UK cyber security companies at pre-Seed and Seed stage, writing cheques between €289k (£250k) and €2.8 million (£2.5 million) against a target portfolio of 30 companies.
The investments span AI security, disinformation detection and software supply chain protection.
Their portfolio includes companies building tools to detect and counter disinformation, secure open-source software, improve identity governance, map vulnerabilities and attack paths, enhance proactive threat hunting, and generate actionable intelligence on fraud and adversarial activity.
The fund has also invested in AI infrastructure that helps agents become more specialised, efficient, and observable.
The UK is home to one of the world’s deepest cyber security talent pools, supported by world-leading universities, a growing pipeline of cyber graduates – growing 20% year-on-year according to a 2025 government report – and a highly regarded national security community.
Paloma McGuiness, CEO at National Security Strategic Investment Fund (NSSIF), says: “Osney Capital brings the specialist focus required to strengthen the UK’s cyber ecosystem. The quality of their early investments highlights the depth of talent and innovation in this country, and NSSIF is proud to support the Osney team as they fund and scale world‑class UK cyber technologies.”
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