Osney Capital Closes £60M Debut Fund for UK Cybersecurity Startups
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Osney Capital Closes £60 Million Debut Fund for UK Cybersecurity Startups

The oversubscribed fund is the UK's first seed fund dedicated exclusively to cybersecurity.

6/29/2026
Ghita Khalfaoui
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Osney Capital has successfully closed its inaugural fund at £60 million, surpassing its initial £50 million target in a challenging fundraising climate. This achievement marks the establishment of the UK's first venture fund exclusively dedicated to early-stage cybersecurity startups. The fund is one of the largest debut seed funds in the nation's history, signaling strong investor confidence in the UK's burgeoning cyber sector.


Strategic National Backing

The fund is supported by a powerful coalition of investors, reflecting a broad national commitment to enhancing the UK's sovereign cyber capabilities. Cornerstone backing comes from the British Business Bank through its Enterprise Capital Funds programme. Further accreditation is provided by the government's National Security Strategic Investment Fund (NSSIF), highlighting the fund's strategic importance.

At the final close, Imperial College London’s Endowment and Planet First Partners joined the investor group, alongside prominent cyber entrepreneurs. John Anderson of Imperial College London noted the fund's potential to generate returns while supporting UK innovation. Paloma McGuiness of NSSIF praised Osney Capital's specialist focus and its role in scaling world-class UK cyber technologies.

Addressing a Critical Funding Gap

The UK has long faced a challenge in translating its deep cybersecurity talent into globally competitive, independent companies. Many promising startups are acquired by US or Israeli firms before they can scale significantly. This trend is partly due to a structural gap in the domestic funding landscape, particularly at the earliest stages of development.

Osney Capital was created to address this specific issue by providing crucial pre-seed and seed-stage capital. Unlike generalist venture capitalists who may be hesitant to invest before a product or revenue exists, Osney offers sector-specific expertise. This support aims to prevent promising founders from bootstrapping or seeking investment overseas, thereby retaining talent within the UK.

Investment Strategy and Early Portfolio

Since its first close, Osney Capital has been actively deploying capital, investing in seven early-stage companies with cheques ranging from £250,000 to £2.5 million. The firm plans to build a diverse portfolio of approximately 30 companies, focusing on emerging threats. These investments target the next generation of cybersecurity challenges driven by automation and sophisticated agents.

The initial portfolio companies are tackling critical areas such as AI security, software supply chain protection, and disinformation detection. Notable investments include Refute, a platform that helps governments counter disinformation campaigns, and Ploy, which focuses on identity governance. Another portfolio company, Aviel, provides actionable threat intelligence on online fraud activities targeting consumers.

The Future of UK Cybersecurity

The global cybersecurity market is projected to grow to over $500 billion by 2030, presenting a substantial opportunity for innovation. The UK is uniquely positioned to capitalize on this growth, boasting a world-class talent pool supported by leading universities and national security institutions. Osney Capital's fund is designed to harness this potential and foster homegrown success stories.

Joshua Walter, a founding partner at Osney Capital, emphasized that the oversubscribed fund signals strong investor belief in the UK's cyber sector. He stated that specialist capital on the ground is essential for supporting the formation of the next generation of global category winners. This approach is vital for transforming local talent into international market leaders.


The successful launch of Osney Capital's £60 million fund represents a pivotal moment for the UK's technology ecosystem. By providing specialized, early-stage funding, the firm is directly addressing a long-standing barrier to growth for domestic cybersecurity startups. The ultimate success of this initiative will be measured by its ability to help these companies scale independently on the global stage.