Osney Capital

Osney Capital is a UK-based venture capital firm exclusively focused on seed and Series A investments in early-stage cybersecurity startups. The firm targets innovative UK founders developing solutions in areas such as AI security, cloud security, regulatory compliance, and incident response, with initial cheque sizes ranging from £250,000 to £2.5 million and potential follow-on investments. Operating from Witney, the firm emphasizes a hands-on approach, leveraging its sector expertise to provide strategic guidance, network access, and resources to help portfolio companies scale globally. Founded around 2020 by partners Adam Cragg, Joshua Walter, and Paul Wilkes, Osney Capital emerged to address the funding gap for UK cybersecurity innovators. In April 2025, the firm closed its debut £50 million oversubscribed fund, backed by the British Business Bank, IronGate Capital Advisors, East X Ventures, and accredited by the UK's National Security Strategic Investment Fund. This capital enables investments in approximately 30 early-stage companies, capitalizing on the UK's £13.2 billion cybersecurity market driven by rising threats, AI adoption, and regulatory demands. The firm's portfolio includes notable early investments like MindGard, an AI security testing provider; Sitehop, a hardware-enforced network security specialist; RevEng.AI, an AI-powered binary analysis platform; and ESProfiler, a security investment platform. These investments highlight Osney Capital's commitment to backing high-potential UK cyber startups from inception. The leadership team brings deep expertise: Adam Cragg has invested in over 125 seed-stage startups with a top-decile track record; Joshua Walter led market strategy at NCC Group and enterprise sales in cybersecurity; Paul Wilkes scaled corporate teams across jurisdictions. All hold MBAs from the University of Oxford, complemented by a network of technical experts, Fortune 500 contacts, government leaders, and a focus on diversity through initiatives like the Investing in Women Code.