Osney Capital

Threat-focused vulnerability management: continuous threat modelling from real findings, root-cause analysis, and context for developer workflows.

Malicious code detection for open source: analyses what packages actually do to catch supply-chain threats that vulnerability databases miss.

Supervision and fine-tuning for AI agents: full run traces, anomaly review, and training signals from production behaviour.

Osney Capital invests in early-stage UK cyber security companies such as Refute, Mindgard, Sitehop, and OnSecurity at pre-seed and seed stages.

Insights and analysis from Osney Capital on the UK cyber security sector, emerging threats, and early-stage investment trends.

The latest announcements, investments, and updates from Osney Capital, sector specialist venture capital for UK cyber security.

Osney Capital has closed its debut fund — oversubscribed at its £60m hard cap — making Fund I one of the largest debut seed funds in UK history.

Adam has spent over fifteen years at the intersection of innovation and entrepreneurship — building startup ecosystems at MIT and NYU, founding a Forbes top-10 VC, and leading university commercialisation before co-founding Osney Capital.

Josh has held numerous Senior Leadership roles in the Cyber Security sector, with a background in Financial Services prior to that.

Paul has over 15 years of experience as a Financial Services and regulatory lawyer, including 8 years as a partner leading the corporate team at offshore law firm Collas Crill LLP.

Osney Capital’s partners bring decades of experience in cyber security, technology investment, and company building to support UK founders.

Osney Capital is a UK venture capital firm investing exclusively in early-stage cyber security. Deep sector expertise, networks, and hands-on support.

Osney Capital seeks early-stage cyber security companies in the UK, targeting ambitious founders.

Osney Capital is a venture capital firm specializing in UK cyber security investments at pre-seed and seed stages.

Osney Capital’s privacy policy explains how personal data is collected, used, and protected under UK data protection law.

Legal and regulatory disclosure information for Osney Capital. Important disclosures regarding investment advice, content, and regulatory compliance.

Osney Capital’s terms of service outline the rules for using osneycapital.com and include regulatory details about their FCA authorization.