Cybersecurity · United Kingdom
Cybersecurity startups in United Kingdom
Early-stage cybersecurity companies headquartered in United Kingdom, founded in the last 5 years. Drawn from public sources.
How we choose these companies
A public directory of early-stage European cybersecurity startups. We aim to list every company that fits, not a hand-picked few. Here is exactly what that means, and why:
- European: headquartered in Europe (EU, EEA, UK, Switzerland and nearby). We go by where a company is based, not just where it sells, because this is a map of the European ecosystem.
- Early-stage: founded in the last 5 years. That is where the new ideas and the most active part of the ecosystem are; established household-name scaleups are a different list.
- A real product company: builds a scalable technology product or platform. We leave out agencies, consultancies and local service businesses, which do not follow the same path.
- Independent: a standalone company, not a subsidiary or brand of a larger corporation.
- Active: currently operating, with a live website. We re-check regularly and remove companies that shut down, get acquired, or move out of scope.
We list only public information about what each company does. We deliberately do not track or show fundraising: who is raising, who is investing, or how much. This is a directory of companies, not a deal database.
Missing a company, or see something off? Suggest an addition or report an issue.
10 early-stage cybersecurity startups in United Kingdom
A comprehensive list from public sources, not a hand-picked few.
Anzen Technology Solutions
London, United KingdomOffers decentralized, cryptographically secure data storage and sharing solutions for defense and critical infrastructure.
Cerbos
London, United KingdomAn open-source, policy-based authorization layer to decouple access control from application code.
Goldilock
Wolverhampton, United KingdomA physical network isolation solution that allows organizations to air-gap and secure critical assets remotely.
Klarytee
London, United KingdomSecures enterprise data through real-time encryption and access controls embedded directly within individual documents.
Lupovis
Glasgow, United KingdomAn AI-driven cyber-deception platform that deploys dynamic decoys to actively steer attackers away from critical infrastructure.
Mindgard
Oxford, United KingdomAn enterprise cybersecurity platform designed to secure and monitor AI models and LLMs.
Overe
Belfast, United KingdomAn automated cloud security assistant tailored for managed service providers (MSPs) to protect small businesses.
Ploy
London, United KingdomAI-native identity governance platform that automates access reviews, joiner/mover/leaver workflows, and non-human identity management across a company's SaaS stack.
Push Security
London, United KingdomHelps security teams monitor and secure employee SaaS usage via decentralized, agentless browser-level telemetry.
Tracebit
London, United KingdomEnables cloud threat detection by automatically deploying honeytokens across cloud infrastructure.
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