Most active cyber security investors in the UK right now (free list)
List of UK cyber security angel investors and venture capital firms.
Find your cyber security investor with the full list of UK venture capital investors.
💡 From ex-CISOs to specialist funds, this page highlights investors backing UK cybersecurity startups — including angels and VC firms focused on threat detection, privacy, and cloud infrastructure.
🧭 You'll find two preview tables below: one for Cyber Security venture capital firms and one for Cyber Security angel investors, each sortable by cheque size, stage, and focus.
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Here’s the problem: more than 85% of cyber attacks involve human error.
So cyber security is not only just about fixing problems or protecting technically a business from hacking. It’s also about providing risk analysis, and establishing where human mistakes or human psychology can be played with to generate a breach in highly elaborate systems.
Investments in this sector are paramount to protect the future of our tech world.
The UK’s cybersecurity ecosystem spans threat detection, infrastructure protection and enterprise tools. Explore the key players on our cybersecurity startup watchlist and stay connected through cybersecurity events nationwide.
Below is a list of the most active Cyber security investors in the UK:
Top 213 cyber security venture capital firms in the UK
VC Firms (name, picture, linkedin, investments)
| cyber security Venture Capital Firms | Investment Sector | Location | Funding Round | Contact Details |
|---|---|---|---|---|
 London | ||||
London | ||||
 Osney Capital(more info 🔒) Osney Capital is a venture capital firm specialising in the early-stage Cyb... | London | |||
 AlbionVC(6 contacts 🔒) AlbionVC focuses on early-stage investments in the UK, specialising in soft... | London | |||
London | ||||
Edinburgh |
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Top 139 cyber security angel investors in the UK
Angel Investors (name, investment focus, portfolio, contact)
*These angel investors have publicly mentioned their interest in angel investing or are members of angel networks. (Last updated: May 2026)
| cyber security Angel Investors | Location | Connect | Investment Focus | Startup Investments |
|---|---|---|---|---|
 Charles Delingpole Charles Delingpole is a technology entrepreneur, angel investor and journalist with extensive ... | London | |||
 Henry Irish Angel investor with a strong focus on sectors including AI, cyber security, data, fintech, heal... | Brighton and Hove | AmelioAnteriorApronArtificial SocietiesAwellBorderless+28 | ||
 William Armitage Angel investor with a diverse investment portfolio spanning automotive, healthcare, education, ... | London | ClearStakecarwoweMoovGreat British ChefsidioKisanHub+13 | ||
 Brendan Gill Angel investor with extensive experience in over 100 startups across various sectors, including... | London | Climate XLowdownFellaChangeEngineZinc WorkGilion+16 | ||
 Serge Chlaramonte Serge Chiaramonte is an early stage tech angel investor and advisor. He is known for his invest... | London | CapdeskCarmoolaCarmoola,Credit KudosContingentCredit KudosDishpatch+13 | ||
 Errol Damelin Errol Damelin is an entrepreneur and investor, having founded, served as CEO, chaired, or been ... | London | ClaimerCazooCityMapperDemystEllipticFarewill+12 | ||
| All angel investors | All locations | All investor sectors | All funded startups |
Looking for individual backers instead?
👉 Explore 139 cyber security angel investors.
This is a complicated topic. It made be worth reading a quick definition before we move on:
What is cyber security?
Cyber security refers to the practice and techniques used to protect computers, networks, programs, and data from unauthorised access, attacks, damage, or theft. It encompasses a broad range of measures, tools, and processes designed to safeguard digital information and assets from cyber threats such as viruses, malware, ransomware, phishing attacks, and hacking.
Cyber security is crucial for individuals, companies, and governments alike, as it protects sensitive information, maintains privacy, and ensures the integrity and availability of data.
A prominent example of a UK-based cyber security startup is Sophos. Sophos offers a wide range of products and services designed to provide comprehensive protection against a variety of cyber threats.
Their solutions include endpoint protection, network security, cloud security, and encryption, catering to businesses of all sizes. Sophos is known for its innovative technologies, such as artificial intelligence-driven protection mechanisms, and its ability to offer unified solutions that simplify complex security environments.
Understanding Cyber-Security Investors
For Cyber-Security funding, differentiate clearly between angel investors and venture capitalists (VCs). Cybersecurity angels usually possess direct industry experience, investing personal wealth in startups at early stages. Cybersecurity VCs are structured firms backing companies that demonstrate market-ready solutions.
Recently funded UK cyber security startups
Discover the most exciting cyber security startups from the UK.
