139 cyber security angel investors in the UK (2026)

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Explore angel investors with a focus on cybersecurity — including ex-CISOs, security founders, and technical operators backing UK startups in threat detection, SOC tools, and cloud resilience.

This table lists angels investing across cyber, privacy, and compliance.

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View their startup interests: threat intel, cloud infra, DevSecOps
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👉 Looking for angel investors in other sectors? Check out the full angel investors database, or explore the cyber security landscape with our curated lists of cyber security startups, cyber security events, and venture capital firms investing in cyber security — or view the full cyber security investor hub.

139 most active UK cyber security angel investors

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)

Angel investors: 30 /139🔒

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Cyber Security Angel Investors	Location	Investment Focus	Startup Investments
Charles Delingpole Charles Delingpole is a technology entrepreneur, angel investor and journalist with extensive ...	London	TechAIBiotechLife sciencesHealthcareMarketing+10	AnorakBondavalCalizaCausalyCodatCredit Kudos+38
Henry Irish Angel investor with a strong focus on sectors including AI, cyber security, data, fintech, heal...	Brighton and Hove	AICyber securityDataFintechHealthtechSaaS+1	AmelioAnteriorApronArtificial SocietiesAwellBorderless+28
William Armitage Angel investor with a diverse investment portfolio spanning automotive, healthcare, education, ...	London	MarketingMediaEntertainmentTechEducationFinance+26	carwoweMoovGreat British ChefsidioKisanHubLingumi+12
Brendan Gill Angel investor with extensive experience in over 100 startups across various sectors, including...	London	FintechGreentechCyber securitySustainabilitySoftware	Climate XLowdownFellaChangeEngineZinc WorkGilion+16
Serge Chlaramonte Serge Chiaramonte is an early stage tech angel investor and advisor. He is known for his invest...	London	FinanceSoftwareTechCyber securityLogisticsTransportation+19	CapdeskCarmoolaCarmoola,Credit KudosContingentCredit KudosDishpatch+13
Errol Damelin Errol Damelin is an entrepreneur and investor, having founded, served as CEO, chaired, or been ...	London	Retail and commerceProperty and constructionHealthcareHuman resourcesFinanceInsurance+23	CazooCityMapperDemystEllipticFarewillHiBob+12
Eda Leka Angel investor with extensive experience in consumer products, B2C tech, and eCommerce scale-up...	London	Cyber securityEdtechEdtechBiotechEcommerceAdtech+13	CodeFirstGirlsEnsilitechChemasteryKuai CommerceFlexaPlaced+10
Ian Ellis Ian Ellis is a seasoned business angel specialising in enterprise technology and cyber security...	London	Enterprise techCyber securitySoftwareAIFintech	Quantly AILunar DevYes-SecurityMagic OrangeValarian / formerly WorldRHoneyDew+10
Robert Marshall Angel investor with a strong focus on AI, cybersecurity, software, and healthtech. With a portf...	Cambridge	SoftwareMarketingHealthcareBiotechLife sciencesSpace+10	Cambridge NutraceuticalsCenso BiotechnologiesOxford Space SystemsWorkFinderArachnysAudio Analytic+8
Greg Marsh Greg Marsh, a prominent figure in entrepreneurship and venture capital, has made diverse contr...	London	LogisticsTransportationSupply chainFood and beverageFinanceProperty and construction+10	DeliverooflatfairHokodoOnfidoWeezyCommunion+8
Mark Ransford Angel investor specialising in fintech, with a focus on pre-seed, seed, and occasionally Series...	London	Retail and commerceHealthcareLeisureFitnessEntertainmentFood and beverage+14	BibliUDamisaFluidlyIncredibleLendablePrivitar+6
Michael Pennington Michael Pennington plays a significant role in the future of UK tech, with investments in a wid...	London	AgricultureSoftwareLogisticsTransportationSupply chainFinance+13	BreedrCable TechCarmoolaGospel TechnologyHomeTreeKoru Kids+5
Chris Mairs Computer scientist and Fellow of the Royal Academy of Engineering. Venture Partner at Entrepren...	Wiltshire	FinanceBiotechLife sciencesTechEnvironmentEnergy+21	AimBrainBorderlessCredit KudosFabricNanoHubbleLoyalty Bay+5
Matt Clifford Matt Clifford is the Prime Minister's Adviser on AI Opportunities and co-founder of Entrepreneu...	London	FinanceSoftwareTechEnvironmentEnergyCleantech+15	ClaimerEchoboxNotplaPermutivePhasecraftStackfix+3
Zeynep Yavuz Angel investor with a focus on technology and healthcare sectors. Known for supporting early-st...	London	FinanceTechSoftwareAICyber security	Ramp.NetworkYocostitch.moneyTruelayertwo.incpledge.io+2
David Stroud David Stroud extends his expertise and financial resources to various software companies, aidin...	London	SoftwareEducationRetail and commerceTravelLeisureEntertainment+7	BeyonkBodytrakGripableHello Lamp PostLooper InsightsPango+2
Jeff Crusey Angel investor with a focus on investments in AI, machine learning, cyber security, and softwar...	London	AIMachine learningCyber securitySoftware	Amali SystemsCastelionTrue AnomalyDanti AIZephrEpsilon3+2
Mark Pearson Mark Pearson 🔥 is the Founder & Managing Partner of Fuel Ventures, an active early-stage ventu...	London	AIDataTechCloudCyber securitySoftware+5	AlfaEilla AICommunity WolfEventwiseAllocation StrategyLevellr+2
Tim Sadler Tim Sadler is the Group Vice President & General Manager of Tessian Group, having co-founded an...	London	HealthcareAICyber securityProperty and constructionTechHealthtech+3	NomioRiffSurfboardThirdfortTracebitUserled
Richard Grethe Angel investor with nearly 30 years of experience in the healthcare and pharmaceutical sectors,...	London	Cyber securityCloudAIDataTechSoftware+10	LexverifyFocus PharmaceuticalsMobeus VCTAMCoRandom42Graphite Capital
Grace Cassy Grace Cassy is the Co-Founder at CyLon and an angel investor in deep tech, with investments in ...	London	TechAIMarketingSoftwareEducationCyber security+9	Immersive LabsTessianSlashIDUtilaTreeconomySpexi
Stephanie Peritore Stephanie Peritore is a Prime Finance & Delta 1 & ETF Origination & Strategy professional in EM...	London	Food and beverageHealthcareTechImpactCyber security	Hyfe FoodsEvo FoodsLokiPassion CapitalThe PackPip & Nut
James Chillman Angel investor with extensive experience in cloud services, digital marketing, IT support, disa...	Manchester	Cloud servicesDigital marketingIt supportDisaster recoveryCloudSaaS+3	FergusCloud AcademyQA LimitedUK BackupVysiion
Arvind Siva Angel investor with a strong focus on early-stage angel investments in private markets, particu...	London	CybersecurityFashion technologyArtificial intelligenceFinancial technologyAICyber security+2	FractalInnerworksHey SaviPerplexity.AINumarqe
Pete Hutton Pete Hutton is the Chairman at Agile Analog, Cambridge GAN Devices, and Xampla. He is an experi...	UK	EducationEnvironmentEnergyCleantechImpactAgriculture+29	ArchFormEnteroBiotixMiAlgaePavegenTrojan Energy
Richard Little Angel investor and entrepreneurial non-executive director with a strong focus on B2B fintech an...	UK	SoftwareB2BFinanceLogisticsTechInsurance+18	CyberSmartConcirrusExonarOVO GroupThought Machine
John Hornby John Hornby is a non-executive director and charity trustee with extensive experience in both t...	London	FinanceCrypto / web 3 / blockchainTechCyber securityFood and beverageSoftware	CrowdfunderNutmegPavegenVita Mojo
Carl Rigby Angel investor with a focus on tech organisations, specialising in consultative sales and marke...	Bath	Nano coating technologyCctv technologyTechHardwareCyber securityEnergy	OptituneVeracityCohesionuGreen
Mike Milner Angel investor with a focus on early-stage investments in sectors such as quantum computing, ar...	London	Quantum computingAITechnologyCyber securityTechSoftware	AegiqHey SaviPerplexity.AIFractal
Jess McAllister Angel investor with a strong background as an early employee at Uber and Intercom, now actively...	UK	TechSoftwareCyber securityFintech	HopinDarktraceClaystackSharechat
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