--- title: CyLon Ventures - Startup Match Score & Focus Areas description: Is CyLon Ventures the right VC for you? See how their thesis aligns with your startup and discover more active investors focusing on security and resilience technologies. --- [![Höpöhöpö_logo_black](https://27245214.fs1.hubspotusercontent-eu1.net/hubfs/27245214/H%C3%B6p%C3%B6h%C3%B6p%C3%B6_logo_black.png)](https://www.hopohopo.io/?hsLang=io) - [For Startups](https://www.hopohopo.io?hsLang=io) - For Investors & Accelerators - [Screen your deal flow with AI](https://www.hopohopo.io/for-investors?hsLang=io) - [Source deals from co-investors and accelerators](https://www.hopohopo.io/source-deal-flow?hsLang=io) - [Help your portfolio fundraise](https://www.hopohopo.io/portfolio-fundraising?hsLang=io) - [For BANs](https://www.hopohopo.io/business-angel-networks?hsLang=io) - [Pricing](https://www.hopohopo.io/pricing?hsLang=io) - Resources - [Maritime Venture program](https://maritime-venture.com/) - [Startup Fundraising Essentials](https://www.hopohopo.io/fundraising-essentials?hsLang=io) - Investor lists - [EdTech investors in Europe](https://www.hopohopo.io/edtech-investors?hsLang=io) - [FinTech investors in Europe](https://www.hopohopo.io/fintech-investors?hsLang=io) - [HealthTech investors in Europe](https://www.hopohopo.io/healthtech-investors?hsLang=io) - [Climate & Sustainability investors](https://www.hopohopo.io/climate-and-sustainability-investors?hsLang=io) - [Gaming investors](https://www.hopohopo.io/gaming-investors?hsLang=io) - [SpaceTech investors](https://www.hopohopo.io/spacetech-investors?hsLang=io) - [SportsTech investors](https://www.hopohopo.io/sporttech-investors?hsLang=io) - [Enterprise Software investors](https://www.hopohopo.io/enterprise-software-investors?hsLang=io) - [DefSec investors](https://www.hopohopo.io/defsec-investors?hsLang=io) - [Marine Tech investors](https://www.hopohopo.io/marinetech-investors?hsLang=io) - [Mobility investors](https://www.hopohopo.io/mobility-investors?hsLang=io) - [PropTech investors](https://www.hopohopo.io/proptech-investors?hsLang=io) - [Energy investors](https://www.hopohopo.io/energy-investors?hsLang=io) - [Top 10 Active investors in Berlin](https://www.hopohopo.io/top-investors-berlin?hsLang=io) [Log in](https://start.hopohopo.io/) [Sign up](https://start.hopohopo.io/?signup=true) # CyLon Ventures Overview CyLon Ventures is a UK-based investment firm specializing in early-stage investments in security and resilience technologies. Founded in 2015 by Grace Cassy, Jonathan Luff, and Alex van Someren, the firm leverages its deep expertise in national security and technology to support innovative startups. CyLon has been the first investor in notable companies like Immersive Labs and Tessian, focusing on helping portfolio companies reach early customers, meet other investors, and build strategic relationships. Unlike traditional VC funds, CyLon invests its own capital, allowing for a uniquely founder-aligned approach. Is CyLon Ventures the right investor for your startup? Browse their investment focus, stage preferences, and geographic scope to see how well they align with your fundraising goals. Your full match score with CyLon Ventures, along with a list of other relevant VCs, is available on Hopohopo.io. ## CyLon Ventures VC Fund ![CyLon Ventures logo](https://www.hopohopo.io/hubfs/ecosystem-logos-from-platform/12940-8a2929431e3453f1352048155950efd2.png) ## Investment focus ### Invest in - Western Europe 1 / 14 - North America 1 / 5 - Middle East 1 / 16 ### Product type - Software - Services ### Industries / verticals - Cybersecurity / Identity Stages Pre-seed, Seed First ticket size £25,000 - £100,000 ## Contact information Co-Founder Grace Cassy ![LinkedIn](https://27245214.fs1.hubspotusercontent-eu1.net/hubfs/27245214/H%C3%B6p%C3%B6h%C3%B6p%C3%B6%20-%20Website%20visuals/Icons/carbon_logo-linkedin-grey.svg) ![Email](https://27245214.fs1.hubspotusercontent-eu1.net/hubfs/27245214/H%C3%B6p%C3%B6h%C3%B6p%C3%B6%20-%20Website%20visuals/Icons/Sign-At--Streamline-Core.svg) ## How to approach funds like CyLon Ventures When reaching out to CyLon Ventures, founders should highlight how their solution addresses critical security or resilience challenges with a clear path to early market traction. Emphasize your team's domain expertise and ability to navigate complex regulatory or enterprise environments, as CyLon values founders who can credibly engage with both commercial and government stakeholders. Demonstrate a readiness to leverage CyLon’s network for strategic introductions and early customer validation, showing you understand the value of their hands-on, relationship-driven support. ## Find the best-fitting investors for your startup Stop wasting weeks searching for the right investors. Upload your deck and get matched with investors who actually fit your startup — so you can focus on building, not chasing. 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[Sign up](https://start.hopohopo.io/?signup=true) - [For Startups](https://www.hopohopo.io/startups?hsLang=io) - [For Investors and Accelerators](https://www.hopohopo.io/business-angels-and-vcs?hsLang=io) - [For Business Angel Networks](https://www.hopohopo.io/business-angel-networks?hsLang=io) - [Blog](https://hopohopo.gitbook.io/fundraising-with-hopohopo/) ### Follow us ![Höpöhöpö_logo_white](https://27245214.fs1.hubspotusercontent-eu1.net/hubfs/27245214/H%C3%B6p%C3%B6h%C3%B6p%C3%B6_logo_white.png) © 2026 Hopohopo.io All rights reserved [Privacy Policy](https://www.hopohopo.io/privacy-policy?hsLang=io) [Terms of Service](https://www.hopohopo.io/terms-of-service?hsLang=io) ![](https://px.ads.linkedin.com/collect/?pid=4090745&fmt=gif) ```json { "@context" : "https://schema.org", "@type" : "Organization", "description" : "CyLon Ventures is a UK-based investment firm specializing in early-stage investments in security and resilience technologies. 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