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# CyLon Ventures
- URL: https://entrepreneurplus.co.uk/investors/cylon-ventures/
- Published: 2026-10-15T16:56:04.000Z
- Updated: 2026-10-15T16:56:04.000Z
- Description: Early-stage investor in cyber security and resilience start-ups in the UK, US and Israel
- Author: Editorial Desk
- Tags: #ep-investor

![CyLon Ventures logo](https://storage.ghost.io/c/05/a4/05a4a052-18ab-4836-8924-ec8b322c371c/content/images/2026/10/cylon-ventures-logo.png) 

Early-stage investor in cyber security and resilience start-ups in the UK, US and Israel

- Venture capital

Type

Venture capital

Based in

Elsewhere in the UK

Stages

Pre-seed, Seed, Series A, Series B+

Sector focus

Cybersecurity

Cheque size

€100k–€1.5M

Fund size

Undisclosed

Founded

2015

Website

[cylonventures.com](https://www.cylonventures.com/?ref=entrepreneurplus.co.uk)

CyLon Ventures is a specialist early-stage investor in security and resilience companies, backing start-ups in the UK, US and Israel. It started in 2015 as CyLon, a London cyber security accelerator, and later moved to investing directly.

The firm invests its own capital rather than running a conventional venture fund, and helps portfolio companies reach early customers, meet other investors and build strategic relationships. It was among the first backers of Immersive Labs and Tessian, and its portfolio also includes Cado and Mondoo. Its registered address is in Witney, Oxfordshire.

[LinkedIn](https://www.linkedin.com/company/cylon-lab/?ref=entrepreneurplus.co.uk) · [X (Twitter)](https://x.com/CyLonVentures?ref=entrepreneurplus.co.uk)

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