Unclassified // open-source data on European defence tech
Cyber
8 companies

Cyber startups in Europe

Security for weapons systems, embedded devices, networks and information space, from firmware protection to detection of disinformation campaigns. A dual-use field where many startups sell to both armed forces and critical infrastructure.

Tactical operations centre during Saber Junction 19, Hohenfels, Germany. Photo: U.S. Army JMRC photo by Spc. Hayden Allega, Public domain (PD-USGov-Military-Army).

Latest rounds

DateCompanyRoundAmountCountrySector
Oct 2026Osavul Series A€8.5MLuxembourgCyber
May 2026RevEng.AI Series A$15MUnited KingdomCyber
Dec 2025Equixly Series A-ItalyCyber
Oct 2025LuxQuanta Series A€8MSpainCyber
Jul 2025Exein Series C€70MItalyCyber
Jan 2025CybExer Technologies Venture debt€1.5MEstoniaCyber
Sep 2023Goldilock Seed$1.7MUnited KingdomCyber

All companies

Full directory

Osavul

Luxembourg, Luxembourg

Ukraine-born AI platform detecting hostile intent across cyber, physical and information domains for governments and critical infrastructure.

CyberSeries A / Oct 2026

RevEng.AI

London, United Kingdom

AI-powered binary analysis platform that inspects compiled software and firmware without source code to find malicious functions and vulnerabilities.

CyberSeries A / May 2026

Equixly

Florence, Italy

Offers an agentic AI hacker that continuously discovers and security-tests APIs for critical-sector organisations.

CyberSeries A / Dec 2025

LuxQuanta

Barcelona, Spain

ICFO spin-off making continuous-variable quantum key distribution systems that run over existing fibre networks.

CyberSeries A / Oct 2025

Exein

Rome, Italy

Embedded cybersecurity platform protecting firmware and connected devices at runtime; reported in over one billion devices.

CyberSeries C / Jul 2025

CybExer Technologies

Tallinn, Estonia

Provides cyber ranges and live-fire cyber exercise and training platforms for armed forces, governments and enterprises.

CyberVenture debt / Jan 2025

Goldilock

Wolverhampton, United Kingdom

Makes FireBreak, a hardware device that physically isolates and segments networks from the internet on demand to block remote cyber attacks.

CyberSeed / Sep 2023

Alias Robotics

Vitoria-Gasteiz, Spain

Cybersecurity for robots and unmanned systems, including the open source CAI framework and on premise cybersecurity language models for defence users.

CyberEIC Accelerator