German Defense AI Startup SE3 Raises $30M for Autonomous Systems

Munich-based defense technology startup SE3 has raised $30 million in Series A funding to expand its artificial intelligence software for autonomous military systems. The investment round, announced on November 12, was led by Accel, with participation from Keen Venture Partners and continued backing from Lakestar and Seedcamp.

SE3 develops spatial intelligence software designed to help unmanned systems understand and navigate their physical surroundings. The technology combines computer vision and artificial intelligence to process information from multiple sensors, creating a shared three-dimensional representation of the operational environment.

The company is targeting applications where conventional satellite navigation and communications may be disrupted by electronic warfare, a challenge increasingly relevant to European armed forces operating drones and ground robots.

SE3 Expands Defense Partnerships in Germany and Ukraine

SE3's software is designed to work across platforms from different manufacturers, allowing military operators to integrate autonomous capabilities without becoming dependent on a single hardware supplier.

According to investor Accel, the startup is already working on contracts with the German Armed Forces and Ukrainian customers. It has also established partnerships with European defense electronics manufacturer HENSOLDT, drone software company Auterion, and ERC System.

The company was founded by Lukas Köstler, Simon Klenk and Professor Daniel Cremers, whose work originated at the Technical University of Munich. Köstler serves as CEO, Klenk as CTO and Cremers as Chief Science Officer.

Unlike conventional navigation systems that depend heavily on GPS, SE3's technology aims to provide autonomous platforms with a better understanding of terrain, obstacles and their position relative to other systems.

Funding to Support European Expansion

SE3 plans to use the new investment to expand its engineering, commercial and operations teams, strengthen its presence in Germany and Ukraine, and establish additional operations in the United Kingdom.

The company's immediate commercial focus remains defense, although it also sees potential applications in civilian robotics and emergency response.

Its investment comes as European defense manufacturers increasingly seek platform-independent autonomy software capable of operating in contested environments.

For Germany, the funding strengthens Munich's growing defense technology ecosystem, where emerging companies are developing autonomous aircraft, interceptor drones and AI-based military software.

The new financing also illustrates how venture capital is supporting technologies designed to connect existing military hardware with advanced autonomous capabilities, rather than requiring armed forces to replace entire platforms.