Sitegeist Raises €4M Funding To Bring Automated, AI-enabled, Modular Robots On Construction Sites

The investment will allow the company to rapidly expand its team and scale the deployment of its automated, AI-powered robots on real-world construction sites, helping concrete renovation companies tackle severe capacity constraints.

The funding round was co-led by b2venture and OpenOcean, with participation from prominent angel investors such as Verena Pausder, Lea-Sophie Cramer and Alexander Schwörer alongside strategic backers from the construction and robotics sectors.

With this new capital, Sitegeist plans to recruit top talent and accelerate robot deployment on job sites to address Europe’s growing renovation backlog.

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Sitegeist originated from the Technical University of Munich’s renowned robotics institute, under the leadership of Prof. Matthias Althoff.

“Infrastructure renovation is hitting a critical bottleneck, especially in concrete repair,” said Dr. Lena-Marie Pätzmann, Co-founder and CEO of sitegeist. “Today deteriorated concrete is still removed using manually-intensive processes that are hard to scale. We’re tackling this challenge with the first ever specialized automated and modular robots that can perform concrete renovation directly on existing structures. We’re thrilled to have won such renowned investors who share our mission. This backing encourages us to move faster in bringing automated renovation to critical infrastructure worldwide.”

Sitegeist was founded by Dr. Lena-Marie Pätzmann, Julian Hoffmann, Nicola Kolb, and Claus Carste, who together bring a strong blend of robotics and AI expertise along with business acumen.

Their technology leverages advanced sensors, AI-driven decision-making, and adaptive control systems to navigate complex shapes and diverse materials. The robots remove concrete using high-pressure water or abrasive blasting while protecting underlying steel reinforcement.

Built with a modular design for easy growth, the system works well in tough, unorganized construction sites without digital plans. It completes tasks faster, with better quality, less mistakes, and can be quickly deployed on real job sites.

About Sitegeist

Founded in 2025, Sitegeist develops autonomous, modular construction robots designed to tackle skilled labor shortages. Initially focused on concrete renovation, their AI-powered technology enables efficient, high-quality work on unstructured construction sites, combining speed, precision and adaptability to meet growing demand in the construction industry.