Sitegeist raises €4M pre-seed funding to bring automated, AI-enabled, modular robots on construction sites

Sitegeist, a Munich-based construction robotics startup, has raised 4 million euros in a pre-seed funding round. The funding was announced February 16, 2026. The funding will enable rapid team expansion through hiring and scale the deployment of its automated, AI-enabled robots on real-world construction sites. This will help concrete renovation companies overcome acute capacity constraints. The robots operate directly on existing structures using advanced perception, AI-based decision support, and adaptive control. Dr. Lena-Marie Pätzmann, co-founder and CEO of Sitegeist, said deteriorated concrete removal remains manually intensive and hard to scale. The company is developing the first specialized automated and modular robots for this purpose. Lead investors include b2venture and OpenOcean. Additional investors are Alexander Schwörer, Mario Wettengel, and angel investors including Verena Pausder, Lea-Sophie Cramer, Andreas Kupke, Sven Degener, Inga vom Holtz, and Paolo Oppelt. Sitegeist is a spin-out from Technical University Munich. The founders are Dr. Lena-Marie Pätzmann, Claus Carste, Julian Hoffmann, and Nicola Kolb.