All3, a European construction-robotics startup that wants to automate everything above the foundation, has raised $25 million in seed funding to bring its integrated robotic building platform to active job sites.
One system from design to move-in
Instead of improving a single step, All3 has rebuilt the construction workflow into one connected system: an AI design platform that turns a brief or site address into a compliant building design, compact robotic factories that fabricate custom timber-composite components, and autonomous on-site assembly. The company outsources only the concrete foundation and roboticises everything above ground, claiming cost reductions of up to 30%, timelines up to 50% shorter and embodied carbon down by up to 25%.
Meet Mantis, the legged builder
At the centre of the platform is Mantis, a fully electric, four-legged robot built for the mess of real construction sites. It reconfigures its leg stance to fit through standard doorways, stays stable on uneven surfaces and staircases, and carries 100kg-plus payloads with a 4m telescopic reach. Swappable tools let one machine install, fasten, finish and inspect, and All3 says a fleet can assemble a seven-storey, 5,000m² building in three months using plug-and-play connectors that snap into place in under a minute.
Backers and expansion
The round was led by RTP Global, with strong participation from SuperSeed and additional investment from Begin Capital, s16vc and VNV Global. All3 was founded in 2023 by Rodion Shishkov and Slava Bocharov, who previously built Samokat into Russia's largest rapid-delivery platform before a $1.5 billion sale. The capital will fund R&D in London and Belgrade and deploy robot fleets to construction sites in Germany, the company's launch market, which faces a shortage of roughly 700,000 homes.
All3 lands amid a busy stretch for physical AI in the built environment. See our coverage of Built Robotics' construction physical-AI partnership, Theker's general-purpose factory robot round, and Hirebotics' no-code industrial cobots.
Reporting based on coverage from All3, Tech Funding News and RoboticsTomorrow.