All3 raises $25m to automate construction with legged robots and AI design software
All3, a London-founded startup, has raised $25 million in seed funding to automate construction using legged robots and AI design software. The company claims its end-to-end system can reduce costs by up to 30%, timelines by up to 50%, and embodied carbon by up to 25%.
All3, a European construction robotics startup, has secured $25 million in seed funding led by RTP Global. The company aims to replace the traditional construction value chain with an end-to-end system comprising AI-powered design software, robotic factories, and a legged robot called the Mantis. All3's system fabricates custom timber composite components with 0.2mm precision and assembles them on-site. The startup claims its approach enables significant cost, timeline, and carbon savings. The funding will be used to advance R&D and deploy the robot fleet in Germany, All3's initial launch market. A first building is due to break ground in Germany later in 2026.
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