Walden Robotics, a Cambridge-based startup spun out from Toyota Research Institute, has raised $300 million to build AI-powered, partially humanoid robots designed for factory and warehouse environments2.
The company, founded this year, emerged from stealth on Wednesday with ties to both MIT and Toyota. Walden's technical foundation draws on work by MIT professor Russ Tedrake on developing AI models that allow machines to operate in real-world settings — such as car manufacturing — without direct human control.
Walden's robots feature a partially humanoid design: the upper half includes arms and a head equipped with two sensors resembling eyes, while the lower half consists of a base attached to wheels or a fixed platform. The machines are described as bright orange and white.
The $300 million round ranks as one of the largest robotics deals in the Boston area's history, trailing only fundraising rounds by autonomous vehicle company Motional, according to research firm PitchBook. The largest robotics deals nationally in recent years have gone to humanoid robot startups outside Boston, including California-based Figure and Texas-based Apptronik.
ANALYSIS The round positions Walden as a well-capitalized entrant in the AI-powered robotics space at a moment when the company is just months old, suggesting that Toyota Research Institute's prior work and Tedrake's academic research provided a substantial technical head start before the spinout formally launched.
Walden enters a competitive field. Tesla, China-based Unitree Robotics, and Boston-area companies Boston Dynamics and Tutor Intelligence are all working on robots with humanoid or semi-humanoid form factors for industrial environments.
ANALYSIS Walden's hybrid design — humanoid upper body on a wheeled or fixed base — differentiates it from fully humanoid competitors like Figure and distinguishes it from traditional industrial arms, potentially targeting use cases where dexterous manipulation matters more than bipedal locomotion.