Tokyo-based humanoid robotics startup Atom has closed a 3 billion yen (about $19 million) seed round to build what founder Shunsuke Aoki calls a "new species" of bipedal robots tuned for Japan's factories, warehouses and logistics yards. The round was co-led by ANRI, Beyond Next Ventures and JAFCO Group, with participation from ALPHA, JIC Venture Growth Investments, Sumisho Venture Partners, Blue Lab, Mitsubishi UFJ Capital and SMBC Venture Capital.
A Tokyo Bet on Physical AI
Atom is developing two-armed, two-legged humanoid platforms paired with its own physical AI stack — software that allows machines to perceive, reason about and act in the unstructured world that surrounds people, not the bolted-down cells that surround traditional industrial arms. Aoki, a serial entrepreneur who founded the company in November 2025, framed the bet bluntly: "The humanoid robot industry is an industry that someone in Japan has to establish. We have chosen to be that 'someone.'"
Where the Capital Goes
The funding will be used to recruit AI and hardware engineers, expand development infrastructure and stand up a dedicated data collection centre to feed Atom's models. The company also plans to vertically launch the design of a global production model and the build-out of a supply chain capable of supporting future mass production.
Japan Races to Catch China
Atom's announcement lands as Japan tries to close the humanoid gap that has opened with China and the United States. Chinese player Unitree just paired its H2 Plus humanoid with NVIDIA's Isaac GR00T platform, while U.S.-based Apptronik closed a fresh $520 million Series A extension at a $5 billion valuation to scale its Apollo robot. Established Japanese carriers are now testing rivals on home turf, including Japan Airlines' Haneda Airport trial of Unitree humanoids through 2028.
Manufacturing And Logistics First
Atom said its initial deployments will focus on manufacturing and logistics — two sectors hit hardest by the country's structural labour shortages. The company is starting with a dual-arm bipedal prototype and a proprietary AI model, with mass production planned as the platform matures. The seed round gives Atom roughly two years of runway to prove the architecture before chasing a Series A.
Reporting based on coverage from AI Insider and PR Times.