Index Robotics, a Korean startup developing upper-body humanoid robots built around high-precision actuator technology, has closed a $1M (KRW 1.5 billion) seed round. Futureplay led the investment, with Bass Ventures and 500 Global co-investing.

The raise comes at a moment when manufacturers across Korea are grappling with a familiar problem: production lines are shifting toward high-mix, low-volume runs, yet many of the most demanding assembly tasks still require the kind of dexterous, precision manual work that conventional automation simply can’t handle. The result is growing appetite for robotic systems that can be dropped into existing workspaces without lengthy setup or retrofitting.

Index Robotics is taking a deliberately hardware-first stance in a field where software and AI tend to grab the headlines. The company sees joint precision, responsiveness under sustained repetitive motion, and long-run performance consistency as the real unsolved problems in humanoid robotics — and believes those challenges have to be tackled at the actuator and mechanical design level before any software layer can make a meaningful difference.

The company’s core offering consists of two things: the “IA Series,” a family of high-precision actuators purpose-built for humanoid joints, and “INDEX01,” an upper-body humanoid prototype that puts those actuators to work. INDEX01 deliberately foregoes a mobile base, keeping the form factor compact enough to slot into constrained workspaces immediately. Target applications include logistics handling, machining support, and precision assembly — the kind of repetitive industrial tasks where consistency matters most. Motion data collected from real deployments will feed a roadmap for gradually expanding AI autonomous capability over time.

Aram Jeon, Managing Director of Investment Division 2 at Futureplay, said the team’s technical profile set them apart. “Index Robotics can design humanoids that achieve both precise control and high responsiveness simultaneously — which makes them ideally suited for AI training,” she said. “We backed them because we think they can respond to the automation demands of the factory floor faster and more flexibly than anyone else in the space.”

Dong-eon Choi, Senior Team Lead at Bass Ventures, zeroed in on the data angle. “Reliable, high-quality motion data captured in precision work environments is the foundation on which robot foundation models will eventually be built,” he said. “Index Robotics has the hardware to get there.”

Hyun-mo Koo, Senior Associate at 500 Global, pointed to Korea’s structural advantage as a proving ground. “Korea is one of the best places in the world to build manufacturing references,” he said. “We invested with that global expansion story firmly in mind.”

Seung-hoon Shin, CEO of Index Robotics, put it plainly: “The biggest barrier to humanoid commercialization isn’t AI — it’s getting the hardware right. We’re focused on building robots that can hold up to what industrial environments actually demand.”

The company plans to use the funding to advance the IA Series actuator platform, push INDEX01 through prototype validation, and roll out proof-of-concept programs with manufacturers and research institutions both in Korea and abroad.