Gate Ventures

The humanoid robot market is projected to reach $7.5 trillion by 2050 and the real money is not in the companies assembling the robots (Save this). It is in the components that every single robot on earth will need, regardless of which assembler wins. Here are the companies that benefit from each layer. Harmonic Drive Systems (HSYDF / 6324.T) controls roughly 85% of the global strain wave gear market, the compact, zero backlash gearboxes that go inside every robot joint requiring precision movement. A single humanoid robot can use 20 to 40 of these gears and there is essentially no substitute at scale. That is one of the most durable monopolies in any hardware supply chain right now. Nabtesco (NCTKY / 6268.T) holds roughly 60% of the cycloidal reducer market, the heavy-duty version of the same type of gearbox used in the legs and load-bearing joints. Its operating profit rose 60% year over year as humanoid and industrial robot orders surged. Schaeffler AG (SFHLF) is rapidly becoming one of the most important actuator suppliers in this space, signing strategic partnerships with multiple humanoid robot makers to supply both strain wave and planetary gear actuators. Schaeffler manufactures all components in-house, which gives it both margin control and supply chain reliability that competitors cannot easily replicate. Nidec (NJDCY / 6594.T) is the world's largest electric motor company and is building out a full integrated 6-axis humanoid motion solution combining the motor, gearbox, and controller into a single unit. At $2.6 trillion yen in annual revenue, it has the scale to be a dominant supplier as humanoid volumes ramp into the millions. Ambarella (AMBA) is the edge AI chip company that processes the visual data directly on the robot, without needing a cloud connection. Its CV7 chip, launched at CES 2026 on a 4nm process, is designed specifically for the multi-sensor perception workloads that humanoid vision systems require and it runs at a fraction of the power of conventional solutions. Yaskawa Electric (YASKY / 6506.T) recently acquired Tokyo Robotics and saw its operating profit rise roughly 70% in its most recent fiscal year as it pivots aggressively toward the humanoid supply chain. It is one of the few companies globally that can supply precision motion components at industrial scale already today. The pattern across all of these names is the same. They are not betting on one robot company winning but rather sell to all of them, they have structural supply constraints working in their favor and the volume ramp from 2027 onward will flow directly through their order books. Milk Road is tracking every layer of the humanoid robot supply chain, from the memory inside the brain to the gears inside the joints and the companies positioned to win before the mainstream catches on. Come join Milk Road Pro and get our full analysis every day using the link below!