BrainCo

A Hangzhou brain-computer-interface company that extended its smart-prosthetics work into the Revo robot hand.

BrainCo was founded in 2015 by Bicheng Han, a Harvard PhD student in brain science, and is headquartered in Hangzhou with an additional office in Somerville, Massachusetts; it is one of the so-called “Six Little Dragons of Hangzhou.” Its main business is non-invasive brain-computer interfaces: headbands that read EEG (electroencephalogram) brain signals for focus- and sleep-related products, plus smart prosthetic hands and legs controlled by muscle (EMG) signals. Its connection to embodied AI comes from turning that prosthetics technology into the Revo series of robot dexterous hands, which are often mounted on humanoid robots. On funding, it was valued at more than $1.3 billion in August 2025, and reportedly raised about RMB 2 billion in January 2026 while confidentially filing for a Hong Kong Stock Exchange listing sponsored by CICC and UBS.

ExampleThe Revo 2 dexterous hand weighs about 383 grams, uses 6 motors to drive 11 degrees of freedom, and can be mounted on a humanoid robot over CAN FD or EtherCAT.

Related

BrainCo Revo Hand · Dexterous Hand · Hangzhou's Six Little Dragons · Underactuation · Humanoid Robot

Sources

Wikipedia: BrainCo
BrainCo Revo 2 参数文档 (Chinese)

As of

2026-01