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BrainCo, Inc. (Chinese: 强脑科技; pinyin: Qiángnǎo Kējì) is a neurotechnology company that develops non-invasive brain-computer interface (BCI) products, bionic prosthetics, and dexterous robotic hands for humanoid robots. The company was founded in 2015 in Somerville, Massachusetts by Han Bicheng (韩璧丞) while he was a PhD student at the Center for Brain Science at Harvard University, and was incubated at the Harvard Innovation Labs. In 2018 BrainCo moved its primary operations to Hangzhou, Zhejiang, China, where it is now one of the firms popularly known as the "Hangzhou Six Little Dragons" alongside DeepSeek, Unitree Robotics, DEEP Robotics, Manycore Tech, and Game Science.
BrainCo's product portfolio spans three core areas: electroencephalography (EEG) headbands for attention training, sleep, and meditation; the BrainRobotics intelligent bionic hand, which became the first non-invasive BCI-driven prosthetic hand to receive clearance from the United States Food and Drug Administration in November 2022; and a line of dexterous robotic hands branded Revo that are designed for integration into commercial humanoid robot platforms. The company's flagship Revo3 hand, released on April 9, 2026, features 21 degrees of freedom, direct-drive backdrivable joints, and full-palm tactile sensing.
| Attribute | Detail |
|---|---|
| Legal name | BrainCo, Inc. |
| Chinese name | 强脑科技 (Qiángnǎo Kējì) |
| Founded | 2015 |
| Founder and CEO | Han Bicheng (韩璧丞) |
| Headquarters | Hangzhou, Zhejiang, China |
| U.S. office | Somerville, Massachusetts |
| Asia-Pacific HQ | Hong Kong Cyberport (established September 2025) |
| Core subsidiaries | BrainRobotics, NeuroMaker STEM |
| Industry | Neurotechnology, robotics, prosthetics |
| Reported valuation | ~US$1.25 billion (Hurun Global Unicorn List 2024) |
| IPO status | Confidentially filed with Hong Kong Stock Exchange, January 2026 |
| Website | brainco.tech |
BrainCo positions itself as a non-invasive counterpart to invasive neurotechnology firms such as Neuralink, focusing on consumer-grade EEG wearables and electromyography (EMG)-driven prosthetics rather than surgically implanted electrodes. The company's marketing frequently emphasizes its Harvard origins, a claim that has attracted both attention and scrutiny from investigative outlets.
Han Bicheng arrived in the United States to pursue a PhD in neuroscience at Harvard, where he studied EEG signal processing. According to interviews Han has given to Chinese and English-language media, he washed his hair between 400 and 500 times a year while applying conductive paste for laboratory electrodes, an experience that motivated him to build dry, consumer-friendly EEG hardware. Han took a leave from his doctoral program to co-found BrainCo in 2015, setting up the company in Somerville, Massachusetts, and registering as a participant in the Harvard Innovation Labs accelerator. The company raised approximately US$5.5 million in seed funding in 2016 to develop its first product, the Focus 1 headband.
In 2017, BrainCo closed a Series A round of approximately US$15 million that included China Electronics Corporation, Everbright Holdings, DeXun Capital, and CDH Investments, pushing the company's reported post-money valuation to about US$400 million. A same-year press release described a purchase order framework worth hundreds of millions of dollars from Chinese education partners, which the company characterized as the largest order in the BMI industry at the time. James Edward Ryan joined BrainCo's advisory board in 2017.
In 2018, BrainCo moved its center of gravity to Hangzhou in Zhejiang province, where local government programs offered tax incentives and subsidies for AI and hardware startups. The company began distributing Focus 1 headbands, rebranded for the education market as Focus EDU, to schools across China. BrainCo has said that the devices measure EEG signals to provide teachers with an aggregated "attention index" for each student during class.
In April 2019, a Weibo post showing rows of Chinese primary school students wearing Focus EDU headbands went viral, drawing international press coverage and comparisons to dystopian mass surveillance. Critics argued that compelling children to wear brain-monitoring devices risked habituating them to invasive data collection; BrainCo replied that the headbands only report aggregated focus scores and do not extract "thoughts." On October 31, 2019, the local education bureau in Zhejiang province asked schools to conduct self-inspections to verify that headband data could not be leaked, and several schools suspended their programs shortly afterward. An online survey run by China's Economic Daily reported that 88 percent of roughly 3,362 respondents considered the technology unnecessary or unacceptable in classrooms.
BrainCo unveiled the final consumer model of its BrainRobotics intelligent bionic hand at CES 2020 in Las Vegas, where it won a CES Innovation Award in the "Top Tech" category. Time magazine had already included an earlier version of the device in its list of the 100 Best Inventions of 2019. The hand launched commercially in 2020 at a retail price in the US$10,000 to US$15,000 range, substantially below the US$40,000 to US$60,000 price band that is typical for comparable multi-articulating myoelectric prosthetics. On November 7, 2022, the BrainRobotics hand received 510(k) clearance from the U.S. Food and Drug Administration, which the company described as the first FDA clearance for a non-invasive BCI-based prosthetic.
Alongside its consumer prosthetics, BrainCo expanded into hand modules for third-party humanoid robots. It launched the Revo2 dexterous hand on September 16, 2025, targeting embodied-AI developers, followed by the more advanced Revo3 on April 9, 2026.
In August 2025, BrainCo was reported to be in talks to raise funds ahead of an initial public offering at a valuation of approximately US$1.3 billion. The company opened an Asia-Pacific headquarters at Hong Kong Cyberport in September 2025. In January 2026, Bloomberg reported that BrainCo had filed confidentially for a Hong Kong Stock Exchange listing, placing it on track to be the first of the "Hangzhou Six Little Dragons" to trade publicly in the BCI sector.
| Product | Year | Primary use | Notes |
|---|---|---|---|
| Focus 1 | 2016 | Attention training | First product; dry-electrode EEG headband. Won "Most Innovative" at ISTE 2017. |
| Focus EDU | 2017 to 2019 | Classroom attention monitoring | Distributed to Chinese primary schools; suspended after 2019 controversy. |
| FocusCalm | 2021 | Consumer meditation | Rebranded Focus hardware repositioned for relaxation and stress reduction. |
| Easleep | November 7, 2022 | Sleep monitoring and assistance | EEG-based sleep-aid headband combining cranial electrotherapy stimulation and binaural-beat audio. |
| OxyZen | October 2024 | Meditation, sleep, and recovery | Combines EEG with heart-rate and blood-oxygen sensors for guided wellness sessions. |
The BrainRobotics hand is a multi-articulating myoelectric prosthetic hand designed for upper-limb amputees. It uses eight multichannel surface-EMG sensors embedded in the socket to read muscle signals from the residual limb, and an onboard machine-learning model that individualizes gesture recognition to each wearer through repeated use. The company reports that the hand supports an open set of grips, with firmware updates adding new gestures over time.
Key facts:
BrainRobotics has also demonstrated prosthetic lower-limb prototypes beginning in 2021, although those products have not been commercialized at scale as of 2026.
In 2025, BrainCo extended its hand-engineering work beyond prosthetics and into modular end-effectors for humanoid and industrial robots. The Revo family is positioned as a supplier-grade hand that robotics integrators can bolt onto humanoid platforms from third parties.
The Revo2 was launched on September 16, 2025.
| Specification | Value |
|---|---|
| Weight | 383 g |
| Dimensions | 16 × 7.6 cm (comparable to an adult female hand) |
| Degrees of freedom | 11 DOF (6 active) |
| Grip force | 50 N |
| Payload | 20 kg (grip-to-weight ratio ~52.6) |
| Positional precision | 0.1 mm |
| Sensing | 3D tactile sensors detecting pressure, hardness, texture, force direction, and proximity |
| Interfaces | RS-485, CAN FD, EtherCAT |
| Input voltage | 9 to 64 V |
| Acoustic noise | Below 50 dB |
| Variants | Basic, Pro, and Touch (Touch adds multimodal tactile sensing) |
The Revo3 was released on April 9, 2026. A short promotional video showing the hand playing cat's cradle, solving a Rubik's Cube, and manipulating fidget spinners was widely circulated on social media in April 2026, including by Xinhua News journalist Li Zexin, who described it as "as agile as real hands."
| Specification | Value |
|---|---|
| Weight | 0.43 kg |
| Degrees of freedom | 21 DOF |
| Fingers | 5 |
| Actuation | Direct-drive, backdrivable micro-actuators |
| Fingertip pinch force | 20 N |
| Open-close cycle rate | 3 Hz |
| Control frequency | 500 Hz |
| Control modes | Position, impedance, MIT force-position, zero-torque |
| Tactile sensing | Full-palm tactile at 0.01 N resolution; fingertip visuotactile detecting ~130 µm deformation |
| Grasp types | 33 standardized grasp patterns |
| Range of motion | Reported to exceed human hand range in Kapandji testing |
| Interfaces | EtherCAT, CAN FD, RS-485 |
| Input voltage | 12 to 80 V |
| Listed price | Approximately US$8,000 per unit (humanoid.guide listing) |
The Revo3 is aimed at research labs and humanoid-robot integrators rather than individual consumers. Compared with the Revo2's 11 DOF geared design, the Revo3 moves to direct-drive actuators that allow backdrivability, a property that is useful for compliant manipulation and for teleoperation workflows in which a human operator's forces need to be reflected back through the hand. Full-palm tactile sensing is a relatively unusual feature among commercial robotic hands in 2026, with most competitors limiting tactile coverage to the fingertips.
NeuroMaker is BrainCo's educational-hardware subsidiary that sells simplified BCI and prosthetic kits to schools and universities for STEM coursework. Products include a single-channel EEG kit and a bench-top myoelectric hand designed as a teaching tool for courses on biomedical signal processing.
In late 2021, BrainCo announced clinical trials of an EEG-plus-software autism intervention through its Cambridge StarKids Autism Rehabilitation Center. The system pairs a consumer EEG headband with computer-delivered exercises intended to give therapists a real-time readout of a child's attentional state during behavioral therapy. StarKids has not, as of 2026, received independent peer-reviewed efficacy validation comparable to established evidence-based autism interventions, and independent clinicians have cautioned that EEG attention scores are a proxy measure rather than a diagnostic.
| Round | Year | Approximate size | Notable investors |
|---|---|---|---|
| Seed | 2016 | US$5.5 million | Early-stage venture investors |
| Series A | 2017 | US$15 million | China Electronics Corporation, Everbright Holdings, DeXun Capital, CDH Investments |
| Later rounds (aggregated) | 2019 to 2023 | undisclosed | Strategic and private-equity investors |
| Pre-IPO funding talks | 2025 | up to ~US$1.3 billion valuation | Reported by Bloomberg and TMTPost |
| Hong Kong IPO filing | January 2026 | confidential | IDG Capital and Walden International reported among earlier backers |
According to the 2024 Hurun Global Unicorn List, BrainCo was valued at approximately 8.5 billion yuan, or roughly US$1.25 billion.
The Focus EDU school deployments triggered sustained criticism in 2019 from parents, privacy advocates, and Chinese state media outlets, who argued that headbands displaying per-student attention scores on classroom leaderboards could expose children to punitive management of their internal mental states. BrainCo has said that it does not store raw EEG data remotely in classroom products and that scores are aggregated, but the company has not published a peer-reviewed independent validation of its attention classifier.
Independent researchers have questioned how accurately a low-channel dry-electrode EEG headband can distinguish "attention" from unrelated physiological signals such as jaw clenching, head motion, or drowsiness. A 2018 Harvard Business School Digital Innovation and Transformation case study questioned whether Focus headband outputs reflect cognitive attention or primarily movement and muscle artifacts.
In September 2025, the investigative outlet Hunterbrook Media published a report examining BrainCo's marketing of its "Harvard" origins, its relationships with Chinese government-linked investors, and the handling of EEG data collected from Chinese schoolchildren and, according to the report, from U.S. Olympic athletes. BrainCo disputed several characterizations in the report.
| Company | Approach | Flagship product | Invasive? |
|---|---|---|---|
| BrainCo | Non-invasive EEG and EMG | Focus headbands, BrainRobotics hand, Revo3 | No |
| Neuralink | Fully implanted cortical electrodes | N1 implant | Yes |
| Synchron | Endovascular stent-electrode | Stentrode | Yes (minimally) |
| Kernel | Non-invasive magnetoencephalography and functional near-infrared | Flow, Flux | No |
| Emotiv | Consumer EEG headsets | Insight, EPOC X | No |