Home Synchron Secures $200 Million Series D Financing to Advance Stentrode, the World’s First Endovascular Brain-Computer Interface

Synchron Secures $200 Million Series D Financing to Advance Stentrode, the World’s First Endovascular Brain-Computer Interface

Nov 06, 2025 22:10 CST Updated 22:10
Synchron

Developer of implantable neural interface products

Double Point Ventures

Venture Capital Firms

Khosla Ventures

Venture Capital Firms

Bezos Expeditions

Venture Capital Firms

T.Rx Capital

Venture Capital Firm

K5 Global

New Media and Financial Services Consulting Firm

ARCH Ventures Partners

Healthcare Investment Firms

Neurotechnology Investors

Investment Institutions

Australian National Reconstruction Fund

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Qatar Investment Authority

National Wealth Fund

Protocol Labs

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IQT

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METIS innovative

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SynchronAnnounced Completion of NewA $200 million financing round,This RoundFinancing byLed by Double Point Ventures, with participation from ARCH Ventures, Khosla Ventures, Bezos Expeditions, NTI, METIS,Australian National Reconstruction Fund (NRF), T.Rx Capital, Qatar Investment Authority (QIA), K5 Global, Protocol Labs, and IQTCo-investment. This round of financing will be used to accelerate its first-generation brain-computer interfaceStentrodethe commercialization process and promote the research and development of cutting-edge next-generation interfaces.

Upon completion of the original financing,Synchronwith total financing reaching $345 million.

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Investor Evaluation

"Synchron is building the first truly scalable, minimally invasive brain-computer interface, which holds promise for application in everyday healthcare. By integrating neurovascular access technology, groundbreaking device engineering, and adaptive artificial intelligence, it marks a fundamental step forward in helping paralyzed patients restore digital capabilities."

---Campbell Murray  Co-Founder and Managing Partner of Double Point Ventures

"Synchron’s work is expanding the boundaries of what is possible between the human brain and technology, bringing us closer to a future in which brain-computer interfaces are poised to unlock entirely new dimensions in healthcare."

---Bob Langer  Executive Chairman of T.Rx Capital

Executive Evaluation

"We have developed the first non-surgical brain-computer interface specifically designed for the daily lives of paralyzed patients. This funding brings us closer to commercializing the Stentrode brain-computer interface platform and accelerates a major breakthrough in the field—the development of a new generation of transcatheter, high-channel, whole-brain interfaces."

---Tom Oxley Synchron CEO and Founder

Synchron’s Brain-Computer Interface Product—Stentrode—is the world’s first endovascular brain-computer interface, designed to translate brain activity into digital commands without the need for open-brain surgery. Stentrode is implanted via a minimally invasive catheter-based procedure, interacting with the brain’s motor cortex through blood vessels to record and wirelessly transmit neural signals, thereby enabling hands-free control of digital devices. To date, 10 paralyzed patients in clinical trials in the United States and Australia have received the Stentrode brain-computer interface implant.



Stentrode

StentrodeVery similar to those used for traditional cerebrovascular stents,StentrodeIt consists of a tiny stent that expands within the blood vessel to secure it in place; 16 micro-sensors are then mounted on it to capture brain activity.

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StentrodeConsisting of a nickel-titanium alloy stent (diameter 4 mm, length 32 mm), platinum (Pt) circular electrodes (diameter 750 μm, N=14; 500 μm, N=7; thickness 50 μm), and a diameter of 33 μmLead wire (92% platinum-8% tungsten, polyamide insulator)Composition.
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Platinum (Pt) circular electrodes collect neural electrical signals, andConnected to the chest via lead wiresWireless transmission system, which ultimately transmits signals to the external prosthetic limb via the wireless transmission system to control the external prosthetic limb.Exercise.
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Stentrode Demonstration



StentrodeTechnical Advantages
  • Minimally Invasive Percutaneous Endovascular Intervention—No surgical craniotomy is required. Other therapeutic devices necessitate a craniotomy for implantation, involving the removal of the skull. These devices are inserted into brain tissue, potentially causing damage, and the associated neural signals from this region may gradually diminish.
  • Short Surgical Duration----Takes only 30–40 minutes;
  • High recording capacity—each platinum (Pt) circular electrode can record electrical activity from approximately 10,000 neurons;
  • Can be transmitted via a wireless system in the chest to an external prosthetic limb equipped with a computer;
  • Safety—Implantation via the jugular vein reduces or avoids the risk of stroke.


Synchron
Synchronis an innovative medical device company dedicated to developing next-generation neuromodulation solutions.SynchronDeveloping the world's first endovascular neural interface---Stentrode
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