Bridge Neurotech raises $13.5M to read brains with ultrasound, no implant

Bridge Neurotech came out of stealth on Tuesday with $13.5M in funding. It plans a brain-computer interface that needs no surgery and no implant. The startup wants to use ultrasound to read brain activity through the skull. It also signed a research deal with Butterfly Network, which makes chip-based ultrasound devices.

General Catalyst, reMind Capital, Sunflower Capital and Scott Sandell backed the round, Will Biederman wrote in a founder’s letter. WIRED, which reported the launch first, said Bridge plans a…