Nexstem

At Nexstem, we’re building the Human Body API - a way to tap into the brain, body, and nervous system without ever breaking the skin. Our non-invasive technology makes it possible to read and interpret biosignals in real time, powering everything from frictionless human-computer interaction to wellness, performance, assistive tools, and cognitive training. Founded in 2020 by Siddhant and Deepansh, we began with a passion for neuroscience and a vision to make the human body machine-readable. Our journey started with non-invasive brain-computer interface devices, but has since evolved into a broader mission: decoding brainwaves, muscle signals, heart data, and more in real time. At the heart of our ecosystem is Instinct, our 19-channel dry EEG headset with onboard computing and developer-friendly SDKs. But that’s just the start. We’re now creating infrastructure for biosignal-powered applications across health, performance, research, defence, education, entertainment and everyday cognition. Recognized by CNBC, Forbes, Microsoft, NASSCOM, Inc42, Vivatech Paris, and more — our work is backed by leading neuroscientists, researchers, and global partners. We believe biosignals are the next frontier of human evolution. And we’re here to build the tools that make that future accessible. Follow our journey via NeuroTech Pulse(nexstem.substack.com) — our monthly roundup of trends, breakthroughs, and people moving the neurotech industry forward.