Raphael Certain

Raphael Certain is the founder and CEO of Clarity, a Franco-American neurotechnology company building a wearable virtual-reality headset that delivers personalized light and sound stimulation at gamma frequencies to support the aging brain. A self-taught entrepreneur who pivoted from marine biology to neurophysiology, he turned a master's thesis at the Neurodegenerative Diseases Institute in Bordeaux into a venture-backed company. By 24 he had raised more than $1.3 million, assembled an international team of 20-plus people across Paris and San Francisco, and built partnerships with leading universities in the US and UK.