Investment Stage

Focus Areas

About Investor

Bryan Johnson is the Founder of OS Fund, where he invests in breakthrough science and frontier technologies. His investment focus includes biotechnology, AI, healthcare, food innovation, and material science across Pre-seed, Seed, and Series A stages. OS Fund typically invests between $1M and $2M in companies developing transformative technologies. Before founding OS Fund, Johnson founded Braintree, the payments company acquired by PayPal, and later launched Kernel, a neurotechnology company. He is widely known for backing science-driven companies with long-term societal impact.