Stephen Oskoui co-founded Gigafund with Luke Nosek after working together at Founders Fund, where they positioned themselves as "Elon's investors" by repeatedly backing Musk-led companies like SpaceX, The Boring Company, and Neuralink with concentrated, multi-stage capital. He backs what he calls "Gigascale Founders"—first-principles builders with multi-decade ambitions who tackle extremely hard, full-stack problems like atomically precise manufacturing or reimagining insurance, filtering investments through this distinctive lens rather than conventional founder-market fit.