Patrick Collison — Stripe

Collison dropped out of MIT at 19 to build Stripe with his brother John (who dropped out of Harvard). By 2023, Stripe was valued at $65 billion — processing over $1 trillion in payments annually for companies like Amazon, Google, and Shopify. Patrick became Ireland's youngest self-made billionaire at 31. The brothers grew up in rural Tipperary and taught themselves to code. Two Irish teenagers from a village of 300 people now run the payments infrastructure that powers a significant chunk of the internet economy. That's a story even Hollywood couldn't write.