Patrick Collison — Irish Teen to Stripe Billionaire

Collison and his brother John dropped out of MIT and Harvard respectively to build Stripe — now valued at $65 billion and processing $1 trillion+ in annual payments. Patrick became a billionaire at 31 and Ireland's youngest self-made billionaire. They grew up in rural Tipperary (population 300) and taught themselves to code. Patrick won a young scientist competition in Ireland at 16 before leaving for MIT. Two brothers from a village smaller than most high schools now run the payment infrastructure behind Amazon, Google, and Shopify. The most understated origin story on this list.