Turning seven lines of code into a $9.2 billion startup

In 2010, Patrick and John Collison, brothers from rural Ireland, began to debug this process. Their company, Stripe Inc., built software that businesses could plug into websites and apps to instantly connect with credit card and banking systems and receive payments. The product was a hit with Silicon Valley startups. Businesses such as Lyft, Facebook, DoorDash, and thousands that aspired to be like them turned Stripe into the financial backbone of their operations.

This is a great read. They have done exceptionally well in a cut-throat business.