%20(15088695584).jpg?width=512)
John Collison became a teenage entrepreneur in Ireland, sold an early software company with his brother Patrick and then cofounded Stripe, where he became president and a major owner of the payments platform. [1][2]
A teenage exit before Stripe
Collison grew up near Limerick, Ireland, where his parents ran a lakeside hotel. He learned to code with his brother Patrick and was still a teenager when they sold their first company, Auctomatic, for about $5 million in 2008. [1][2]
John enrolled at Harvard while Patrick was studying at MIT, and the brothers began working on a simpler way for internet businesses to accept payments. They left college to build Stripe, which processed its first payment while the brothers were traveling in South America. [1]
Stripe grew into one of the world's most valuable private financial-technology companies, with John serving as president and retaining a large founder stake. His fortune therefore comes from software companies he helped create rather than from inherited capital or an established family business. [1][2]
Stripe's private valuation represents the whole company rather than John Collison's personal balance sheet. Shared founder ownership and outside financing mean his wealth is tied to the stake he retained after dilution, not the full enterprise value attributed to Stripe. [1][2]
Sources for background
Sources reviewed Sep 15, 2026.
- John Collison · Forbes · Mar 10, 2026
- Stripe · Forbes · Feb 19, 2026
Comparable Technology billionaires
Similar Technology billionaires by estimated net worth.
.jpg?width=512)
