Stripe Brothers Become Richest Self-Made Irish Billionaires

Patrick Collison smiles as John Collison speaks during a Bloomberg television interview in San Francisco.Photographer: David Paul Morris/Bloomberg
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John and Patrick Collison sold their first company for $5 million when they were still teenagers. Now, a little more than a decade later, their second startup is valued at $35 billion, making them Ireland’s richest entrepreneurs.

The latest valuation for their online payments processor, Stripe Inc., gives John, 29, and Patrick, 31, an estimated net worth of $4.2 billion each, according to calculations by the Bloomberg Billionaires Index, enough for inclusion in the 500-member ranking. Stripe declined to comment.