Stripe

The world's biggest fintech is also big into crypto. Founded in 2010 by brothers John and Patrick Collison, Stripe's valuation reached $159 billion in the company's most recent tender offer to employees. The company, headquartered jointly in San Francisco and Dublin, has built out a suite of products, including online payment options, checkout technology, billing software, and more.

Among its peers, Stripe was an early mover in digital assets, unveiling a tool in 2014 for merchants to accept Bitcoin. Although the fintech shut down its Bitcoin payments option in 2018, the company didn't turn its back on digital assets. In 2024, Stripe signed a deal to acquire the stablecoin startup Bridge for $1.1 billion. Less than a year later, Stripe agreed to buy the crypto wallet company Privy. The company's crypto bets have continued, including a recent collaboration with the venture firm Paradigm to build a high-speed blockchain called Tempo.