Kraken

Kraken generates $1.5B in revenue, serving 10M+ clients with 220+ supported cryptocurrencies — 15% more assets than #3 Gemini. Founded in 2011 by Jesse Powell, it stands as one of the oldest exchanges, with a 13-year track record of reliability. Its San Francisco base and regulatory compliance make it faster than the average exchange for high-volume traders, offering spreads as low as 0.16%.