bitcoin-only
(2)
Alexander Leishman
Alexander Leishman is the Founder, CEO, and CTO of River, a Bitcoin-only financial institution built to provide brokerage, custody, and mining services to individuals and institutions. With a background spanning aerospace engineering at the University of Maryland, computer science at Stanford, and security engineering at Airbnb, Leishman co-founded River in 2019 after stints at MaiCoin, Deloitte, and Polychain Capital. River has raised over $17.7 million in venture funding and became the first Bitcoin-only exchange to publicly release its financial statements in April 2025. Leishman also serves on the board of Brink, a Bitcoin research and development nonprofit.
River
River is a San Francisco-based, bitcoin-only financial services company offering brokerage, custody, mining, and Lightning Network infrastructure. Founded in 2019 by Alex Leishman and Andrew Benson, River serves individuals and businesses who want to buy, hold, earn yield on, and transact with bitcoin from a US-regulated, transparent, full-reserve institution.