Coinbase turned a profit since 2017 and has earned $2 billion in transaction-fee revenue since its founding in 2012.
Source: https://www.coindesk.com/coinbase-has-earned-2-billion-in-transaction-fees-since-2012-says-ceo
CEO: Coinbase Has Earned $2 Billion in Transaction Fees Since 2012
October 24, 2019
CoinDesk
