"Based in San Francisco, Kraken is the world's largest global digital asset exchange based on euro volume and liquidity. Globally, Kraken's client base trades more than 60 digital assets and 7 different fiat currencies, including EUR, USD, CAD, GBP, JPY, CHF and AUD. Kraken was founded in 2011 and was the first U.S. crypto firm to receive a state-chartered banking license, as well as one of the first exchanges to offer spot trading with margin, regulated derivatives and index services. Kraken is trusted by more than 7 million traders, institutions and authorities around the world and offers professional, round the clock online support." San Franciso, Silicon Valley, yeah!
Estonian located, very goood choice for CEE people. Very complex customer verification. Very simple and easy to use, Android APP available. Disadvantages: limited number of currency types. Former name: Bitbay.net
"The world’s most comprehensive trading platform with leverage, long & short positions, margin trading, staking and PAMM (social trading)." BTC, ETH, GEC & USDT, 100x leverage on all assets, Negative balance protection.
F. legend founded in December 2012 Bitcoin exchange, had big impact on cryptocurrency market. These days it is full armed centralized exchange with trading, lending, derivatices, securities, Lightning Node and more advanced functionality for crypto hardcore users. As many early crypto ventures, it had many collision with laws and even 2021 have lawsuit form CFTC for illegal operations (Wikipedia). Tether stablecoin (USDT) had closely association with Bitfinex until feb 2022.