CEX.io can be called one of the oldest exchange platform and can be used all over the world.
Today this exchange supports Bitcoin, Ethereum and the number of other currencies as well. CEX. io was established in 2013 in London as an exchange and cloud mining provider.
Altilly is a Sweden based exchange. It was launched in 2018. The exchange has a big variety of coins (about 300). Despite that variety, the liquidity of the platform is quite low, fluctuating within 80 – 100 k $ per day. Altilly exchange is not available for traders from the USA.