Bittrex was founded in 2014 in Seattle, USA. There is also a Bittrex International division, which is based in Europe. The list of coins and pairs is reaching hundreds which is great for many trading opportunities.
Chimere is a crypto swap and a non-custodian exchange that allows beginner/intermediate/advanced users to swap crypto-to-crypto easily, fast, and secure. Chimere welcomes and swaps your cryptocurrencies, dictated by the blockchain book before letting them navigate along the chain which restores them to his master.
Coinmate is a UK-based cryptocurrency exchange, launched in 2013. According to its official website, the exchange is aimed at Security, Speed, and Reliability.