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Crypterum is the next generation electronic currency trading platform, created by a team of Russian IT professionals working in the industry since 2005.
Zebpay is a centralized cryptocurrency exchange established in 2014. With its help, one can buy/sell 6 crypto coins for euro as well as trade with 5 crypto-to-crypto pairs. 
LiteBit has been operating since 2013 and is part of the structure of 2525 Ventures B.V. On the LiteBit platform there is a fairly large number of coins, and not only the most popular. Currently, the exchange supports about 51 digital coins. Also, LiteBit was awarded the title of the best crypto broker 2019.