Bit-Z is a Hong Kong-based cryptocurrency exchange that was launched towards the end of 2016. It is one of the top ten crypto exchanges around the world in terms of the reported trading volume.
Bisq exchange was launched back in 2014. At that time it was one of the first Decentralized Autonomous Organizations (or simply DAO). According to the founders of this exchange, one of the goals of Bisq network is to "keep the original spirit of Bitcoin alive".
CRXzone is the brand name for crypto exchange and merchant payment gateway. Trading pairs available with CRXzone include fiat currencies: USD (US dollar) and SGD (Singapore dollar). The exchange aims to provide deep liquidity.