Loopring is an Ethereum-based decentralized exchange protocol with an automated execution. Loopring is not a decentralized exchange. It is an infrastructure that enables decentralized exchange. Loopring is designed to allow any platform that uses smart contracts to integrate. By pooling all orders sent to its network, Loopring provides maximum liquidity and optimal pricing across exchanges and platforms. One of Loopring's unique features is that users don't need to deposit funds with an exchange. Tokens remain in wallets and are not locked by orders. In addition to not requiring direct deposits, the protocol has innovative mechanisms built in that allow for a series of trades to be bound together in an order ring to fulfill each other. The orders can then be split through order sharing, where partial orders will be filled until the whole amount is completely filled. This unique automated execution feature increases liquidity.
Loopring wants to become a cross-blockhain protocol. It has plans to integrate with NEO and Qtum.

UNUS SED LEO is an initiative started by Bitfinex that is focused on increasing the exchange's transparency. UNUS SED LEO means "one, but it's a lion" in Latin. The iniatative was created to increase the transparency of the exchange's finances, following a controversy related to the allocation of reserves from the stablecoin Tether, that was created by the same parent company as the Bitfinex exchange, iFinex. It is built around a token burning redemption mechanism which is tied to the parent company's revenues. Their dashboard provides insights into the fees that are collected, and the LEO tokens that are burned.

QUOINE is a Japanese fintech company that is developing several liquidity focused trading platforms. QUOINE was the first cryptocurrency company to be officially licensed by the Japanese Financial Services Agency.
QUOINE runs 2 exchanges and a platform called LIQUID, that is designed to solve the problems related to liquidity in crypto markets. Quoinex is a fully regulated Crypto-Fiat exchange and was the first exchange to ever be audited by Deloitte. Qryptos is a crypto-only exchange.
The company's exchanges have an attractive fee structure

Trading Fee: 0 for base currency pairs, 0.25% for BTC and BHC pairs, 0.1% for ETH pairs
Withdrawal Fee: $5/5 Euros on fiat currency, Free on Crypto withdrawals
Number of Tokens/Coins: 50

QUOINE's platforms are powered by the QASH utility token.