GBX is developing a token sale platform and digital asset exchange that is designed to make traditional investors more comfortable with investing in cryptocurrencies. The Gibraltar Blockchain Exchange (GBX) is a subsidiary of the Gibraltar Stock Exchange (GSX). They hope to use their position as a regulated European exchange in Gibraltar to position themselves as a reputable option for investing in digital assets. GBX issued an Ethereum-based token called Rock (RKT).

Poloniex is an established crypto to crypto exchange that is based in the United States. It offers a large selection of tokens to trade and has high liquidity. Poloniex was hacked in 2014, and lost more than 12% of their bitcoin supply. They have improved their security protocols since then. In February, 2018 Poloniex was acquired by Circle, one of the largest crypto payment providers.

Trading Fee: 0%-0.1% Maker and 0%-0.2% Taker
Deposit Fee: Varying Depending on blockchain fees
Withdrawal Fee: Varying Depending on blockchain fees
Number of Tokens/Coins: 97

Kyber is a decentralized network and exchange that is focused on providing liquidity. Kyber enables token transactions between platforms and aims to make these exchanges of value easier, by connecting different ecosystems and applications. Kyber users can exchange tokens with greater liquidity because the network maintains a reserve of all tokens. Transactions are very fast and are processed via smart contracts that have a derivative functionality where users can hedge currencies to lower risk. Kyber can also be used make payments to anyone, in any token, across any platform. The network is powered by the Kyber token (KNC) that was released in an ICO that raised almost $49 million.