Started in 2014, GateHub is a UK-based cryptocurrency exchange that uses Ripple (XRP) as a form of digital coin for trading and moving money across the so-called Ripple network, but claims that it is a business independent from Ripple.
Apart from Ripple, at GateHub you may also trade in popular coins such as Bitcoin (BTC), Ethereum (ETH) and others against several other digital coins and fiat currencies.
Gatehub has a special gateway for digital assets other than Ripple, called GateHub Fifth.