OMG (aka OmiseGO) was built and developed on Ethereum blockchain by a company named Omise. 

OmiseGO is an open-source payment platform designed for use by financial gateways, payment processors, and financial institutions, particularly those in developing countries. Transferring coins to another blockchain without using exchange services.

At CoinField, we offer OMG with a pairing on XRP - for buy and sell.