We are actually dealing with HitBTC, Bittrex and Crex24. But we have proposals from Yobit and others too, I won't list all the names.

The thing is that each has its own constrains in term of traffic and prices. Some are very very expensive and out of our reach. It seems that the crypto is becoming more and more the opposite of what Natoshi Sakamoto wanted.
So we are looking at something that will be scalable in the future and do not ask millions to be listed (with fine prints that you can be delisted anytime for obscure reasons).
Lot of scams running around, and sometime in well established and popular exchanges...