What kind of that platform? Is that Trading platform? I never heard about it. If you looking for trading platform to trade in the spot market, the best one will be Binance, HitBTC, Bittrex, Poloniex and for margin trading will be Bitmex and FXopen.
You don't know what the OP is talking about, otherwise, you wouldn't have made such suggestions. He isn't looking for crypto exchanges to trade, he is looking about a platform that can be used to build an exchange. Google ASM Brain to understand.
Binance, HitBTC and the others you mentioned are not selling any product to build an exchange