List of Bitcoin exchanges and wallets with information about supporting Bitcoin Gold
Bitfinex is supporting BTG and has already credited Bitcoin holders with our BTG. Post is here.
Bittrex supprting, but deposits closed already. Their post here.
Bitstar has announced their support for BTG on their announcement post here.
Poloniex might distribute BTG depending on the replay protection fix, they posted today about it here.
Gemini no statement about it yet
Mercatox no statement yet
Wex no statement about BTG yet
Ledger Nano S no statement about it yet, but there are reports that as long as your BTC are stored in “legacy” or “segwit” wallets then once replay protection is setup for BTG then you’ll be able to redeem your BTG tokens.
Mtgox is not supporting Bitcoin Gold