As you probably know, a new version of Bitcoin called 'Bitcoin Cash' will be created after upgrading the Bitcoin protocol as specified by the User Activated Hard Fork (UAHF).
You can find a list of the exchanges and wallets supporting Bitcoin Cash on their official website. Exchanges like Kraken, HitBTC, Bitfinex and many more can be found in the list. As I mentioned in my previous post, Bittrex is going to credit the equivalent amount of Bitcoin cash on 1:1 basis to those who have Bitcoin balance on Bittrex. However, I couldn't find Bittrex's logo on the website.
Wallets that will support Bitcoin Cash are Bitcoin ABC, BitcoinClassic, Trezor, Ledger etc.
You can find more information here.