Bitcoin Wallet - Bitcoin Wallet is a mobile application that allows you to send and receive digital currencies.
GDA Fund - Investment Management
Bitfinex - Bitfinex is the largest and most advanced crypto-currencies trading platform.
Blockbid - More Coins • More Trades • One Exchange
BitStamp - Provide reliable and easy to use service for companies and individuals to exchange bitcoins.
BitMex - Bitcoin's most advanced derivatives exchange