Coinbase - Bitcoin, safe and easy.
Braintree - An all-in-one solution to accept, process, and split payments in your mobile app or online - from small business to large enterprise.
Binance - Cryptocurrencies exchange platform
ProPay - ProPay is a multiple payment making service provider that lets its users to make payment to anyone in any part of the world.
Poloniex - US-based cryptocurrency exchange with maximum security
XE.com - XE.com Inc. (XE) is a Canadian online foreign exchange services company.