Poloniex - US-based cryptocurrency exchange with maximum security
MyBrocard - Brocard allows you to create an unlimited number of virtual cards for paying for advertising and other online payments, manage a team of buyers, choose from 20+ bins for various tasks, and enjoy convenient API for integrations.
Bitwise - The world’s first cryptocurrency index fund.
Coinramp - The Coinramp Card lets you spend over 10+ cryptocurrencies like cash, online, in-stores and ATM withdrawals. Available in 100+ countries, no ID needed. Anonymous Crypto Cards
Investing.com Cryptocurrency - One-stop-shop for those interested in cryptocurrencies.
PST.NET - Virtual payment cards for online shopping and advertising