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.
Ad6 Media - Ad6 Media is an advertising network offering publisher networking and advertisement optimization solutions.
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
BuySellAds - BuySellAds.com Online Advertising Network
PST.NET - Virtual payment cards for online shopping and advertising
Swoop - Swoop is a closed loop marketplace, providing a direct relationship between advertiser and publisher.