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.

BOINC - BOINC is an open-source software platform for computing using volunteered resources

Moon Virtual Cards - Purchase Moon Visa® Prepaid Cards with crypto. Pay at millions of online merchants with secure virtual cards.

Apache Mesos - Apache Mesos abstracts resources away from machines, enabling fault-tolerant and elastic distributed systems to easily be built and run effectively.

ABcard - ABcard - service allows you to issue an unlimited number of cards to pay for advertising accounts. 3 unique BINs for any work tasks, management of a team of media buyers inside a personal account and complete anonymity when paying for traffic.

JPPF - The open source grid computing solution.