Sumac - Sumac Non-profit Software | Sumac non-profit software is an easy-to-use, affordable CRM solution that can be customized to meet the needs of any non-profit.
Charity Engine - Charity Engine takes enormous, expensive computing jobs and chops them into 1000s of small pieces...
MobileCause - Online event and fundraising management for nonprofits
BOINC - BOINC is an open-source software platform for computing using volunteered resources
Anedot - Powerful giving tools made easy for everyone
Apache Mesos - Apache Mesos abstracts resources away from machines, enabling fault-tolerant and elastic distributed systems to easily be built and run effectively.