DigitalOcean - Simplifying cloud hosting. Deploy an SSD cloud server in 55 seconds.
MarkLogic - Schema-agnostic Enterprise NoSQL database technology, coupled w/ powerful search & flexible application services
Rackspace - More than 100,000 businesses trust Rackspace with their hosting and cloud computing. Get cloud, managed and hybrid hosting all backed by Fanatical Support.
Qizx - XML Databases
Redis - Redis is an open source in-memory data structure project implementing a distributed, in-memory key-value database with optional durability.
Apache Xerces - Advanced XML parser, including support for XML Schema, DOM Level 2, and SAX.