MarkLogic - Schema-agnostic Enterprise NoSQL database technology, coupled w/ powerful search & flexible application services
Couchbase Data Platform - Learn about the top 3 problems holding back innovation in the database world. Liberate your data and innovate without limits using a powerful data platform.
BaseX - BaseX is a very light-weight, high-performance and scalable XML Database engine and XPath/XQuery...
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.
Apache Xerces - Advanced XML parser, including support for XML Schema, DOM Level 2, and SAX.
Apache Drill - Schema-Free SQL Query Engine for Hadoop and NoSQL