MySQL is the world's most popular open source database. With its proven performance, reliability and ease-of-use, MySQL has become the leading database choice for web-based applications, used by high profile web properties including Facebook, Twitter, YouTube, Yahoo! and many more.
Couchbase is the company behind the Couchbase open source project, a vibrant community of developers and users of Couchbase document-oriented database technology. Their flagship product, Couchbase Server, is a packaged version of Couchbase technology that’s available in Community and Enterprise Editions. They're known for their easy scalability, consistent high performance, 24x365 availability, and a flexible data model. Companies like AOL, Cisco, Concur, LinkedIn, Orbitz, Salesforce.com, Shuffle Master, Zynga and hundreds of others around the world use Couchbase Server for their interactive web and mobile applications.
EnterpriseDB is the leading worldwide provider of Postgres software and services that enable enterprises to reduce their reliance on costly proprietary solutions and slash their database spend by 80 percent or more. With powerful performance and security enhancements for PostgreSQL, sophisticated management tools for global deployments and database compatibility, EnterpriseDB software supports both mission and non-mission critical enterprise applications. More than 2,500 enterprises, governments and other organizations worldwide use EnterpriseDB software, support, training and professional services to integrate open source software into their existing data infrastructures. Based in Bedford, MA, EnterpriseDB is backed by top-tier venture capitalists and strategic investors like Red Hat and IBM.