ingres

Ingres presents itself as "the leading business open source database". So, it's great that such a prominent open source has just rebuilt their main site Ingres.com using a leading open source CMS: Joomla.

Ingres is a relational database developed by a commercial company called the Ingres Corporation and backed by global community of contributors.

Read more: http://community.joomla.org/blogs/community/1414-ingres.html