Ulf Michael Widenius

Open Ocean Capital Oy (Open Ocean) is an venture capital firm founded in 2008 by Patrik Olof Backman. This firm is headquartered in Helsinki, Finland.

MariaDB Corp. Ab provides open source database products. It is a database company that supports the adoption of MariaDB - an open source database. The firm's product is available in the software repositories of Linux distributions including Red Hat Enterprise Linux, Centos, Debian, and Ubuntu. It also provides MariaDB Enterprise and MySQL subscription services; a range of services from architecture planning to database migration and performance tuning; training focusing on MariaDB and MySQL; and remote database administration services. The company was founded by David Axmark, Michael Widenius, Patrik Olof Backman, Max Mether, and Kaj Sigurd Ademar Arn? in 2010 and is headquartered in Espoo, Finland.

Vaadin Oy delivers and builds Java based business applications for web. The firm offers Vaadin Framework, a Java framework for building web applications and also provides commercial add-on components and tools. Its services include training courses, user interface design, and proof of concept, project kickstart, theme design, scalability assessment and quality review. The company was founded by Joonas Juhani Lehtinen, Jani Laakso, and Jurka Rahikkala in 2001 and is headquartered in Turku, Finland.

MySQL AB develops and markets open source database server software solutions. Its products include MySQL Standard Edition, MySQL Enterprise Edition, and MySQL Cluster. The company was founded by David Axmark, Allan Larsson, and Michael Widenius in 1995 and is Headquartered in Solna, Sweden.