Kaj Sigurd Ademar Arnö

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.

Carus Ferry Ab Ltd. provides information technology solution services. It offers ferry solutions that include booking, ticketing and payments, check-in and boarding, automation and integration services to the ferry and cruise operators. The firm provides finance and business process management solutions to banking, insurance, trade, manufacturing, public sectors, transports, shipping and tourism sectors. The company also offers business intelligence and consulting services. Carus Ferry Ab was founded by Thor A. Rundberg in 1997 and is headquartered in Mariehamn, Finland.

Carus Ab Ltd. provides information systems for the travel and transport industry. It offers reservation and departure control solutions, as well as port, on-board and business intelligence services for passenger shipping operators. The company was founded by Thor Anders Henning Rundberg in December 1998 and is headquartered in Mariehamn, Finland.

Sun Microsystems, Inc. provides network computing infrastructure solutions. It offers its solutions under the Java technology platform, Solaris Operating System, MySQL database management system, Sun StorageTek storage solutions, and UltraSPARC processor brands. The company also develops networking computing products and technologies which include servers, storage, open source software, tools, and training. The company provides solutions to the social networking, entertainment, financial services, manufacturing, healthcare, retail, news, energy, and engineering companies. The company was founded in 1982 and is headquartered in Santa Clara, CA.

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.