MARIS is a private limited company with head office in Tonsberg, Norway a recognised centre for maritime information technology.
The company was founded in 1997 by a group of engineers who perceived a business opportunity in commercializing electronic chart systems as a replacement for the traditional paper charts in the merchant fleet and in the navy. In addition, the founders had a high degree of radar competence. Grieg Shipping Group became a shareholder in 1999 and has since 2001 been active in developing the company to what it is today.