Kantar was established in 1946 and is one of Norway's largest market research companies. The company provides most of the audience measurement systems in Norway. Kantar is responsible for the TVOV survey, which provides data on the Norwegian population's viewing habits and the TV channels' markets shares. It conducts the Consumer & Media Survey which monitors various types of media use, such as newspaper- and magazine readership. Kantar also conducts surveys of social media use and streaming services. Some results from these surveys are published on the company's web site.