The company has media business in Finland and an education business in twelve European countries, including Belgium, Netherlands, Poland, Sweden, Norway, Italy and Spain.

At the end of 2023, Sanoma net sales totalled €1.393 billion and the company had approximately 5,000 employees.

[1] The story of Sanoma began in 1889 with the establishment of the newspaper Päivälehti in Finland.

SanomaWSOY was formed in 1999 with the merger of Sanoma Corporation, WSOY (Werner Söderström Osakeyhtiö; Werner Söderström Corporation) and Helsinki Media Company.

The company consists of two divisions: In October 2020, Sanoma acquired the Spanish educational publisher Grupo Santillana[2] and in 2022 the Italian and German education businesses from Pearson.