Hans von Rettig

Strömma Turism & Sjöfart AB is one of Swedens largest adventure company. It operates a travel agency with operations in Stockholm, Gothenburg, Malmö, Riksgränsen, Hemavan Tärnaby, Copenhagen and Helsinki. The firm also offers experiences, activities and entertainment, meetings and leisure. The company was founded in 1897 by Fredric von Rettig and is headquartered in Stockholm, Sweden.

Rettig Group Oy AB manufactures hydronic and electrical heating products. It involves in the research and development, design, procurement and production, logistics, and sale and marketing of radiators, towel warmers, underfloor heating products, convectors, valves and controls. The company was founded in 1770 and is headquartered in Helsinki, Finland.