Ratos is a Swedish listed company that owns and develops Nordic companies. Ratos's history began in 1866 when the trading company Söderberg & Haak was formed to trade as a wholesaler of iron and steel products. Förvaltningsaktiebolaget AB Ratos was formed in 1934 and Ratos was listed on the stock exchange in 1954 as a mixed investment company. The Söderberg family have been committed and far-sighted owners throughout the 150 years. The company's business strategies are characterized by a long-term approach combined with modern thinking and a focus on developing and creating value. Ratos wants to document these 150 years of long-term and successful operations through one of the most historically interesting epochs in Swedish industry and business. There are a number of books already written, focusing on different time periods and on members of the Söderberg families. This book is intended to depict, above all, the development of the company Ratos in an international perspective, over the entire 150-year period.