Investor AB is a Swedish investment and holding company, often considered a de facto conglomerate. One of Sweden's largest companies, Investor AB serves as the investment arm of the prominent Swedish Wallenberg family; the family's companies are involved in a variety of industries, of which the primary industries are pharmaceuticals, telecommunications and industry. Investor AB is Sweden's most valuable publicly traded company; it has major or controlling holdings in several of Sweden's other largest companies. It has numerous investments worldwide through Patricia Industries and EQT AB. Wikipedia