Investor AB is a Swedish investment and de facto conglomerate holding company. It was founded in 1916 and is still controlled by the Wallenberg family through their Foundation Asset Management company FAM. The company owns a controlling stake in several large Swedish companies, with smaller positions in a number of other firms.
Investor AB was established by the Wallenberg family in Stockholm in 1916 when new Swedish legislation made it more difficult for banks to own stocks in industrial companies on a long-term basis. The shareholdings of the family bank, Stockholms Enskilda Bank (SEB today), were transferred to Investor AB, a newly formed industrial holding company spun out of the bank.