Slim was also on the Board of Directors of Alcatel. Slim currently sits on the Board of Directors for Philip Morris International. He was on the Board of Directors of SBC Communications until July 2004, when he quit to devote more time to the World Education & Development Fund, which is focused on infrastructure, health and education projects. In 1997, just before the company introduced its iMac line, Slim bought 3% of Apple Inc.'s stock.
In 2008 it was reported that Slim had shown an interest in buying the Honda Formula One team.