Philip Morris Companies, now known as Altria Group, Inc., is an American corporation primarily known for its production and marketing of tobacco products. Founded in 1847, the company has evolved over the years and expanded its portfolio to include various brands, such as Marlboro and Virginia Slims. In addition to traditional tobacco products, Philip Morris has invested in alternative products, including e-cigarettes and heated tobacco devices, in response to changing consumer preferences and regulatory pressures. The company aims to transition towards a smoke-free future while maintaining its position in the global tobacco market.