Grupo Carso S.A.B. de C.V. is a Mexican global conglomerate company owned by Carlos Slim. It was formed in 1990 after the merger of Corporación Industrial Carso and Grupo Inbursa. The name Carso stands for Carlos Slim and Soumaya Domit de Slim, his wife. In May 2014, the conglomerate had a stock market capitalisation of over $12 billion US dollars. In 1996, Carso Global Telecom separated itself from Grupo Carso. Wikipedia