alberto alcocer torra (born december 17, 1942, in madrid, spain) is a spanish businessman. he is owner, with his cousin alberto cortina, of alcor holding, a patrimonial society owner of 12.5% of grupo acs, the major spanish construction company, and of 21% of the wastebasket company, ence. as of march 2011, according to forbes, he is ranked 13th richest in spain and 993rd globally with an estimated net worth of $1.2 billion.