Empresas ADOC is a Salvadoran shoe manufacturing company; in 1990, it was the largest manufacturer of shoes in Central America. Its headquarters are located in Soyapango. Mr. Roberto Palomo founded the firm in 1953. As of 1990, ADOC was the largest employer in El Salvador with over 3,000 employees. ADOC has retail operations, leather and rubber production and processing operations, and the only abattoir in El Salvador to be United States Department of Agriculture approved (not operational any more). As of 2005, its only U.S. location is in Gulfton, Houston, Texas.