Empresas Publicas de Medellin E.S.P. (EPM) is the parent company of an economic group of 44 companies with presence in Colombia, Chile, El Salvador, Guatemala, Mexico and Panama. EPM is an industrial and commercial government-owned company founded on August 6, 1955 in Medellin and operates in the Power and Water sectors (electricity generation/transmission/distribution and natural gas distribution; water and sewage services).