Incorporated in December 1973 as a wholly owned subsidiary of Manila Electric Company (Meralco), the Philippines' largest electric utility firm, MIESCOR has chalked up an exemplary record of engineering performance backed up by a pool of highly competent technical manpower. For more than forty-five (45) years, the company has amassed a wealth of experience in power generation, transmission and distribution, petrochemical/chemical and industrial plants, water resources, transportation and telecommunication system, and building services. It holds the highest contractor license Category AAAA by the Philippine Contractors Accreditation Board (PCAB).