The company was established in 1965, engaging in General Building Construction under the name Archipelago Builders. The office started from renting a room of a building at Rizal Avenue, Sta. Cruz, Manila and the Warehouse/Steel Shop were located at Old Samson Road, Balintawak, Quezon City. Started with a Building Contractor - Category "C" by Professional Regulations Commission, it was later recognized as a General Contractor-Class "B". In the year 1975-1976 the company doubled its personnel, rented another three (3) rooms in the same building and added another three (3) compartment warehouses and steel shop for its expanded operations for both public and private sectors. In 1977, the company was recognized as a General Engineering and General Building-Category "A", engaged in both horizontal and vertical construction.