Iso certified, grandspan development corporation is committed to the achievement of excellence in design, fabrication and erection of structural steel. The iso 9001:2015 certification was recently granted to gdc for its compliance to the international standards for quality management system. This certification is an affirmation of gdc's success in applying global best practices to promote continual improvement of its business processes and procedures to achieve total costumer satisfaction. The company started in 1979 at a 33-hectare compound in tagpos binangonan, rizal and is considered as one of the most equipped steel fabrication plant in asia with its state-of-the-art facilities. Today, it serves domestic and international markets and is considered unparalleled in its commitment to quality service.