The Diego Cera Organ Builders Inc. is a company that specializes in building organs, specifically pipe organs. Pipe organs are musical instruments that produce sound through a series of pipes that are controlled by a keyboard. The company is likely involved in the design, construction, and maintenance of pipe organs for various institutions such as churches, concert halls, and schools.

The company was founded in 1994 after organ builders Cealwyn S. Tagle and Edgar M. Montiano (1969-2002) completed their training under the Master Organ builders of Helmut Allgauer Orgelbau in Grunbach am Schneeberg, Austria. and of Klais Orgelbau in Bonn, Germany.

To further extend their knowledge, they also participated in several workshops in organ building organized by the International Society of Organbuilders (ISO) and the European Center for Conservation, Restoration and Renovation (ECCRR) in Alden Biesen, Belgium. Training under the intense supervision of Europe’s pipe organ masters, founders Tagle and Montiano mastered every aspect of the unique craft of organ building, particularly in the areas of design, woodwork, pipe making, voicing, tuning and proper restoration, among others.

It is without doubt that the restoration of the Bamboo Organ (1973-75) generated a revival of interest in the pipe organs in the country. The yearly organized International Bamboo Organ Festival was an opportunity to establish contacts with organists and organizations who wanted to support the training of Filipino organists as well as organ builders in order to secure the future of the Bamboo Organ.

With the help of Dr. Johann Trummer, then head of the Institute for Church Music at the University of Graz (Austria), some young Filipino students from Las Piñas, mostly selected from among the members of the Las Piñas Boys Choir, were provided with a scholarship to take up a course in church music and organ building. It is not only Las Piñas but the entire country that is benefitting from this scholarship program.