Dunham-Bush is an industry leader in the manufacturing of heating, refrigeration and air conditioning equipment for commercial, industrial and institutional applications. For almost a century, Dunham-Bush Inc., has been providing innovative solutions for heating, air conditioning and refrigeration needs of its customers. D.B. International Sales & Services Inc. (DBI) is the Philippine's exclusive distributor of Dunham-Bush Airconditioning, Refrigeration, Ventilation Equipment and Ice Thermal Energy Storage System. DBI is involved in the sales, distribution, operation and maintenance services of all Dunham-Bush energy-efficient equipment and system.