RB Heater Corporation, formerly known as RB Heater Products, started in 1985 as a sole propiertorship located in Caloocan, Philippines. The company began manufacturing custom-made electrical heaters for various industrial applications most especially in plastics and packaging.

The business diversified into assembling temperature sensors and retailing instrumentation devices for the food and beverage industry. Furthermore, the company added calibration and installation services to meet the specifications of the fishing and shipping sector.