Peterson Pacific Corp. has been an Oregon Corporation since 1981. The company began as Wilbur Peterson & Sons, a heavy construction company. Peterson expanded into manufacturing to develop equipment to suit their land clearing and construction needs. A portable chain flail Delimber-Debarker was designed first, the Model DD 4800. The Model DDC 5000, a portable Delimber-Debarker-Chipper, was developed next followed by the development of other portable equipment for the paper pulp industry.