Founded in 1969 and based in Bonaparte, Iowa, Riverside Plastics Inc. is a family-owned and operated company. The company operates as a custom injection molder of thermoplastic resins. It has a 70,000 square foot facility that houses two molding rooms with presses ranging from 30 tons to 730 tons. Riverside Plastics Inc. processes many resins, including polyamide, acrylic, polypropylene, polystyrene, thermoplastic elastomer, acetal among others. The company has a toolroom along with its molding operations for more than 40 years. Riverside Plastics Inc. serves industries including building, construction, office furniture, appliance, electronics, agriculture, food processing, defense and packaging among others.