Zoneworks is a sister company of Frommelt Products Corporation (part of the Rite-Hite family of companies). Since 1951, Frommelt has earned a reputation as a leader in environmental control products for the loading dock. Through its history of designing dock seals, shelters and other dock products, Frommelt has also developed expertise in modular freezer walls and sliding curtains used for environmental separation purposes in facility interiors.
All Zoneworks products are designed and manufactured at the company's facility in Dubuque, Iowa, with business operations located at Rite-Hite's corporate headquarters in Milwaukee, WI.