Royal Sovereign International, Inc. is an international manufacturer and distributor of office products, home appliances, and ... graphics equipment. Founded in 1986, RSI has grown into an international leader in the consumer and commercial goods industry. Royal Sovereign is headquartered in Rockleigh, NJ, and has multiple international sales offices, distribution centers, manufacturing plants, and customers in 100+ countries. Our Product line includes portable air conditioners, dehumidifiers, laminators, shredders, cash management systems, and wide format graphic lamination systems. read more