RSSI is Eastern Long Island’s most convenient portable storage option! RSSI has been caring for our customers’ needs on the north and south fork since 1986. We provide a clean, well maintained storage container for a great monthly rate and a low delivery & pick up fee. Our central location in Riverhead provides our East-end customers with the lowest transportation charge of any portable storage vendor on Long Island. Whether you are remodeling your home in Southold, or storing your summer pool furniture in Southampton, we are here to help with our convenient and courteous service.