After the Waterhouse company, the pier housed a succession of firms: the Hayden Dock Company, Shepard Line Intercoastal Service, and the Northland Transportation Company, as well as the Arlington Dock Company. During the 1962 Century 21 Exposition, the World's Fair at what afterwards became Seattle Center, the pier added curio shops, restaurants, fish houses, etc., and ceased to be a transportation hub. Trident Imports, opened on the pier around that time, had a decades-long run of importing everything from rattan furniture from Southeast Asia to chocolate from Belgium. Ted Griffin's Seattle Marine Aquarium was located at the west end of the pier. Its star attraction, Namu the killer whale, died in 1966. The architecture, landscape and urban design firm Mithun completed a renovation of the pier in 2000 and is now housed in the second floor of the pier shed.