This business, a member of the American Boat & Yacht Council, has several locations in southeastern New England. In addition to its store at the shipyards in Hingham, Eastern Yacht sells boats from Portsmouth, Rhode Island, Marblehead and Cataumet. Brands sold here include Mainship, Jefferson Yachts and Catalina. Eastern Yacht also provides full-service for its boats, including commissioning, options installation and warranty work.