A specialty food importer based in New England, founded by Jon Mikel Mendizabal to bring traditional Basque and Spanish conservas to the American market. The name references Donostia, the Basque name for San Sebastian. Sources pintxos-style tinned fish, including anchovies, bonito del norte, mussels, and cockles, from artisan producers in the Basque Country and Cantabria and distributes through specialty retailers across the United States.