Symington Family Estates is a leading quality Port producer with brands such as Graham’s, Cockburn’s, Dow’s and Warre’s, as well as being the leading vineyard owner in the Douro Valley with 1 002 hectares (2 476 acres) of vines at 27 quintas (vineyards). The company also produces Douro DOC wines, such as Altano and Quinta do Vesuvio. In partnership with Bruno Prats, they also produce the Prats and Symington range of wines, Prazo do Roriz, Post Scriptum and Chryseia.