Region: DouroDouro has always been known for the production of Ports. In the past, little dry table wines was produced, unimportant in terms of quality and quantity. Barca Velha was the only exception: a famous dry table wine from the Douro.
The change began after Portugal became member of the European Union. Under E.U. legislation, ports could not only be produced by port shippers in Oporto: Production companies (Quinta's) could make port wines and export them themselves. Also, the area became open to new companies. Dry red wines gained in quality considerably during the 90's. Currently, some Quinta's are even more famous for their dry table wines than for their ports, which they often still produce: for instance Quinta do Crasto and Quinta do Vale Meão.
Douro wines tend to be concentrated and fruity and often surprisingly complex. Vary little white wines are produced in Douro due to the hot climate; Niepoort probably being the exception with white wines grown at an altitude higher than 400 m.
| Niepoort | 45 wines out of 47 are from Douro |
| Taylor (Fladgate) | 31 wines out of 31 are from Douro |
| Fonseca | 26 wines out of 26 are from Douro |
| Graham | 30 wines out of 30 are from Douro |
| Quinta do Noval | 33 wines out of 33 are from Douro |
| Quinta de Porto | 1 wine out of 1 are from Douro |
| Dow | 37 wines out of 37 are from Douro |
| Ramos Pinto | 32 wines out of 33 are from Douro |
| Kopke | 23 wines out of 24 are from Douro |
| Warre | 29 wines out of 29 are from Douro |
| Sandeman | 16 wines out of 39 are from Douro |
| Croft | 15 wines out of 18 are from Douro |
| Churchill | 20 wines out of 20 are from Douro |
| Quinta de la Rosa | 23 wines out of 23 are from Douro |
| Cockburn | 14 wines out of 14 are from Douro |
| Krohn | 11 wines out of 14 are from Douro |
| Quinta do Portal | 27 wines out of 28 are from Douro |
| Barros | 15 wines out of 15 are from Douro |
| Ferreira | 24 wines out of 27 are from Douro |
| Quinta do Crasto | 17 wines out of 17 are from Douro |
| Smith Woodhouse | 12 wines out of 12 are from Douro |
| Cruz | 1 wine out of 1 are from Douro |
| Delaforce | 11 wines out of 11 are from Douro |
| Presidential | 11 wines out of 11 are from Douro |
| Quinta do Vesuvio | 2 wines out of 2 are from Douro |
| Poças | 25 wines out of 27 are from Douro |
| Quinta da Romaneira | 10 wines out of 10 are from Douro |
| J.W. Burmester | 27 wines out of 27 are from Douro |
| Dalva | 14 wines out of 14 are from Douro |
| Real Companhia Velha | 17 wines out of 17 are from Douro |
| Quinta Do Infantado | 16 wines out of 16 are from Douro |
| CARM (Casa Agrícola Roboredo Madeira) | 17 wines out of 17 are from Douro |
| Cálem | 20 wines out of 20 are from Douro |
| Messias | 2 wines out of 2 are from Douro |
| Quinta do Vallado | 13 wines out of 13 are from Douro |
| Quinta do Vale Meão | 4 wines out of 4 are from Douro |
| Rozès | 16 wines out of 16 are from Douro |
| Quinta do Passadouro (Niepoort) | 6 wines out of 6 are from Douro |
| Casa Ferreirinha | 15 wines out of 15 are from Douro |
| Quinta de Ventozelo | 18 wines out of 19 are from Douro |
| Gould Campbell | 3 wines out of 3 are from Douro |
| Borges | 15 wines out of 30 are from Douro |
| Quinta do Vale Dona Maria | 8 wines out of 8 are from Douro |
| Quinta de Roriz | 6 wines out of 7 are from Douro |
| Prats and Symington | 2 wines out of 2 are from Douro |
| Terras | 1 wine out of 1 are from Douro |
| Offley | 6 wines out of 6 are from Douro |
| J.H. Andresen | 10 wines out of 10 are from Douro |
| Tuke Holdsworth | 4 wines out of 4 are from Douro |
| Osborne | 8 wines out of 49 are from Douro |
| Lavradores de Feitoria | 11 wines out of 12 are from Douro |
| Pintas | 1 wine out of 1 are from Douro |
| Romariz | 9 wines out of 9 are from Douro |
| Quinta do Castelinho | 12 wines out of 12 are from Douro |
| Poeira | 2 wines out of 2 are from Douro |
| Symington | 10 wines out of 10 are from Douro |
| Quinta Santa Eufêmia | 4 wines out of 4 are from Douro |
| Barão de Vilar | 6 wines out of 6 are from Douro |
| Martinez | 11 wines out of 13 are from Douro |
| Caves Messias | 22 wines out of 27 are from Douro |
| Quinta do Estanho | 9 wines out of 9 are from Douro |
| Royal Oporto (Real Companhia Velha) | 19 wines out of 20 are from Douro |
| Primavera Douro | 1 wine out of 1 are from Douro |
| Vallegre | 14 wines out of 14 are from Douro |
| Wine & Soul | 5 wines out of 5 are from Douro |
| Alves de Sousa | 7 wines out of 7 are from Douro |
| Quinta da Aveleda | 1 wine out of 19 are from Douro |
| Quinta do Vale | 1 wine out of 2 are from Douro |
| Caves Transmontanas | 6 wines out of 6 are from Douro |
| Domingos Alves de Sousa | 11 wines out of 11 are from Douro |
| José Maria da Fonseca & Van Zeller | 5 wines out of 5 are from Douro |
| SÓ | 1 wine out of 1 are from Douro |
| Offley Boa Vista | 4 wines out of 4 are from Douro |
| Quinta do Tedo | 10 wines out of 10 are from Douro |
| Quinta Seara D'Ordens | 12 wines out of 12 are from Douro |
| Broadbent | 4 wines out of 20 are from Douro |
| Quinta Vale D. Maria | 1 wine out of 1 are from Douro |
| Kolheita de Ideas | 6 wines out of 6 are from Douro |
| Quinta da Portela | 1 wine out of 1 are from Douro |
| Churchill/Graham | 9 wines out of 9 are from Douro |
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