- Produces red, white, sparkling, and fortified wines. Includes product descriptions and directions to the winery. Additional information is available in Portuguese.
- Port wine producer located near Pinhão. Includes a history of this company which has been shipping port wine since the 18th century, and description of the vineyard and products.
- Founded more than 140 years ago, the House of Calem owns grape vineyards and ageing cellars, and produces a wide range of Ports for a number of markets.
- Produces a range of wines from organic grapes in the Douro region. Includes product information and a company overview. Also produces estate olive oils. [Flash required]
- Dão producer of reds and a white. Includes descriptions and pictures of the manor and its gardens. Also contains product information and a property history. [Flash required]
- Produces still, sparkling, and fortified wines from the major regions under several brand names. Includes a portfolio, a company profile, and news. [Flash required.]
- Founded in 1913, this producer specializes in old tawnies, also producing Douro table wines and brandy. Includes product descriptions, a company history, and vineyard information.
- Producer in the Dão region, whose first harvest was in 2000. Includes descriptions of grape varieties, a regional history, and a view of the vineyards. [Flash required]
- Douro based, renowned producer of vintage Port, particularly its Nacional. Site offers information on the vineyards, the winemaking technique and the wines.
- Produces table and fortified wines, under numerous brand names, including Mateus, Offley, and Sandeman. Includes a company profile, along with information about the vinyards and brands. [Flash required]