Bacalhoa
- http://www.bacalhoa.com/
- Produces red, white, sparkling, and fortified wines. Includes product descriptions and directions to the winery. Additional information is available in Portuguese.
Burmester
- http://www.burmesterporto.com/
- 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.
Calem
- http://www.calem.pt/
- 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.
Casa da Ínsua
- http://www.casadainsua.pt/
- 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]
Cavipor
- http://www.cavipor.pt/
- Produces still, sparkling, and fortified wines from the major regions under several brand names. Includes a portfolio, a company profile, and news. [Flash required.]
Croft Port
- http://www.croftport.com/
- Port house founded in 1678. Presents its history, products, vineyards, how port is made, the types of port, and a glossary. [Flash required]
Delaforce
- http://www.delaforce.com/
- Information about the Delaforces, an old family of Huguenot origin, their company and their ports.
G Porto
- http://www.gporto.com/
- Gilbert's line aimed at young adults. Includes product descriptions, cocktail recipes, and an award list. [Flash Required]
José Maria da Fonseca
- http://www.jmf.pt/
- One of the oldest producers of Portuguese table wines and Setubal dessert wines. Markets under several other brand names, including Lancer's.
Porto Barros
- http://www.porto-barros.pt/
- 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.
Quinta de Lemos
- http://www.quintadelemos.com/
- 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]
Quinta do Noval
- http://www.quintadonoval.com/
- Douro based, renowned producer of vintage Port, particularly its Nacional. Site offers information on the vineyards, the winemaking technique and the wines.
Quinta do Portal
- http://www.quintadoportal.com/
- A family-run winemaking company based in the Douro Valley in northern Portugal. Information on its white and red wines as well as a range of Ports.
Rozès Porto
- http://www.rozes.pt/
- Includes a profile of this Port producer, along with descriptions of wines, a list of distributors, and a few recipes.
Sogrape
- http://www.sogrape.pt/
- 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]