Andresen - http://www.jhandresen.com/

Barros - http://www.porto-barros.pt/

Borges Wines - http://www.borgeswines.com/

Broadbent - http://www.broadbent-wines.com/index.cfm?fuseaction=category_detail&category_id_int=12011

Burmester - http://www.burmesterporto.com/

Calem - http://www.calem.pt/

Casal dos JordÕes - http://www.winedouro.com/

C. da Silva - http://www.cdasilva.pt/indexuk.html

Champalimaud - http://www.quinta-do-cotto.pt/uk/historia_tradicao_01uk.asp

Churchill - http://www.churchills-port.com/

Cockburn - http://www.cockburns-usa.com/

Croft - http://www.croftport.com/

Delaforce - http://www.delaforce.com/

Dow - http://www.dows-port.com/

Ferreira - http://eng.sogrape.pt/marcas/8/historia

Fonseca - http://www.fonsecaport.com/

Gilbert - http://www.gporto.com/g_en.htm

Gould Campbell - http://www.smithwoodhouse.com/gcindex.htm

Graham - www.grahams-port.com 

Kopke - http://www.kopkeports.com/index.htm

Krohn - http://www.krohn.pt/main.php?id=4

Martinez - http://www.martinez.pt/

Messias - http://www.cavesmessias.pt/

Niepoort - http://www.niepoort-vinhos.com/

Offley - http://www.sogrape.pt/marcas/9/historia

Osborne - http://www.osborne.es/

Porto Cruz - http://www.portocruz.net/home.html

Porto Poças - http://www.pocas.pt/home_i.htm

Porto Solene - http://www.portosolene.com/english.htm

Porto Souza - http://www.europawines.com/wine_a.html

Quinta Nova de Nossa Senhora do Carmo - http://www.quintanova.com/index.htm

Quinta da Pacheca - http://www.quintadapacheca.com

Quinta das Heredias - http://www.portoheredias.com/

Quinta de la Rosa - http://www.quintadelarosa.com/indexe.htm

Quinta de Roriz - http://www.quintaderoriz.com/index-en.htm

Quinta de Santa Eufemia - http://www.casasantaeufemia.com/

Quinta de Ventozelo - http://www.quintadeventozelo.com/engl/contido/index.html

Quinta do Crasto - http://www.broadbent-wines.com/index.cfm?fuseaction=category_detail&category_id_int=12020

Quinta do Infantado - http://www.quintadoinfantado.pt/

Quinta do Javali - www.quintadojavali.com/

 Quinta do Noval - http://www.quintadonoval.com/

Quinta do Portal - http://www.quintadoportal.com/main.php

Quinta do Silval - http:www.quintadosilval.com

Quinta do Tedo - http://www.quintadotedo.com/

Quinta do Vale da Mina - http://www.seacove.com/ptdamina.html

Quinta do Vale Dona Maria - http://www.valedonamaria.com/pag13_1.asp

Quinta do Vale Meão - http://www.quintadovalemeao.com/ - currently under construction

Quinta do Vallado - http://www.wonderfulland.com/vallado/bd_index_uk.htm

Quinta do Vesuvio - http://www.quintadovesuvio.com/

Ramos-Pinto - http://www.ramospinto.pt/home_ing.htm

Robertson's (Rebello Valente) - http://www.sogrape.pt/marcas/10/gama

Royal Oporto - http://www.realcompanhiavelha.pt/i_index.cfm

Rozes - http://www.rozes.pt/

Sandeman - http://www.sandeman.com/ing/index1.html

Smith Woodhouse - http://www.smithwoodhouse.com/

Taylor - http://www.taylor.pt/

Vallegre - http://www.vallegre.pt/

Warre - http://www.warre.com/