The Portuguese Cork Association (APCOR)  –is a rich resource for information on cork and sustainability.  It was created to represent and promote the Portuguese Cork Industry. It is an employers’ association, of national scope, founded in 1956 and based in the north of Portugal, in Santa Maria de Lamas, a town just over half an hour from Oporto, the second largest city in the country. All the companies that operate in the fields of production, marketing or export of cork products can join the association.

Cork Quality Council —Their website www.corkqc.com has the latest in wine corks, including new developments, statistics and improvements in cork quality.

World Wildlife Cork Quality Council –- Foundation: recommends Cork production is a sustainable forestry practice.

Cork Technology Centre (CTCOR) – -(site language is Portuguese) The CTCOR is a non-profit research laboratory that plays an important role in the definition of standards for the Portuguese Cork Industry. The CTCOR is recognized by the Portuguese Government as a center of expertise and it has around 200 members. The CTCOR has 70 per cent private funding, the Government funding the remainder through various different bodies. The CTCOR conducts research in the following areas: environmental quality, energy, technical and technological innovation, strategy, occupational safety and health.