| Amorim -- Information on this company's wine corks and cork production including factory processes, R&D and quality control. With news, publications and generic information about cork as a wine closure. |
| Amorim Group -- Manufacturer of cork bottle stoppers for the wine industry. Includes detailed product and technical information, and a description of the manufacturing process. |
| Anazé -- Portuguese cork stopper manufacturer. Company information and relevant information about wine bottling. |
| Bontap -- Spanish producers of cylindrical cork stoppers for wine. |
| Colombin GM & Figlio Spa -- Offers a variety of cork closures for wine and sparkling wine. |
| Edmundo Alves Ferreira -- Portuguese corkstopper manufacturer. |
| Fontes Pereira -- Produces corks made of natural material, namely 'specialities'. |
| Integra -- Wine closures including synthetic wine corks and stoppers. |
| Jelinek Cork Group -- Manufacturer and distributor of cork products including synthetic and natural corks for the wine industry. Product range with detailed descriptions. |
| Mureddu Sugheri -- Produces cork stoppers for still and sparkling wines made from natural cork as well as from composite materials. |
| Newpak USA -- Providing Nomacorc brand synthetic corks to the wine industry as an alternative bottle closure. |
| Sibel -- French manufacturer of composite corks for champagne and sparkling wines. |
| SupremeCorq -- Manufacturer of synthetic wine corks and bar top bottle closures. Site in English, French, German, Italian, and Spanish. |
