The Hellenic Foreign Trade Board (HEPO) is major sponsors and support the exhibition by inviting international buyers and journalists.

The National Interprofessional Organization of Vine & Wine of Greece (ΕDΟΑΟ) is the most significant umbrella organization of the Greek wine industry covering viticulture, wine-making and the wine trade. EDOAO supports Oenorama 2012, along with the two major growers’ associations, the Greek Wine Federation (SEO), a trade body whose members are privately owned wineries and the Central Union of Vine & Wine Cooperative Organizations of Greece (KEOSOE), the national federation of wine-making cooperatives. Another professional organization that supports Oenorama is the Greek Distillates and Spirits Association (SEAOP). 

Oenorama 2012 also enjoys the support of numerous other professional organizations from the Greek wine industry, such as the  Wine Producers of the Vineyards of Northern Greece Union (ENOAVE), the Peloponnese Vineyard Wine Producers Union (ENOAP), the Wine Producers of the Vineyard of Central Greece Union (ENOAKE), the Attica Vineyard Wine Producers Union (ENOAA), the Wines of Crete and the Wine Producers of the Vinegrowing Aegean Islands (ENOANA).

Many trade associations are also active participants, such as: the Panhellenic Union of Greek Sommeliers (PENO), the Greek Union of Oenologists (EEO), the Panhellenic Union of Degree-Holding Oenologists  (PANEPO), the Greek Women of Wine, the Circle of Greek Wine Writers  (ELDOIN), the Bartenders Union of Greece, the Panhellenic Federation of Restaurant and Related Professions (POESE), and the Nifalioi (Sober, Citizens’ Movement for the Alcoholic and his Environment). 

All of the above organizations and unions attend the fair along with several publications: Oenochoos, Gastronomos, Wine Plus, %Voldrinks, Olive, Oenologia, Oenos o Agapitos, International Herald Tribune-Kathimerini English Edition, All Pack Hellas, To Ampelotopi, Agrotika Themata, Agroschannel.com, Avlaea of Thessaloniki, TrikalaNews.gr,Bioport, Georgia & Anaptyxi, Food & Wine-Coffee & Spirits, Market Leader, Import and Sorbet Magazine, Beverage Manager Net, Wein-Plus.eu