BULECOPACK AD, city of Sofia – a PWRO (Packaging Waste Recovery Organization), a major business partner in a number of projects;

Ecocollect AD, city of Sofia – a PWRO (Packaging Waste Recovery Organization), a major business partner in a number of projects relating to collection, pretreatment, and recycling of nylon and plastic;

Ecopack Bulgaria AD, city of Sofia – a PWRO (Packaging Waste Recovery Organization) a major business partner in a number of projects;

Duropack Trakia Papir S.a., city of Pazardzhik – a plant for the processing of paper and cardboard waste;

„Knauf Bulgaria” Ltd. – Bulgaria

„ЗХ Белово” АД – Bulgaria

„Sanitex Paper Products” Ltd. – Bulgaria

Modern Karton Sanayi Ve Ticaret A.S. – Turkey

„Дружба Стъкларски Заводи” АД – Bulgaria

Стъкларски Завод „Рубин” – Плевен – Bulgaria

„Coca Cola Hellenic Bottling Company Bulgaria“ AG, Sofia – Hauptlieferant von recyclebaren Abfällen aus Glas und Glasverpackungen;

BILLA Bulgaria EOOD, city of Sofia – major supplier of recyclable paper, cardboard, and polymer waste;