Cooperative association of the fair companies of the Middle, Southern and Eastern Europe  CEFA is an association of 22 exhibition grounds from Central and South-Eastern Europe, whose intention is to strengthen international importance of fairs in this region. GR – Ljubljana Exhibition and Convention Centre has become member of CEFA in 2011.

UFI is an association of leading fair organizers and fairground owners around the world. It also connects all major national and international associations in the exhibition industry and their partners. GR – Ljubljana Exhibition and Convention Centre has been a member of this association since October 2011.

The Slovenian Convention Bureau acts as a professional intermediary between meeting planners and suppliers, assisting organisers to select the most appropriate solution for their event. Ljubljana Convention and Exhibition Centre (GR) is a member of the Slovenian Convention Bureau since 2007. 
In March 2008 the Slovenian Convention Bureau awarded the Ljubljana Exhibition and Convention Centre two certificates in the E-convention capabilities and H-other offer categories. Last year the Centre also became a member of the most influential international organization in the field of congress tourism, ICCA.

The Chamber of Commerce and Industry of Slovenia (CCIS) provides essential services for enterprises operating in Slovenia.

The Chamber of Craft and Small Business of Slovenia is an umbrella organisation comprising the craft and small business chamber system jointly with 62 regional chambers of craft and small business. The Chamber of Craft and Small Business of Slovenia and the regional chambers of craft and small business are independent legal entities managed by craftsmen – officials (functionaries) – on a voluntary basis.

American Chamber of Commerce in Slovenia – AmCham Slovenia is a voluntary nonprofit organization. It was founded in 1999 on the initiative of the following companies: Microsoft d.o.o., Src informatika d.o.o., Sava Tires d.o.o., Merck Sharp & Dohme Idea Incorporation, Partnair Aviation Services, RFR - Ernst & Young Revisional Company d.o.o., McDonald's Slovenija d.o.o., Eurest d.o.o., Hermes Softlab d.d. and Schering Plough Central East AG. AmCham Slovenia has its headquarters in Ljubljana, on Dunajska 156 Street, however it takes an active part throughout the entire region of the Republic of Slovenia. Momentarily there are 230 corporative members. Its whole activity is financed from the membership fee and sponsorship resources.