Companies of Union Group JSCo are members of the following international, regional and national organizations:


Bulgarian Chamber of Commerce

Bulgarian Chamber of Shipping of which
Capt. Stoyan Shtarbakov is founder and honour chairman
Bulgarian–Russian Chamber of Commerce and Industry represented by Capt. Stoyan Shtarbakov for Varna region
Bulgarian Association of Ship Brokers and Agents (BASBA), member of FONASBA
Bulgarian Association for Freight Forwarding, Transport and Logistics (NSBS), member of FIATA