
The GUS is a member of the DVT (Deutschen Verband technisch-wissenschaftlicher Vereine). Together with the VDI (Verein Deutscher Ingenieure), GUS has reached an agreement concerning double membership.
The GUS is a founding member of the Confederation of European Environmental Engineering Societies CEEES, which is the European umbrella organisation for environmental engineering and testing.
The GUS is a society member of the European Federation of Clean Air and Environmental Protection Associations (EFCA) and the Studiengesellschaft für den kombinierten Verkehr e.V. (SGKV).
The GUS is a partner and participant in the European EUREKA Project BESTPRODUCT TENEEST E!3517 and actively supports the networking of European experts in environmental engineering.
GUS has contact with the Institute of Environmental Science and Testing (IEST) in the USA, and also with other technical societies in Europe.
Members of the GUS give lectures and courses and participate in standardisation and guideline working groups.