Within the Public Interest Group representatives of National Governments of the Wadden Sea Countries are organised:

Netherlands
Ministry of Transport, Public Works and Water management, Rijkswaterstaat Directorate North-Netherlands, and Netherlands Institute for Applied Geosciences NITG

Denmark
Ministry of the Environment and Energy, The National Forest and Nature Agency, to be represented by the Common Wadden Sea Secretariat; within this network the following DK Public Organisations:

• Danish Nature Protection Agency
• Danish Environmental Protection Agency
• Danish Environment Research Institute
• County Council of Southern Jutland.

Germany
Landesamt für den Nationalpark Schleswig-Holsteinisches Wattenmeer
Bezirksregierung Weser-Ems, Nationalparkverwaltung Niedersächsisches Wattenmeer