HAI's members base is composed of individual and institutional members. This list only contains institutional ones.

Belgium
Projekt Farmaka

Cyprus
Arab Resource Collective

Finland
Physicians for Social Responsibility

France
La Revue Prescrire
Réseau Médicaments et Développement

Germany
BUKO Pharma-Kampagne
Verbraucherzentrale Bundesverband
DIFAM
Medico International

Greece
EKPIZO
KEPKA Consumers Protection Center

Hungary
CHAIN – Hungarian Federation of People with Chronic Health Conditions

Latvia
Club for the Protection of Consumer Interests

Moldova
DrugInfo

Poland
Polish Consumer Federation

Spain
Farmaceuticos Mundi

Sweden
KILEN Consumer Institute for Medicines and Health

Switzerland
SDIC/SMI Swiss Drug Information Centre
IBFAN-GIFA
Declaration de Berne
Medicus Mundi Switzerland

The Netherlands
WEMOS Foundation

United Kingdom
Baby Milk Action
Essential Drugs Project – U.K.
OXFAM G.B.