British Thyroid Association - Professional clinical specialist doctors and scientists in the United Kingdom who manage patients and/or are researching thyroid diseases.
British Thyroid Foundation - A patient-led charitable organisation dedicated to helping those with thyroid disorders.
European Euthyroid Project - Aims to fully understand the metabolism and interconversion of iodothyronines during human development.
European Thyroid Association - Aims are to promote knowledge in the thyroid field (fundamental and clinical) and improve knowledge of the thyroid gland and its diseases. Find a notice board, events, and a newsletter.
Thyroid Australia - Provides personal support, counselling, information and training. Aims to raise awareness and interest in thyroid conditions.
Thyroid Federation International - This is a worldwide umbrella organization. Members include most thyroid support and education groups. For Thyroid Patients section lists symptoms of hyperthyroid and hypothyroid disorders.
Thyroid Foundation of Canada - Thyroid educational materials including online videos, public meetings, and articles. Version Francais available.