Argentina
Asociacion de Padres de Niños con Histiocitosis de Argentina y Asociacion Argentina de Histiocitosis (A.A.H)

Belgium
Contact information for Langerhans Cel Histiocytose Belgium v.z.w.

Brazil
Contact information for Histiocytosis Association - Brazil

Canada
Website for the Histiocytosis Association of Canada

Deutschland
EHX e.V., berät und betreut erwachsene Betroffene
Jessica Loske Stiftung

France
Contact information for Association Histiocytose France and Groupe d'Etude des Histiocytoses

Greece
Nikolas Symposium, Information about the Nikolas Symposium in Athens
Artemis Society, Greek histiocytosis support group

Italy
Website for Associazione Italiana Ricerca Istiocitos (AIRI)

Japan
The Japanese Histiocytosis Web Site

Korea
Histiocztosis Association of Korea

Netherlands
Contact information for Stichting LCH

Portugal
Histiocytosis Association of Portugal

Spain
Histioycztosisi Association of Spain

Sweden
Histiocztosis Association of Sweden

Turkey
Sorry, but there´s no side available.

United Kingdom
Contact information for the UK Histiocytosis Family Support Association

United States of America
HISTIOCYTOSIS ASSOCIATION OF AMERICA, a non-profit organisation.
Histiocyte Society, an international organization of physicians, scientists, and researchers.