The British Museum offers a free commemorative medal identification service.

The National Army Museum covers British military medals.

The Imperial War Museum’s collection includes medals relating to the First World War and subsequent conflicts.

The Orders and Medals Research Society has a particular focus on British and Commonwealth orders and decorations.

The British Art Medal Society issues contemporary art medals and publishes a journal covering commemorative medals from the Italian Renaissance to today.

The Medal Collectors of America generally focusses on North American medals.

The Token Corresponding Society covers a broad range of coin-like objects, which can include medals.

The Money and Medals Network is for curators and collectors and anyone interested in numismatics including medals. It publishes a regular e-newsletter.