The Titanic International Society is a non-profit historical organization
founded in 1989 to preserve and perpetuate the memory and history of the Royal Mail Ship Titanic, and those who sailed aboard her maiden and last voyage.
British Titanic Society is based
in the United Kingdom with approximately 2,700 members. The organization
publishes the quarterly Atlantic Daily Bulletin and periodically hosts
conventions.
Titanic Historical Society was established in 1963, making it the original, and oldest
Titanic society. Based in the United States, it publishes
the excellent quarterly The Titanic Commutator and hosts periodic
conventions.