Allan Kardec's (Hypolite Léon Denizard Rivail) spiritism (Kardecist Spiritism) is practiced in many countries of the world. However, it is rare to find an institute or school of spiritism under this name, many can be found under the name Society for Psychical Research or Psychical Research Association.
Lilydale, NY. The world's largest gated community of Spiritulists. Lovely place should you decide to visit.