- Associazione Italiana Amatori delle piante Succulente
 - Devoted to cacti and succulent plants.  British Cactus and Succulent Society
- Dedicated to promoting the study, conservation, propagation, and cultivation of cacti and other succulent plants.- Chinle Cactus and Succulent Club, The
- Located in western Colorado, the club is devoted to fostering understanding and appreciation of all kinds of succulent plants.
- Desert Plant Society of Vancouver
- Information on monthly meetings, and show and sale. Complete seedlist available online including ordering information.
- Henry Shaw Cactus Society
- Devoted to the study and enjoyment of cacti and succulents.
- International Euphorbia Society (IES)
- Dedicated to furthering the knowledge of Euphorbiaceae plants their cultivation.
- San Diego Epiphyllum Society
- All about these hybrids of epiphytic cacti species, sometimes referred to as cactus orchids or epiphytic cactus.
- Succulent Society of South Africa, The
- Works to promote knowledge, cultivation, and conservation of succulents.
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