# Diver organisations

Diver organisations are membership based organisations where the membership is wholly, or at least in large part, underwater divers, and the organisation is intended to further a mutual interest related to underwater diving or the aquatic environment as it affects divers or diving activity. Some organisations have more than one focus of interest.

## Freediving

* AIDA International (AIDA) – Worldwide rule- and record-keeping body for competitive breath-hold events
* AIDA Hellas – National representative of AIDA International in Greece
* British Freediving Association (BFA) – British affiliate to AIDA International
* Confédération Mondiale des Activités Subaquatiques (CMAS) – International organisation for underwater activities

## Recreational and technical scuba

* British Sub-Aqua Club (BSAC) – Recreational diving club, training and certification agency based in the UK
* Cave Divers Association of Australia (CDAA) – Association to represent cave divers and administrate and support cave diving in Australia
* Cave Diving Group (CDG) – UK based cave diver training and certification agency
* Comhairle Fo-Thuinn (CFT) – Governing body for recreational diving and underwater hockey in Ireland
* Confédération Mondiale des Activités Subaquatiques (CMAS) – International organisation for underwater activities
* Federación Española de Actividades Subacuáticas (FEDAS) – Spanish national federation for underwater activities, affiliated to CMAS
* Fédération Française d'Études et de Sports Sous-Marins (FFESSM) – French diver training and certification agency
* International Association for Handicapped Divers (IAHD) – Non-profit organisation based in the Netherlands
* National Association for Cave Diving (NACD) – American non-profit organization for improving cave diving safety
* Woodville Karst Plain Project (WKPP) – Project and organization to map the underwater cave systems of the Woodville Karst Plain

## Scientific, archeological and historical

* Historical Diving Society
* Nautical Archaeology Society (NAS) – British organisation to further research in nautical archaeology for the public benefit
* Save Ontario Shipwrecks (SOS) – A provincial heritage NGO in Ontario, Canada
* Sea Research Society – American nonprofit for marine research

## Underwater sports

* Australian Underwater Federation (AUF) – Governing body for underwater sports in Australia
* British Octopush Association (BOA) – National body for underwater hockey in the United Kingdom
* British Underwater Sports Association (BUSA) – British affiliate to the world underwater federation sports committee.
* Federación Española de Actividades Subacuáticas (FEDAS) – Spanish national federation for underwater activities, affiliated to CMAS
* Fédération Française d'Études et de Sports Sous-Marins (FFESSM) – French diver training and certification agency
* South African Underwater Sports Federation (SAUSF) – Official World Underwater Federation representative body in the Republic of South Africa
* Türkiye Sualtı Sporları Federasyonu (TSSF) – Turkish national governing body for underwater sport and lifesaving
* Underwater Society of America (USOA) – American national representative organization for underwater sport.

## Other

* Artificial Reef Society of British Columbia (ARSBC) – Canadian non-profit to create artificial reefs for habitat enhancement and recreation
* Divers Alert Network (DAN) – International group of not-for-profit organizations for improving diving safety
* Green Fins – Organisation in South East Asia for preservation of coral reefs by improving diver behavior