Training and skills

Commercial
certification authorities

Commercial
diving schools

Divers Academy International

Free-diving
certification agencies

AIDA International (AIDA)
Confédération Mondiale des Activités Subaquatiques (CMAS)
Performance Freediving International (PI)
Scuba Schools International (SSI)

Recreational
certification agencies

American Canadian Underwater Certifications (ACUC)
American Nitrox Divers International (ANDI)
Association nationale des moniteurs de plongée (ANMP)
British Sub-Aqua Club (BSAC)
Comhairle Fo-Thuinn (CFT)
Confédération Mondiale des Activités Subaquatiques (CMAS)
Federación Española de Actividades Subacuáticas (FEDAS)
Fédération Française d'Études et de Sports Sous-Marins (FFESSM)
Federazione Italiana Attività Subacquee (FIAS)
Global Underwater Explorers (GUE)
International Association for Handicapped Divers (IAHD)
International Association of Nitrox and Technical Divers (IANTD)
International Diving Educators Association (IDEA)
Israeli Diving Federation (TIDF)
National Academy of Scuba Educators (NASE)
National Association of Underwater Instructors (NAUI)
Nederlandse Onderwatersport Bond (NOB)
Professional Association of Diving Instructors (PADI)
Professional Diving Instructors Corporation International (PDIC)
The Sub-Aqua Association (SAA)
Scuba Diving International (SDI)
Scuba Educators International (SEI)
Scottish Sub Aqua Club (ScotSAC)
Scuba Schools International (SSI)
Türkiye Sualtı Sporları Federasyonu (TSSF)
United Diving Instructors (UDI)
YMCA SCUBA Program

Recreational
certification levels

Scientific diver
certification authorities

Technical
certification agencies

Cave diving	Cave Divers Association of Australia (CDAA) Cave Diving Group (CDG) Global Underwater Explorers (GUE) National Association of Underwater Instructors (NAUI) Technical Diving International (TDI)

American Nitrox Divers International (ANDI)
British Sub-Aqua Club (BSAC)
Confédération Mondiale des Activités Subaquatiques (CMAS)
Diving Science and Technology (DSAT)
Federazione Italiana Attività Subacquee (FIAS)
Global Underwater Explorers (GUE)
International Association of Nitrox and Technical Divers (IANTD)
National Association of Underwater Instructors (NAUI)
Professional Association of Diving Instructors (PADI)
Professional Diving Instructors Corporation (PDIC)
Technical Diving International (TDI)
Trimix Scuba Association (TSA)
Technical Extended Range (TXR)

Related

Divers Alert Network

Diver certification

European Underwater Federation (EUF)

International Diving Regulators and Certifiers Forum (IDRCF)

International Diving Schools Association (IDSA)

International Marine Contractors Association (IMCA)

List of diver certification organizations

National Oceanic and Atmospheric Administration (NOAA)

Nautical Archaeology Society

Recreational diver training

Universal Referral Program

World Recreational Scuba Training Council (WRSTC)

Category: Underwater diving training organizations

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