IANTD (International Association of Nitrox and Technical Divers)
IANTD is the world's largest scuba diving training organization of open water, nitrox, enriched air, overhead environment, cave, wreck, rebreather, trimix, gas blenders, technical scuba divers, instructors and instructor trainers and free diving.
PADI (Professional Association of Diving Professionals)
PADI Divers carry the most respected and sought after scuba credentials in the world. No matter where you choose to dive, your PADI certification card will be recognized and accepted. In fact, on most dive adventures youâ€™ll be surrounded by other PADI Divers who made the same certification choice you did â€“ to train with the worldâ€™s largest and most respected diver training organization.
PSAI (Professional Scuba Association International)
The Professional Scuba Association International is one of the oldest technical scuba training agencies in the world. For many years it was a small, specialized organization that was predominantly involved with dive training associated with extended range deep air diving. Virtually all of the early history centers on the founder, Hal Watts.
DAN (Divers Alert Network)
DAN is a not-for-profit 501(C)(3) organization that provides emergency medical advice and assistance for underwater diving injuries, and underwrites a wide range of research, education and training programs that promote safe diving. DAN is supported by more than 200,000 fellow divers with a further 60,000 international divers supporting DAN Europe, DAN Japan, DAN Southeast Asia Pacific and DAN Southern Africa.
The European department of IDAN (International Divers Alert Network), a non-profit organisation concerned with research into the medical aspects of diving. You can become a member of DAN, which allows you to use their international network of alarm centres, which can give advice by phone and refer to local dive physicians. They also issue a magazine, Alert Diver, which contains interesting articles on the medical aspects of diving.
HSA - Handicapped Scuba Association
Founded in 1981, the Handicapped Scuba Association, a non-profit organization, has dedicated itself to improving the physical and social well-being of people with disabilities through the exhilarating sport of scuba diving and in doing so has become a worldwide authority in the field.
IAHD - International Association for Handicapped Divers
The International Association for Handicapped Divers provides dive training for physically handicapped people. They also provide specialised training for dive instructors who want to teach people with physical handicaps.
Wevos Wet Wheels
Website of Wevos Wet Wheels, a Belgian organisation for diving for the disabled.