| BSAC |
British Sub Aqua Club |
http://www.bsac.com |
| CMAS |
Confédération Mondiale des Activités Subaquatiques |
http://www.cmas.org |
| IAC |
International Aquanautic Club |
https://www.diveiac.com/en/ |
| IAHD |
International Association of Handicapped Divers, Holland |
http://www.iahd.org |
| IANTD |
International Association of Nitrox and Technical Divers, Inc. |
http://www.iantd.com |
| ISC |
ISC International Scuba Certification |
https://www.diveisc.com/ |
| ISDA |
International Scuba Diving Academy, Italy |
http://www.isdaitalia.it |
| NADD |
NADD Global Diving Agency |
http://www.naddeurope.com |
| NASDS |
National Association for Scuba Diving Schools |
https://www.nasds.com/en/tauchen-bielefeld-english/ |
| NDL |
National Dive League |
http://www.ndl-global.com |
| PADI |
Professional Association of Diving Instructors |
http://www.padi.com |
| PSS |
Professional Scuba Schools |
http://www.pssworldwide.org |
| RAID |
Rebreather Association of International Divers
|
https://www.diveraid.com/ |
| SDI |
Scuba Diving International |
https://www.tdisdi.com |
| SNSI |
Scuba Nitrox Safety International, Italy |
http://www.snsi.it |
| SSI |
Scuba Schools International (Worldwide) |
http://www.divessi.com |
| SSI XR |
SSI Technical Extended Range |
http://www.diveSSI.com |
| TDI |
Technical Diving International |
http://www.tdisdi.com |
| WOSD |
World Organisation of Scuba Diving |
http://www.wosd.com/ |