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2018 Market Share of Scuba Certification Agencies (PADI, SSI, NAUI)
Greg - 12/22/2018 10:44 AM
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Category: Educational
Comments: 8
2018 Market Share of Scuba Certification Agencies (PADI, SSI, NAUI)According to the certifications added by scuba divers on, the following list indicates the percentage market share by each certification agency. Only the unique certification agencies were counted for each diver. For example, if a diver listed 3 different certifications with PADI and 1 for DAN, the list below includes 1 for PADI and 1 for DAN. All types of certifications were included (entry, advanced, tech, recreational).

Link to larger graph

Sample size: 3747 unique scuba divers that listed their certifications

PADI: 55.60%
SSI: 10.53%
NAUI: 10.14%
SDI: 4.96%
TDI: 3.13%
DAN: 2.05%
IANTD: 1.63%
Red Cross: 1.16%
NASE: 0.89%
CMAS/WUF: 0.87%
YMCA: 0.81%
NASDS: 0.57%
NSS/CDS: 0.53%
PDIC: 0.51%
IDEA: 0.47%
Other: 6.16%


awetmedic - 10/24/2020 10:18 AM
Very small sampling of the hundreds probably thousands of scuba agencies all around the world.
TimunaSea - 2/12/2019 8:41 AM
Nice graph. Can you display by Diver grade instead of Organisation?
derrickpicha - 1/18/2019 5:18 AM
Always intersting with stats. Thanks for sharing. :-)
DiveCalifornia - 1/07/2019 4:49 PM
Very interesting - thanks for posting!
BillParker - 12/27/2018 5:57 PM
I think it’s funny that despite all the talk GUE doesn’t even show up on this list.
DiveCalifornia - 1/07/2019 4:29 PM
I’m not sure if this is how you meant it, but your comment hints contempt. Regardless, there are perfectly good reasons for GUE’s absence in this data. The primary reason is that the sample group is restricted to participants. Why would that matter? Because GUE divers don’t find their buddies in places like this - so most wouldn’t list themselves here. They have their own network of resources they find their buddies through.
Eric_R - 12/22/2018 12:47 PM
Could other be I don’t know? Very cool to see data.
Greg - 12/22/2018 6:41 PM
Yes, Other includes when a diver choose “Other” when they added their certification. But it also includes several different certification agencies that didn’t have a high enough percentage to be listed.