| Gigi Casati |
| Gigi Casati, www.prometeoricerche.eu |
| Espeleobuceoenburgos |
| Espeleobuceoenburgos |
| Hoelloch |
| Hoelloch |
| Farrworld |
| Farrworld |
| Swiss Cave Diving |
| Swiss Cave Diving |
| Technical Explorers |
| Technical Explorers TEVA Expedition Bikini-Atoll 2008 |
| Nederlandse onderwatersport Bond |
| www.nob-nl.nl www.onderwatersport.org |
| British Cave Diving Group |
| www.cavedivinggroup.org.uk |
| Mexico |
| www.cenotes.com |
| Plongee-souterraine |
| www.plongeesout.com |
| IANTD |
| www.iantdbenelux.com |
| Speleo Nederland |
| www.speleo.nl |
| www.duiken.ikwilhet.nu |
| www.duiken.ikwilhet.nu |