Daniel Sommer Switzerland
- Open Circuit
- Open-Water-Nitrox Diver
- Advanced-Nitrox-Open-Water-Diver
- Nitrox-Diver
- Deco-Diver
- Extended Range-Diver
- Recreational Trimix-Diver
- Advanced Trimix-Diver
- Drysuit
- Full-Face-Mask
- DPV
- Gasblender
- Rebreather
- Hollis-Explorer-Level1
