- aktiv im Tauchsport seit 1984
- Instructor seit 1990
- Barakuda Course Director
- Full Cave Diving Course Director
- BARAKUDA Instructor Trainer / CMAS TL ***
- Advanced Nitrox Instructor Trainer
- Gasblender Instructor Trainer
- Tech Fundamental Course Director
- Tech Advanced Course Director
- Trimix 60 / 100 Instructor Trainer
- Scooter Instructor Trainer
- eCCR MK VI Discovery Intr. Trainer
- SCR Rebreather Instructor Trainer
- AHA Instructor
- PADI Master / Staff Instructor
- EFR Instructor
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