British Sub Aqua Club	Gas Blending Nitrox blending Trimix blending Advanced Nitrox Extended Range (ERD) Drager Rebreather Inspiration Rebreather Sport Trimix Advanced Trimix
Technical Divers International	Gas Blending Nitrox Advanced Nitrox Decompression Procedures Extended Range Open Circuit Trimix (Entry & Full) Drager Rebreather Inspiration Rebreather Extended Range
International Association of Technical Divers	Nitrox Advanced Nitrox Normoxic Trimix Gas Blending
Professional Association of Diving Instructors	Specialities Deep Diver Enriched Air Diver Wreck Diver Drager Dolphin Diver Diver Propulsion Vehicle (DPV)

(Instructor & Instructor Trainer)