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Born in London in 1964. Dave is a Geologist by education. He learned to dive whilst living and working out of Hong Kong, and turned professional, as a Divemaster in 1991 and then a PADI Instructor in 1992.

When IANTD came to the Philippines in '95 he was among the first group of Instructors certified, and currently holds the ratings of Trimix Instructor, Draeger Rebreather Instructor and Normoxic Trimix Instructor Trainer, and covers Gas Blending programs for Nitrox and Trimix through both IANTD and  DSAT. He has logged over 6,800 dives in the last thirteen years, and trained more than 1000 divers at all levels.

Around the time Tech Asia formed in 2000, Dave developed a strong interest in overhead environment diving, and has since been lucky enough to set up and run trips to many of the Philippines historic wreck sites, and to gain experience with expedition level international travel, such as organizing early helium based diving on Truk Lagoons’ Japanese Fleet ( www.deepweek.com ), and WWII wrecks far off the Borneo coast.

Another Brit, Another Brit, originally from Brighton, Sam began diving at Asia Divers in 1994. He was at that time living in Sydney and owned a very successful Stone Masonry and Restoration business, which he ultimately sold and moved to full time diving as a career. Sam is an IANTD Instructor Trainer to the levels of full Trimix and Technical Wreck, and also teaches DPV, Gas Blending, Rebreather, and all of the PADI/DSAT levels to Tec Trimix. Sam's instructional and supervisory skill, patience, and attention to individuals divers particular needs and abilities have made him a tremendously popular and highly respected member of the Tech Asia team, and in the field of Asian technical diving generally. Sam also involves himself actively in dive travel, having put together excursions all over the Philippines, and from Micronesia, South China Sea and to the Burma Banks.

Also from the UK, Portsmouth being home, Andy came to the Philippines after a long stint in Saudi as an RAF aircraft engineer. In the Middle East he was heavily involved with BSAC, and in the Philippines became a partner in Asia Divers in the late eighties. Although a BSAC Advanced Instructor, PADI Master Instructor and also being involved in that first IANTD Crossover, Andy is now less often found in the water. Gas Blending programs, Compressor Workshops, and specialized Equipment Seminars however remain his forte, and his technical expertise is drawn upon by all other dive centers in the area.

Josh comes from the busy streets of New York City where he started diving in 1999. In December 2005 he decided to leave the computer security consulting business for a little more adventure in South East Asia. He turned professional with Asia Divers when he arrived, and began technical diving to keep his diving moving forwards not long after. Josh is currently a Trimix Diver and IANTD Advanced Nitrox/Advanced Recreational Instructor. His other hobbies include music, traveling, biking, tae-kwon do, and anything with a little bit of adventure involved. He has also been diving in Florida, San Diego, British Virgin Islands, New York City, Truk Lagoon, and everywhere he gets the chance to during is travels around South East Asia.

From Germany, Ralph began his diving 1988 in Belize. Four years later he moved to the Philippines, enrolled in a Divemaster course, subsequently became an Instructor in 1995 and has remained in full time diving ever since.

Almost as soon as technical diving appeared in the Philippines Ralph got himself keenly involved. At the diver level he is qualified through full Trimix, Wreck, and Cave, and has been an IANTD Technical Instructor since 1999, now teaching to IANTD Normoxic Trimix level. He also can present full Trimix and Gas Blending through DSAT.

A great deal of his professional diving in the Philippines has been in the Visayas where he explored a number of sea caves off of Moalboal. He was also for several years involved and in the management and running of the liveaboard MV Tabibuga, which afforded him the opportunity to dive most of the Philippines premier dive sites and gain familiarity with many of our wrecks, such as the Japanese shipwrecks of Coron Bay, the Malapascua wrecks Dona Marilyn and Pioneer Cebu, various sites off Panay and Bantayan Island, plus our more local MV Mactan. He has also explored the spectacular Paglugaban Cave near Miniloc in Palawan.

Ralph and Dave first dived together in Subic Bay in 2000, and having kept in occasional touch, Ralph relocated to join Tech Asia in Puerto Galera at the end of 2004.

Yoon Ho Song, better known to most of us as Tex, comes from Ulsan City in Korea. A Chemistry graduate who turned to a career as a Marine Engineer, Tex began diving back in 1994. Several years in and out of Puerto Galera and surrounds as a part time Divemaster lead him finally to his PADI Instructor course with Asia Divers in 2002, and then to Tech Asia for training as an IANTD diver and later instructor. Tex is an extremely keen Wreck Diver, a conscientious instructor with IANTD to the Normoxic Trimix Level, and is probably one of the earliest of Korean technical divers to have availed of GUE training. His grasp of technical divings academics, and his translational abilities have allowed him to take an extremely active assisting role in many of the higher level trimix courses we have conducted.