Loading dive centres and instructors…
Technical Diver in Thailand: 10 dive centres on TecDiveTools, with agencies, courses taught and a summary of what students say. 9 publish course prices.
TecDiveTools lists 10 dive centres teaching Technical Diver in Thailand. 9 of them publish course prices, in the currency the shop advertises and with the date each was checked — not converted, and not estimated.
Listings are ordered by how much evidence exists about their technical diving, not by a star rating, with any paid Featured listing shown first and marked as such (how rankings work). 6 of these 10 carry reviews we have read and classified as being about technical or overhead training. The count excludes recreational certifications by name, so a busy resort does not outrank a one-instructor cave operation on the volume of its reef trips. Separately, 7 have at least one instructor whose reviews we have read and summarised — a dive centre carries no synthesis of its own. How we read and count reviews.
Looking for individual instructors instead? Instructors in Thailand.
About the course
Deep open-circuit technical diving to 180 fsw (55 msw) using custom-blended nitrox and trimix gas mixtures for extended bottom time and optimal decompression. Candidates gain comprehensive knowledge of EANx operating limits and the application of enriched air and pure oxygen for optimized decompression procedures. This certification unlocks technical wreck, cave, and depth-extension training; it's the foundation for all open-circuit technical specializations.
Gas blending and mixture selection for depth and bottom time, decompression procedures and oxygen toxicity management, single and multi-gas-switch scenarios, emergency procedures at depth and during decompression, buoyancy and trim at technical depths
The centres listed above teach IANTD Technical Diver in Thailand. Requirements are set by the agency, not the centre, so they are the same wherever you train — what differs is price, class size and how much diving is included.
10 dive centres on TecDiveTools teach IANTD Technical Diver in Thailand: Bangkok (3), Phuket (3), Krabi (2), Koh Phangan (1) and Pattaya (1). Each is listed above.
Koh Tao's deeper pinnacles are close enough for routine decompression training, and warm water keeps long stops comfortable. Trimix depths mean going offshore: the Gulf's technical wrecks lie at 43–75 m.
Published prices for IANTD Technical Diver in Thailand range across 5 centres in the TecDiveTools directory. That is THB 30,000–35,000 (5 centres). Prices differ mainly in what they include, so compare the inclusions before comparing the numbers. Prices were last checked in September 2026.
4 days, based on the durations 1 centre publishes for it in Thailand. The time depends on the centre's schedule, weather, and how quickly the required skills are demonstrated — agencies set a minimum number of dives, not a fixed number of days.
At the same tier in TecDiveTools' cross-agency comparison, dive centres in Thailand also teach TDI Extended Range (17), RAID Advanced Decompression (3), RAID Extended Decompression (2) and PADI TecRec Tec 50 (2). They are comparable rather than interchangeable — each agency sets its own standards and card, so check which one your next course accepts.
