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Technical Diver in worldwide: 51 dive centres on TecDiveTools, with agencies, courses taught and a summary of what students say. 30 publish course prices.
TecDiveTools lists 51 dive centres teaching Technical Diver worldwide. 30 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). 33 of these 51 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, 28 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.
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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
51 dive centres on TecDiveTools teach IANTD Technical Diver worldwide: Mexico (30), Thailand (10), United States (8) and Indonesia (3). Each is listed above.
Published prices for IANTD Technical Diver worldwide range across 7 centres in the TecDiveTools directory — roughly US$800 to US$1,050 at current exchange rates. In each centre's own currency: THB 30,000–35,000 (5 centres) and IDR 15,000,000–17,500,000 (2 centres). Prices differ mainly in what they include, so compare the inclusions before comparing the numbers. Prices were last checked in September 2026.
Between 4 and 5 days, based on the durations 2 centres publish for it worldwide. 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 worldwide also teach TDI Extended Range (127), RAID Advanced Decompression (7), RAID Extended Decompression (5) and PADI TecRec Tec 50 (4). They are comparable rather than interchangeable — each agency sets its own standards and card, so check which one your next course accepts.
