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TDI Technical Divemaster in worldwide: 11 dive centres on TecDiveTools, with agencies, courses taught and a summary of what students say. 4 publish course prices.
TecDiveTools lists 11 dive centres teaching TDI Technical Divemaster worldwide. 4 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). 9 of these 11 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, 6 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
Technical Divemaster is TDI's professional-level certification for divers leading technical diving operations. Candidates must hold a sports diving divemaster certification and demonstrate mastery in one or more technical diving disciplines (Advanced Nitrox, Decompression Procedures, Extended Range, Trimix, etc.). Technical Divers assume leadership roles managing team safety, gas logistics, and operational complexity beyond recreational supervision.
Technical Divers must demonstrate mastery of: advanced risk assessment, team gas management and logistics, rescue procedures at depth and under decompression obligation, technical dive planning and execution, site-specific hazard analysis, and the full scope of emergency response required for the technical discipline(s) in which they're certified.
11 dive centres on TecDiveTools teach TDI Technical Divemaster worldwide: Egypt (5), Malta (2), Indonesia (1), Philippines (1), Thailand (1) and United States (1). Each is listed above.
