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TDI Technical Divemaster in worldwide: 30 instructors on TecDiveTools, with the agencies and courses each teaches, and a summary of what students say.
TecDiveTools lists 30 instructors teaching TDI Technical Divemaster worldwide.
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). 8 of these 30 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, 8 have a written synthesis of what reviewers say about them. 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.
30 instructors on TecDiveTools teach TDI Technical Divemaster worldwide: Egypt (21), Malta (3), Indonesia (2), United States (2), Philippines (1) and Thailand (1). Each is listed above.
