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Technical diving in worldwide: 598 instructors on TecDiveTools, with the agencies and courses each teaches, and a summary of what students say.
No instructors here offer SDI, so that filter was removed.
TecDiveTools lists 598 instructors teaching technical diving 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). 210 of these 598 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, 185 have a written synthesis of what reviewers say about them. How we read and count reviews.
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TecDiveTools lists 598 technical diving instructors worldwide: Mexico (153), United States (120), Egypt (96), Philippines (85), Thailand (60) and Indonesia (46), and 1 more country. The directory is not a census — it lists the instructors we have been able to verify, and grows as more are added.
TDI (483), IANTD (100), GUE (28), NSS-CDS (16), SSI XR (15), RAID (13), PADI TecRec (9), ANDI (2), PSAI (2) and UTD (1), counted by how many of the 598 instructors listed worldwide teach each. 56 teach more than one agency. The agency sets the standards and issues the card; the instructor sets the price and schedule. Recreational training (ERDI) is taught too and is not counted here.
Published whole-course prices at dive centres worldwide, by training tier — Technical Sidemount: roughly US$360 to US$1,650 (35 centres, converted from local prices); Advanced Nitrox: roughly US$260 to US$1,000 (35 centres, converted from local prices); Advanced Nitrox / Decompression Procedures: roughly US$440 to US$1,800 (33 centres, converted from local prices); Extended Range: roughly US$500 to US$1,600 (33 centres, converted from local prices); Intro to Tech / Essentials: roughly US$280 to US$1,650 (29 centres, converted from local prices). Each figure is a centre's own published price; they differ mainly in what they include (gas, equipment, dives), so compare inclusions before numbers. Every course page lists the individual prices.
Yes — 281 of the 598 instructors listed worldwide teach cave or cavern courses. Most often: TDI Cavern (193), TDI Intro to Cave (182), TDI Full Cave (151) and TDI Stage Cave (77).
Yes — 195 of the 598 instructors listed worldwide teach rebreather courses. Most often: TDI Air Diluent CCR (133), TDI Air Diluent CCR Decompression Procedures (127), TDI Helitrox CCR Decompression Procedures (76) and TDI Mixed Gas CCR (63). CCR training is unit-specific, so check which units a listing supports.
