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Advanced Mixed Gas CCR in worldwide: 27 dive centres on TecDiveTools, with agencies, courses taught and a summary of what students say. 11 publish course prices.
TecDiveTools lists 27 dive centres teaching Advanced Mixed Gas CCR worldwide. 11 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). 24 of these 27 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, 23 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
The most advanced closed-circuit rebreather certification in TDI's progression, extending mixed-gas CCR diving to 100m/330ft. It's for divers who've built real time on the Mixed Gas CCR course and want to push the unit to its deepest technical range, combining hypoxic trimix gas planning with rebreather-specific bailout procedures. It's the final rung on TDI's CCR ladder — there's no further depth-tier CCR course beyond it. Taught entirely on the specific rebreather unit, in open water, with substantial logged time on that unit required before enrolling.
Instructor trainer competencies: unit-specific emergency procedures, hypoxic gas management instruction, multi-stage decompression teaching, student assessment at extreme depths, risk management for deep rebreather operations
27 dive centres on TecDiveTools teach TDI Advanced Mixed Gas CCR worldwide: United States (11), Egypt (5), Indonesia (4), Malta (3), Philippines (3) and Thailand (1). Each is listed above.
Published prices for TDI Advanced Mixed Gas CCR worldwide range across 4 centres in the TecDiveTools directory — roughly US$1,750 to US$2,200 at current exchange rates. In each centre's own currency: €1,600–€1,950 (3 centres) and IDR 35,000,000 (1 centre). Prices differ mainly in what they include, so compare the inclusions before comparing the numbers. Prices were last checked in September 2026.
At the same tier in TecDiveTools' cross-agency comparison, dive centres worldwide also teach IANTD CCR Trimix Diver (11), ANDI CCR Level 5 Hypoxic Trimix (1) and PADI TecRec Tec 100 CCR (1). They are comparable rather than interchangeable — each agency sets its own standards and card, so check which one your next course accepts.
