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CCR Trimix Diver in worldwide: 11 dive centres on TecDiveTools, with agencies, courses taught and a summary of what students say. 6 publish course prices.
TecDiveTools lists 11 dive centres teaching CCR Trimix Diver worldwide. 6 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). 6 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
This full technical certification qualifies Normoxic Trimix-trained divers to deploy hypoxic and normoxic trimix mixtures on closed-circuit rebreathers with multi-setpoint strategies across depths to 330 fsw (100 msw). It enables the most efficient technical diving possible at intermediate and deep depths through oxygen partial-pressure management, forming the foundation for expedition-level CCR diving.
Demonstrate mastery of hypoxic and normoxic loop operation, multi-depth setpoint transitions, comprehensive stage management, and advanced decompression strategies on CCR.
11 dive centres on TecDiveTools teach IANTD CCR Trimix Diver worldwide: Mexico (4), United States (4), Thailand (2) and Indonesia (1). Each is listed above.
One centre in the TecDiveTools directory publishes a whole-course price for IANTD CCR Trimix Diver worldwide: Bali Dive Trek, at IDR 29,700,000. 1 centre charges by the day instead, which is not comparable with a course total. 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 6 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 Advanced Mixed Gas CCR (27), 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.
