Abbreviation | TDI |
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Motto | The most trusted training for explorers |
Formation | 1993 |
Type | NGO |
Purpose | Scuba Diver & Instructor training and certification |
Headquarters | World Headquarters, Stuart, Florida, United States |
Location |
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Region served
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Worldwide |
Key people
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Parent organization
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International Training |
Affiliations | |
Website | http://www.tdisdi.com |
Technical Diving International (TDI) claims to be the largest technical diving certification agency in the world, and one of the first agencies to offer mixed gas and rebreather training. TDI specializes in more advanced Scuba diving techniques, particularly diving with rebreathers and use of breathing gases such as trimix and heliox. TDI trained divers have explored wrecks that are usually considered beyond the recreational range, such as the Andrea Doria as well as cave diving in Spain, Australia, Florida, Czech Republic and Mexico and assisting as support divers on world record freedives done in the Red Sea.
TDI provides courses and certification for divers and for instructors.
TDI was founded in 1994 by Bret Gilliam, John Comly, John Crea, David Sipperly and Mitch Skaggs after a split away from International Association of Nitrox and Technical Divers (IANTD) in 1993. The agency aimed to provide training materials and education for specialized diving situations. Some courses offered by TDI include open circuit courses such as diving with Nitrox as well as Rebreather courses. They also provide training for overhead environments like caves and wrecks, mixed gas training and were one of the first diving agencies to create a comprehensive insurance plan for technical diving instructors.
In 1998, the International Training brand expanded their offerings by starting a sister organization known as Scuba Diving International (SDI) focusing on the sport side of scuba diving. In 2000, another sister organization was launched called Emergency Response Diving International (ERDI) to teach public safety diving to public safety organizations.