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About TDI
TDI was formed in 1994 by some of diving’s most experienced instructors to bring technical applications of the sport to a wider audience.

Whether your interests lie in nitrox, rebreathers, mixed gas or any of the many other programs that TDI offers you can be assured that you will be participating in training that offers you the "cutting edge" of diving technology.

TDI have offices worldwide and over 10,000 instructors teaching their programs. TDI has become the largest international specialized dive agency. Diving is constantly changing and TDI staff are always looking ahead, striving to continue their record as the innovators of the industry.