From its humble beginning in 1994 to today, the group of training agencies Scuba Diving International (SDI), Technical Diving International (TDI), and Emergency Response Diving International (ERDI) form one of the largest diving certification agencies in the World – International Training.

With 26 Regional Offices servicing more than 100 countries, the company today far exceeds the original vision the founders had when they conceived the idea on a napkin, sitting at a kitchen table in the early 1990’s.

In 1998 the membership of TDI could no longer be held back from the demand to create a sport diving division of TDI and thus was born Scuba Diving International (SDI). The primary reason for this expansion was that dive instructors valued dealing with an agency that listened to the instructors in the field and created programs that were, and continue to be, very profitable because they are tailored to the way today’s diver wants to learn to dive.