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.


One Stop Education Solution
Scuba Diving International (SDI) has its roots deep in advanced diving. It was created by professional educators, who know what it takes to educate qualified divers at all levels. Technical Diving International (TDI) is the largest technical training agency in the world. It was the launch pad for SDI, and Emergency Response Diving International (ERDI), which is the first global training agency for public safety divers. You will never outgrow the training opportunities offered by Scuba Diving International and its family of agencies.

Your Complete Sport Diving Solution
Training with SDI gives you many options for personal development. Following your first scuba course, there are literally dozens of continuing education opportunities for you to follow. These courses prepare you to dive with confidence and have fun in your local waters or oceans worldwide. In addition, SDI offers an easy-to-follow educational system for personal development, and a proven pathway to dive leadership should you desire a career as a dive professional. Divemaster, Assistant Instructor and Open Water Instructors are among the professional level courses offered and available online.

Global Recognition
Scuba Diving International certifications are recognized worldwide. We have more than 24 international offices and thousands of SDI facilities and instructors around the world. We are members of the World Recreational Scuba Training Council (WRSTC) through its regional RSTCs in Europe, Canada and the US. SDI programs are approved by the European Underwater Federation (EUF) and the International Organization Standardization (ISO). The certifications you earn with SDI will be accepted by dive centers, charter operators, and dive destinations anywhere your adventure may take you!

Innovative Education
From day one of your Scuba Diving International experience you will notice that you are plugged into the most innovative educational system in the diving industry… worldwide!
Scuba Diving International was:

  • First to make online open water training mainstream.
  • First to present online specialties such as wreck, computer nitrox, deep and navigation.
  • First and only insured sport-level Solo Diver™ program.
  • First to release kids’ diving programs.
  • First to allow you to teach “as they dive,” permitting students to learn to dive utilizing a Personal Dive Computer (PDC).

Quality Instruction
Experienced divers know that the quality of their instructor makes a real difference to the quality of their training. Scuba Diving International’s instructors are among the leaders in the sport diving industry. Many also teach technical programs through TDI. With SDI, you are assured that your well-being and education is in the hands of a dedicated professional who has worked through a rigorous training system to earn the respected status of SDI Instructor.

VIP Service… By Design
Scuba Diving International’s training centers have built their reputations by putting extra effort into customer service. When you have a question about diving or dive travel, they are there to help. After all, customer service is a big part of how a facility earns our 5-STAR rating, which has become synonymous with “excellence”. When you become an SDI diver, you join our team of members and we’re always ready to help.

e-Friendly Organization
International Training has a fast, efficient and ever growing online Member’s area on its website. It features an online store, links to our Associate Member’s newsletter, links to information about dive sites, dive news and dive stores, and it’s available when you are, 24/7/365! Scuba Diving International is an e-friendly organization. We are the world leader in convenient online diver training for open water and specialties. The SDI lifestyle gear is also available directly from our online store, and will have you looking like a confident diver in no time. There is also a diver feedback section that you can use to speak directly to headquarters staff at anytime.

Communicating With You
Scuba Diving International uses new technologies and social media to connect with todays tech-savvy divers. As an member of SDI you will receive our Electronic Members Newsletter, and you can interact with headquarters staff instructors on various internet dive forums.

Flexible Programs
With Scuba Diving International, you are part of an organization that is making diving more accessible. For example, our Scubility™ program opens up the adventure of diving to just about everyone living with a disability.

Jump In!
Scuba Diving International is the fastest growing training agency in the world because people like you demand the best in underwater education. Join the leader in innovation, fun and progressive training. Join Scuba Diving International today.