NAUI - AUI Worldwide is the world's oldest, most respected and second largest diver training agency in the world. Established in 1959 as a not-for-profit membership association and organized solely to support and promote Dive Safety Through Education, NAUI continues as the recognized leader in innovative education.
SCUBA Schools International - Wherever you are in the world, SSI is there to serve your diving needs. We have Regional Centers in many countries across the world ready to make your serious diving serious fun.
YMCA SCUBA - The history of national dive training in the United States began with the development of the YMCA Scuba Program. As divers and instructors, we have dedicated ourselves to the quest for ever-better ways to teach others to enjoy the underwater world. That is our heritage. Throughout the history of sport diving, YMCAs have maintained unsurpassed standards. Those standards have changed as our knowledge and depth of experience have changed. Others have followed. That is our record.
