PADI (Professional Association of Diving Instructors) is the largest dive agency in the world, operating in 186 countries and territories. It has a global network of more than 6,600 dive centers and resorts, as well as over 128,000 professional members.
SSI (Scuba Schools International) is another dive agency, with more than 3,500 authorized dealers and 35 regional centers, along with offices worldwide.
Both PADI and SSI offer internationally recognized diver training programs, and their certifications are widely accepted. It’s important to note that both organizations are for-profit entities.