PADI’s corporate headquarters, PADI Worldwide, is located in California, United States. PADI Offices around the world serve more than 130,000 individual professional members and more than 5,300 dive centers and resorts in more than 175 countries. Translations of PADI materials are available in at least 26 languages. PADI’s market share worldwide is approximately 70 percent.

PADI courses range from entry levels (such as Scuba Diver and Open Water Diver) to master scuba diver and a full range of instructor certificates. The system is composed of standardized “modules” divided into theory and practice. Theory is mainly conveyed by way of self-study and confirmation of the student’s level of knowledge in discussions with a diving instructor, while practice is obtained through training in pools and in open water. Upon completion of each course, a certificate is issued which is widely accepted as proof of proficiency throughout the world.