Raya Divers - Offers diving in Racha Yai Island. [Also in Finnish]
Santana Diving - PADI 5 Star dive center. Offers live-aboards, day trips, and instructor training. Based in Patong Beach.
Sea Bees Diving - Provides dive safaris to the Similan and Surin Islands as well as the whole PADI and CMAS education program.
Sharkey Scuba - Provides information on scuba diving day trips, PADI diving courses, private boat charters and Phuket dive sites. Also contains diving articles on various subjects including whale sharks and the tsunami.