Ocean Marina Yacht Club
 Address: 274/1-9 M. 4 Sukhumvit Road Km. 157
 Tel: 237-300/8
 Fax: 237-308

 Piak Diving Center
 Address: 109/18 M. 12 Jomtien Beach Road
 Tel: 231-008

 Royal Varuna Yacht Club
 Address: 286 M. 12 Pratamnak Road
 Tel: 250-116, 250-367/8
 Fax: 250-115