I was surprised to see there are only 26 approved(by Sri Lanka Tourism Development Authority) SPAs in Sri Lanka. You can find the list, which was last updated on September 7, 2016, by following this link. You can visit the tourist information section in Sri Lanka Tourism Development Authority website.
List of Names
AZMARA SPA - CINNAMON LAKESIDE |
AZMARA SPA - BENTOTA BEACH HOTEL |
AZMAARA SPA - CINNAMON LODGE |
AZMAARA SPA- CINNAMON BAY |
AZMAARA SPA-CHAAYA TRANZ |
SPA CEYLON AYURVEDA - COLOMBO 02 |
SPA CEYLON AYURVEDA - HIKKADUWA |
SPA CEYLON AYURVEDA - GALLE FORT |
SPA CEYLON AYURUVEDA - COLOMBO 01 |
ANGSANA SPA- CINNAMON GRAND |
DIVIYAN SPA - HERITANCE TEA FACTORY |
DIVIYAN SPA - HERITANCE AHUNGALLE |
THE SANDS DIVIAN SPA |
COCO SPA - MT. LAVINIA HOTEL |
COCO SPA - CLUB BENTOTA |
COCO SPA - CITRUS WASKADUWA |
JAL HEALTH AND BEAUTY SPA INVESTMENT (PVT) LTD |
WHITE BY SPA CEYLON |
ANANTAYA COCO SPA |
ARIYAANA |
ARIYANNA SPA-THE BLUE WATER,WADDUWA |
LEOS GROUP LANKA (PRIVATE) LIMITED |
JIVA SPA - VIVANTA BY TAJ BENTOTA |