Certificated
DİVAN ÇORLU
DİVAN MOMENT ANKARA
DOSSO DOSSİ SULTANAHMET HOTEL
DOUBLETREE BY HILTON BODRUM MARINA VISTA
DOUBLETREE BY HILTON SİRKECİ
ELEGANCE RESORT HOTEL SPA&WELLNESS AQUA (ELEGANCE RESORT HOTEL)
ERESIN HOTELS TAXIM & PREMIER
FERONYA HOTEL
GLORIOUS HOTEL İSTANBUL
GOLDEN AGE HOTEL
GOLDEN WAY HOTEL GİYİMKENT
GOLDENHORN SULTANAHMET
GRAND ANKA HOTEL
GRAND BEYAZIT HOTEL
GRAND GÜLSOY
GRAND HALİÇ HOTEL
GRAND HILARIUM HOTEL
GRAND ÖZTANIK HOTEL
GRAND STAR HOTEL
GRAND YAVUZ HOTEL
GÜNEŞ HOTEL
HEGSAGONE HOTEL
HILTON GARDEN INN İSTANBUL AIRPORT
HILTON GARDEN INN İSTANBUL GOLDEN HORN
