Certificated
CUCI HOTEL DI MARE BAYRAMOĞLU (CUCİ HOTEL)
CVK HOTELS
DARKHILL HOTEL
DARUSSAADE İSTANBUL HOTEL
DEDEMAN BOSTANCI ISTANBUL HOTEL & CONVENTION CENTER
DEDEMAN ISTANBUL
DEDEMAN ZONGULDAK
DEDEPARK HOTEL
DEĞİRMEN OTEL
DIANA HOTEL
DİLA HOTEL
DİVAN BODRUM
DİVAN CITY İSTANBUL
DİVAN ÇORLU
DİVAN İSTANBUL
DİVAN ISTANBUL ASIA
DİVAN MOMENT ANKARA
DOSSO DOSSİ SULTANAHMET HOTEL
DOUBLETREE BY HILTON BODRUM MARINA VISTA
DOUBLETREE BY HILTON HOTEL AVANOS-CAPPADOCIA
DOUBLETREE BY HILTON HOTEL İSTANBUL - MODA
DOUBLETREE BY HILTON HOTEL İSTANBUL-OLD TOWN
DOUBLETREE BY HILTON İSTANBUL - PIYALEPAŞA
DOUBLETREE BY HILTON SİRKECİ