Certificated
PRESTIGE HOTEL
RADISSON BLU BOSPHORUS HOTEL
RADISSON BLU HOTEL İSTANBUL PERA
RADISSON BLU HOTEL ISTANBUL SISLI
RADISSON BLU HOTEL KAYSERI
RAFFLES İSTANBUL
RAMADA ISTANBUL OLD CITY
RAMADA İSTANBUL TAKSİM
RAMADA PLAZA ISTANBUL BY WYNDHAM ISTANBUL CITY CENTER
RAMADA PLAZA ISTANBUL TEKSTILKENT
RAMADA PLAZA IZMIT
RAMADA TEKIRDAG HOTEL
REGARD HOTEL
REGIE OTTOMAN İSTANBUL
RESIDENCE HOTEL
RICHMOND HOTEL İSTANBUL
RICHMOND NUA WELLNESS SPA
RICHMOND PAMUKKALE
RİVA HOTEL
ROMANCE İSTANBUL HOTEL
SAMİR HOTEL
SED BOSPHORUS HOTEL
SELÇUK OTEL ŞEMS-İ TEBRİZİ
SELGE BEACH RESORT