ABAM HOTEL LALELI 3* ACRA HOTEL 4* ADA HOMES APART HOTEL TAKSIM 3* AKGUN ISTANBUL HOTEL 5* ALF HOTEL BOUTIQUE HOTEL ALTUN LIFE HOTEL 2* ALZER HOTEL 4* ANTIK HOTEL 4* ANTIS HOTEL SULTANAHMET 4* ANTUSA DESIGN HOTEL 4* ANTUSA PALACE HOTEL 4* APRILIS GOLD HOTEL 4* APRILIS HOTEL SULTANAHMET 4* ARENA HOTEL 4* ARMAGRANDI SPINA HOTEL SULTANAHMET 4* ART EFES HOTEL 3* ARTI BOUTIQUE HOTEL 3* AVICENNA HOTEL 4* AYASULTAN HOTEL 3* AZADE HOTEL & PREMIER 4* BEST WESTERN EMPIRE PALACE 4* BLACK BIRD HOTEL 4* BLUE HOUSE HOTEL 3* CARTOON HOTEL 4* CIHANGIR PALACE HOTEL 3* CIRAGAN PALACE KEMPINSKI 5* LUXURY CONRAD ISTANBUL BOSPHORUS 5* CROWNE PLAZA LALELI OLD CITY 5* CVK PARK BOSPHORUS 5* LUXURY DALAN HOTEL LALELI 3*+ DANIS HOTEL ISTANBUL 4* DE MAREE HOTEL 3* DEDEM BOUTIQUE HOTEL 3* DELTA HOTEL 3* DELUXE NEWPORT HOTEL 3* DIANA HOTEL 2* DIVAN ISTANBUL CITY 4* 4* DIVAN ISTANBUL OTEL 5* DIVAS HOTEL SULTANAHMET 3* DOS HERMANOS ISTANBUL 2* DOSSO DOSSI HOTELS DOWNTOWN 5* DOSSO DOSSI HOTELS OLD CITY 4* DoubleTree by Hilton Istanbul Old Town 5* DUNDAR HOTEL SPA 3* EDIBE SULTAN HOTEL 3* ELANAZ HOTEL 3* ENDERUN HOTEL BEYAZIT 4* ERESIN HOTELS TOPKAPI 5* FERONYA HOTEL 4* FORS HOTEL ( SPECIAL CLASS ) 3* GEDIKPASA KONAGI 3* GEZI HOTEL BOSPHORUS 4*+ GOLDEN CROWN HOTEL 3* GOLDEN HILL HOTEL 4* GOLDEN HORN ISTANBUL 4* GOLDEN HORN SIRKECI 4* GOLDEN SAND HOTEL 3* GRAND ANT HOTEL 3* GRAND ARAS HOTEL & SUITES 4* GRAND BEYAZIT HOTEL 4* GRAND BOSFOR HOTEL 3* GRAND EMIN HOTEL LALELI / YENIKAPI 4* GRAND LIZA HOTEL 3* GRAND MARCELLO HOTEL 4* GRAND ONS HOTEL 3* GRAND PAMIR HOTEL 3* GRAND VATAN HOTEL 3* GREAT FORTUNE HOTEL AND SPA 4*+ HAGIA SOFIA MANSIONS ( CURIO COLLECTION BY HILTON ) 5* HAMIT HOTEL ISTANBUL 2* HHK DOWNTOWN HOTEL 4* HILTON ISTANBUL BOSPHORUS 5* HIPPODROME HOTEL SULTANAHMET 3* HIRA HOTEL 3* HISTORIAL HOTEL BOUTIQUE HOTEL HOTEL MIKLAGORD 3* HOTEL BAZAAR 3* HOTEL BULVAR PALAS 4* HOTEL CENTRUM ISTANBUL 3* HOTEL CIGNO ISTANBUL 3* HOTEL DENIZ HOUSES 3* HOTEL FEHMI BEY 3* HOTEL GRAND ASIYAN 4* HOTEL GRAND MARK 3* HOTEL IPEK PALAS 4* HOTEL MILANO ISTANBUL 3* HOTEL PIYA SPORT 4* HOTEL SAHINLER 3* HOTEL SOKULLU PASA 4* HOTEL SULTAN'S INN HOTEL 3* HOTELLINO SIRKECI SPECIAL CLASS ILKAY HOTEL 3* INNOVA SULTANAHMET HOTEL 4* ISTANBUL HOLIDAY HOTEL 3* KADIKOY KERVANSARAY HOTEL 4* KAYA MADRID HOTEL 3* KECIK HOTEL 3* KLAS HOTEL 4* KUPELI PALACE HOTEL 3* LADY DIANA 4* LALAHAN HOTEL 4* LEGACY OTTOMAN HOTEL 5* LIVA HOTEL CIHANGIR 3* MAGNIFICENT HOTEL KUMKAPI / SULTANAHMET 3* MARCELLO HOTEL 3* MARTINENZ HOTEL 3* MEGARON HOTEL BOUTIQUE HOTEL METROLUX HOTEL LALELI 3* MISS ISTANBUL HOTEL & SPA 4* MYDREAM ISTANBUL HOTEL BOUTIQUE HOTEL NANDA HOTEL 3* NAYLA PALACE HOTEL 3* NAZ WOODEN HOUSE INN 3* OLD CITY SULTANAHMET 3* OTTOMAN'S LIFE HOTEL BOUTIQUE 4* OTTOMAN HOTEL IMPERIAL 4* OTTOMAN HOTEL PARK SULTANAHMET 4* OTTOMAN LUXURY 3* OTTOMAN TIME HOTEL 2* PERA PALACE HOTEL 5* POINT HOTEL BARBAROS 5* PRESTIGE HOTEL 3*+ RADISSON BLU HOTEL ISTANBUL SISLI 5* RAIMOND HOTEL 3* RAMADA PLAZA BY WYNDHAM ISTANBUL CITY CENTER 5* REALSTAR HOTEL 4* RECITAL HOTEL 3* REGIE OTTOMAN ISTANBUL 4* RHYTHM HOTEL KUMKAPI BOUTIQUE HOTEL SARI KONAK HOTEL 4* SARNIC PREMIER 3* SEA MANSION SUITES 5* SIM HOTEL ISTANBUL 3* SIRKECI MANSION HOTEL 4* SKALION HOTEL & SPA 4* SOGUT HOTEL OLD CITY ISTANBUL 3* SORRISO DUE HOTEL 4* SPECTRA HOTEL 3* SPINEL HOTEL 3* STONE HOTEL 3* SULTANAHMET CESME HOTEL 3* SULTANAHMET PARK HOTEL 3* SULTANHAN HOTEL SPECIAL CLASS SUMENGEN HOTEL 4* SUN COMFORT HOTEL 3* SURA HAGIA SOPHIA HOTEL 5* SUREYYA HOTEL 3* TASHKONAK HOTEL 3* TAXIM EXPRESS HOTEL 4* TAYHAN HOTEL 3* THE BYZANTIUM HOTEL 4* THE CITY HOTEL 4* THE MARMARA SISLI 4* THE MARMARA TAKSIM 5* THE MERETTO ISTANBUL OLD CITY 4* THE MERETTO LALELI OLD CITY 4* THE PEAK HOTEL TAKSIM 4* THE TRIP HOTEL KUMKAPI 3* THE XANADU HOTEL 3* TILIA HOTEL 4* TITANIC CITY TAKSIM 4* TIYATRO HOTEL OLD CITY 3* TOPKAPI SABENA HOTEL 3* VICTORY HOTEL & SPA 4*+ VITAL HOTEL FULYA 4* VIVA HOTEL KUMKAPI 3* WHITE MONARCH HOTEL 4* YESILPARK HOTEL 3* ZURICH HOTEL LALELI 4*