International HRS
- Offer a range of hotel reservation services for Istanbul and Turkey. Company profile and links to their properties included.
- http://www.internationalhrs.com/

Orient Express Hotels
- Hotels, tours and travel guide to Istanbul and the country.
- http://www.orientexpresshotels.net/

Istanbul Discount Hotels
- Discount reservation service for hotels in Istanbul.
- http://www.istanbuldiscounthotels.com/

Airport Hotels Istanbul
- Hotels around Istanbul International Airport.
- http://www.istanbulairporthotels.com

Hotels in Istanbul
- Secure online reservations for selected Istanbul hotels. Offers discounted rates and special deals.
- http://www.hotelsinistanbul.net/

Sasha's Istanbul Hotel Reservations
- Offers cheap local rates, complete hotel guide, Istanbul hotel search engine and great discount hotel choices.
- http://www.sashahotelsistanbul.com/

Istanbul Hotel Reservations
- Includes a selection of various types of hotels.
- http://www.istanbulhotelreservations.com/

Istanbul Old City Hotels
- Online reservation system for about 170 Istanbul hotels and hostels located in the old city part of the city.
- http://www.istanbuloldcityhotels.com/istoldcity/

All Hotels Istanbul
- Offering information and booking services for a selection of hotels around the old city, with additional information on local tours, car rentals, vacation packages in the country, as well as a map.
- http://www.allhotelsistanbul.com/

Istanbul Hotels
- Car rental services, custom tours, private guide services, information about the city and accommodation.
- http://www.istanbul-hotels.net/

Budget Hotels
- Budget Hotels in the Old City of Istanbul.
- http://www.istanbulbudgethotels.com

Hotel and Travel Services in Istanbul
- Complete listing of all hotels by classification in Istanbul and throughout Turkey.
- http://www.istanbulhotelstravel.com

Istanbul Pera Hotels
- A comprehensive guide to Istanbul with accommodation guide, instant online reservation service, and guides to dining, entertainment and shopping.
- http://www.istanbulperahotels.com/pera/

Istanbulshotels.com
- Directory of hotels, tours, and recreation.
- http://www.istanbulshotels.com

Istanbul Hotels Center
- A catalog of categorized establishments in the city.
- http://www.istanbulhotelscenter.com/

Istanbul Hotel Guide
- Information about various selected discounting hotels and local information such as history, places to see and online airport board. Travel agents and hotel equipment producers are also listed.
- http://www.istanbulhotels.com/