Always mention TurkeyTravelPlanner when you contact these agencies for these reasons.
Pupa Travel 
Pupa Tourism is a highly recommended, all-around agency available to make any arrangements for you anywhere in Turkey: quality guided tours, hotel reservations, car rental, airport pick-up and more. Pupa is one of the best staffed agencies in country with personnel in Istanbul, Cappadocia, and Ephesus. If you’re accustomed to premium, no-compromise travel experiences, they understand you, and they can fulfill your requirements. More...
Efendi Travel 
A highly-recommendable Istanbul-based travel agency for those with moderate to deluxe travel styles, Efendi Travel can pick you up at the airport or cruise ship dock, transfer you to your Istanbul hotel, arrange for private guides, tours, and rental cars, and onward flights, all with 24-hour availability and personal service. They also operate several good value-for-money hotels in Istanbul, and innovative walking tours in Istanbul. Their Backpackers Travel division is especially good for travelers looking for budget-to-moderately-priced travel arrangements. More...
Argeus Travel & Events 
A fine all-around agency available to make any arrangements for you anywhere in Turkey: hotel reservations, car rental, airport pick-up, and good guided tours. I've been recommending Argeus for decades, and continue to receive glowing reports from their satisfied clients. More...
Sojourn Turkey Custom Travel 
Americans Chris and Angela Vannoy founded Sojourn and live full-time in Turkey, operating custom-designed tours that highlight the best of local culture and cuisine for years. They work side-by-side with their exceptional Turkish guides and a professional staff daily to provide the highest standards of customer service while creating your dream tour of Turkey. More...
Anker Travel 
If your trip includes both Greece and Turkey, Anker Travel is the travel agency for you! Greek island ferries, international ferries, flights, guides, and hotels, cruisesand tours in both Greece and Turkey: they know it all. Is your cruise ship stopping at Kuşadası (Ephesus)? Ask Anker about their special tours of the ruins and Aegean Turkey—much better value than you'll get from your cruise line. More...
Best Travel Agencies 