Here is a list of Tour Companies that provide tours in Europe

• Adventures by Disney
• Air France Holidays
• Apple Vacations
• Avanti Destinations
• Brendan Tours
• Brian Moore International Tours
• CIE Tours Specializing in Ireland
• Collette Tours
• Contiki Tours (for the under 35 crowd, specializing in college students)
• Cosmos Tours
• Costco Travel
• EEI
• European Destinations
• Europe Vacations
• Friendly Planet Travel
• Gate 1
• General Tours
• Globus Gateway
• Go Andiamo Tours
• GoToday.com
• Gogo Worldwide Vacations
• Grand Circle Travel
• Homeric Tours
• Image Tours
• Insight Tours
• Key Tours
• Mayflower Tours
• Perillo Tours
• Picasso Tours
• Rick Steve's Tours (best tours for getting into the culture of Europe)
• Singles, Friends - Solo Travel Prefer not travel alone? Here is a great way to see new exciting destinations and make new friends
• Tauck Tours
• Trafalger Tours
• TravelBound You will need to book through a travel agent but site has useful pages
• Unlimited Vacations and Cruises