The RDA International Coach Tourism Federation e.V. (founded in 1951) represents the complete spectrum of the coach tourism business activity. The RDA is the leading federation in Europe for coach and group tourism with about 3,000 member companies
ASTA (American Society of Travel Agents) is the world's largest association of travel professionals. Members include travel agents and the companies whose products they sell such as tours, cruises, hotels, car rentals, etc.