| atlas-euro.org | Association for Tourism and Leisure Education |
| arccorp.com | Airlines Reporting Corporation |
| americansightseeing.org | American Sightseeing International |
| air-transport.org | Air Transport Association |
| acriss.org | The Association of Car Rental Industry Systems Standards |
| aaco.org | Arab Air Carriers Organization |
| adventuretravelbusiness.com | Adventure Travel Society |
| satsa.co.za | Satsa - The Southern Africa Tourism Services Association |
| atme.org | Association of Travel Marketing Executives |
| adventuretravel.biz | Adventure Travel Trade Association |
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