- International Student Travel Confederation
 - A nonprofit confederation of student travel organisations around the world whose focus is to develop, promote and facilitate travel among young people and students. - Friendship Force International
- International cultural exchange organisation promoting friendship and goodwill through homestay exchanges.
- Connecting: Solo Travel Network
- Solo-friendly holiday ideas without expensive single supplement charges. Members share reader reports, tips, and hospitality. Includes travel companion ads.
- Student and Youth Travel Association (SYTA)
- Nonprofit professional trade association that promotes student travel and seeks to foster professionalism among providers.
- European Travel Commission (ETC)
- Responsible for the worldwide promotion overseas of Europe as a tourist destination.
- Backpack Nation
- Organisation founded by world traveller and author Brad Newsham, which sends individual travellers from developed countries as roving ambassadors to the world's less-wealthy countries.
- Evergreen Bed and Breakfast Club
- International hospitality exchange club for people over 50 where members host each other in their own homes for minimal fees.
- Servas
- International, non-profit organisation that provides opportunities for personal contact between people of diverse backgrounds. Hosts welcome, share, and shelter travellers from around the world.
- Hospitality Club, The
- Organisation that brings together travellers and locals. Members can find accommodation or tours, send messages, and post comments about their experiences.
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