| homestead.com | Zoo Registrars Association (ZRA) |
| seaza.org | South East Asian Zoos Association |
| eaza.net | European Association of Zoos and Aquaria |
| deutsche-tierparkgesellschaft.de | Deutsche Tierpark Gesellschaft |
| caza.ca | Canadian Association of Zoos and Aquariums |
| azh.org | Association of Zoological Horticulture |
| aszk.org.au | Australasian Society of Zoo Keeping |
| arazpa.org.au | Australasian Regional Association of Zoological Parks and Aquaria |
| azfa.org | Aquarium and Zoo Facilities Association |
| aza.org | Association of Zoos and Aquariums |
Switzerland , Zurich , Zrich