| UFO Organizations |
| Aerial Phenomena Enquiry Network |
| Aerial Phenomena Research Organization |
| British UFO Research Association |
| CNES |
| COMETA |
| Center for UFO Studies |
| Citizens Against UFO Secrecy |
| Civilian Saucer Intelligence |
| Coalition for Freedom of Information |
| The Disclosure Project |
| Fund for UFO Research |
| Institute for Cooperation in Space |
| Kosmopoisk |
| Mutual UFO Network |
| Na Progu Nieznanego |
| National Institute for Discovery Science |
| National Investigations Committee On Aerial Phenomena |
| National UFO Reporting Center |
| Project 1947 |
| SOBEPS |
| UFO Investigators League |
| UFO-Norge |
| UFO-Sweden |
| UFORM |
| Ufoetry |
