Unidentified Flying Objects are said to have been photographed and filmed in every country in the world, and witnessed by people from many different backgrounds. Yet governments are generally unwilling even to acknowledge the possibility of UFOs and extraterrestrials, and it is civilian organizations that have taken the lead in investigating them.Over a thousand organizations and publications dedicated to investigating alleged UFOs and extraterrestrials are listed in this directory. It focuses on those groups that conduct field research or review investigations (locally, nationally, or internationally), such as the Archives for UFO Research, founded in 1973 and based in Sweden, the British UFO Research Association, founded in 1962 and based in England, Centro Brasileiro de Pesquisas de Discos Voadores, founded in 1983 and based in Brazil, Flying Saucer Review, first published in 1955 and based in England, and the National UFO Reporting Center, founded in 1974 and based in Washington State, to name just a few. The entries provide contact information, including the organization or publication's address and telephone number, and in many instances, the organization or publication's fax number, website and email address.