The IGPP is a German parapsychology organization based in Freiburg that carries out experimental psi research and offers educational and counselling services. 

American non-profit research institute co-founded in 1973 by astronaut Edgar Mitchell to investigate human potential and noetic experiences using the tools and techniques of science.

Psi-research organization established in 1994 in Buenos Aires, Argentina, which has carried out ESP and other research. It also offers educational resources and publishes a regular online bulletin.

American organization founded in 1981 to research near-death experiences, which also offers education and support. 

Research and educational foundation that grew from the PEAR laboratory, aimed at fostering the understanding and use of consciousness in science, art, education and health. 

Leading parapsychology journal founded by JB Rhine's group at Duke University, covering mainly experimental reports but also including research of spontaneous psychic cases, historical papers, critiques and literature reviews.  

This article by Professor Caroline Watt describes the Koestler Parapsychology Unit, one of the world’s leading centres for the scientific study of psi phenomena. The KPU is based at Edinburgh...

Nineteenth-century rationalist debating club notable for its 1871 report of an investigation that conclusively established certain claims of psychokinetic phenomena as genuine.

Prize offered until 2015 by the James Randi Educational Foundation (JREF), and never claimed, 'to any person who demonstrates any psychic, supernatural, or paranormal ability under satisfactory observation'. 

American non-profit international society of professional researchers engaged in the study of psi phenomena, founded in 1957 and based in Columbus, Ohio.