Cryonics UK

Cryonics UK is a British nonprofit organization that provides SST services. It was founded by Alan Sinclair in 1989. Cryonics UK is the operating name of the Human Organ Preservation Research Trust, a registered charity since 1991.​

In 2013, Cryonics UK perfused Sylvia Sinclair and sent her to the United States where she was cryopreserved by the Cryonics Institute. In 2016, Cryonics UK perfused "JS", a British 14-year-old girl, and sent her to CI.