Today, 23 October 2025, Understanding Animal Research (UAR) has published a list of the ten organisations that carried out the highest number of animal procedures \u2013 those used in medical, veterinary, and scientific research \u2013 in Great Britain in 2024. These statistics are freely available on the organisations\u2019 websites as part of their ongoing commitment to transparency and openness around the use of animals in research.\u00a0<\/p>\n
This list coincides with the publication of the Home Office\u2019s report on the statistics of scientific procedures on living animals in Great Britain in 2024.\u00a0<\/p>\n
The ten listed organisations were responsible for 1,379,399 procedures, 54% (more than half) of the 2,637,578 procedures carried out on animals for scientific research in Great Britain in 2024*. Of these 1,379,399 procedures, more than 99% were carried out on mice, fish, rats, and birds and 82% were classified as causing pain equivalent to, or less than, an injection.\u00a0<\/p>\n
The ten organisations are listed below alongside the total number of procedures they carried out in 2024. Each organisation\u2019s name links to its animal research webpage, which includes more detailed statistics. Case studies explaining how animal research has been used in recent medical research are also provided in the Notes to Editors section. This is the tenth consecutive year that organisations have come together to publicise their collective statistics and examples of their research.<\/p>\n
OrganisationNumber of Procedures (2024)The Francis Crick Institute<\/a><\/p>\n 200,055<\/p>\n University of Oxford<\/a><\/p>\n 199,730<\/p>\n University of Cambridge<\/a><\/p>\n 190,448<\/p>\n UCL<\/a><\/p>\n 175,687<\/p>\n Medical Research Council<\/a><\/p>\n 140,602<\/p>\n University of Edinburgh<\/a><\/p>\n 136,862<\/p>\n King’s College London<\/a><\/p>\n 106,300<\/p>\n University of Glasgow<\/a><\/p>\n 99,509<\/p>\n University of Manchester<\/a><\/p>\n 81,252<\/p>\n