The T2K experiment is hosted by the KEK High Energy Accelerator Research Organization.
The following institutes also participate in the T2K experiment:
- Boston University (USA)
- CEA/IRFU, Saclay (France)
- CERN (Switzerland)
- Colorado State University (USA)
- Duke University (USA)
- Eötvös Loránd University (ELTE) (Hungary)
- ETH Zurich (Switzerland)
- ICRR, Kamioka Observatory (Japan)
- IFAE, Barcelona (Spain)
- IFIC, Valencia (Spain)
- Institute For Interdisciplinary Research in Science and Education, IFIRSE (Vietnam)
- IFJ PAN, Krakow (Poland)
- ILANCE (France/Japan)
- Imperial College London (UK)
- INFN Sezione di Bari (Italy)
- INFN Sezione di Roma (Italy)
- INR, Moscow (Russia)
- Institute of Physics (IOP), Vietnam Academy of Science and Technology (VAST) (Vietnam)
- Institute of Science Tokyo (Japan)
- Joint Institute for Nuclear Research (JINR) (Russia)
- Johannes Gutenberg-Universitat Mainz (Germany)
- Kavli IPMU (WPI), University of Tokyo (Japan)
- Keio University (Japan)
- King’s College London (UK)
- Kobe University (Japan)
- Kyoto University (Japan)
- Lancaster University (UK)
- LBNL, Berkeley (USA)
- LLR Ecole polytechnique (IN2P3) (France)
- Louisiana State University (USA)
- LPNHE, UPMC, Paris (France)
- Michigan State University (USA)
- Miyagi University of Education (Japan)
- Napoli University and INFN (Italy)
- NCBJ, Warsaw (Poland)
- Okayama University (Japan)
- Osaka City University (Japan)
- Oxford University (UK)
- Padova University and INFN (Italy)
- Queen Mary, University of London (UK)
- Royal Holloway University of London (UK)
- RWTH Aachen University (Germany)
- SLAC National Accelerator Laboratory (USA)
- STFC Rutherford Appleton Laboratory and Daresbury Laboratory (UK)
- Stony Brook University / State University of New York at Stony Brook (USA)
- Tohoku University (Japan)
- Tokyo Metropolitan University (Japan)
- Tokyo University of Science (Japan)
- TRIUMF (Canada)
- Universidad Autónoma de Madrid (Spain)
- University of Alberta (Canada)
- University of Bern (Switzerland)
- University of California, Irvine (USA)
- University of Colorado (USA)
- University of Geneva (Switzerland)
- University of Glasgow(UK)
- University of Houston(USA)
- University of Liverpool (UK)
- University of Pennsylvania (USA)
- University of Pittsburgh (USA)
- University of Regina (Canada)
- University of Rochester (USA)
- University of Seville (Spain)
- University of Sheffield (UK)
- University of Silesia, Katowice (Poland)
- University of Tokyo (Japan)
- University of Toronto (Canada)
- University of Victoria (Canada)
- University of Warwick (UK)
- University of Washington (USA)
- University of Winnipeg (Canada)
- VNU University of Science (Vietnam)
- Warsaw University (Poland)
- Warsaw University of Technology (Poland)
- Wroclaw University (Poland)
- Yokohama National University (Japan)
- York University (Canada)
These institutes have participated in T2K in the recent past:
