The following participants at the conference are involved in or have previously shown interest in Annex 51 during its setup phase:
- Caroline Haglund Stignor, SP Technical Research Institute of Sweden, Sweden
- Ola Gustafsson, SP Technical Research Institute of Sweden, Sweden
- Michèle Mondot, CETIAT, France
- Peter Schossig, ISE Fraunhofer, Germany
- Lena Schnaben, ISE Fraunhofer, Germany
- Christoph Reichl, AIT, Austria