| Name | Institute/Location | Expertise |
| Simon Thomas (Lead) | IRAP, France | Analysis of observations in the solar wind & ionosphere. Quantify risks from worst-case scenarios. |
| Stephanie Yardley (Co-lead) | Northumbria University, UK | Observational analysis & data-driven magnetic field modelling, and magnetic connectivity of SEP source regions. |
| David Brooks | GMU, US/JAXA, Japan | Tracing SEP events back to their source regions by applying and adapting his composition diagnostic technique to Hinode/EIS and SolO datasets. |
| Du Toit Strauss | North-West University, South Africa | Modelling of energetic particles in the heliosphere, with a focus on the interactions with solar wind transients. Contribute to selection of SEP and GLE events. |
| Nicolas Wijsen | KU Leuven, Belgium | To run PARADISE SEP test-particle model this for each of the events analysed in the study. |
| Laura Rodriguez-Garcia | ESAC/ESA, Spain | To analyse spacecraft observations within the inner heliosphere for each of the SEP events. |
| Mathew Owens | University of Reading, UK | Giving historical context to SEP and GLE events from results of recent studies. Model heliospheric magnetic field using HUXt data assimilation scheme. |
| Ilya Usoskin | University of Oulu, Finland | Provide expertise in defining extreme events & help to direct the methodology to apply this to SEP hazards. |
| Monika Szelag | Finnish Meteorological Institute, Finland | Evaluate the influence each SEP event has on the chemistry of Earth’s upper atmosphere using methodology from recent study. |
| François Trompier | IRSN, France | Investigate the radiation doses from SEP events in the atmosphere to evaluate the impacts to aviation using observations and the Sievert PN tool. |
| Karen Aplin | University of Bristol, UK | Investigating the impact of SEP events on atmospheric electricity on Earth and other planets. |
| Jingnan Guo | University of Science and Technology of China, China | Provide expertise on SEP transport and impacts at the planets, providing her methodology utilised in recent studies focussed on Mars |