| HarwellXPS (Cardiff Hub) | Cardiff University | United Kingdom | Cardiff |
| HarwellXPS (Harwell Hub) | HarwellXPS | United Kingdom | Didcot |
| Nanoscale and Microscale Research Centre | University of Nottingham | United Kingdom | Nottingham |
| XPS Platform | Umeå University | Sweden | Umeå |
| Catalysis and Surface Chemistry | Leiden Institute of Chemistry | Netherlands | Leiden |
| Surface Analytics | Max Planck Institute for Chemical Energy Conversion | Germany | Mülheim an der Ruhr |
| Bioresponsive Materials | Leibniz-Institut für Analytische Wissenschaften - ISAS - e.V. | Germany | Dortmund |
| Innovative Station for In Situ Spectroscopy | Fritz Haber Institute | Germany | Berlin |
| Institute of Functional Interfaces | Kahrlsruhe Institute of Technology | Germany | Eggenstein-Leopoldshafen |
| BelChem | Helmholtz Zentrum Berlin | Germany | Berlin |
