- Jean Manca (X-LAB, Hasselt University, Belgium). Characterziation of electrical properties.
- Herre van der Zant (TU Delft, The Netherlands)
- Jack Middelburg, Lubos Polerecky (Utrecht University, The Netherlands). Advanced imaging at the NanoSims facility – the Dutch national facility for high-resolution in situ isotope and element analysis.
- Roman Koning (LUMC, Leiden, The Netherlands). Cryo-TEM imaging at NECEN – the Dutch national facility for advanced cryo-transmission electron microscopy.
- Lars Peter Nielsen and Nils Risgaard-Petersen (Department of Bioscience – Center for Geomicrobiology, University of Aarhus, Denmark).
- Perran Cook (Monash University, Melbourne, Australia) Cooperation on the natural distribution and geochemical impact of electrogenic sulphur oxidation in the Yarra River Estuary (Australia)