| name | institute | WG | metals | techniques | resources | expt/comp |
| Kasper Kepp | Techn. Univ. Denmark | WG 2, WG 3 | Mn, Fe, Co, Ni, Cu, Zn | DFT, QM/MM, MD, bioinformatics, phylogenetics | CPUs, coffee | Comp. |
| Vladimir Kokozay | Taras Shevchenko National Univ. of Kyiv | WG 4 | V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Cd, Pb | Coordination Chemistry, Inorganic synthesis, Spectroscopic methods | Synthetic Lab, UV-Vis, IR, NMR, EPR (X-band), Fluores./phosphores. Spec., powder X-ray diffractometer | Exp. |
| Leeor Kronik | Univ. Weizmann Institute of Science | WG 3 | Cu, Fe, Ru, Mn, Zn, Ni, Sc, Ti, V, Co, Cr | DFT, Many-body Perturbation Theory | Supercomp. | Comp. |
| Panayotis Kyritsis | Univ. of Athens | WG 2, WG 4 | Cu, Fe, Mn, Ni, Co | Inorganic Synthesis, NMR, EPR, Elect. | NMR, Potentiostats, Glove Box, Vacuum Lines | Exp. |
