| Name | Institute/Location | Expertise |
| Guillaume Thomas (Lead) | ULL/IAC, Spain | Machine learning, homogenization of large spectroscopic catalogues. |
| Aleksandra Avdeeva |
INAF-OAA, Italy |
Multi-surveys homogeneization and callibration. Member of the SOS team. |
| Giuseppina Battaglia | IAC, Spain |
Dwarf galaxies; stellar spectroscopy. Deputy science team lead of WEAVE Galactic Archaeology surveys, co-lead of WEAVE GA-LR highlat.
|
| Sébastien Fabbro | NRC-HAA, Canada |
Machine learning, photometric and spectroscopic cross-survey calibration. |
| Isaure Gonzalez Rivera | OCA, France | PhD student, expert in very metal-poor stars, comparison of photometric/spectroscopic metallicities. |
| Felipe Gran | OCA, France | Optical and IR spectroscopy, cross-surveys calibration, star clusters |
| Guillaume Guglion | ZAH, LSW, Germany | Stellar spectroscopy, machine learning, cross-survey calibration, chemo-dynamical evolution of the Milky Way. Long-term involvement in 4MOST, RAVE, Gaia-ESO. |
| Vanessa Hill | OCA, France | Stellar spectroscopy, chemical abundances. Leader of WEAVE Galactic Archaeology. |
| Minjih Kim | UVic, Canada |
Stellar spectroscopy of metal-poor stars. |
| Georges Kordopatis | OCA, France |
Spectroscopic parameter, stellar age, machine learning and label transfer, Milky Way chemistry and dynamics. Co-lead of the spectroscopic parameter pipeline of 4MOST. |
| Sara Lucatello |
INAF OAPd, Italy |
Stellar spectroscopy, globular clusters, cross-surveys calibration. |
| Pedro Alonso Palicio |
IAC, Spain |
Spectroscopy expert. Measurement, validation and calibration expert for Gaia RVS. |
| Elena Pancino |
INAF OAA-ASDC, Italy |
Stellar structure, stellar evolution, star clusters, multi-domain astronomy. PI of the Survey-Of-Survey (SOS) team. |
| Alessio Turchi | INAF-OAA, Italy | Machine learning expert. Member of the SOS team. |
| Marica Valentini | AIP, Germany | Stellar spectroscopic analysis, red giants, cross-survey calibration. Leader of the 4MOST Working Group of pipeline validation and survey science verification. |
| Kim Venn | UVic, Canada | Stellar spectroscopy; hot, cool, metal-poor, and chemically peculiar stars. Stellar populations, dwarf galaxies. |