All scientific responsibilities related to the mission are undertaken by the PI, Jean-Louis Piçon (CNRS/LPC2E), who chairs the Experimenters Board.
He is seconded by Elisabeth Blanc (CEA/DASE) in her role as Scientific Co-PI. This committee brings together the MIs for each instrument of which the TARANIS payload is composed.

The LPC2E supervises the development of the scientific payload and part of the TARANIS Scientific Mission Centre.

Other French scientific laboratories are collaborating in the TARANIS mission:
the CEA with CNES, responsible for developing the MCP instrument, the IRAP (ex-CESR), responsible for developing the IDEE and XGRE instruments, the LATMOS, responsible for developing the IME-BF instrument, the LPC2E, responsible for developing IME-HF and IMM instruments and the MEXIC electronic boxes, as well as APC (Paris), responsible for XGRE sensors.

Hokkaido University (Japan) will supply the photometers.
Electronic modules will be supplied by Stanford University (USA), the Institute of Atmospheric Physics (IAP) and Charles University (Czech Republic) and Varsow Space Research Center (Poland).

Scientists from different nations (USA, Japan, Czech Republic, Poland, Denmark, Turkey, China) are associated to the project as Co-Investigators for the instruments.