This list is far from complete. Please send info to firstname.lastname@example.org if you would like national networks to be added here.
Dutch Astrochemistry Network (link)
Consortium of Dutch astronomy and chemistry groups, centered along four research topics: gas phase dynamics, solid state, PAHs and chirality in space.
PCMI ( link)
French national program on the physic-
PNP ( link)
French national program of planetary sciences