Any individual 30 years old or younger with an interest in activism, politics, and who shares the principles and objectives of the organization can become a member.

Mladí zelení are a member organization of the Federation of Young European Greens[4] and Cooperation and Development Network Eastern Europe.

Currently, Mladí zelení have local organizations in Ostrava, Tábor, Plzeň, Prague and Olomouc.

On a spontaneous assembly which took place on the 20th of June 2020 some members collectively left and founded a new political movement Budoucnost (meaning 'future').

This new influx spurred on the calling of a special assembly at which a new Executive committee was elected – led by co-spokespersons Martin Lekeš and Sabina Snížková.