They co-ordinate, advise and support regional and local groups, organisations and authorities, for instance by stimulating and developing a supporting environmental education 'network'. They connect developments and activities from a national scale to regional levels and vice versa. In most provinces there are professional workers for special projects, such as for formal education or special regions or reserves. Sometimes the IVN regional offices join up with German or Belgian fellow organisations. IVN regional offices specialise in project management and often function as the centre hub for regional environmental projects.
Most regional offices operate a limited documentation centre.
Overall the IVN employs some 110 employees both full time and part time. IVN Youth top IVN Youth are a group of some 200 young IVN-volunteers, whose Summer holiday camps are their most popular activity. These holiday camps are a unique and good fun combination of preservation activities, more cultural themes and programmes and a generally relaxed and friendly atmosphere. The maintenance work is vital to the preservation of the areas where IVN Youth work. During the year IVN-Youth organise several other activities.