Existing and former members

If you have ever been an ISI member or a member of one of ISI Associations in the past and you would like to add a membership/s or have your membership reinstated, you don't have to register. You can log in to the webshop if you still know your username and password. If you don't know your username and password please send an email to isimembership@cbs.nl

New members

To become a member (never before a member of ISI or of one of ISI Associations) you first have to register above. You will receive an email with a log in code to the webshop. Log in to the webshop and choose your membership/s and proceed to pay. When paid, wait to be redirected back to the shop and you will receive your receipt including your membership number. Should you require any assistance, please send an email to isimembership@cbs.nl