If you are invited to several organizations, it is possible to edit which ones should be visible and mark organizations as favourites.
Click on "My Organizations" and then "Manage organizations".
In the overview view of your account's board room, mark which organizations you want visible and as favourites. It is also possible to automatically hide organizations with inactive subscriptions by checking the option.
All changes are saved and updated automatically. Organizations marked as favourites will appear at the top of the list.