If you manage multiple organizations you can switch between which you're currently managing under the Organization tab, and using the Organization dropdown to the right.
To create a new organization:
Go the Organization tab
Under the organization dropdown to the right, select 'New Organization' at the bottom of the list
After entering your organization name, you'll be redirected to enter the details of your first season (these details can be changed later).
You can now manage your organization and will have access to all of our features!