Every organisation can have one user with administrator access in OrgHQ, regardless of whether they are on the Starter, Basic, or Pro plan.
If your organisation is on the Pro plan, you can add unlimited users to your OrgHQ account at no additional cost. This allows you to invite team members and assign them roles based on your organisational needs.
For more information about the different user types and their permissions, see What are the different levels of user permissions in OrgHQ?