Open the Companies page from the sidebar and click through to your company.
Switch to the Team tab.
Click Add Company Admin and enter the person's email address.
Click Add Company Admin to confirm. The person is added to the admins list.
There is a single role — Company Admin — and it grants full access to the company's forms, settings, and submissions. There are no granular permissions, so only add admins you would trust with every part of the dashboard.
Open the three-dot menu next to any admin in the Team tab and pick Remove admin. Their access ends immediately.