If you have SignalHire account owner permission, you can send invites to people who you want to add to your account team.
To do so, go to My Team section and click on the Invites tab. Afterwards, click on the Add new user button located in the upper right corner. In the opened window, fill up all fields (type in first&last name, email address and choose permission) and click on the Invite button. As a result, a person will receive an invitation email to join your account team