Admins are Wrike users with extended permissions. Account owners and admins with the right to grant/revoke admin rights can grant admin permissions to other users and revoke them.
Click your profile image in the upper right-hand corner of your workspace.
Under Account Management select Users in the left-hand menu.
Click the name or profile image of the user you'd like to make an admin.
Click Edit settings (you may need to scroll down to see it).
Click the drop-down under License Type and select Administrator.
Click Save changes.
You will be prompted to enter your password and then your changes will go into effect immediately. An email is sent to the newly created admin, the account owner, and all admins with the right to grant/revoke admin rights.