As the Organization owner, you have the ability to manage the member list for your Organization. This is done from the organization info page, which you can access here.
Member Access Levels
A member in your organization can create and facilitate games under your organization's license. They can also choose to remove themselves from your organization.
An admin in your organization can create and facilitate games under your organization's license and choose to remove themselves from your organization. They can also view and edit your "Organization Info" and they can invite, manage and remove other members in the organization.
You can change a member's access level at anytime by selecting the drop down menu next to their email address.
You can add members using the blue "Invite Members" button. Step by step instructions for this are available here.
If you need to remove a member from your organization, select the gear icon next to their email address to remove them. The member will be notified via email that they have been removed from the organization.