Make a Space Private
To make your space private and accessible only to specific people:
- Go to your space
 - Click the Manage access button next to the member avatars
 - Find the General Access section
 - Click Edit next to “Company-wide Access”
 - Select No Access to remove company-wide access
 
After this, only explicitly added members will be able to access the space. You can then:
- Add specific people as members with the desired access level
 - Remove members who should no longer have access