If you don't want to share who your exhibitors are before the show or want a company to be displayed on the plan only after you approve the reservation, you can hide some of the exhibitors on the floor plan. To do that, go to Settings - Floor plan and scroll down to the What companies to show section.
There are four options at the moment.
Hide all companies
All exhibitors' profiles will be hidden on the floor plan. Reserved booths will be displayed as reserved without exhibitors' names on them. The organizer will still be able to see the list of all the companies in Exhibitors 
.
Hide non-featured exhibitors in booths
You can choose to show only a Featured exhibitor within the booth. It is especially useful when the booth is shared among many exhibitors. You can still see the others in the exhibitor list on the left if you click on the booth.
Hide companies that are "On Hold"
The companies with their booths "On Hold" will not be displayed in the exhibitor list on the left side of the front view until you approve their reservation.
Hide companies that have no booth except
This option might be useful when you want to preserve company data but not show them publicly. The exceptions can still be found in the exhibitor list on the left.
See also: How to assign exhibitors to booths.
Frequently asked questions
Is it possible to hide the booth number and the company's name on the floor plan?
You can hide the booth number and the company's name by clicking on a specific booth in the Designer 
and toggling the Hide labels button.
Is it possible to hide the booth number and only display the exhibitor's name?
It is possible to hide the booth number and display the exhibitor's name simultaneously. Go to Settings - Floor plan. Scroll down to the "What booth info to show" section and check the box next to Hide booth number in booths with exhibitor.
Why can't my exhibitors see the previews of their profiles?
Exhibitors can't preview their profiles when you hide all companies in the front view of your floor plan.
When I clone my event, how can I hide the exhibitors from the previous event and only display the ones from the current year?
Check the box Hide companies that have no booths except. Here you can also include exceptions that you'd like to be displayed.
How can I hide an exhibitor's profile without deleting it from the system?
Check the box Hide companies that have no booths except. Here you can also include exceptions that you'd like to be displayed.
How can I hide multiple exhibitors within the booth and only leave one?
First, assign a Featured Listing sponsorship to an exhibitor that you'd like to be displayed in the booth. Then, check the box Hide non-featured exhibitors in booths.