Go to: Accounts, then click on “Manage Organizations”
Mouse over the Options icon beside the organization name
Click on “Set to Visible” to enable prospects to search for opportunities in the account from your public search page. Click on “Set to Not Visible” to hide the account from the public search
Note: You can also select multiple accounts, using the checkboxes, and then click the “Change Selected” dropdown list to change the visibility of those organizations.