Depending on the subscription you have, you may have the ability to PREFER or BLOCK a company when viewing your search results. These features can be quite handy.
Marking a company as preferred indicates your interest in working with that company again in the future, whereas blocking a company will prevent them from showing up on your future search results.
With this feature you can filter your search results to just see the companies that you have marked as preferred, weeding out all the other results and giving you a great place to start.
If you are curious about what companies that would have appeared on your results had they not been previously blocked, use the same filter to change your view.
At any time you wish to view all the companies that you've either preferred or blocked, click the MANAGE PREFERRED AND BLOCKED LISTS option.