i) Through Companies Tab:
a) Click on the Companies tab and then scroll it down to other.
b) Click on Your Lists and select your uploaded company name from the desired Company/Suppression list.
c) After selection, click on search and then you will be able to see the related search results.
ii) Through Lists Tab:
Click on the Lists tab and select the desired List to access it further.
Now with the updated UI we can include/exclude lists display results by check-marking the list type.