If you have hidden leads, you can easily manage them.
Here's what to do:
STEP 1: Log in to Leadfeeder and click your name on the right upper corner and selecting Integrations for... from the menu.
STEP 2: Select Accoint on the upper right corner and Hidden companies.
STEP 3: Click Unhide company for the companies you want to unhide.
NOTE: Hiding a company will delete all earlier visit details and historical data regarding that company. When a company is unhidden, the earlier visit details will not be available.