You can add your own comments on the companies listed on the platform for your reference. You can choose the visibility options for you and other users in your account.
You can follow these simple steps to add notes while reviewing a company:
In the Company Detail page, navigate right to the "My Notes" tab.
In the "My Notes" section, add your note to the company and save it.
You can track all such notes added by you under the page "My Tracxn > My Notes"