When a contest is protected with NDA, it means designers will need to sign a Non Disclosure Agreement (NDA) before they can view your design brief.
If you’re running a Private contest and you’d like to see a copy of the NDA each designer signed, as well as who signed, simply:
Log into your Designhill account, click on the 'Dashboard' button in the header. Then click on ‘My contests’ tab and select the contest you’re interested in.
You’ll see a 'NDA' tab in the middle of the screen, click on it to open the list of all the NDAs which have been signed. You can refer to the below image for more clarity.