Non-disclosure agreements (NDAs) can be required of every contract or added on a case by case basis. They are automatically part of the independent contractor agreement if you are receiving Upwork Compliance Services.
If you’re not enrolled in Upwork Compliance Services, you’ll also have the option to add a customized NDA each time you send a contract offer.
To add the same NDA to every contract, have a company administrator contact your account rep. This is pre-configured during your company’s Enterprise account setup and changes must be made by an account admin.