An NDA is great tool to protect your concept (Invention) from companies when you need to make a demonstration of it.
While many companies (Most likely Big) rather you sign their NDA's to reduce legal costs, others gladly accept to work with yours without a problem.
Note: We are product developers willing to share what we've learned in our journey. The provided NDA (Printable PDF) is an informational piece created by us along with instructions on how to fill the form out and a brief description on how to use it with companies willing to evaluate your concepts.
Note that, the provided agreement is for informational purposes only and do not constitute legal advice. We are not a law firm and this is not to be considered legal advice.
Feel free to contact us if you have any questions.