You would need a confidentiality agreement - also known as a non-disclosure agreement. Check GOOGLE for samples. Unfortunately - many companies will NOT sigh such an agreement - so check first before you disclose anything. Better - file a provisional patent application - teach how to make and use your invention on paper. That way you will be "patent pending" when you go to see the company. Good Luck!
Answered on May 26th, 2015 at 7:14 AM