I've got your answer right here. Either contact Robb Rudluff over at www.Phluid.com or Contact the guys over at www.designmyidea.com
Robb over at Phluid Inc. is a good friend of mine. I used to own half of the company with him back in 2005. Now I've moved on to new industries. Robb over at Phluid Inc. is building a prototype for me right now. I'm spending almost $200K and I have no patents on the device yet. The guys over at designmyidea will be finishing up my prototype.
I have many aspects of engineering going into my device. Industrial, Electrical, and Mechanical Engineering designs are all going into it. I trust Robb and his staff entirely. Plus, being a former partner in the design company, let me answer your question by saying the following: These design guys and even most design engineers don't care about taking or stealing your idea. They are there to help you succeed. Engineers are not wired like us entreprenuers. They are only thinking technical aspects and smaller number signs. You and I are thinking millions and billions. They don't have that drive to make those kinds of numbers.
So feel rest assured that your product ideas will be safe with them.
In fact, you can send me a Private Message to my personal email and I will hook you up with Robb at Phluid Inc. Design.
My email is: dan@roastedstone.com
Robb's Email is: robb.rudluff@phluid.com
Robb's Phone is: 714-264-3559
Hope this Helps.
DAN