Yes, this works in some circumstances. You must have a receptor. You must know someone there who's keen and who trusts you. It takes time to build this up. The company's almost too big. It's difficult to move in any given direction. They're not going to risk their markets by wasting time on something that's not clear.
But the answer is yes. You can certainly work with them, and you can certainly work with them as a supplier. For example, a supplier of nanocrystal cellulose will get validated by Proctor & Gamble, and they will buy it. But they will almost certainly want to make sure they have two suppliers. This is the other facet you always meet up against.