Suppliers of all sizes, but especially new emerging companies, need the perfect presentation. If they can't get you to understand what problem they can help you with and why they are better than the other guys, you are probably not going to invest in the solution. If you and your peers don't invest in the solution, then they won't make it past their initial funding.
Fortunately it is the season of giving and I am going to give suppliers some of the basic ingredients to the perfect presentation. First, every vendor's opening slide should have three bullets: The exact problem the solve, why they are different, and how much the product costs. Optionally, the slide could end with a "Should we continue? Yes or No?"
Until a vendor convinces a buyer that they have a product that can solve a problem, buyers won't care about things like where your company is, how impressive a building it is in, who founded it or who is funding it. With that first slide we all would know if there was mutual interest. If, as a supplier, your response is that you can't get the basics of the problem you are trying to solve accomplished in one slide then I believe you are going to have a bumpy road ahead. If the potential user of the product answers "No, I don't think that is what we need," then find out why they think so, see if you missed something but be prepared to mutually move on. Sometimes there just isn't a good fit or the timing is bad. Move on, no sense banging your head against the wall.
Once you have interest, especially if you are a smaller company, your buyer will care who your founders are and their backgrounds. Again, this should be done in one slide. They may want to know who is funding you. I tend to find that buyers put less importance on this than suppliers do. Venture firms make a mistake more often than they get it right. For every Data Domain, or EqualLogic there are ten or more misses. Next, if you feel it is really needed, a brief (one slide) summary of the market conditions.