Ask HN: How to get pitched by startups

So I work for a pretty awesome consumer products company, and we like to try new things that aren't proven by the big guys yet. Any tips on a place to get pitched by startups?

I track HN/TC/etc daily, but I have this feeling that theres probably a lot of startups that could help our business, and likewise we could help validate/grow. I might not be thinking about what they're offering, or frankly understand the proposition.

Any ideas?