Hey @Steve Procter, with all respect, you’re asking everyone to give up their hard-won VERY valuable contacts for not only zero return, but also maximum risk (you and the founder believe “you have the next big thing” for those groups, but that isn't the first time they've heard it. As you know, these are hugely valuable relationships.
If you’ve never seen it, watch a couple of episodes of Shark Tank when Kevin is on.
This is a place where we help one another grow, but “give me the fruits of your labor for a thank you” is going to get you nowhere.
I will, however, point you in the direction of formulating these relationships yourself. Find decision-makers on LinkedIn, learn everything you can about them on social media, and then send out personalized emails from a non-generic domain that isn't spammy (e.g., the website domain for the product that isn't used in any email marketing campaign anywhere).
If you need help formulating messages or want clarity, I’m happy to talk more in DM’s. A friend of mine put together a course for under a hundred bucks, that I personally found useful, that I can refer you to as well.