There you go. Talk to those people, and have them set up some introductions.
I have also spoken to a few people that work at various agencies and they have confirmed that this a problem. But those leads haven't worked out.
But even if those leads don't "work out" in terms of sales, they should definitely be a source of information and contacts in terms of setting up the next prospect. The people who liked your solution but for whatever reason choose not to buy it can be a very valuable resource.