I know a supplier of fruit purees and pulps, but they are here in Brisbane, Australia, not very helpful to you and too be honest I'm not even sure if that's exactly what you are looking for.
I can't believe they can be that hard to find myself. Have you tried health food suppliers, even health food retailers, they may well be able to supply some leads.
Try juice bars and the like, chances are that if they don't use the same products as you are looking for, they will have had a rep call on them trying to sell something similar, so that's those are the areas that I would focus on.
The supplier here actually makes gourmet ice cream, and they provide the fruit pulps and the like as a side product range, along with health food supplements, so you can find this type of product in some unusual places.