[Calpernia]

NOT that it helps; but this is the PDF I found that says Diamond sells to private labels:
http://www.janikltd.com/article1104.pdf

Diamond also has a pretty big distribution channel to farm and feed stores too.

I can't get through on the phone and am continuing to do searches.

[apackof2]

I feed my Maddie Sensible Choice however
if you find out more information please ping me thanks