I created this list in a short time:
Just “Google” bulk foods or food storage and you may come up with others.
Either my friends or I have purchased from all except Frontier Co-op, though some of our local stores carry their brands. I love Vita Cost! They ship promptly and save me a lot on supplements. They carry "natural" foods too.
Here's what my display looked like. I'm very grateful for my computer!
I also found a list of organizations in Eastern Iowa.
Iowa Valley Food Co-op http://iowavalleyfood.com/about/
New Pioneer Food Co-op http://newpi.coop.dnnmax.com/
Pick your own Farms http://www.pickyourown.org/IAeastcentral.php
Sam’s Club samsclub.com
Stringtown Grocery,Kalona, Iowa
Northern Iowa Farms www.iowafreshfood.com
Here is Ginger sitting in the display.