The company that makes the Beerzym Multi is Erbslöh
. From their site you can find a supplier in North America, IDL Consulting
out of British Columbia. They don't have any prices on the site but they have contact information. You could check and see the prices and shipping costs.
My experience with this enzyme has been great. I'm still trying to tune in a good process for how to get consistant results from the grains with higher gelitinization points or harder to crack/mill (Purple Rice, Amaranth) but with roasted millet & buckwheat I got great results (even checked the conversion with iodine).