Rather than trying to find everyone who is producing GMO and boycotting them, why not look for stuff with non-gmo verification instead.
This is the sure way to find products that are GMO free.
I am starting a GMO-Free board to feature some delicious GMO Free products on pinterest
For a full list check out the Non-GMO Project Website for a full list.
If we stop buying GMO and support non-GMO eventually they will stop making it.
If you have a non-GMO product you would like featured please email me at firstname.lastname@example.org