If you haven’t nominated the brand yet, you can do so in this topic:
/forums/topic/nominate-a-dog-food-brand-for-editors-choice/
Also, if you haven’t read through the FAQ’s, it might help to answer your question.
/frequently-asked-questions/about-editors-choice/
There are several guidelines for choosing an Editor’s Choice brand. It also takes quite a bit of time to do the research on each company. Also, if a company chooses to not answer some of the questions required to be an Editor’s Choice, then that company probably won’t be included on the list.