All the major meat producers. And fast food chains.
There's been so much publicized in recent years about their treatment of animals, their lobbying efforts, how they treat their employees, how they're ruining the environment, how they fix prices and force farmers to "get on board" or else. It's really bad but we don't care so much because it's hidden beyond our periphery.
I know no one wants to be told to reduce or complicate doing the things that bring you joy, but reducing your meat consumption and shopping at local producers is something we could all take small steps every year towards doing.