EA, Activision/Blizzard, Ubisoft.
i try and avoid nestle stuff too, but its a massive company with many subsidiaries and products, so its sometimes hard to know.
i avoid apple and their overpriced bullshit.
and companies that try and force "the message" down your throat.
Blizzard. I loved them with Diablo I and II. Now, with Diablo III+, and all of their other games that's "online only", "games as a service", fuck them.
They're not the only companies that do that, and I'm sure Blizzard has offline games currently.
Don't care. Too late. I'll never see Diablo 3+... and I can live with that just fine. I only play games that I KNOW I can play forever, hence the resurgence of Pen and Paper games with my friends.