Too many to list, here are a couple of mine:

Companies that support Russia's war in Ukraine by doing business and paying taxes in Russia. Leroy Merlin is one of them, I used to spend a lot in their store. I use Zrada app on my Android phone to track these companies and avoid them.

Apple - mainly because they fight against customer's right to repair their devices. Also, I prefer devices that are easy service and upgrade and I feel they steered the industry away from that.

This is awesome! Thank you.