That's hard to do without researching various umbrella corporations, sponsorships, partnerships, and investment deals.
(edit) I meant this part: minimize your purchases with mega corporations. buy more from small businesses.
(edit) I meant this part: minimize your purchases with mega corporations. buy more from small businesses.
Edit: Not really hard to do that part either. Just do your grocery shopping at a locally owned market or farmers market instead of a nationwide chain. No need to avoid the national chains completely. Just move in that direction.