No, not Steem or Ethereum or anything like that. All major companies will adopt a standard blockchain (IBM Hyperledger maybe? there's room for 2 or 3 different ones) and use private tokens. They won't adopt something they can't control.
However with Steemit (IF it becomes successful enough just like with Youtube, Twitter or whatever) they will have to establish a presence sooner or later and that's what I was trying to get across. If that was the case, Nike, Apple or Adidas as I playfully did with the logo will be HUGE whales the size of continents inside Steemit platform.