Except Amazon, they are not accepting cryptocurrency and they are not making use of the Blockchain. I don't think they are going to be involved in it anytime soon, though there are rumors about them accepting Fb Libra. It's just a rumor and no one has proof to whether it is true or not. Once they start to accept it they are going to mention it to their customers and let them know that they are accepting cryptocurrency. Other ones you have mentioned have jumped on it already. Microsoft was the first to making use of the Blockchain technology on several of their sites and even launched a project as well.