Funnily enough it is European companies and not American ones that are leading the charge on privacy. ProtonMail / Tutanota etc for example on the email front. I've heard of a company called Snacka! as well that seems to be using some gaming tech in streaming for end-to-end encrypted communication that doesn't suffer performance as much as services like jitsi. If more companies follow privacy principles like this in the way they build their products that's only part of the battle, though - it's also important to prevent such things from a legislative perspective.