The EuGH judgement is already titled with “Facebook-Judgement”. But it does not seem to be a problem of Facebook. Where it comes to troubles are the many cloud services around. Also german and european companies and especially startups are using them. And here it will hurt.
Not only Amazon, Google and Microsoft, also the many SaaS providers like Dropbox, Slack, Asana etc. are coming to mind. What will companies do now, when they are using services like Mailchimp for sending out their newsletters? What will happen to european companies, who are massive sending customer data to U.S. based services to analyze data etc.?
However, todays EuGH judgement will industry wide create big waves.