To escape from the big corporations of the USA, as a user we have two options, either to use OpenSource alternatives, although not all of them they are free of influences from Google, MS, etc., or using products and services of European companies, which in general are rather more aimed at protect privacy (GDPR), although only a few are known to most. This is why I thought of using this thread to complete a list of the better European alternatives, starting with the link I put opening this thread.
Tutanota is German and one of the most private Mail, also from Germany the search engines MetaGer and Ecosia, from Spain security software Panda Security, the first one which used a cloud based AV, KDE was founded in Germany. Browser: the French UR and Vivaldi from Oslo, Norway.
Tutanota is now Tuta
https://tuta.com/blog/tutanota-is-now-tuta
I know, I use it, also Proton Mail, since years.