Proton is built in Switzerland under some of the strongest privacy laws in the world. Your email and files are end-to-end encrypted, there's no advertising and no tracking - which makes it a strong fit for legal, health, finance and anyone who simply doesn't want their business data mined.
Moving to Proton doesn't have to be daunting. We handle the migration, set up Proton Mail on your own domain, roll out Proton VPN, Drive and Pass to your team, and stay on hand for support - all remotely.