Verdict
Two answers, aimed at slightly different threat models.
Servury is built for the customer whose threat model puts the email and the unencrypted disk at the top of the list. Their credential-only signup and packaged LUKS2 close both of those holes at the front door, and the BYOIP / RPKI plumbing on top is the kind of detail very few competitors ship. For that customer, Servury is the appropriate choice today.
NordBastion answers a different question — where does the metal sit and under what law? Four Nordic constitutional press-freedom regimes on every server, twelve cryptocurrencies, more memory and disk per dollar at most tiers, and a fully-automated path to dedicated bare-metal that Servury's DDS workstation tier does not match.
Pick Servury if email-less signup and packaged disk encryption are your hard requirements. Pick NordBastion if Nordic constitutional jurisdiction and bare-metal scale are.