These are the banks in Liechtenstein you can connect to Vault. They connect through Enable Banking; see Connecting a European bank for how that works.
The bank search in the app is always the most up-to-date list. Banks are listed under their official names, which can differ from the brand you know, so try the name of its group or its town too. Still not there? See If your bank is not in the list.
bunq
DiPocket
Finductive
Genome
N26
PayPal
Revolut
Wise