We talk a lot here at Nomad Capitalist about easy and fast ways to open an offshore bank account in order to gain diversification and security.
However, if you are lucky enough to be a high-net-worth individual (HNWI), easy and fast may not be one of your priorities - you want something high-class and special.
You could always go to one of the private banks in the world's current financial hubs, such as Singapore and Hong Kong and put all your millions there, but our advice is to diversify a bit.
A winning formula could be: choose a priority bank in Singapore, for example, which would be your "anchor" and then open a series of other priority bank accounts in different countries and banks.
This is especially a good idea if you are investing in real estate because in this way you gain access to some offers available only to people banking in the exact bank or country.