I would like to put some money in the bank . It will be a long time saving ( 20 years ) . Because it's a long time I'm looking for some bank that is secure for longer time .

I don't know witch criteria to take . Bank with biggest assets or revenue ?

Is there any list of world banks by assets and/or revenue ?

Wow, 20 years, you ought to put it in an IRA or Roth IRA then. Ask an financial advisor about it.

I will tall you the whole story . I have a plan to be cryonicly preserved after my death . Or in other words to be freezed . So I need some bank that will be still in business few decades ( centuries ) from now .

I... don't know how to even answer this.

1. Cryonically being frozen does NOT guarantee you will survive it.. . at all.

2. Let's assume that they actually devise a way to make it work... they can thaw you and bring you back to life.. . that technology is a few centuries away, in which case, no bank will ever guarantee your financial situation for hundreds of years.

I guess... you could use the money to start a company, hire people to run that company, and just let the company run while you're in your state of being frozen...

If I open a company after my death someone will inhered it and I don't want that . With bankbook its different . My account will be still active after my death and it will wait for me .

Actually, your account will be seized by your inheritance or the government will take it.

I asked in my bank in croatia and I got the answer that in the case that no one of my relatives apply for my saving after my death my account will run forever .

I have an agreement with my relatives that they won't do that . But lets go back to primal question . List of biggest banks ?