The Coutts Group is the international private banking arm of The Royal Bank of Scotland Group, and manages assets of more than £34 billion for some 90,000 clients worldwide.
http://www.coutts.com/

EFG Bank Group's

An international private banking group with offices in London, throughout Europe and Asia.

http://www.efggroup.com/

HSBC Private Bank

Tailor made private banking and wealth management services from one of the world's largest banks.

http://www.hsbcprivatebank.com/hsbc

Insinger de Beaufort

Financial products are tailored to the growing class of economically enfranchised individuals and a wide network of professionals and institutions around the world.

http://www.insinger.com/

Investec Private Bank

With Investec Private Bank you can enjoy a full-fledged international private banking and wealth management service.

http://www.investecprivatebank.co.uk/

A private bank is a bank which offers private banking services. They specialize in clients with large accounts (the minimum balance varies) who want their money invested and managed for the long term.

The first private banks were created in Geneva in the 1800s as partnerships, and some are still in the hands of the original families. In Switzerland, such private banks are called private bankers (a protected term) to distinguish them from the other private banks who are usually share corporations. In practice most people would refer to them as private banks.

Switzerland is the number one banking destination for international clients for many reasons.

Pursues the objectives of "protecting creditors", "protecting investors", "guaranteeing the functionality of securities markets" and "maintenance of the function" in Switzerland. View their site for a list of authorized  institutions and investment funds.

http://www.ebk.admin.ch/