For those who believe they might be entitled to assets deposited at a bank in Switzerland, there are different options in order to search for an account. 

1. Either you can contact the bank directly, if you are aware to be entitled to assets at a bank
2. If the you don’t know in which bank you might have assets, the Swiss Banking Ombudsman prevails the possibility to conduct a search for assets
3. If you believe that you assets are published on a publication list, there is the possibility to claim it directly on the Internet. 

For more informations, have a look at the Swiss Banking Ombudsman website :

http://www.bankingombudsman.ch/en/dormant-assets/