The British Bankers Association, the Building Societies Association and National Savings and Investments (NS&I), have launched a joint venture, My Lost Account to replace separate account tracing tools. Use this to find lost current accounts, savings accounts or premium bonds.
With details of over 200,000 pensions schemes The Pensions Service provides a tracing service which helps you find an up-to-date contact address for the scheme you're looking for.
For help in tracing unit trusts you can contact the Investment Management Association, either by phone or email, and they will investigate your claim.
The Association of Investment Companies will take you through the process of searching for lost investment trusts if you call them up on 0207 282 5555.
If you've lost a life policy The Unclaimed Assets Register can be used to trace it by completing the online search form or printing it out and sending it off.