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Welcome to Isotammi Service

Learn about Isotammi

Suomen sukututkimusseura ry

Isotammi Service is a service for co-operatively collected and validated genealogical data.

For more info see also documents -

Look at the demo data

In this demo we have a genealogical tree which follows our quality rules and it contains the relatives of the Finnish national compositor Jean Sibelius.

Log in

If you have already registered, you can log in and refine the structure of your own data. As a member of Genealogical Society of Finland you will get more services.


Currently no registration is available.