Here is a list of catteries around the world where you can find at least a couple of Siberians that belongs to group 1,2 or 3. This list will be made by country. Please note that even if there are good couples on these catteries, the genealogy must be checked anyway considering some among these unfortunately do have cats group 4.
Russia
Friendly Russian catteries but who are not part of the project:
Taurus
Sladkoe Pyatnyshko
Angara
France
Friendly French catteries but who are not part of the project:
Iaromira
Fereynka
Spain
Norway
Italy
Poland
Siber Felis
Finland
Friendly cattery in Finland
Aq Bars.
Switzerland
Friendly cattery in Bulgary
Sibirella
Australia
Brazil
Colombia
Hungary
Meda garden
England
Qrios
Sweden
China
USA
Rockaran Siberians