Zootierliste is - as far as I know - accurate as far as these three species go. As such, the current state of affairs is as follows:
Martes zibellina - the only 4 European collections holding this species are in Russia; there are also 4 holdings in the Asian portion of Russia listed on ZTL.
Mustela eversmanii - the only two collections holding this species according to ZTL are in the Asian portion of Russia; as such this species is now absent from European collections.
Mustela sibirica - this species is held in a single Czech collection, a single Polish collection and two Russian collections, one of which is in "European" Russia. I was fortunate enough to see the Czech individual earlier this year, as it happens.