A alternative to Dainite, could also be Gumlite referencing the Trickers thread.
I have many customers in Snowy 'Finland', and also wear Tricker's Commando Soled models myself although here in England we don't have too much Snow.
My Finnish customers advise me that although Commando Soles do provide some Grip, in extreme Cold they can sometimes easily 'Clog' the Tread Pattern fairly quickly with snow and ice, rendering them not good at all.
General opinion suggests that the 'Ridgeway Sole' is a better option, as the Tread Pattern is more 'open' and so not as easy to clog.
Surprisingly, my customers also suggest the simple and light tread patterned Vibram Gumlite Sole is quite good in ice and snow, as although this is only a 'Fine' tread pattern, it doesn't clog up.
Veldschoen is always a better option but quite rare. Pleanty of weather proofing products are always a good idea.
Having said all of this, Wellingtons are probably the best option in lots of snow, they just don't look as good.;-)