You should define "biggest" in some way mate. Do you just need the largest saw or do you need the size to also carry to other components? AFAIK the Wenger SwissGrip and the rest of the plier-equipped Wenger (New)Ranger series must have the longest saw options available on plier-based tools. They don't excel in the plier head size department though...
I fancy having one of those too. The list keeps getting longer