How does Ugartechea rate with the other high end spanish makers?
If by ‘high end maker’ we mean makers who make only highest price point guns, then the list is very small. Pedro Arrizabalaga would be on that list. There may be a half dozen other small, unknown, makers that would qualify.
OTOH, if we use ‘high end maker’ to indicate a maker who does make high end guns, even if they don’t exclusively make high end guns, then Ugartechea, Grulla, AyA, Garbi, and Arrieta would be on the list. At the high end, all these makers make pretty much the same guns.
That said, people tend to look down a bit on both Ugartechea and AyA, because both makers produce box lock guns in addition to side lock guns. That seems a little short sighted to me, but the attitude exists.