Timgalema: any manufacturer that survives for decades on the Italian mountaineering footwear market is good - very good. Asolo is among them. The sole is Vibram, although without their yellow logo. Why? Vibram made the rubber and sole profile, but Asolo designed it themselves. Similarly with La Sportiva, which in the last decade also develops its own profiles, but they are made by Vibram. No Vibram logo here either.
As for the general quality of mountaineering footwear, it's a very delicate topic, because everyone will favor their favorite brand. Objectively, they are all more or less good, otherwise they wouldn't have so many buyers. The fact is that even in the most renowned brands, "flaws" appear due to mass production, poor control either in Asian countries or in the Balkans. However, this more or less applies exclusively to trekking/hiking/approach footwear, because those for serious mountaineering tours are still mostly made in home countries, so quality is unquestionable.
Fitwell is indeed a minor manufacturer, but they make undoubtedly excellent boots, similar to Kayland. However, they differ from the latter, as well as from Asolo, mainly in last width, as it is somewhat wider, "German", similar to Hanwag and Meindl. Scarpa also makes boots with a slightly narrower last, same as German Lowa.
In short, there's quite a lot on offer here, I could list more brand names, you need to find the right last, regardless of brand name, because they are all more or less of equal quality.