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Yeah, I mean, I have a Borah cuben bivvy and that came from the US too (via Australia for some reason, the carbon footprint egads!). I was going to buy another one from them but he slowed down production and stuff happened and so I just got a RAB instead. Not as light or compact but does the job. I just hate having to buy stuff from the US, thinking of the shipping, dealing with customs bullshit, warranty concerns, etc.
So, if I could find the stuff locally I'd pay a bit more for that.
if by well you mean top-end, then it would be cuben fiber (DCF) tents as that's the highest performance fabric available these days
locus gear in japan are wizards with it, otherwise it's US companies; tarptent, HMG, SMD, and a couple of others
there is trekkertent in the UK but they never have a solid run of good reviews