Sub zero is US made (but a pretty high price point)- I dont recall if Wolf and Cove ( the Sub Zero lines of stoves/ovens sand dishwashers, respectively) were.
We have just completed purchasing our kitchen appliances for our house build. We looked
At GE Monogram, Sub Zero/Wolf/Cove, Thermador, Bosch, Meile and a few others- finally settled on SKS ( LGs mid to upper end line-sort of like GEs Monogram). SKS had certain features in their built in fridge and the induction cooktop that were pretty unique as well as a very nice warranty and support package.
The LG compressor issue from a few years back gave me some concern but most everything I could find indicated that new LG compressors have resolved the earlier design weaknesses.
If you want a real shock to your system, price out a kitchen in one of the mid upper price points- you’re looking at 20k plus for a 4 piece kitchen. I just about had a coronary when we got a bid for a 60” Sub Zero, Wolf stove/oven and Cove dishwasher.