From another queston. These sources can suggest US manufacturers which include those capable of full custom.

I love furniture—just ask my husband. I had never heard of this brand, so did a bit of googling. The reviews all are very positive—like ads—and, to my mind, suspicious. More googling indicated this company has long been accused of ”astroturfing” (term is new to me), where 5 star reviews are bot-generated. It is very unusual to see so many positive interviews, most touting the longevity of the sofa, with hardly any negative reviews. Even long-term high-dollar furniture manufacturers get negative reviews, even if just for delivery delays, fabric failure, etc. I would be very cautious. I buy from Century and Hancock Moore, both of whom do special orders. i am sure there are other reputable brands who do. Like Dani above, I buy from Lexfurniture in Lexington, Ky, and have done so for the past 12 years or so.

Lex listes 55 US companies they represent. Their experienced consultants can help you learn options and quality levels.