Manufacturers with Excellent customer service


What’s been your experience? Who are the superstars in making things right for the customer, without fuss, and with quick turnaround? 
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Not a manufacturer, but Kevin Deal at Upscale Audio. I also second Vlad Bazelkov at Audio Mirror. And add Kara Chaffe of Dehavilland. Also Egglestonworks (speakers). I have dealt directly with all of these folks and the service was first-class, as expected. 
PS Audio and Pass Labs have impressed me greatly. Very responsive and clearly want to make sure you are happy as a user.
Bryston has been great.  Have never had a problem, but many questions and all answered quickly.
Surprised Keith Herron hasn’t shown up yet—the best! Also great experience with LTA and Lou at Daedalus. My recent purchase with Paulo at Sempersonus, maker of a very fine idler-type turntable was remarkably pleasant and professional. All wonderful guys truly dedicated to their craft and clients.