Company loyalty- What has been your favorite?

Well, since you asked, for me it would be:

Resolution Audio. (Providing free service to fix a problem, albeit a minor one, for an Opus 21 cdp, that I had bought used no less, puts Jeff Kalt as a truly stand up guy in my book!) So Kudos to R.A.!!!!

I have also recieved very good service from Ayre, for providing information about, and eventually upgrading, my K-1xe preamp. Good Job Charles and staff!

Honorable mentions go to Eggleston Works (Andra II speakers) and Lamm (M2.1 amplifier) for also providing me with information and advice when requested!

My two cents worth.

Thiel, and Ayre have really impressed me both with customer service and sound quality.

From my experience...for product quality and service excellence (if required):

Atma-Sphere
Exemplar Audio
KAB Electo Acoustics
Lamm
Modwright
Pass Labs
VAC
Wright Sound Company

Graham Engineering
Galibier
SimAudio
Klyne Audio Arts
Audio Space
Herbie's Audio Labs
Soundsmith
Benz Micro

A couple of Montreal dealers, including Son Ideal.
Arcadia Audio and Ovation Audio in the Toronto area.
Two Canadian distributors, Charisma Audio and Plurison.
UHF Magazine.

Another vote for ECM. Also Hyperion, Harmonia Mundi, Analekta and Atma.

Resolution Audio and Thiel. Both for sound quality and customer service. I bought my RA CD-50 on ebay and when I contacted RA about a problem I was having with the remote control Jeff Kalt sent me a new remote control along with a new EPROM chip to accommodate the remote. Guess what he charged? Nada!
Similar service from Thiel for used speakers.