Chesky Records
David Chesky's line of audiophile music by obscure artists, some of them good. Buy over the web, including some DVD 24/96 stuff.
http://www.chesky.com

Reference Recordings
High-end recordings from Prof. Johnson.
http://www.referencerecordings.com/

John Marks Records
Audiophile label; John Marks is a well-known writer in this space.
http://www.jmrcds.com/

Opus3 Records
Swedish audiophile label specializes in timeless music.
http://www.opus3records.com/

Telarc International
Classical, jazz, crossover and blues recordings famous for big digital sound. Lots of realaudio music at the site.
http://www.telarc.com/

SRI Records
Collector's edition recordings from artists such as Ella Fitzgerald, Willie Nelson, Etta James and Little Richard. Offers free audio, downloads and online store.
http://www.srirecords.com/

AIX Records
Catalog, mission statement, technical information. and reviews for this DVD-Audio oriented label.
http://www.aixrecords.com

Audio Fidelity
Catalog, upcoming releases, message board, and company profile. Specializes in original master tape reissues on 180 gram vinyl LP and SACD.
http://www.audiofidelity.net/

Traumton Records
Based in Berlin, Germany. Specializing in audiophile quality, recordings of jazz, world and ambient/avantgarde music.
http://www.traumton.de/