Marston Records
- Label in Swarthmore, Pennsylvania offers extensive program notes on singers and recordings, many of historical significance.
- http://www.marstonrecords.com/html/catalogue.htm

Merlin Classics
- Independent label for Classical music from light Classical to Contemporary works.
- http://www.merlinclassics.com/

Musical Observations Inc
- Recordings by Paul Zukofsky and others of Schnabel, Cage, Feldman, Scelsi, Leifs and others.
- http://www.musicalobservations.com

MusicNow
- Contemporary classical music by British composers and performers as well as world and community music.
- http://www.musicnow.co.uk/

Music Minus One
- Recordings of Classical music minus solo instrument for students to accompany.
- http://www.musicminusone.com/