Sachimay Records
An experimental/improvised label promoting artists such as Matt Weston, Tatsuya Nakatani, and Khristian Weeks.
Selektion
An ars organization and record label that is home to RLW, Achim Wollscheid, Charly Steiger and others.
SHADETEk Records
An independent experimental electronic label out of NYC and division of Change Agent group. With news, releases, live dates, downloads, and merchandise.
Shimmy Disc
Label for experimental and independent bands. Founded by Kramer, producer of Urge Overkill and Low.
Silvergirl Records
Releases Holiday Flyer, Gapeseed, and Track Star. Specializes in Indie-Rock and Experimental music. Includes artist profiles and reviews.
simballrec
Experimental music label releasing music by projects including Languis, Fer Chloca, Soulo, and Transistor Cricket.
Sinusoidal Records
An independent label based in Vancouver, Canada. With project sound samples, profiles, and links.
Skam Records UK
Home to Gescom, Boards of Canada, and Bola. With RealAudio clips and downloads.
Sloppy Abortion Records
A noise and experimental label based in Jacksonville, Florida. Artists include Whimsical Fetus, The Smocks, Fuzzy Bunnies, and Mafia Dumptruck.
Slum Communications and Darth Fuck Records
Non-profit labels conspiring to revise and expand the underground electronic music movement.
Sniffle Records
Bringing the music, artists, and recordings from this label and Pamplemousse Studios to a wider audience. Artists include Jean-Michel Dupont, Sir Walter Raleigh's Folly, And the Bride wore Black, Chris Ancille, and DJ Slipnott & MC Ghetto.
Soleilmoon Recordings
Excellent site for dozens of ambient, experimental, and noise artists. Also an excellent store, for 30 underground labels.
Sonaria
Releasing avant-garde and experimental music. Artists include Christoph Heemann, Kranioklast, Organum, and Bladder Flask.
Spaceball Entertainment
Producers of preposterous multi-media art noise/pop/rock/casio sound. With MP3s and video clips.
Spectre Records
Industrial, dark, doom, noise, and experimental record label. Small, but nice list of artists.
Squealer Music
Record label with an international roster of refuseniks and experimentalists including High Rise, Spatula, William Hooker, Tono-Bungay, the Last Days of May, Charles Curtis, the Gold Sparkle Band, the Tower Recordings and others. Focused on improv, out-rock and other experimental sounds.
Staalplaat
An organization that includes a record label, print publisher, radio show, shop, mail-order and distribution for ambient dance, dark experimental, plunderphonic, sound poetry and electronic avant-garde music.
Sub Rosa
One of the first ambient and industrial music labels. They have re-released some of the defunct Rough Trade catalog. Located in Belgium.
Subversive Records
Experimental, electronica, noize, lo-fi, ambient and extreme music distribution and label from Australia. Featuring artists such as The Oppenheimer Project, Locii, and Intergalactic Trucking Company.
Summersteps Records
With releases by artists such as Psychatrone Rhonedakk, Youth Aflame (The Choppers), Amasa, and Giraffe Hair. Also currently featuring "A Tribute to Jandek", with songs by Low, Amy Denio, Thurston Moore's Dapper, Gary Young, Monster Island, Retsin, and Bright Eyes.
Systorm Technologies
An experimental electronic record label based in New York City. Site contains artist profiles, MP3s, news, and an online store.