| 1. | Orange Recordings | | | Chicago indie rock label. Artists include Cash Money, Chris Ballew, White Hassle, and the Mother Hips. Audio clips, news, press, message board, tour dates, and online store. www.orangerecordings.com |
| 2. | Old Pants | | | Denver, Colorado indie. Artists include Tech T., Sherwen, and Chad Steele. MP3s, discography, and links. www.oldpants.com |
| 3. | Old 3C Records | | | Columbus, Ohio indie. Home of Log and Great Plains. Discography, tour dates, and ordering information. www.old3c.com |
| 4. | Octagon Records | | | Scotts Valley, California indie. Artists include Ribsey's Nickel, What Man Was, Ivory Noon, and Paul Grove. News, MP3s, and online ordering. www.octagonrecords.com |
| 5. | Overture Music | | | Michigan hip-hop, rap, and rock label. Artists include Universal Stomp, Kool Keith, and Bootleg. News, discography, links, MP3s, and online store. www.overturemusic.com |
| 6. | Open Sky Music | | | New age music. Artists include Shamanic Dream, Peter Makena, and Anugana. News, reviews, audio clips, and online ordering. openskymusic.com |
| 7. | Orleans Records | | | Based in New Orleans, Louisiana. Artists include Danny Barker, Tony Green, and Guitar Slim Jr. Ordering, reviews, and mailing list. orleansrecords.com |
| 8. | Ocean Records | | | Lakewood, Washington rap and hip-hop label. Artists include Azarel and Criminal Nation. MP3s, mailing list, news, photos, and store. www.oceanrecords.com |
| 9. | Oneohfive Records | | | Hardcore/punk/indie label, based in New York. Artists include Madeline Ferguson and Misled by Lies. Discography, ordering, and contact details. www.oneohfive.com |
| 10. | ObliqSound | | | Munich and New York based label. Streaming audio tracks, online shop, artist news, MP3 downloads and company profile. www.obliqsound.com |
| 11. | Oddio Records | | | Pennsylvania label. Artists include Dive, Godhead Disciple, and The Worry Knot. News, catalog, mailing list, and online store. www.oddiorecords.com |
| 12. | Orphanage Productions | | | Hawaiian indie label and recording studio. Artists include Stubborn Boogie, Al Tringali, and the Huh Band. News, discography, audio clips, and links. www.geocities.com |
| 13. | Ocean Drive Recordings | | | Texas based lo-fi, electronic, and industrial music label. Artists include Trudgernaut, The Blue Room, and Audio Simplicity. News, catalog, and mailing list. www.oceandriverecordings.com |
| 14. | OtterSong Records | | | New age, ambient, and progressive rock music. Home of John Luttrell and Underwater Flying Lessons. News, audio clips, discography, and ordering information. www.ottersong.com |
| 15. | Ojet Records | | | Austin, Texas indie; artists include Schrasj, Lucky Motors and Mathlete. Includes a list of signed bands, tour dates, and sound clips. www.ojet.com |
| 16. | Omega Point Records | | | Electro/Indie Pop label based in Chicago. Home to the Mystechs, Pomes, Supra Argo, Velva, Corporate MF, and Avenpitch. www.omegapointrecords.com |
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