Iwari
- E-label releasing free original underground music from the genre in MP3 format.
- http://www.iwari.com/

Isolate Records
- Home to artists such as Venetian Snares, Optic, and O.S.T. Information, artists, releases, link and contact.
- http://www.isolaterecords.com/

Iris Light Records
- Artists include Corkyees, Ashfelt and Fire Escape. Catalog, reviews, interviews, links, and online ordering. Located in United Kingdom.
- http://www.irislight.demon.co.uk/

Irdial
- Home to The Conet Project, Beautyon and Anthony Manning. Features a blog and a mailing list. Based in London, United Kingdom.
- http://www.irdial.com/

Interstate 40 Music
- Based in Melbourne, Australia. Features bands including Underminers, Black Cab, Foil, Stereomatic, and Rikers Island. Specializes in releasing a progressive cross-over between guitars and music of the genre.
- http://www.interstate40music.com/

Interchill Records
- Based in Canada. Artists include Dreamlogic, Pilgrims of the Mind, and EKKO. News, discography, audio clips, and online ordering.
- http://www.interchill.com/

Inflatabl
- Releases music from Atom Heart and Small Rocks. Accepts demos.
- http://www.inflatabl.com/