| Haight-Masonic Laboratories (San Francisco, California) |
| Hairballs (San Diego, California) |
| Halakahiki (San Francisco, California) |
| Happy Hour (Ann Arbor, Michigan) |
| Head (St. Kilda West, Victoria, Australia) |
| Heartbeat Productions |
| Heptown (Sweden) |
| Heyday (Temecula, California) |
| Hi-Fi White Jazz / Music Network (Stockholm, Sweden) |
| Hillsdale (San Francisco, California) |
| HTB Press |
| Hyperfuzzy |
| Hypno-Tone |
| Hypothermic (Groningen, The Netherlands) |