| Harbeth | www.harbeth.com |
| Harman International | www.harman.com |
| Harmony-central | www.harmony-central.com |
| Harrison - Hurtz | www.harrisonhurtz.com |
| Hart Dynamics Inc. | www.hartdynamics.com |
| Helios | www.helios.nl |
| Heritage Guitar | www.heritageguitar.com |
| Hevos | www.hevos.nl |
| HHB | www.hhb.co.uk |
| HiFi | www.hifi.nl |
| High Tech Hilversum | www.hightechhilv.com |
| Hiwatt | www.audiobro.u-net.com |
| Hofstad Orgel en Keyboard Club | www.hofstadorgel-enkeyboardclub.nl |
| Hohner USA | www.hohnerusa.com |
| Holland Amps | www.hollandamps.com |
| Hosa Technology | www.hosatech.com |
| Hughes & Kettner | www.hughes-and-kettner.com |
