| ACT | COUNTRYCNT | EDITIONED | FESTIVALFES |
|---|---|---|---|
| Adam Masterson | GBUnited Kingdom 2004 | | |
| ADHD | NLNetherlands 2004 | | |
| ADI-J | NLNetherlands 2004 | | |
| Adi Lukovac | BABosnia and Herzegovina 2004 | | |
| Admiral Freebee | BEBelgium 2004 | | |
| Alamo Race Track | NLNetherlands 2004 | | |
| Alfie | GBUnited Kingdom 2004 | | |
| Alien Nation | NLNetherlands 2004 | | |
| Ane Brun | NONorway 2004 | | |
| Anima Sound System | HUHungary 2004 | | |
| Arsenal | BEBelgium 2004 | | |
| A.S. Dragon | FRFrance 2004 | | |
| Audiotransparent | NLNetherlands 2004 | | |
| Autumn | NLNetherlands 2004 | |