| ACT | COUNTRYCNT | EDITIONED | FESTIVALFES |
|---|---|---|---|
| Sage | NLNetherlands 2003 | | |
| Sandusky | NLNetherlands 2003 | | |
| Satellite 7 (Winnaar GPvN) | NLNetherlands 2003 | | |
| Schneider TM | DEGermany 2003 | | |
| Sêna | NLNetherlands 2003 | | |
| Sidonie | ESSpain 2003 | | |
| Silkstone | NLNetherlands 2003 | | |
| Ska-P | ESSpain 2003 | | |
| Slovo | GBUnited Kingdom 2003 | | |
| Slut | DEGermany 2003 | | |
| Smogus | NLNetherlands 2003 | | |
| SnowVideo VJ-collectief | NLNetherlands 2003 | | |
| Sonia | SKSlovakia 2003 | | |
| Soundsurfer | NLNetherlands 2003 | | |
| Spanner | NLNetherlands 2003 | | |
| S.P.E.C.T.R.E. | DKDenmark 2003 | | |
| Spinvis | NLNetherlands 2003 | | |
| Spoiler | NLNetherlands 2003 | | |
| Starfighter | BEBelgium 2003 | | |
| Still Niño | NLNetherlands 2003 | | |
| Sukilove | BEBelgium 2003 | | |
| Superheroes | DKDenmark 2003 | |