| A | B | C | D | E | F | G | H | I | J | K | L | M | N |
| O | P | Q | R | S | T | U | V | W | X | Y | Z |
| O | P | Q | R | S | T | U | V | W | X | Y | Z |
| Label | Artyści | Debiut |
|---|---|---|
| Witchhunt Records | Anathema | 1992 |
| Witching Hour Productions | Cssaba | 1995 |
| Within Temptation Entertainment BV | Within Temptation | 2012 |
| Wizard Ltd. | Eufobia | 2011 |
| Wobblyhead | Casino Versus Japan | 2001 |
| Woodstock Tape & Video Corp. | Dream Theater | 2008 |
| Worldchaos Production | Fatima Hill | 2002 |
| WormHoleDeath | Dark Mirror Ov Tragedy | 2014 |
| Wotre Music | Loudblast | 1995 |
| Wwilko | Kap Bambino | 2002 |
| X-treme Records (2) | Eternal Tears Of Sorrow | 1997 |
| XIII Bis Records | Front 242 | 2003 |
| XIII BIS Records, Metal 13 | Loudblast | 1998 |
| Xochipillinavi Studios | Ministry | 2010 |
| Xtreem Music | Unreal Overflows | 2012 |
| Yamaha Music Communications | Blackmore's Night | 2004 |
| Yellow Records | Pure Hate | 1985 |
| Ytsejam Records | Dream Theater | 2006 |
| Zardoz Music | Mekong Delta | 2007 |
| Zen Possé | Pink Freud | 2003 |
| Zensor | Throbbing Gristle | 1981 |
| Zero Budget Productions | Duobetic Homunkulus | 2013 |
| Zero Corporation | Savatage | 1998 |
| Zero Corporation / SPV | Savatage | 1995 |
| ZNS Tapes | Suicide Commando | 1988 |
