Mould In Hell Records

Sweden

Moumoutt Productions

unknown

Mountain

United-Kingdom

Mountain Distro-Prod

Brazil

Mountain Drought Distro

USA

Mountain Goat Productions

Portugal

Mountain Records

USA

Mountain Top

unknown

Mountains

Unknown

Mountastic Records

unknown

Mourning Light Records

unknown

Mourning Sound Records

Singapore

Mourningwood Recordings

Sweden

Mouse Records

Singapore

Mouse Trick Track Music

Germany

Mousou Saizensen

Japan

Mouth Of Belial Productions

Sweden

Mouth Of Madness Tapes

Canada

Mouthbreather Records

USA

Move On

unknown

Movement Records

Japan

Movieplay

Spain

Moving Air Music

Sweden

Moving Restlessly

Chile

Moving Sound

Italy

Mox Records

Spain

Moxie International

USA

Mozaik Records

unknown

MP Productions

France

MP Records (GER)

Germany

MP Records (UK)

United-Kingdom

MP Studioz

Unknown

Mp3.com

USA

MPB

Germany

MPDS Colombia

Colombia

MPM Records

Germany

Mqazem Abattoir Products

Finland

Mr D Music

Germany

Mr Hanke Music

Japan

Mr Kitty Records

USA

Mr Metal Records

Serbia

Mr Nobody (Bootleg)

Brazil

MR Records

Switzerland

Mr Vain Records

Germany

MRAfia Records

USA

MRM Production

Sweden

Mrs Red Sound

France

MRT Records

USA

MS Metal Records

Brazil

MS Records

Unknown

MSA

unknown

MSE Records

unknown

MSG Records

unknown

MSI Music

unknown

MSK Records

unknown

Msound Records

unknown

MSP Music

unknown

MSR Productions (Metal Spirit Resurrection)

Russia

MT Audio

unknown

MTAF Records

France

MTD Production

Malaysia

MTF Music

Unknown

MTG

Finland

MTJ Agencja Artystyczna

Poland

MTM Music

Germany

MTM Prod. Records

Argentina

MTZ Music

USA

Much Music Promotion Recordings (MMP Recordings)

Switzerland

Mucky Records

unknown

Mucupurulent Productions

Mexico

Mud Hut Digital

United-Kingdom

Mud Records

unknown

Mudflap Records

USA

Mudscrape Productions

USA

Muerte Al Silencio

Spain

Muerte Matar Records

Spain

Muerte Negra Discos

USA

Muerte Records (MEX)

Mexico

Muerte Records (USA)

USA

Muertto Records

unknown

Mula Terca Records

Mexico

Mule Tracks

unknown

Mulehorse

Australia

Mülleimer Records

Germany

Mullet Death Records

USA

Mulligore Productions

Canada

Multi Coloured Music

Italy

Multi Music Media

Croatia

Multi Records

unknown

Multicom City

unknown

Multifuckingnational Records

United-Kingdom

Multimedia Publishing

unknown

Multimedia Records

Serbia

Multiplatinum Records

Finland

Multisonic

Czechia

MUME

unknown

Mums Records

USA

Munck Mix

USA

Mundo En Kaos Records

Mexico

Munich Maintown Project

unknown