Manifold Records

USA

Manimal Productions

Russia

Maninblack Records

unknown

Manitou Music

France

Manitu Records

Colombia

Manitua Records

Canada

Maniyax Records

Germany

Mankind Disaster Records

Slovenia

Mankind's Demise Records

Canada

Manmade Records

United-Kingdom

Mannequin Rein Recordings

USA

Mannequin Vanity Records

USA

Manqueller

United-Kingdom

Manshark Entertainment

USA

Mansion Of Lost Spirits Records

Finland

Mansion Records

Finland

Manticore Records

United-Kingdom

Manto Negro Producciones

Chile

Manto Nocturno

Colombia

Mantra Records

Greece

Mantra Spenta

Russia

Mantratya Productions

Luxembourg

Mantricum Records

Spain

Manufacture Sound Output Co

USA

Manufaktura Legenda

Poland

Manx Record Company

unknown

MAP

South-Africa

Map City

unknown

Maphia Management

USA

Mapl Music

Latvia

Maple Kiss Artist Stars Production

Japan

Maple Leaf Records

unknown

Maple Metal Records

Canada

Maquiavel Music Entertainement

Portugal

Mar@sm Records

unknown

Mara Productions

Poland

Mara Records

Poland

Maracas Records

unknown

Maraga Art Music

Mexico

Marbil Entertainment

South-Africa

Marble Arch Records

United-Kingdom

Marble Wood Productions

Bulgaria

Marbre Negre

Spain

Marburg Records

Germany

Marc

Japan

Marcel Prod

France

Marcha Al Holocausto Negro

Chile

Marcha Atras Records

unknown

Marchalenta Records

Spain

Marche Funebre Productions

Russia

Marco Music Box

Czechia

Marder Suitcase

Japan

Marduk Records

Italy

Marea Negra Records

Ecuador

Margin Art

Russia

Marginados Producciones

Argentina

Marginal

Mexico

Marginal Sound

unknown

Marginal Works

unknown

Maria Records

unknown

Mariann Grammofon

Sweden

Marianne Records

unknown

Marijuanos Records

Chile

Marijunaut Records

Austria

Marin Records

unknown

Marion Cobretti Records

Spain

Maris Musik

Germany

Marista Records

Netherlands

Maritim

unknown

Mark My Words Records

United-Kingdom

Mark Of The Devil

unknown

Marked For Death Records

Germany

Market Square Records

United-Kingdom

Marlboro Music

Germany

Marmaduke Records

USA

Marox Records

unknown

Marquee

South-Korea

Marquee Records

Brazil

Marrekie Records

Germany

Marrow In The Pines

Canada

Mars

Japan

Mars Hill Records

unknown

Mars Music Productions

Austria

Mars Record

Japan

Marshall Records

United-Kingdom

Marshead Records

unknown

MarsMelons

Norway

MarsMountains

Netherlands

Marsol Records

Costa-Rica

Martel En Tête

unknown

Martelo Down Records

unknown

Martelo Pneumático

Portugal

Martha's Music

USA

Martillando El Craneo De Cristo

Chile

Martin Jäger

Germany

Marty Records

unknown

Martyr Music Group

USA

Martyr Records

USA

Martyrdom Records

USA

Martyrdoom Productions

Greece