Marken: M
- Muddy Waters
- Mudhoney
- Mudlark's Press
- Muela
- Mueller, Virginia
- Muery Salzmann Verlag
- Mugford, Simon
- Muggs
- Mugshot
- Muhr, Josef
- Muid
- Mukherjee, Abir
- Mulan
- Muldaur, Geoff
- Muldaur, Jenni
- Muleskinner
- Mulford, A. K.
- Mulini di Segalari
- Mulino Caputo
- Mull, Brandon
- Mullet Monster Mafia, The
- Mullican, Moon
- Mulligan, Gerry
- Mullineux
- Mullins, Joe & Radio Ramblers
- Mullins, Shawn
- MultiCopy
- MultiMotion
- Multidisciplinary Association for Psychedelic Studies
- Multifurn
- Multiline
- Multilingual Matters
- Multimetrix
- Multiplayer 3.0
- Multiyilego
- Multnomah
- Multnomah Press
- Mulvey, Peter
- Mum
- Mumbles
- Mumford & Sons
- Mumm
- Mumps
- Mums Know Best
- Munay Publishing
- Munch
- Munch Museum
- Mundaka
- Mundi
- Mundo Marketing / Hayit Medien
- Mundorgel
- Mundorgel Verlag GmbH
- Mung Bean Press
- Mungo Jerry
- Munich
- Munich Sports
- Municipal Waste
- Munio
- Munk
- Munro (Saki), Hector Hugh
- Munro Quartet, Charlie
- Munyon, David
- Mura Mura Ceramics
- Murad's Harmonicats, Jerry
- Murakami, Haruki
- Muratori
- Murdoch Books
- Mure & Peyrot
- Murgia, Madhumita
- Muri Gries
- Muriel Lester
- Murlvare
- Murmann Publishers
- Murmuration Books
- Murmurmuse
- Muro
- Murota, Maori
- Murphey, Michael Martin
- Murphy's
- Murphy's Magic
- Murphy, Patrick
- Murphy, Sean
- Murphy, Trish
- Murphy, Turk
- Murray, Arthur
- Murray, Eleanor J. & Rothman, Kenneth J. & Huybrechts, Krista F.
- Murray, Larry
- Murray, Lily
- Murray, Ruby
- Murrayol
- Murrelektronik GmbH
- Murrplastik Systemtechnik GmbH
- Mursia
- Musa, Mansa
- Musaicum Books
- Muscadine Bloodline
- Muscheler, Ursula
- Muse
- Muse & Moon Publishing
- Muse Literary
- Musee Rodin
- Museum Tusculanum Press
- Museum of Fine Arts,Boston
- Museum of Modern Art
- Museum of Modern Art in Warsaw
- Museum of New Mexico Press
- Musgraves, Kacey
- Musguard
- Mushkin
- Mushroams
- Mushroom
- Music Factory
- Music Man
- Music Minus One
- Music Pro Guides
- Music Sales
- Music Sales America
- Music Sales Limited
- Music Sales Limited DBA Omnibus Press
- Music Sales Limited im