Publishers – P
- P. Jurgenson
- Pan Educational Music
- Panopoly
- Panta Rhei Uitgeverij
- Panyard
- Papagena Press
- Paraclete Press
- Partitura Verlag Winterthur
- Paterson
- Patterdale
- Paul Bruinen
- Paul Ibberson
- Paul Lovatt-Cooper Publications
- Paul Sacher Stiftung
- Paul Simon
- Pavane Publishing
- PCA
- Peacock Press
- Ped Xing Music
- Peer Music
- Peghead Productions
- Pelican Publishing
- Pelikan
- Pembroke Music Company
- Pendragon Press
- Penguin Books
- Pennsylvania State University Press
- People's Music Publishing House
- Peppertree Press
- Percussive Arts Society
- Periferia Publishing
- Perrysongs Music Publishing
- Peter Kneale Music
- Peter Meechan Music
- Peter Wildeman Muziek
- Peters Archive
- Peters Edition
- Petrucci Library Press
- Phil Keaggy Music
- Philip Johnston
- Philipzen Percussion
- Phoenix Music
- Phylloscopus Publications
- Pianissimo Publishing
- Piano Companion
- Piano with Lauren
- Pierswell Press
- Piles editorial del musica
- Pine Castle Music Publishing
- Pipeblower Publishing
- Piper Publications
- Piping Centre, The
- Pizzicato Verlag Helvetia
- Play Along Factory
- Play Music
- Playing With Colour Publications
- Plural Publishing
- PM Press
- Poco Studio
- POMO Music Publisher
- Pop Academy of Music
- Porter Productions
- Power House Orchestrations
- Power Music Company
- PraiseSong
- Prana Healing Arts
- Praxis Music Publications
- PRIM-Musikverlag
- Prima Arts
- Prima Vista Musikk
- Prime Music
- Pro Musica mayr
- Professional Music Institute
- Progetti Sonori
- Project Music Lovers
- Promenade Publications
- Promusic Publishing
- Proza Musica
- Pucihar Music
- Pure Tone
- Purzelbaum Verlag
- Puscoiu
- Pustjens Percussion Publications
- PWM
