Publishers – P
- P. Jurgenson
- Packard Humanities Institute
- Paladino Music
- Pan Educational Music
- Pan Macmillan
- PAN Verlag
- Panopoly
- Panyard
- Papagena Press
- Paraclete Press
- Partitura Verlag Winterthur
- Paterson's Publications
- Patterdale
- Paul Lovatt-Cooper Publications
- Paul Sacher Stiftung
- Paul Simon
- Pavane Publishing
- Peacock Press
- Ped Xing Music
- Peer Music
- Peghead Productions
- Pelican Publishing
- Pembroke Music Company
- Penguin Books
- People's Music Publishing House
- Percussion Plus
- Percussion Versand Herbert Brandt
- Percussive Arts Society
- Periferia Publishing
- Perri's
- Peter Lang
- Peters Archive
- Peters Edition
- Petrucci Library Press
- Philippe Barnes
- Philipzen Percussion
- Phoenix Music
- Phylloscopus Publications
- Pianissimo Publishing
- Piano Hive
- Piccolo Musikverlag Berlin
- Pierswell Press
- Piles editorial del musica
- Pine Castle Music Publishing
- Piper Publications
- Pizzicato Verlag Helvetia
- Play Music
- Playing With Colour Publications
- Plural Publishing
- Plymouth Music
- PM Press
- Poco Studio
- POMO Music Publisher
- Porter Productions
- Power House Orchestrations
- Power Music Company
- PPV Medien
- PraiseSong
- Prana Healing Arts
- Praxis Music Publications
- PreSonus
- Prim
- PRIM-Musikverlag
- Prima la musica!
- Prima Vista Musikk
- Pro Musica
- Professional Music Institute
- Progetti Sonori
- Promenade Publications
- Promusic Publishing
- Prospect Studio-Label-Verlag
- Pucihar Music
- Purzelbaum Verlag
- Puscoiu
- Pustjens Percussion Publications
- PWM
- Pyramid Music
