Publishers – W
- Waldorf Publications
- Walking Frog Records
- Walrus Music Publishing
- Walter De Gruyter
- Walton Music
- Waltons Music
- Warger-te Kolstee
- Warner Chappell Music
- Warwick Music
- Watch & Learn
- Waveney Music Publishing
- WB/BM Archive
- WBA
- Wehrli Publications
- Weinberger
- Weintraub Publishing
- Wells Music Publishers
- Welly Days
- Weltmusik Edition International
- Wergo
- Wertach Musikverlag
- Wessmans musikförlag
- WestBow Press
- White Falcon Publishing
- White Prince Editions
- Whitlock Trust
- Wicky Music
- Wide World
- Wiener Urtext
- Wild Music Publications
- Wilkinson
- Willem de Mooy
- Willemsen
- Williamson Music
- Willis Music
- Wim Magré
- Wingert-Jones
- Wings Press
- Winner Music
- Winwood Music
- Wise Essex Music
- Wise Publications
- Wisteria Music Books
- Wolters Noordhoff
- Wolthuis Muziekschool
- Wonderful Winds
- Wood Lake Books
- WoodBrass Music
- Woods Music & Books
- Woodstock
- Working Muso
- World of Brass
- Worldwide Creativity
- Worshipheart Publishing
- Wright & Round Limited
- Writers Of Note Limited
- WW Norton & Co
- Wydawnictwo Nasza Wiedza
