Publishers – W
- Waldorf Publications
- Walrus Music Publishing
- Walton Music
- Waltons Music
- Warger-te Kolstee
- Warner Chappell Music
- Warwick Music
- Waveney Music Publishing
- WB/BM Archive
- WBA
- Weinberger
- Weintraub Publishing
- Wells Music Publishers
- Wergo
- Wertach Musikverlag
- Wessmans musikförlag
- White Falcon Publishing
- White Prince Editions
- Whitlock Trust
- Wicky Music
- Wide World
- Wiener Urtext
- Wild Music Publications
- Wilkinson
- Willem de Mooy
- Willemsen
- William Grant Still Music
- Williamson Music
- Willis Music
- Wingert-Jones
- Wings Press
- Winner Music
- Winwood Music
- Winzer Press
- Wise Essex Music
- Wise Publications
- Wisteria Music Books
- Wolters Noordhoff
- Wolthuis Muziekschool
- Wood Lake Books
- WoodBrass Music
- Woods Music & Books
- Woodstock
- Working Muso
- World of Brass
- Wright & Round Limited
- Writers Of Note Limited
- WW Norton & Co
