Publishers – W
- Wagner Verlag
- Waldemar Leers
- Waldorf Publications
- Walrus Music Publishing
- Walter De Gruyter
- Walton Music
- Waltons Music
- Warner Chappell Music
- Warners Group Publications
- Wartburg Verlag
- Warwick Music
- Waveney Music Publishing
- Waxmann Verlag
- Wayne Leupold Editions
- WB/BM Archive
- WBA
- Weinberger
- Weintraub Publishing
- Wells Music Publishers
- Weltmusik Edition International
- Wenner Books
- Werbeservice & Notensatz
- Wergo
- Werner H. Theisen
- Wertach Musikverlag
- Wessmans musikförlag
- West Margin Press
- Westcountry Music
- Western International Music
- Westminster Music
- Westpark Music
- White Prince Editions
- Whitlock Trust
- Wide World
- Wiener Urtext
- Wiener Waldhornverein Verlag
- Wild Music Publications
- Wildenloh Verlag
- Wildt's Musikversand
- Wildt's Musikversand e.K. Inh. Barbara Born-Wildt
- Wilfin Music
- Wilhelm Haake Musikverlag
- Wilkinson
- Willem de Mooy
- Willemsen
- William Allen Music
- William Alwyn Foundation
- William Grant Still Music
- Williamson Music
- Willis Music
- Willon Verlag
- Wind Music Publications
- Windsong Press
- Windspiel Musikverlag
- Wingert-Jones
- Winner Music
- Winwood Music
- Winzer Press
- Winzer Press
- Wise Essex Music
- Wise Publications
- Wolfgang G. Haas-Musikverlag Köln
- Wolters Noordhoff
- Wonderful Winds
- WoodBrass Music
- Woods Music & Books
- Woodstock
- Woodstock Music
- Workin' Label Edizioni
- Working Muso
- Workshop Musik
- World of Brass
- World Scientific Publishing Company
- Worpsweder Musikwerkstatt
- Worship Together
- Wright & Round Limited
- Writers Of Note
- Wunderle
- Wutzler Verlag
- WW Norton & Co
