| A-R Editions | |    |
| American Composer Alliance | | |
| Christiano Accardi publisher Roma | He is known as uploader www.imslp.com | |
| Accolade online shop | | |
| Adamant Media Corporation | | |
| Akademische Druck- und Verlagsanstalt | | |
| Albion Music | See Complete Music since 1991 | |
| Alfred Publishing Co. Inc. | | |
| Amadeus Verlag | | |
| Amphion | See: Durand | |
| Musikverlag Johann Andre | | |
| Notenshop Andre | | |
| Anglia Music Company | | |
| Anglo-American Music Publishers | | |
| Musica Clasica Argentina | | |
| Edizione Armelin-Padova | | |
| Edizione Armelin Musica | | |
| Ascolta | | |
| Augener | Today it is part of Stainer & Bell | |
| Australian Music Centre | | |
| AVA Musical Editions | | |