Name
- A. L. Tonika, of Bergen, Norway; music publishers, fl 1954-19601
- Aber, Adolf, music publisher, 1893-1960, http://isni.org/isni/000000...1
- Accademia Nazionale di Santa Cecilia, 1585-1
- Adams, David, music publisher, fl 1955-19901
- Adler, Peter Herman, conductor, 1899-1990, http://isni.org/isni/000000...1
- Albersen Muziek, Dutch music publishers, 1928-1
- Alfred Kalmus Ltd., music publishers, fl 19581
- American Composers' Alliance, 1937-1
- Ampenoff, Rufina, music publisher, 1912-1993, http://isni.org/isni/000000...2
- Anglo-Soviet Music Press, music publishers, 1948-1970?3
- Apollo-Verlag, music publishers of Zürich, fl 1947-19591
- Aprahamian, Felix, writer on music, 1914-20051
- Ars Polona, of Warsaw; booksellers, 1953-1
- Artia, Czech publishing house, fl 1958-19671
- Artisjus, Hungarian Intellectual Property Office, 1953-1
- Arvid Englind, of Stockholm; music dealers, fl 1958-19591
- Ascherberg, Hopwood & Crew, Ltd., music publishers, 1906-1
- Asow, Erich Hermann, German musicologist, 1892-1964, http://isni.org/isni/000000...1
- Associated-Rediffusion Ltd., fl 19581
- Atlantis Verlag, 1930-1