ATOP Innovation S.p.A.
Audio Dynamics Corporation
Audiodeu AB
Audoin Michel
Auflick Jack L.
Augustin Peter Vincent
Aultman Terry A.
Auvinen Stuart
Auwens Johannes C. L.
AV Niche (Recording Systems) Limited
Averbuch Zeev
Avigdor Sheshnev
Awano Hiroyuki
Awata Mitsuhiko
Ayari Susann
Azuma Motoo
Azuma Taiki
Azumatani Yasushi
Azumi Masaaki