Marcum Michael
Mark Steven D.
Martikainen Ilpo
Martin Audio Limited
Martin-Logan, Ltd.
Martinez Emilio Reynaldo
Martinez Wilton Mario
Maruta Kaoru
Matsuoka Fumiya
Matsuzaka Yohzoh
Matthews Gair Richard
Mayes Laurence Richard
Mazejka John W.
MB Quart Electronics U.S.A., Inc.
McClure Louis C.
McDowell William C.
McGroddy Jim
McGuire Rex
McGurty Howard J.
McPhilliamy Stephen