C Four Pty. Ltd.
C. & E. Feini GmbH & Co.
C.E.S. (Grinding Machines) Limited
C.I.C.E. S.A.
C.I.Ma.A Costruzioni Italiane Macchine Attrezzi S.p.A.
C4 Carbides plc
Caber, Inc.
Cabot microelectronics Corporation
Cadisch Jakob
Cailloux Jean-Francois
Cain Alan
Caldari Gianfranco
Calkins Noel C.
Callinan Kevin M.
Camel Grinding Wheel Works, Sarid Ltd.
Camillo Bianchi
Cammack Andrew S.
Camp Edward C.
Campbell Murray Robert
Campbell Nicoll A. D.