 C. Crane |
 C.A.M.E.E. |
 C.A.R.A.C. |
 C.A.S.A. |
 C.C.O. Radio |
 C.C.R. |
 C.E.L. |
 C.E.M.A. |
 C.E.M.A. |
 C.E.P.M.A.-Radio |
 C.E.R.A. |
 C.F.C. Radio |
 C.F.R. |
 C.G.E. |
 C.G.S. Radio |
 C.I.B. |
 C.I.R.E.F. |
 C.I.R.E.F. |
 C.I.R.E.F. |
 C.M.R. |
 C.P.D.R |
 C.R.C. |
 C.R.C. |
 C.R.E.A. |
 C.R.E.O. |
 C.R.E.O. |
 C.R.E.O.R. |
 C.R.O.M. |
 C.R.V.P. |
 C.R.W. |
 Cabasse |
 Cadillac |
 CamECA |
 Camille Montu |
 Campio |
 Cant |
 Capehart |
 Capehart |
 Capello |
 Capitaine Kohn |
 Carad |
 Carea |
 Cartel |
 Cartex |
 Carton |
 Casino |
 Cassinelli |
 Castilla |
 Caussé |
 Cebor |
 Cecla |
 Celestion |
 Celestion |
 Celler |
 Cellondia |
 Cellor |
 Celta Radio |
 Celta Radio |
 Centrad |
 Central des Ondes |
 Centrum |
 Century Radio |
 CEREL |
 Cerutti |
 Cétri |
 Chabane Electronic |
 Champion Radio (F) |
 Champion Radio (GB) |
 Champion Radio (SE) |
 Channel Master |
 Chante Clair |
 Chapelle |
 Chapelle |
 Chaperon |
 Charm'vox |
 Charron, Bellanger et Duchamp |
 Chauvin Arnoux |
 Cholin Ferry et Paul |
 Cibot Radio |
 CIMEL |
 Cinédyne |
 CIRM |
 CIT |
 Citizen |
 Citra |
 Citroën |
 City |
 Clairfilm |
 Claironde |
 Clairson |
 Clapp-Eastham |
 Clarens |
 Clarion |
 Clarnet |
 Clarom |
 Claronde |
 Clarson |
 Clarville |
 Clarville |
 Clarvox |
 Claude |
 Clavier |
 Clément |
 Clément |
 Clément (Pierre) |
 Clevox |
 Clough-Brengle |
 Co.Ra |
 Cobra |
 Coelivox |
 Cogekit |
 Cogerel |
 Collins |
 Colonial Radio |
 Columbia |
 Columbia Viva-Radio |
 Comix |
 Commet |
 Compagnie Générale de Radioélectricité |
 Compagnie Parisienne de Radiophonie |
 Comptoir Général de TSF |
 Comptoir MB Radio |
 Comptoirs Championnet |
 Concerton |
 Concord |
 Concorde |
 Condor |
 Condor |
 Conion |
 Conserton |
 Constellation |
 Construction Radio-Moderne / Construction Radio Omnium Moderne |
 Constructions Radio-Electr. de Montreuil |
 Constructions Radioelectriques A. Pupko |
 Continental (US) |
 Continental Edison |
 Continental Edison Saba |
 Cooperative Ouvrière de TSF |
 Cooperative Ouvrière de TSF |
 Corafel |
 Corona |
 Coronado |
 Cosmo |
 Cosmos |
 Cosmos (Cie El.) |
 Cosmos (Cie Radioelectr.) |
 Cossor |
 Cossor |
 Coulbeaux |
 Cradial |
 Craft |
 Craig |
 Craig |
 Craig |
 Craw'son |
 Creal |
 CRES |
 Crescendo |
 Criou |
 Crisler |
 Cristal |
 Cristal Extase |
 Cristal Grandin |
 Cristalton |
 Croizet |
 Crosley |
 Crosley |
 Crown |
 Cutting & Whashington |
 Czeija, Nissl & Co |