 J. Defrance |
 J.A.B. |
 J.B.L. |
 J.M. Reynaud |
 J.R. |
 Jack |
 Jack |
 Jackson Bell |
 Jacobsen's Elektriske Verksted |
 JAD |
 Jad Orchestral |
 JAG |
 Jahr |
 Jamistor |
 Jams |
 Janfred |
 Janfred |
 Japy |
 JAS |
 Jason |
 Jason (GB) |
 Jaz |
 Jaz |
 JBC |
 Jean Charlet |
 Jeanne D'Arc |
 Jeanrenaud |
 Jeep Radio |
 Jeffrey-Radio |
 Jensen |
 Jericho |
 Jeulin |
 Jewel |
 Jewett |
 Jiskra |
 Jiskra |
 Jiskra |
 Joba |
 Jobo |
 Jocel |
 Jolliet |
 Jolliet |
 Jonophon |
 JostyKit |
 Jotha Radio |
 JRC |
 JTA |
 Judex |
 Juhel |
 Jupiter-Radio |
 Jura |
 Jura |
 Jura |
 Jura |
 JVC |
 JVC |
 JVC |
 JYE |