| Abbott and Smith |
| Avalon Guitars |
| Beltona Resonator Instruments |
| Walter James Bird |
| Blackstar Amplification |
| Bond Electraglide |
| Brindley & Foster |
| Cedric Arnold, Williamson & Hyatt |
| Chapman Guitars |
| Charles Lloyd & Co. |
| Cheetah Marketing |
| Nigel Church |
| Conacher and Co. |
| Alfred De Courcy |
| Dewtron |
| Distin family |
| William Drake (organ builder) |
| Edelweiss Pianos |
| Electronic Dream Plant |
| Elliot and Hill |
| Thomas Elliot (organ builder) |
| Clifford Essex |
| Freshman Guitars |
| Fret-King |
| Fylde Guitars |
| Goetze and Gwynn |
| Gordon Smith Guitars |
| Samuel Green (organ builder) |
| Hanson Clarinet Company |
| Harrison & Harrison |
| Hayman drums |
| Hele & Co |
| William Hill & Son |
| William Hill & Son & Norman & Beard Ltd. |
| Robert Hope-Jones |
| Howarth of London |
| J Hudson & Co |
| James Dixon & Sons |
| Jennings Musical Instruments |
| Albert Keates |
| Lachenal & Co. |
| Lewis & Co |
| Charles Lloyd (organ builder) |
| George Lowden |
| Maestrovox |
| Mander Organs |
| Marshall Amplification |
| McCallum Bagpipes |
| Michael Rath Trombones |
| Moon Guitars |
| Natal Drums |
| Nicholson & Co Ltd |
| Norman and Beard |
| Novation Digital Music Systems |
| Oxford Synthesiser Company |
| Picato Musician Strings |
| Premier Percussion |
| Red Sound Systems |
| Rotosound |
| Rushworth and Dreaper |
| Shergold |
| Simmons (electronic drum company) |
| Supersound Electronic Products |
| Lorenzo Valentine |
| Vintage Guitars |
| Vox (company) |
| W Dowler & Sons |
| J. W. Walker & Sons Ltd |
| Henry Arthur Ward |
| Westfield (guitars) |
| Henry Willis & Sons |
| E. Wragg & Son |