| A D Gitarrentechnologie GmbH | Germany |
| C. F. Martin | USA |
| C. F. Martin Mexico | Mexico |
| Collings Guitars | USA |
| Dyna Musical Instruments | Japan |
| G&L Musical Instruments / BBE Sound Inc. | USA |
| Gibson Guitar Acoustic Division | USA |
| Gibson Guitars - Nashville Custom Division | USA |
| Gibson USA - Factory | USA |
| Glaser Instruments | USA |
| Guitar Czar | USA |
| Kepma Guitars | China |
| McPherson Guitars | USA |
| Mike Lull Custom Guitars | USA |
| Music Gallery Inc. | USA |
| Nahou Information Technology | China |
| Peavey Electronics Corporation | USA |
| plekHaus | Germany |
| Sam Ash Music Corporation | USA |
| Samick Guitars | Indonesia |
| Suhr Guitars | USA |
| Sweetwater Sound Inc. | USA |
| Sydney Guitar Setups | Australia |
| Takamine Gakki Co. Ltd. | Japan |
| Warwick GmbH &Co. KG | Germany |
