| G.M.T. LIMITED | Private company limited by shares | Dissolved |
| G.M.T Limited | Private company limited by shares | Live |
| GM&T Limited | Private company limited by shares | Live |
| GMTA LIMITED | Private company limited by shares | Live |
| GMTA Consulting Limited | | Live |
| GMTA Global Music Teachers Association Limited | | Live |
| GMTC LIMITED | Private company limited by shares | Live |
| GMTech Limited | Private company limited by shares | Dissolved |
| GMTECH HK LIMITED | | Live |
| GMTee Limited | Private company limited by shares | Live |
| GMTEX LIMITED | Private company limited by shares | Dissolved |
| GMTF Limited | Private company limited by shares | Dissolved |
| GMTJD LIMITED | | Live |
| GMTK LIMITED | Private company limited by shares | Live |
| GMTM LIMITED | | Live |
| GMT-TRAORE TRADING CO., LIMITED | | Live |