| SIMPLEX DIAM LIMITED | Private company limited by shares | Live |
| STANDARD DIAM LIMITED | Private company limited by shares | Live |
| STAR DIAM LIMITED | Private company limited by shares | Live |
| STAR MOON DIAM LIMITED | Private company limited by shares | Live |
| SURBHI DIAM LIMITED | Private company limited by shares | Live |
| R Diam Trading Limited | Private company limited by shares | Live |
| Trinity Diam Limited | Private company limited by shares | Live |
| VARNEY DIAM LIMITED | Private company limited by shares | Live |
| VENI DIAM LIMITED | Private company limited by shares | Live |
| YUHAN DIAM HK LIMITED | | Live |
| DIAMA FOLLY TRADING COMPANY LIMITED | Private company limited by shares | Live |
| DIAMA TRADING LIMITED | Private company limited by shares | Live |
| DIA-MAB LIMITED | Private company limited by shares | Live |
| DIAMAC LIMITED | Private company limited by shares | Live |
| DIAMAND HOLDING LIMITED | | Live |
| DI-AMANDA LIMITED | Private company limited by shares | Live |
| Diamandino Limited | Private company limited by shares | Live |
| Diamania Jewelry Limited | Private company limited by shares | Live |
| DIAMANT LIMITED | Private company limited by shares | Live |
| DIAMANT EN SON LIMITED | Private company limited by shares | Live |
| DIAMANT COURONNE LIMITED | Private company limited by shares | Dissolved |
| Diamant La Diva Limited | | Live |
| LE DIAMANT JEWELLERY COMPANY LIMITED | Private company limited by shares | Dissolved |
| VIVIENNE DIAMANT LIMITED | Private company limited by shares | Live |
| DIAMANT WEBER LIMITED | Private company limited by shares | Dissolved |
| Top Diamantaire Limited | Private company limited by shares | Live |
| DIAMANTE COMPANY LIMITED | Private company limited by shares | Dissolved |
| DIAMANTE HK LIMITED | Private company limited by shares | Dissolved |
| DIAMANTE LIMITED | Private company limited by shares | Live |
| EL DIAMANTE & ASSOCIATES LIMITED | Private company limited by shares | Dissolved |
| DIAMANTE LIGHTING LIMITED | Private company limited by shares | Live |
| Diamantisse Investments Limited | Private company limited by shares | Dissolved |
| Diamantlab Limited | Private company limited by shares | Live |
| DIAMANTVALOR LIMITED | Private company limited by shares | Dissolved |
| DIAMART LIMITED | Private company limited by shares | Live |
| DIAMART (HK) LIMITED | Private company limited by shares | Live |
| Diamart Jewellery Limited | Private company limited by shares | Live |
| DIAMAS LIGHTING CO., LIMITED | Private company limited by shares | Live |
| DiaMatch (Hong Kong) Company Limited | Private company limited by shares | Live |
| Diamatrix Company Limited | Private company limited by shares | Live |
| DIAMAX LIMITED | Private company limited by shares | Dissolved |
| DIAMAX CO., LIMITED | Private company limited by shares | Live |
| Diamax Group Limited | Private company limited by shares | Live |
| Diamax Trading Limited | Private company limited by shares | Live |
| DIAMCAD HONG KONG LIMITED | Private company limited by shares | Live |
| DIAMCO LIMITED | Private company limited by shares | Live |
| DIAMDEL (HONG KONG) LIMITED | Private company limited by shares | Live Commenced dormancy on 21-Jun-2013 |
| DIAMED CHINA LIMITED | Private company limited by shares | Live |
| DIAMEDIC LIMITED | Private company limited by shares | Live |
| DIAMENSFIELD LIMITED | Private company limited by shares | Dissolved |
| DIAMETA INC LIMITED | Private company limited by shares | Live |
| International Large Diameter Well & Pile Association Limited | Private company limited by shares | Live |
| DIAMI LIMITED | Private company limited by shares | Dissolved |
| DIAMI HK LIMITED | Private company limited by shares | Live |
| Diami Professional Ink Co., Limited | Private company limited by shares | Live |
| Diami Intellectual Property Company Limited | Private company limited by shares | Live |
| DIAMID LIMITED | Private company limited by shares | Live |
| DIAMID LIMITED | | Live |
| DIAMILLE ENTERPRISES LIMITED | Private company limited by shares | Live |
| DIAMINPAL INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| DIAMINTEL LIMITED | Private company limited by shares | Live |
| DIAMIT HK LIMITED | Private company limited by shares | Live |
| DIAMITZ INVESTMENTS LIMITED | Private company limited by shares | Live |
| DIAMLASER LIMITED | Private company limited by shares | Live |
| DIAM.NET LIMITED | Private company limited by shares | Live |
| DIAMOND KO & COMPANY, LIMITED | Private company limited by shares | Dissolved |
| YU KEE DIAMOND COMPANY LIMITED | Private company limited by shares | Live |
| KA WAH DIAMOND LIMITED | Private company limited by shares | Live |
| DIAMOND ACE LIMITED | Private company limited by shares | Dissolved |
| DIAMOND EYE LIMITED | Private company limited by shares | Dissolved |
| YUE TAI DIAMOND COMPANY LIMITED | Private company limited by shares | Dissolved |
| DIAMOND UP COMPANY LIMITED | Private company limited by shares | Dissolved |
| RED DIAMOND LIMITED | Private company limited by shares | Live |
| GEM DIAMOND LIMITED | Private company limited by shares | Live |
| HEI LEE DIAMOND COMPANY LIMITED | Private company limited by shares | Dissolved |
| LSW DIAMOND LIMITED | Private company limited by shares | Dissolved |
| DIAMOND WAY LIMITED | Private company limited by shares | Dissolved |
| JIN TAI DIAMOND LIMITED | Private company limited by shares | Dissolved |
| DIAMOND SUM LIMITED | Private company limited by shares | Live |
| DIAMOND SKY COMPANY LIMITED | Private company limited by shares | Dissolved |
| TAI SHO DIAMOND COMPANY, LIMITED | Private company limited by shares | Dissolved |
| DIAMOND GEM LIMITED | Private company limited by shares | Dissolved |
| NEW DIAMOND LIMITED | Private company limited by shares | Dissolved |
| K. DIAMOND LIMITED | Private company limited by shares | Dissolved |
| DIAMOND LIMITED | Private company limited by shares | Dissolved |
| DIAMOND WIN LIMITED | Private company limited by shares | Dissolved |
| TOP DIAMOND LIMITED | Private company limited by shares | Dissolved |
| DIAMOND ART LIMITED | Private company limited by shares | Dissolved |
| DIAMOND MAX LIMITED | Private company limited by shares | Dissolved |
| ADD DIAMOND LIMITED | Private company limited by shares | Dissolved |
| HIT DIAMOND COMPANY LIMITED | Private company limited by shares | Live |
| DIAMOND LIMITED -THE- | Private company limited by shares | Live |
| DIAMOND BAR LIMITED | Private company limited by shares | Dissolved |
| BIG DIAMOND LIMITED | Private company limited by shares | Dissolved |
| NEW AGE DIAMOND LIMITED | Private company limited by shares | Dissolved |
| S.K DIAMOND COMPANY LIMITED | Private company limited by shares | Live |
| L. N. DIAMOND CO. LIMITED | Private company limited by shares | Live |
| J. Y. DIAMOND CO. LIMITED | Private company limited by shares | Dissolved |
| D FOR DIAMOND COMPANY LIMITED | Private company limited by shares | Dissolved |
| PN DIAMOND LIMITED | Private company limited by shares | Live |