| DEVON TECHNICAL SERVICES LIMITED | Private company limited by shares | Live |
| DICKSON TECHNICAL SERVICES LIMITED | Private company limited by shares | Live |
| D.MED TECHNICAL SERVICES LIMITED | Private company limited by shares | Live |
| D.M.S. TECHNICAL SERVICES LIMITED | Private company limited by shares | Dissolved |
| TECHNICAL DOCUMENTATION SERVICES LIMITED | Private company limited by shares | Live |
| Impala Technical Documentation Services Limited | Private company limited by shares | Live |
| DONG HAI TECHNICAL SERVICES AND SUPPLIES LIMITED | Private company limited by shares | Dissolved |
| Dragon Technical Services Limited | Private company limited by shares | Live |
| FAR EAST TECHNICAL SERVICES LIMITED | Private company limited by shares | Dissolved |
| Far East Technical Services Limited | Private company limited by shares | Live |
| EASTERN TECHNICAL SERVICES LIMITED | Private company limited by shares | Dissolved |
| EUROPEAN EASTERN TECHNICAL SERVICES LIMITED | Private company limited by shares | Live |
| ELKHART ENGINEERING AND TECHNICAL SERVICES LIMITED | Private company limited by shares | Dissolved |
| ELTON TECHNICAL SERVICES LIMITED | Private company limited by shares | Live |
| ETS ENERGY TECHNICAL SERVICES LIMITED | Private company limited by shares | Live |
| ACCRA ENGINEERING & TECHNICAL SERVICES LIMITED | Private company limited by shares | Dissolved |
| ANDA ENGINEERING AND TECHNICAL SERVICES LIMITED | Private company limited by shares | Live |
| CHINA TECHNICAL & ENGINEERING SERVICES LIMITED | Private company limited by shares | Live Commenced dormancy on 28-Aug-2012 |
| KALAKAL ENGINEERING & TECHNICAL SERVICES LIMITED | Private company limited by shares | Dissolved |
| WING LEE ENGINEERING & TECHNICAL SERVICES LIMITED | Private company limited by shares | Live |
| ESHER TECHNICAL SERVICES LIMITED | Private company limited by shares | Live |
| E-STAR TECHNICAL AND SERVICES COMPANY LIMITED | Private company limited by shares | Live |
| EXTENSIVE STANDARD TECHNICAL SERVICES COMPANY LIMITED | Private company limited by shares | Live |
| FENWICK TECHNICAL SERVICES LIMITED | Private company limited by shares | Dissolved |
| FREDDY'S TECHNICAL SERVICES LIMITED | Private company limited by shares | Live |
| FUGRO TECHNICAL SERVICES LIMITED | Private company limited by shares | Live |
| Lap Fung Technical Services Limited | Private company limited by shares | Live |
| GENNIE TECHNICAL SERVICES LIMITED | Private company limited by shares | Dissolved |
| GEOLAB TECHNICAL SERVICES LIMITED | | Live |
| GLOBAL TECHNICAL SERVICES LIMITED | Private company limited by shares | Dissolved |
| QUALITY 8 GLOBAL TECHNICAL SERVICES LIMITED | Private company limited by shares | Dissolved |
| GLOBE TECHNICAL SERVICES LIMITED | Private company limited by shares | Dissolved |
| LEGEND GOOD TECHNICAL SERVICES LIMITED | Private company limited by shares | Dissolved |
| GOTO TECHNICAL SERVICES LIMITED | Private company limited by shares | Live Commenced dormancy on 27-Jan-2005 |
| GREAT TOP TECHNICAL SERVICES LIMITED | Private company limited by shares | Live |
| GULF TECHNICAL SERVICES LIMITED | Private company limited by shares | Dissolved |
| HEALING TECHNICAL SERVICES COMPANY LIMITED | Private company limited by shares | Dissolved |
| HING WAH TECHNICAL SERVICES LIMITED | Private company limited by shares | Dissolved |
| HINKEY TECHNICAL SERVICES LIMITED | Private company limited by shares | Live |
| EDBI Technical Services (Hong Kong) Limited | | Live |
| Bit (Hong Kong) Technical Services Limited | Private company limited by shares | Live |
| EMTEK TECHNICAL SERVICES (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| SYSWARE (HONG KONG) TECHNICAL SERVICES LIMITED | Private company limited by shares | Live |
| Horizon Technical Services Limited | Private company limited by shares | Dissolved |
| HOTEL TECHNICAL SERVICES LIMITED | Private company limited by shares | Live |
| HuiDe Maritime Technical Services CO., Limited | | Live |
| HUMBLE TECHNICAL SERVICES LIMITED | Private company limited by shares | Dissolved |
| HYDRO TECHNICAL SERVICES LIMITED | Private company limited by shares | Live |
| China Industrial Technical Services Limited | Private company limited by shares | Live |
| INMAC TECHNICAL SERVICES LIMITED | Private company limited by shares | Live |
| INNOVATIVE TECHNICAL SERVICES LIMITED | Private company limited by shares | Live |
| General Inspection & Technical Services Co., Limited | Private company limited by shares | Live |
| T.A. Technical Inspection Services HK Limited | Private company limited by shares | Live |
| INTEGRATED TECHNICAL SERVICES LIMITED | Private company limited by shares | Dissolved |
| INTELLIGENT TECHNICAL SERVICES LIMITED | Private company limited by shares | Live |
| Jengco Technical Services Limited | Private company limited by shares | Live |
| Johnson Technical Services Limited | Private company limited by shares | Live |
| Junki Technical Services Limited | Private company limited by shares | Live |
| Jyoti Technical Services Limited | Private company limited by shares | Live |
| KEMKLEN TECHNICAL SERVICES LIMITED | Private company limited by shares | Live |
| Kemklen Technical Services (China) Limited | Private company limited by shares | Live |
| KEMKLEN TECHNICAL SERVICES (ZS) LIMITED | Private company limited by shares | Live |
| Keyway Technical Services Limited | Private company limited by shares | Live |
| KONGDU TECHNICAL SERVICES LIMITED | Private company limited by shares | Live |
| Kuma Technical Services Limited | Private company limited by shares | Dissolved |
| LANDOIL TECHNICAL SERVICES LIMITED | Private company limited by shares | Dissolved |
| LANDSEA TECHNICAL SERVICES LIMITED | Private company limited by shares | Live |
| LIFE TECHNICAL SERVICES AND AGENCIES LIMITED | Private company limited by shares | Dissolved |
| CUNNINGHAM LINDSEY TECHNICAL SERVICES LIMITED | Private company limited by shares | Dissolved |
| Luton Technical Services Limited | | Live |
| MAGENTA TECHNICAL SERVICES LIMITED | Private company limited by shares | Live |
| MARINE TECHNICAL SERVICES LIMITED | Private company limited by shares | Dissolved |
| TECHNICAL MARINE SERVICES LIMITED | Private company limited by shares | Dissolved |
| MARINE TECHNICAL SERVICES LIMITED | Private company limited by shares | Live |
| SCAN MARINE TECHNICAL SERVICES CO., LIMITED | Private company limited by shares | Live |
| MARITIME TECHNICAL SERVICES LIMITED | Private company limited by shares | Live |
| MEDICAL TECHNICAL SERVICES LIMITED | Private company limited by shares | Dissolved |
| MIKE SMITH TECHNICAL SERVICES LIMITED | Private company limited by shares | Dissolved |
| M.M.C. Technical Services Limited | Private company limited by shares | Live |
| MODU TECHNICAL SERVICES LIMITED | Private company limited by shares | Live |
| Newsen Technical Services Limited | | Live |
| NORTHERN TECHNICAL SERVICES LIMITED | Private company limited by shares | Dissolved |
| OFFSHORE TECHNICAL SERVICES LIMITED | Private company limited by shares | Live |
| OPTIMIX TECHNICAL SERVICES LIMITED | Private company limited by shares | Live |
| OVERSEAS TECHNICAL SERVICES, LIMITED | Private company limited by shares | Dissolved |
| ARGO TECHNICAL SERVICES PACIFIC LIMITED | Private company limited by shares | Dissolved |
| Parry Technical Services Limited | Private company limited by shares | Live |
| PCCW-HKT TECHNICAL SERVICES LIMITED | Private company limited by shares | Live |
| PEDRINI TECHNICAL SERVICES ASIA LIMITED | Private company limited by shares | Dissolved |
| PEJAY TECHNICAL SERVICES LIMITED | Private company limited by shares | Dissolved |
| TECHNICAL PETROLEUM SERVICES LIMITED | Private company limited by shares | Dissolved |
| POLYURETHANE TECHNICAL SERVICES LIMITED | Private company limited by shares | Dissolved |
| POWERS TECHNICAL SERVICES LIMITED | Private company limited by shares | Live |
| PRIMA TECHNICAL SERVICES LIMITED | Private company limited by shares | Live |
| TECHNICAL PRODUCTION SERVICES LIMITED | Private company limited by shares | Live |
| CHINA TECHNICAL PROMOTION SERVICES LIMITED | Private company limited by shares | Live |
| Q.PRO INSPECTION & TECHNICAL SERVICES LIMITED | Private company limited by shares | Live |
| QUALITY TECHNICAL SERVICES CO., LIMITED | Private company limited by shares | Live |
| RAIL TECHNICAL SERVICES LIMITED | Private company limited by shares | Dissolved |
| RELWA TECHNICAL SERVICES LIMITED | Private company limited by shares | Live |