| CROWN SECURITY LIMITED | Private company limited by shares | Dissolved |
| Cubical Security Limited | Private company limited by shares | Live |
| Cybele Security Limited | Private company limited by shares | Live |
| DEFENCECORP CYBER SECURITY Limited | Private company limited by shares | Dissolved |
| Legendary Cyber Security Limited | | Live |
| Cypher Cyber Security Consultancy Limited | Public company limited by shares | Live |
| DALI SECURITY ENGINEERING LIMITED | Private company limited by shares | Live |
| DANIEL BOONE SECURITY COMPANY, LIMITED | Private company limited by shares | Dissolved |
| DATA SECURITY COMPANY LIMITED | Private company limited by shares | Dissolved |
| Deep Sea Security Limited | Private company limited by shares | Live |
| SHENZHEN DELITEK SECURITY LIMITED | Private company limited by shares | Live |
| CNT SECURITY ENTERPRISE DEVELOPMENTS LIMITED | Private company limited by shares | Dissolved |
| DeWe Security Limited | Private company limited by shares | Live |
| DIAMOND SECURITY GROUP LIMITED | Private company limited by shares | Live |
| DIAWARD ELECTRONIC SECURITY SYSTEMS LIMITED | Private company limited by shares | Live |
| DIEBOLD ENTERPRISE SECURITY SYSTEMS PACIFIC LIMITED | Private company limited by shares | Dissolved |
| RP Digital Security Limited | Private company limited by shares | Live |
| Digital Security Limited | | Live |
| Dolphin Security Limited | Private company limited by shares | Live |
| Imperial Dragon Security, Limited | Private company limited by shares | Live |
| SECURITY DYNAMICS ASIA LIMITED | Private company limited by shares | Dissolved |
| EAGLEFAIR SECURITY LIMITED | Private company limited by shares | Live Commenced dormancy on 27-Oct-2014 |
| EAST ASIA SECURITY LIMITED | Private company limited by shares | Live |
| EAST CHINA SECURITY LIMITED | Private company limited by shares | Dissolved |
| E-EYES SECURITY LIMITED | Private company limited by shares | Dissolved |
| FO NGAI ELECTRONIC SECURITY SYSTEMS LIMITED | Private company limited by shares | Live |
| WAI KEE SECURITY ENGINEERING LIMITED | Private company limited by shares | Live |
| HOI TIN SECURITY ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| 247 LOCKSMITH & SECURITY ENGINEERING CO. LIMITED | Private company limited by shares | Live |
| 365 Locksmith & Security Engineering CO. Limited | Private company limited by shares | Live |
| SECURITY ENTERPRISES, LIMITED | Private company limited by shares | Dissolved |
| E-SAFE SECURITY SOLUTIONS LIMITED | Private company limited by shares | Dissolved |
| Etronic Security Systems Limited | Private company limited by shares | Live |
| EUROLOGIX SECURITY LIMITED | Private company limited by shares | Live |
| EXCELLENT SECURITY LIMITED | Private company limited by shares | Dissolved |
| EXPRESS SECURITY LIMITED | Private company limited by shares | Live |
| EYEVIEW SECURITY LIMITED | Private company limited by shares | Live |
| FASTCOR SECURITY LIMITED | Private company limited by shares | Dissolved |
| Favour Security Limited | Private company limited by shares | Live |
| SECURITY FINANCE LIMITED | Private company limited by shares | Dissolved |
| FEIGELADI (FINLAND) SMART SECURITY CO., LIMITED | | Live |
| ACE FORCE SECURITY LIMITED | Private company limited by shares | Live |
| ASIAN FORCE SECURITY LIMITED | Private company limited by shares | Live |
| PACIFIC FORCE SECURITY LIMITED | Private company limited by shares | Dissolved |
| FOREMOST SECURITY LIMITED | Private company limited by shares | Live |
| FORTIFY SECURITY SYSTEM LIMITED | Private company limited by shares | Dissolved |
| SECURITY FORWARDING (S.E. ASIA) LIMITED | Private company limited by shares | Live |
| Foster Security and Systems Service Limited | | Live |
| FUFEN SECURITY LIMITED | Private company limited by shares | Live |
| FULL SECURITY LIMITED | Private company limited by shares | Live |
| FUTURE-TECH IT SECURITY LIMITED | Private company limited by shares | Live |
| GATEWAY SECURITY LIMITED | Private company limited by shares | Dissolved |
| Gateway Security Business Limited | Private company limited by shares | Live |
| Gather Security Limited | | Live |
| General Security Limited | Private company limited by shares | Live |
| G.I.D. EVENT SECURITY COMPANY LIMITED | Private company limited by shares | Live |
| G.I.D. STORE SECURITY COMPANY LIMITED | Private company limited by shares | Live |
| NEW GLOBAL SECURITY CO. LIMITED | Private company limited by shares | Live |
| CHINA GLOBAL SECURITY ASSOCIATION LIMITED | Company limited by guarantee | Live |
| Liguo Global Security Service Co., Limited | Private company limited by shares | Live |
| Global Security Consultancy Limited | | Live |
| GLOBAL PROTECTION AND SECURITY CONSULTING LIMITED | Private company limited by shares | Live |
| GOLDFORCE GLOBAL SECURITY LIMITED | Private company limited by shares | Dissolved |
| GLOBAL INVESTIGATION AND SECURITY CONSULTANCY LIMITED | Private company limited by shares | Live |
| GLOBAL SAFETY & SECURITY LIMITED | Private company limited by shares | Dissolved |
| Global Security Service Limited | | Live |
| Global Security System Limited | Private company limited by shares | Live |
| Godguard Security Limited | Private company limited by shares | Live |
| GODJUSTICE SECURITY SERVICE LIMITED | Private company limited by shares | Live |
| Gold Sky Security Limited | Private company limited by shares | Live |
| Good Yield Security Limited | | Live |
| GOODWILL SECURITY LIMITED | Private company limited by shares | Live |
| GRAND SECURITY LIMITED | Private company limited by shares | Live |
| GRAND-ACCESS SECURITY CO., LIMITED | Private company limited by shares | Live |
| CNT SECURITY GROUP LIMITED | Private company limited by shares | Live |
| FS SECURITY GROUP LIMITED | Private company limited by shares | Live |
| VIP SECURITY GROUP LIMITED | Private company limited by shares | Live |
| ASIA SECURITY GROUP LIMITED | Private company limited by shares | Live |
| CHINESE SECURITY GROUP LIMITED | | Live |
| ASIA CRISIS AND SECURITY GROUP LIMITED | Private company limited by shares | Live |
| HK ASIA PANDA GAS SECURITY GROUP LIMITED | Private company limited by shares | Live |
| SECURITY RISK GROUP LIMITED | Private company limited by shares | Live |
| Security Sense Group Limited | Private company limited by shares | Live |
| GUANGDONG STEELMATE SECURITY CO., LIMITED | Private company limited by shares | Dissolved |
| GUANGZHOU ANT SECURITY CO., LIMITED | Private company limited by shares | Dissolved |
| M-phoenix Security Guard Limited | | Live |
| Guardforce Security Limited | Private company limited by shares | Live |
| GuardMax Security Limited | Private company limited by shares | Live |
| GUARDTRONIC SECURITY SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| Hawk Security Limited | Private company limited by shares | Live |
| Hawk View Security Limited | | Live |
| HIGHTACT SECURITY LIMITED | Private company limited by shares | Dissolved |
| HITECH SECURITY LIMITED | Private company limited by shares | Live |
| Shenzhen Wolf-Guard Security Hi-tech Co., Limited | Private company limited by shares | Live |
| Yatu Hi-Tech Security Company Limited | Private company limited by shares | Live |
| HOLLAND SECURITY SYSTEMS LIMITED | Private company limited by shares | Live |
| Honeywell Security (Hong Kong) Limited | Private company limited by shares | Live Ceased dormancy on 03-Jun-1999 |
| SECURITY CARD (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| Cloud Security (Hong Kong) Limited | Private company limited by shares | Live |
| Cyber Security (Hong Kong) Limited | Private company limited by shares | Live |