| 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 |
| WK Security (Hong Kong) Limited | Private company limited by shares | Live |
| ASM Security Hong Kong Co Limited | Private company limited by shares | Live |
| D TEG SECURITY (HONG KONG) LIMITED | Private company limited by shares | Live |
| TTS Security Hong Kong Limited | Private company limited by shares | Live |
| Security (Hong Kong) Limited | Private company limited by shares | Live |
| Oyster Security (Hong Kong) Limited | Private company limited by shares | Live |
| HONWAY SECURITY LIMITED | Private company limited by shares | Live |
| HYPERION SECURITY LIMITED | Private company limited by shares | Live |
| IDENTOGRAPH SECURITY SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| I.L.C. SECURITY INVESTMENTS LIMITED | Private company limited by shares | Live |
| IMMUNEEDGE SECURITY LIMITED | Private company limited by shares | Dissolved |
| IMPERIAL SECURITY LIMITED | Private company limited by shares | Dissolved |
| INDIAN SECURITY SERVICE CO. LIMITED | Private company limited by shares | Live |
| HSY SECURITY INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| DRAGON SECURITY INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| JOY SECURITY (HONG KONG) INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| SECURITY POWER INDUSTRIAL LIMITED | Private company limited by shares | Live |
| SAFELOCK SECURITY INDUSTRIAL LIMITED | Private company limited by shares | Live |
| SECURITY INDUSTRY LIMITED | Private company limited by shares | Live |
| INNOV SECURITY LIMITED | Private company limited by shares | Dissolved |
| INSTANT SECURITY (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| Road Security Insurance Limited | | Live |
| INTEGRATED SECURITY SOLUTIONS LIMITED | Private company limited by shares | Live |
| STRUCTURAL SECURITY & INTEGRATED TRANSPORT LIMITED | Private company limited by shares | Dissolved |
| INTELLIGENT SECURITY SOLUTIONS LIMITED | Private company limited by shares | Live |
| Intelligent Security Solutions (Mongolia) Limited | Private company limited by shares | Live |
| Security Intelligent Systems Limited | Private company limited by shares | Live |
| XENA Intelligent Security Limited | Private company limited by shares | Live |
| INTER SECURITY TECHNOLOGY LIMITED | Private company limited by shares | Live |
| INTERNAL SECURITY LIMITED | Private company limited by shares | Dissolved |
| 100 Internet Security Limited | Private company limited by shares | Live |
| DOMINION INVESTIGATION AND SECURITY SERVICE LIMITED | Private company limited by shares | Dissolved |
| SECURITY INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Key Security Investment Limited | Private company limited by shares | Live |
| Dart Security Investment Limited | Private company limited by shares | Live |
| INWELLS SECURITY SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| iRetail Security Technology Co. Limited | Private company limited by shares | Live |
| ISAT SECURITY ALARM & TELECOMMUNICATION LIMITED | Private company limited by shares | Dissolved |
| I-SOON Digital Security Company Limited | | Live |
| ITSec Security Consulting Limited | | Live |
| JACKSON SECURITY SYSTEMS COMPANY LIMITED | Private company limited by shares | Live |
| JANTEC SECURITY SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| HK JINRUI SECURITY TECHNOLOGY LIMITED | Private company limited by shares | Live |
| JKDC SECURITY CO LIMITED | Private company limited by shares | Live |
| SHENZHEN JOTECH SECURITY CO., LIMITED | Private company limited by shares | Dissolved |
| KABOARD SECURITY LIMITED | Private company limited by shares | Dissolved |
| KAPRO SECURITY SYSTEM LIMITED | Private company limited by shares | Live |
| KAVASS SECURITY TECH LIMITED | Private company limited by shares | Live |
| HK KEKAXI SECURITY TECHNOLOGY LIMITED | Private company limited by shares | Live |
| KINGTING SECURITY AUTOMATION LIMITED | Private company limited by shares | Live |
| KONE SECURITY COMPANY LIMITED | Private company limited by shares | Live |