| S.E.G. CO., LIMITED | Private company limited by shares | Live |
| SEG. MAGCARD INVESTMENT HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| SEG. MARKETING LIMITED | Private company limited by shares | Dissolved |
| GENERAL SIGNAL (S.E.G.) ASIA LIMITED | Private company limited by shares | Dissolved |
| SEGA LIMITED | Private company limited by shares | Dissolved |
| China Sega Energy Limited | Private company limited by shares | Live |
| Sega Enterprise Limited | | Live |
| SEGA ENTERTAINMENT LIMITED | Private company limited by shares | Live |
| SEGA INC. LIMITED | Private company limited by shares | Dissolved |
| SEGA PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| SEGA SHIPPING LIMITED | Private company limited by shares | Live |
| SEGACO INDUSTRY LIMITED | | Live |
| SEGA.COM ASIA NETWORKS LIMITED | Private company limited by shares | Dissolved |
| P. SEGAL COMPANY LIMITED | Private company limited by shares | Dissolved |
| SAN SEGAL HONG KONG LIMITED | Private company limited by shares | Live |
| SHENZHEN SEGALED OPTO CO., LIMITED | Private company limited by shares | Live |
| LAI CHIN & SEGALINI LIMITED | Private company limited by shares | Dissolved |
| SHENZHEN SEGALLAC TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| KOREA Segalon Cosmetics (Asia) Co, Limited | Private company limited by shares | Dissolved |
| SEGAL'S OF HONG KONG LIMITED | Private company limited by shares | Dissolved |
| SEGAL'S (MICHAEL) LIMITED | Private company limited by shares | Dissolved |
| SEGAM TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| SEGAMI MEDICS (H.K.) LIMITED | Private company limited by shares | Dissolved |
| SEGANG TRADE COMPANY LIMITED | Private company limited by shares | Live |
| Segantii Capital Management Limited | Private company limited by shares | Live |
| SEGARA ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SEGARA International Limited | Private company limited by shares | Live |
| WASESA SEGARA RAHAYU LIMITED | Private company limited by shares | Live |
| SEGATRIX COMPANY LIMITED | Private company limited by shares | Dissolved |
| HK Segawa Pml Precision Mechanism Limited | Private company limited by shares | Live |
| SEGBE TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Segbot Technology Co., Limited | Private company limited by shares | Live |
| SEGCO INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| SEGCOM DISPLAYTECH CO., LIMITED | Private company limited by shares | Live |
| SEGE COMPANY LIMITED | Private company limited by shares | Dissolved |
| SEGE (HONGKONG) LIMITED | Private company limited by shares | Dissolved |
| SEGE MICRO SEMI (H.K.) LIMITED | Private company limited by shares | Dissolved |
| Nine Sege Trading Co., Limited | Private company limited by shares | Live |
| SEGEA LIMITED | Private company limited by shares | Live |
| Segeburger (Hong Kong) Limited | Private company limited by shares | Live |
| SEGEDE ASIA COMPANY LIMITED | Private company limited by shares | Dissolved |
| SEGEL COMPANY LIMITED | Private company limited by shares | Live |
| Segelwind Company Limited | | Live |
| Segen Limited | Private company limited by shares | Live |
| SEGEN'S PRAISE LIMITED | Private company limited by shares | Live |
| SEGENT AND COMPANY LIMITED | Private company limited by shares | Dissolved |
| SEGENT ENTERPRISE LIMITED | Private company limited by shares | Live |
| SEGERMAN & CO. LIMITED | Private company limited by shares | Dissolved |
| SEGERSTROM (CHINA) LIMITED | Private company limited by shares | Dissolved |
| Segesaisi Limited | | Live |
| SEGGAN HKG LIMITED | Private company limited by shares | Dissolved |
| SEGGER ENGINEERING LIMITED | Private company limited by shares | Dissolved |
| SEGGER INTERNATIONAL GROUP LIMITED | Private company limited by shares | Dissolved |
| SEGGER GROUP (HONG KONG) HOLDING LIMITED | Private company limited by shares | Dissolved |
| SEGGER INVESTMENT LIMITED | Private company limited by shares | Live |
| SEGI LIMITED | Private company limited by shares | Live |
| SEGIMEX COMPANY LIMITED | Private company limited by shares | Dissolved |
| SEGLANDIS INDUSTRIAL (HONGKONG) CO., LIMITED | Private company limited by shares | Live |
| SEGMA LIMITED | Private company limited by shares | Live |
| SEGMA FORCE NETWORK TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| SEGMATEX LIMITED | Private company limited by shares | Live |
| DV SEGMENT LIMITED | Private company limited by shares | Dissolved |
| Segmento D Limited | Private company limited by shares | Live |
| Segmento Limited | Private company limited by shares | Live |
| SEGNEN ENVIRONMENT COMPANY LIMITED | | Live |
| SEGNO COMPANY LIMITED | Private company limited by shares | Dissolved |
| SEGO LIMITED | Private company limited by shares | Live |
| SEGO APPLIANCES COMPANY LIMITED | Private company limited by shares | Dissolved |
| SEGO COMPONENTS LIMITED | Private company limited by shares | Dissolved |
| SEGO CONSULT COMPANY LIMITED | Private company limited by shares | Live |
| Sego Design Limited | | Live |
| Sego Graphics Limited | Private company limited by shares | Live |
| SEGO INDUSTRIAL COMPANY LIMITED | Private company limited by shares | Live |
| SEGO LILY LIMITED | Private company limited by shares | Live |
| TEAM SEGO LIMITED | Private company limited by shares | Live |
| SEGOLAN TRADING COM LIMITED | Private company limited by shares | Dissolved |
| SEGON LIMITED | Private company limited by shares | Live |
| Segon Industry (Hongkong) Co., Limited | Private company limited by shares | Live |
| SEGON INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| SEGOO TECHNOLOGY DEVELOPMENT LIMITED | Private company limited by shares | Live |
| SEGOR LIMITED | Private company limited by shares | Live |
| SEGORO LIMITED | | Live |
| SEGOULA LIMITED | Private company limited by shares | Live |
| SEGOVIA ASSETS GROUP LIMITED | Private company limited by shares | Live |
| SEGOVIA INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| SHENZHEN SEGRE ELECTRONICS CO., LIMITED | Private company limited by shares | Live |
| SEGTON DIGITAL LIMITED | Private company limited by shares | Dissolved |
| Segue Capital Limited | Private company limited by shares | Live |
| Segue Holding HK Limited | | Live |
| SEGUE CAPITAL & INVESTMENTS LIMITED | Private company limited by shares | Live |
| SEGUE ASIA PACIFIC, Limited | Private company limited by shares | Live |
| SEGUINOT COGNAC (HONG KONG) LIMITED | Private company limited by shares | Live |
| Seguinot And Grand Sail (Hong Kong) Limited | Private company limited by shares | Live |
| SEGULA LIMITED | Private company limited by shares | Live |
| SEGURA COMPONENTS LIMITED | Private company limited by shares | Dissolved |
| Seguro Limited | Private company limited by shares | Live |
| Seguro Human Resources Limited | Private company limited by shares | Live |
| SEGWAY LIMITED | Private company limited by shares | Live |
| Segway Discovery HK Limited | Private company limited by shares | Live |