| HK SUSHI SELF-MADE CHINESE MEDICINE SKIN CARE PRODUCTS LIMITED | Private company limited by shares | Live |
| SelfMadeBoy Limited | Private company limited by shares | Live |
| SELFORD PROPERTIES LIMITED | Private company limited by shares | Live |
| SELF-ORGANIZATION LIMITED | Private company limited by shares | Live |
| SELFORN LIMITED | Private company limited by shares | Live |
| HONG KONG SELF-PALACE BEAUTY AND HEALTH CHAIN COMPANY LIMITED | Private company limited by shares | Dissolved |
| SELF-PORTRAIT IP LIMITED | Private company limited by shares | Live |
| SELF-PORTRAIT HK LIMITED | Private company limited by shares | Live |
| HONG KONG PERSISTENT SELF-RELIANCE FOUNDATION LIMITED | Company limited by guarantee | Live |
| Global Village Self-Rescue Alliance Committee company Limited | Private company limited by shares | Live |
| PRINCE SELF-SERVICE LAUNDRY & DRYCLEANING COMPANY, LIMITED | Private company limited by shares | Dissolved |
| HONG KONG SELF-SERVICE LAUNDRY OWNERS ASSOCIATION LIMITED | Company limited by guarantee | Dissolved |
| DAT Self-Service System (Hong Kong) Limited | Private company limited by shares | Live |
| HONGKONG HEXU SELF-SERVICE LAUNDRY CO., LIMITED | Private company limited by shares | Live |
| DAT SELF-SERVICE SYSTEM LIMITED | Private company limited by shares | Live |
| CYBER SELF-SERVICE SYSTEM LIMITED | Private company limited by shares | Dissolved |
| Z WASH SELF-SERVICE LAUNDRY (HUNG HOM) LIMITED | Private company limited by shares | Live |
| Z WASH SELF-SERVICE LAUNDRY LIMITED | Private company limited by shares | Live |
| SELFSTORASIA LIMITED | Private company limited by shares | Live |
| INSTITUTE OF CHINESE TRADITIONAL MEDICINE ODP (SELF-STUDY EXAMINATION) OF CHINA LIMITED -THE- | Company limited by guarantee | Live |
| EKTIFAA TO ENERGY SELF-SUFFICIENCY CO., LIMITED | | Live |
| ENVIRONMENTAL PROTECTION ELECTRICAL SELF-SUPPORT SYSTEM HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| SELFTICKET COMPANY LIMITED | Private company limited by shares | Dissolved |
| SELFTIMES INTERNATIONAL (H.K) CO., LIMITED | Private company limited by shares | Dissolved |
| SELFULL ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| SELFULL INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| SELFZONE LIMITED | | Live |