| TSNIM TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| Tsnode Limited | Private company limited by shares | Live |
| CHAN WING CHAU TSO, LIMITED | Private company limited by shares | Dissolved |
| Ching Yeung (Fu Tso) Limited | Private company limited by shares | Live |
| HONG KONG LO WU YUEN'S (TSO TONG) PROPERTY MANAGEMENT LIMITED | Private company limited by shares | Live |
| T-SOAR INDUSTRY CO., LIMITED | Private company limited by shares | Live |
| TSOARING ELECTRONICS (HONG KONG) LIMITED | Private company limited by shares | Live |
| Fan Yang TSOB (HK) Limited | Private company limited by shares | Live |
| TSOFT LIMITED | Private company limited by shares | Live |
| YIL TSOI COMPANY LIMITED | Private company limited by shares | Dissolved |
| FU TSOI LIMITED | Private company limited by shares | Dissolved |
| C. Y. Tsoi & Co. Limited | Private company limited by shares | Live |
| TAK TSOI COMPANY LIMITED | Private company limited by shares | Live |
| TSOI TAK ST LIMITED | Private company limited by shares | Live |
| TSOI & TSOI CPA LIMITED | Private company limited by shares | Live |
| Tsoi Yee Company Limited | Private company limited by shares | Live |
| ALLIOTT TSOI HA CPA LIMITED | Private company limited by shares | Dissolved |
| ALLIOTT, TSOI CPA LIMITED | Private company limited by shares | Live |
| DR TSOI & ASSOCIATES LIMITED | Private company limited by shares | Live |
| TSOI HON YUE BROS. LTD. | Private company limited by shares | Dissolved |
| SAN TSOI FINANCE LIMITED | Private company limited by shares | Dissolved |
| HANG TSOI LIMITED | Private company limited by shares | Dissolved |
| TSOI TAK INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| TSOI SHENG INVESTMENT CO. LIMITED | Private company limited by shares | Live |
| KEITH TSOI COMPANY LIMITED | Private company limited by shares | Live |
| M.P. TSOI COMPANY LIMITED | Private company limited by shares | Dissolved |
| Sisi Tsoi Limited | Private company limited by shares | Live |
| S.L. TSOI & COMPANY, LIMITED | Private company limited by shares | Dissolved |
| S.W. TSOI CAPITAL LIMITED | Private company limited by shares | Live |
| Wang Tsoi Ink Company Limited | Private company limited by shares | Live |
| TSOIKO GROUP LIMITED | Private company limited by shares | Live |
| QUEEN TSOI'S DEVELOPMENT CO., LIMITED | Private company limited by shares | Live |
| TSOI'S GROUP LIMITED -THE- | Private company limited by shares | Dissolved |
| TSOI'S PAINTING COMPANY LIMITED | Private company limited by shares | Live |
| TSOI'S BEAUTY PRODUCTS LIMITED | Private company limited by shares | Dissolved |
| TSOI'S PLASTIC PRODUCTS LIMITED | Private company limited by shares | Dissolved |
| TSOI'S BROTHERS TRADING LIMITED | Private company limited by shares | Live |
| LOK LOK TSOK TOYS & CANDY COMPANY LIMITED | Private company limited by shares | Dissolved |
| T&SOLAR COMPANY LIMITED | Private company limited by shares | Live |
| TSO-LING INDUSTRY COMPANY LIMITED | Private company limited by shares | Dissolved |
| T-SOLUTION LIMITED | Private company limited by shares | Live |
| T-SOLUTION (HK) CO., LIMITED | Private company limited by shares | Dissolved |
| T-Solution (HongKong) Co., Limited | Private company limited by shares | Dissolved |
| TAK KEE TSON LIMITED | Private company limited by shares | Dissolved |
| Tson Limited | Private company limited by shares | Live |
| TSONG LIMITED | Private company limited by shares | Live |
| TSONGMEI LIMITED | Private company limited by shares | Dissolved |
| HOU TSOON ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| TSO'S TAT SHING PLASTIC COMPANY LIMITED | Private company limited by shares | Live |
| T-Source Limited | Private company limited by shares | Live |
| TSOY CO., LIMITED | Private company limited by shares | Live |
| TSOY FAN INVESTMENT CO., LIMITED | Private company limited by shares | Live |
| GBA TSpace Industry (HK) Group Limited | | Live |
| TSPEC SERVO LIMITED | Private company limited by shares | Dissolved |
| T-SPICY COMPANY LIMITED | Private company limited by shares | Live |
| TSPIRIT TECHNOLOGY LIMITED | Private company limited by shares | Live |
| TSPMS Limited | Private company limited by shares | Live |
| T-SPOON LIMITED | Private company limited by shares | Live |
| T.SPORTS LIMITED | Private company limited by shares | Live |
| T-Spring Limited | Private company limited by shares | Live |
| TSPRWING GLOBAL EXPORT LIMITED | Private company limited by shares | Live |
| CHINA TSQB Limited | | Live |
| T-SQUARE LIMITED | Private company limited by shares | Live |
| TSRC (Hong Kong) Limited | Private company limited by shares | Live |
| TSRED ANIME CREATION CO. LIMITED | Private company limited by shares | Dissolved |
| T.S.S. LIMITED | Private company limited by shares | Dissolved |
| TSSINGLIAN TRADING CO., LIMITED | | Live |
| TSST LIMITED | Private company limited by shares | Live |
| XIN DAU JI (TST) LIMITED | Private company limited by shares | Live |
| HFC (TST) LIMITED | Private company limited by shares | Live |
| S. A. M. (TST) Limited | Private company limited by shares | Live |
| LE BAI JIA (TST) LIMITED | Private company limited by shares | Live |
| One & Associates Valuers (TST) Limited -The- | Private company limited by shares | Live |
| MAY MOON (TST) ASSOCIATION LIMITED | Company limited by guarantee | Dissolved |
| Bastet Beauty Centre (TST) Limited | Private company limited by shares | Live |
| PHYSICAL HEALTH CENTRE (TST) LIMITED | Private company limited by shares | Live |
| Come Come Restaurant (TST) Limited | Private company limited by shares | Live |
| Chotto Concept (TST) Limited | | Live |
| CRUST (TST) LIMITED | | Live |
| HK.DNA (T.S.T.) DIAGNOSTICS CENTRE LIMITED | Private company limited by shares | Live |
| I Cow Catering (TST East) Limited | | Live |
| Wang Ka Employment Centre (TST) Limited | Private company limited by shares | Live |
| Shh (TST) Group Limited | | Live |
| HALEWINNER (TST 2) COMPANY LIMITED | Private company limited by shares | Dissolved |
| HALEWINNER (TST 3) COMPANY LIMITED | Private company limited by shares | Dissolved |
| KPI Health (TST) Limited | Private company limited by shares | Dissolved |
| IBO Jewelry (TST) Company Limited | Private company limited by shares | Live |
| BE A LADY (TST) LIMITED | Private company limited by shares | Dissolved |
| LUNG DIM SUM (TST) CATERING LIMITED | | Live |
| Miioskin (TST) Company Limited | Private company limited by shares | Live |
| MING'S (TST) LIMITED | Private company limited by shares | Live |
| Okonomiyaki (TST) Limited | Private company limited by shares | Live |
| Dr PAIN (TST) LIMITED | Private company limited by shares | Live |
| PHO24 (TST) LIMITED | Private company limited by shares | Live |
| POSTCOLLECTIONHK (TST) LIMITED | Private company limited by shares | Live |
| QMIX (TST) LIMITED | Private company limited by shares | Dissolved |
| KAI KEE (TST) RESTAURANT LIMITED | Private company limited by shares | Live |
| AMG (TST SPC) LIMITED | Private company limited by shares | Live |
| SQUINA BEAUTY & FITNESS CENTRE (TST) LIMITED | Private company limited by shares | Dissolved |
| T.S.T. TRANSOCEAN SYSTEM TRANSPORT LIMITED | Private company limited by shares | Live |