| WONDERFUL COSMOS LIMITED | Private company limited by shares | Live |
| WONDERFUL COSMOS INVESTMENT LIMITED | Private company limited by shares | Live |
| COSMOS WOODWORKS COMPANY LIMITED | Private company limited by shares | Dissolved |
| COSMOS WORTH COMPANY LIMITED | Private company limited by shares | Live |
| COSMOS WORTH INVESTMENT LIMITED | Private company limited by shares | Live Commenced dormancy on 03-Jun-2008 |
| Cosmos Yarn Limited | Private company limited by shares | Live |
| COSMOS YEAR LIMITED | Private company limited by shares | Dissolved |
| COSMOS YING LUN (HONG KONG) LIMITED | Private company limited by shares | Live |
| COSMOS YORK LIMITED | Private company limited by shares | Live |
| CosmoSci Limited | Private company limited by shares | Live |
| COSMOS.COM LIMITED | Private company limited by shares | Live |
| Cosmose Limited | Private company limited by shares | Live |
| COSMOSET LIMITED | Private company limited by shares | Dissolved |
| COSMOSFIT LIMITED | Private company limited by shares | Dissolved |
| COSMOSFRONT LIMITED | Private company limited by shares | Live |
| COSMOSFUND LIMITED | Private company limited by shares | Dissolved |
| COSMOSHERO LIMITED | Private company limited by shares | Dissolved |
| COSMOSIS INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| COSMOS-K COMPANY LIMITED | Private company limited by shares | Dissolved |
| COSMOSKY MICROBE AND AGRICULTURAL TECHNOLOGY INVESTMENT COMPANY (H.K.) LIMITED | Private company limited by shares | Dissolved |
| COSMOSNILA LIMITED | Private company limited by shares | Live |
| COSMO-SPOT LIMITED | Private company limited by shares | Dissolved |
| CosmoSpring Limited | | Live |
| COSMOS-RAY MACHINERY ELECTRONICS CO., LIMITED | Private company limited by shares | Live |
| COSMOSS VU LIMITED | Private company limited by shares | Live |
| COSMOSS GROUP LIMITED | Private company limited by shares | Live |
| COSMOSTAR COMPANY LIMITED | Private company limited by shares | Dissolved |
| COSMOSTAR DEVELOPMENT LIMITED | Private company limited by shares | Live |
| Cosmostar Hong Kong Limited | Private company limited by shares | Live |
| Cosmostar Tech Limited | Private company limited by shares | Live |
| Cosmostation Limited | Private company limited by shares | Live |
| Cosmosum Limited | Private company limited by shares | Live |
| COSMOSUPPLYLAB LIMITED | Private company limited by shares | Live |
| COSMOSWEALTH LIMITED | Private company limited by shares | Dissolved |
| COSMOTECH LIMITED | Private company limited by shares | Dissolved |
| COSMOTECH DG LIMITED | Private company limited by shares | Live |
| SGC Cosmotech Company Limited | Private company limited by shares | Live |
| COSMOTECH SOLUTIONS LIMITED | Private company limited by shares | Live |
| COSMO-TECHNOLOGY LIMITED | Private company limited by shares | Live |
| CosmoTel Network Limited | Private company limited by shares | Live |
| COSMOTOR (H.K.) CO., LIMITED | Private company limited by shares | Dissolved |
| COSMOTRADE ASIA LIMITED | Private company limited by shares | Live |
| COSMOTRADING GROUP LIMITED | Private company limited by shares | Live |
| COSMOTREE (MEE WOO) INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| COSMOTRON ENTERPRISES LIMITED | Private company limited by shares | Live |
| COSMOVISION CO., LIMITED | Private company limited by shares | Live |
| COSMOWATCH (ASIA PACIFIC) LIMITED | Private company limited by shares | Live |
| COSMOWATER JAPAN CO., LIMITED | Private company limited by shares | Live |
| COSMO-WAY LIMITED | Private company limited by shares | Dissolved |
| COSMOWINE LIMITED | Private company limited by shares | Live |
| COSMOWORLD LIMITED | Private company limited by shares | Live |
| COSMOX GROUP LIMITED | | Live |
| COSMOZELO INTERNATIONAL LIMITED | Private company limited by shares | Live |
| COSMPFAB IMP.&EXP.CO., LIMITED | Private company limited by shares | Dissolved |
| COSN HK LIMITED | Private company limited by shares | Live |
| COSNATA LIMITED | Private company limited by shares | Dissolved |
| COSNAV LIMITED | Private company limited by shares | Dissolved |
| Cosnet Co. Limited | Private company limited by shares | Dissolved |
| HONG KONG COSNEY TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| COSO ELECTRONICS CO., LIMITED | Private company limited by shares | Dissolved |
| COSO ELECTRONICS CO., LIMITED | Private company limited by shares | Live |
| COSO FASHION LIMITED | Private company limited by shares | Live |
| COSO (HK) NETWORK TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Hongkong Coso Technology Co., Limited | Private company limited by shares | Live |
| COSO INTERNATIONAL (HK) CO., LIMITED | Private company limited by shares | Live |
| COSO ELECTRONIC (INTERNATIONAL) HONGKONG COMPANY LIMITED | Private company limited by shares | Dissolved |
| COSO ELECTRONIC TECH CO., LIMITED | Private company limited by shares | Live |
| COSOC Limited | Private company limited by shares | Live |
| H.K COSOCAS INT'L DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| Cosodine Company Limited | Private company limited by shares | Dissolved |
| COSOLUTIONS CONSULTING INC. LIMITED | Private company limited by shares | Live |
| COSOMAN LIMITED | Private company limited by shares | Live |
| COSOMIC TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| COSON COMPANY LIMITED | Private company limited by shares | Dissolved |
| COSONIC LIMITED | Private company limited by shares | Live |
| COSONIC ELECTRONICS COMPANY LIMITED | Private company limited by shares | Live |
| CO-SONIC INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| COSONIC (HK) TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Panda Cosortium Co., Limited | Private company limited by shares | Live |
| COSOUL TECHNOLOGIES COMPANY LIMITED | Private company limited by shares | Live |
| CO-SOURCE LIMITED | Private company limited by shares | Dissolved |
| COS-PAC COMPANY LIMITED | Private company limited by shares | Dissolved |
| SUNRISE COSPACK LIMITED | Private company limited by shares | Live |
| CO-SPARK LIMITED | Private company limited by shares | Dissolved |
| CO-SPARK INVESTMENT LIMITED | Private company limited by shares | Live |
| Cospearl Lake Maritime Limited | Private company limited by shares | Live |
| COSPEED TECHNOLOGIES (HK) LIMITED | Private company limited by shares | Live |
| COSPENA (CHINA) LIMITED | Private company limited by shares | Dissolved |
| HK COSPER CO., LIMITED | Private company limited by shares | Live |
| COSPER INTERNATIONAL CO., LIMITED | Private company limited by shares | Dissolved |
| COSPIN LIMITED | Private company limited by shares | Dissolved |
| CO-SPIN PROPERTIES LIMITED | Private company limited by shares | Dissolved |
| Cospin Trading Limited | Private company limited by shares | Live |
| COSPL MACHINERY MANUFACTURING CO., LIMITED | Private company limited by shares | Live |
| COSPLAYPOWER LIMITED | Private company limited by shares | Live |
| CosplayWig Company Limited | Private company limited by shares | Live Commenced dormancy on 03-May-2016 |
| CO-SPREAD LIMITED | Private company limited by shares | Dissolved |
| COSPRINNOV LIMITED | Private company limited by shares | Live |
| COSRAY (HONGKONG) LIMITED | Private company limited by shares | Live Commenced dormancy on 11-Apr-2016 |
| COSRICA DESIGNS LIMITED | Private company limited by shares | Dissolved |