| WESTOST LIMITED | Private company limited by shares | Dissolved |
| WESTOWER TECHNOLOGY LIMITED | Private company limited by shares | Live |
| WESTOWN LIMITED | Private company limited by shares | Live |
| WESTPAC LIMITED | Private company limited by shares | Dissolved |
| WESTPAC LIMITED | Private company limited by shares | Live |
| WestPac Capital Investment Co., Limited | Private company limited by shares | Live |
| WESTPAC TECHNOLOGY COMPUTERS LIMITED | Private company limited by shares | Dissolved |
| WESTPAC DIGITAL LIMITED | Private company limited by shares | Live |
| WESTPAC ELECTRONICS LIMITED | Private company limited by shares | Live |
| WESTPAC ENERGY (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| WESTPAC (HK) LIMITED | Private company limited by shares | Live |
| WESTPAC FINANCE (HK) LIMITED | Private company limited by shares | Live |
| Westpac Holdings (Group) Limited | Private company limited by shares | Dissolved |
| WESTPAC INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| WESTPAC LEASING ASIA LIMITED | Private company limited by shares | Dissolved |
| WESTPAC PRODUCTS COMPANY LIMITED | Private company limited by shares | Live |
| WESTPAC RESOURCES COMPANY LIMITED | Private company limited by shares | Live |
| WESTPAC SALES LIMITED | Private company limited by shares | Dissolved |
| WESTPAC ASIA (SECURITIES) LIMITED | Private company limited by shares | Dissolved |
| WESTPAC SECURITIES (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| WESTPAC TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| WESTPAC TECHNOLOGY LIMITED | Private company limited by shares | Live |
| WESTPAC SPORTS TECHNOLOGY CO. LIMITED | Private company limited by shares | Live |
| WESTPAC WATER TREATMENT (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| WESTPACK LIMITED | Private company limited by shares | Live |
| WESTPAK INTERNATIONAL LIMITED | Private company limited by shares | Live |
| WESTPARK (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| WESTPEX LIMITED | Private company limited by shares | Live |
| WESTPHAL LIMITED | Private company limited by shares | Dissolved |
| WESTPHAL HK LIMITED | Private company limited by shares | Dissolved |
| WESTPHALIA MINING & TRADING LIMITED | Private company limited by shares | Live |
| WESTPINE LIMITED | Private company limited by shares | Dissolved |
| WESTPINE LIMITED | Private company limited by shares | Live |
| WESTPINE INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| WestPlus HK Technology Limited | | Live |
| WESTPOINT LIMITED | Private company limited by shares | Dissolved |
| Westpoint Investment Company Limited | Private company limited by shares | Dissolved |
| WESTPOINT TEXTILES LIMITED | Private company limited by shares | Dissolved |
| WESTPOOL LIMITED | Private company limited by shares | Dissolved |
| WESTPORT COMPANY LIMITED | Private company limited by shares | Dissolved |
| Westport Limited | Private company limited by shares | Live |
| Hong Kong Westport Trading Co., Limited | Private company limited by shares | Live |
| WESTPORT TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| Westport Communications Limited | Private company limited by shares | Dissolved |
| WESTPORT DEVELOPMENT LIMITED | Private company limited by shares | Dissolved |
| GRAND WESTPORT LIMITED | Private company limited by shares | Live |
| WESTPORT GROUP, LIMITED -THE- | Private company limited by shares | Dissolved |
| Westport Innovations (HK) Holdings Limited | Private company limited by shares | Live |
| Westport Innovations (Hong Kong) Limited | Private company limited by shares | Live |
| WESTPORT TECHNOLOGY (HONGKONG) CO., LIMITED | Private company limited by shares | Live |
| WESTPORT PACIFIC INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| WESTPORT INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| WESTPORT SHIPPING LIMITED | Private company limited by shares | Dissolved |
| WESTPOST INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| WESTPOW LIMITED | Private company limited by shares | Live |
| SHENZHEN WESTPOWER TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| WESTPRESS LIMITED | Private company limited by shares | Dissolved |
| WESTPRIDE LIMITED | Private company limited by shares | Dissolved |
| WESTPRINCE LIMITED | Private company limited by shares | Dissolved |
| WESTRADING LIMITED | Private company limited by shares | Live |
| WESTRADING GROUP (H.K.) CO., LIMITED | Private company limited by shares | Live |
| WESTRAIN LIMITED | Private company limited by shares | Dissolved |
| WESTRAL INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Westrand Investment & Trading Co., Limited | Private company limited by shares | Live |
| Westray Company Limited | Private company limited by shares | Live |
| WESTRAY INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| WESTREE LIMITED | Private company limited by shares | Dissolved |
| Westrex Hong Kong Limited | Private company limited by shares | Live |
| WESTRICH COMPANY LIMITED | Private company limited by shares | Dissolved |
| WESTRIDES LIMITED | Private company limited by shares | Dissolved |
| WESTRIFE INDUSTRIAL LIMITED | Private company limited by shares | Live |
| WESTRIM CONSULTING LIMITED | Private company limited by shares | Dissolved |
| WESTRIM CRAFTS (HONG KONG) LIMITED | Private company limited by shares | Live |
| WestRim Nominees Limited | Private company limited by shares | Live |
| BROTHERS WESTRIVER COMPANY LIMITED | Private company limited by shares | Dissolved |
| WESTRIX ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| WestRoadSouth Limited | Private company limited by shares | Live |
| WestRock MWV Hong Kong Limited | Private company limited by shares | Live |
| WestRock Hong Kong Limited | Private company limited by shares | Live |
| WESTROCK RESOURCES LIMITED | Private company limited by shares | Dissolved |
| WESTROM-DTB, LIMITED | Private company limited by shares | Live |
| WESTRON LIMITED | Private company limited by shares | Dissolved |
| WESTRON COMPANY LIMITED | Private company limited by shares | Live |
| WESTRON GROUP LIMITED | Private company limited by shares | Live |
| WESTRONG ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| WESTRONG INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| WESTRONIX LIMITED | Private company limited by shares | Dissolved |
| WESTROOPER ENTERPRISES LIMITED | Private company limited by shares | Live |
| WESTROY LIMITED | Private company limited by shares | Dissolved |
| HONG KONG WESTRY SANITARY WARE LIMITED | Private company limited by shares | Live |
| WEST'S NAURU LIMITED | Private company limited by shares | Dissolved |
| WESTSCOPE LIMITED | Private company limited by shares | Dissolved |
| WESTSCORE LIMITED | Private company limited by shares | Live |
| WESTSDAY LIMITED | Private company limited by shares | Dissolved |
| Westsee (HK) Company Limited | | Live |
| WESTSHIELD DEVELOPMENT LIMITED | Private company limited by shares | Live |
| WESTSHIELD TRADE LIMITED | Private company limited by shares | Live |
| WESTSIB TRADE CO., LIMITED | Private company limited by shares | Live |
| WESTSIDE LIMITED | Private company limited by shares | Dissolved |
| WESTSIDE NYC LIMITED | Private company limited by shares | Live |