| RIGAUX DOORS AND WINDOWS SYSTEM LIMITED | Private company limited by shares | Live |
| Deck Elephant Windows Doors Investment Limited | Private company limited by shares | Live |
| HK SUCHEN ENERGY-SAVING WINDOWS AND DOORS LIMITED | Private company limited by shares | Live |
| TRINITY PRO ALUMINIUM WINDOWS ENGEERING CO., LIMITED | Private company limited by shares | Live |
| HO TAT WINDOWS ENGINEERING LIMITED | Private company limited by shares | Live |
| EASY WINDOWS ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| HAUS WINDOWS ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| FU NGAI WINDOWS ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| WINDOWS OF EUROPE HONG KONG LIMITED | Private company limited by shares | Dissolved |
| WINDOWS OF CHINA CULTURAL EXPO LIMITED | Private company limited by shares | Dissolved |
| WINDOWS FASHION EXPERTISE LIMITED | Private company limited by shares | Live |
| GERMANY FORSTER SYSTEM DOORS AND WINDOWS LIMITED | Private company limited by shares | Live |
| FUTURE WINDOWS LIMITED | Private company limited by shares | Dissolved |
| GERMANY HUANGGAO DOORS AND WINDOWS SYSTEM LIMITED | Private company limited by shares | Live |
| GERMANY MIJIER DOORS AND WINDOWS SYSTEM LIMITED | Private company limited by shares | Live |
| GERMANY ORIENT SUN WINDOWS AND DOORS LIMITED | Private company limited by shares | Live |
| GERMANY YASIDA DOORS AND WINDOWS SYSTEM LIMITED | Private company limited by shares | Live |
| HK Xin Win Good Windows And Doors Co., Limited | Private company limited by shares | Live |
| GERMANY AOKADE DOORS AND WINDOWS GROUP LIMITED | Private company limited by shares | Live |
| HK KENGGU DOORS AND WINDOWS GROUP LIMITED | Private company limited by shares | Live |
| GERMANY ARNOLD DOORS AND WINDOWS GROUP LIMITED | Private company limited by shares | Dissolved |
| GERMANY LAIFUER DOORS AND WINDOWS GROUP LIMITED | Private company limited by shares | Live |
| Germany Weierde Doors & Windows Group Limited | Private company limited by shares | Live |
| GERMANY WEIERSI DOORS WINDOWS GROUP LIMITED | Private company limited by shares | Live |
| GUANGDONG YAFEI DOORS & WINDOWS LIMITED | Private company limited by shares | Live |
| GUANGZHOU HOFUL WINDOWS AND DOORS CO., LIMITED | Private company limited by shares | Live |
| GUANHAO DOORS AND WINDOWS LIMITED | Private company limited by shares | Live |
| WINDOWS (HK) LIMITED | Private company limited by shares | Dissolved |
| H.K. RUINUO DOORS WINDOWS DEVELOPMENT LIMITED | Private company limited by shares | Live |
| DINGJI DOOR WINDOWS (HK) LIMITED | Private company limited by shares | Live |
| GUANGFENG DOORS AND WINDOWS (HK) LIMITED | Private company limited by shares | Live |
| USA FOLAIKE (HK) GROUP DOORS AND WINDOWS LIMITED | Private company limited by shares | Live |
| GUTAN DOORS AND WINDOWS (HK) LIMITED | Private company limited by shares | Live |
| ASIA PACIFIC HEALTH WINDOWS (HK) LIMITED | Private company limited by shares | Dissolved |
| YINUODUN DOORS & WINDOWS INDUSTRY (HK) LIMITED | Private company limited by shares | Live |
| OUSIDUN DOORS AND WINDOWS (HK) LIMITED | Private company limited by shares | Live |
| AUDMAN (H.K.) WINDOWS & TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Sanfei Di Ni Windows and Doors (HK) Technology Limited | Private company limited by shares | Live |
| HONG KONG ALUMINIUM WINDOWS ENGINEERING CO. LIMITED | Private company limited by shares | Live |
| Deyi (Hong Kong) Doors and Windows Company Limited | | Live |
| HONG KONG IKA DOORS WINDOWS LIMITED | Private company limited by shares | Live |
| HONG KONG LAI WEI SI DUN WINDOWS INDUSTRY LIMITED | Private company limited by shares | Dissolved |
| Hong Kong Peace Windows Technology Limited | Private company limited by shares | Live |
| HONGKONG ANGEXUAN DOORS AND WINDOWS LIMITED | Private company limited by shares | Live |
| HONGKONG BOLAITE INTERNATIONAL WINDOWS AND DOORS LIMITED | Private company limited by shares | Live |
| HONGKONG JIAYIXUAN DOORS AND WINDOWS CO., LIMITED | Private company limited by shares | Live |
| HONGKONG WISDOM TO WIN THE WINDOWS SYSTEM CO., LIMITED | Private company limited by shares | Dissolved |
| HONGKONG VIRGONI WINDOWS AND DOORS CO., LIMITED | Private company limited by shares | Dissolved |
| Hongkong Zestop Doors And Windows Co., Limited | Private company limited by shares | Live |
| Hongkong Daiweisi Doors And Windows Limited | Private company limited by shares | Live |
| Hongkong Dersika international doors windows Limited | Private company limited by shares | Live |
| HONGKONG OUYI DOORS AND WINDOWS CO. LIMITED | Private company limited by shares | Live |
| HongKong Singular Smart Windows And Doors Co, Limited | Private company limited by shares | Live |
| Hongkong Feiteng International Doors And Windows Hardware Systems Limited | Private company limited by shares | Live |
| GERMANY OUNIDUN DOORS AND WINDOWS HOME FURNISHING (HONGKONG) INT'L LIMITED | Private company limited by shares | Live |
| HongKong Jia Yun Doors And Windows Manufacturing Co., Limited | Private company limited by shares | Live |
| WINDOWS PAPER PRINTING (HONGKONG) CO., LIMITED | Private company limited by shares | Live |
| HONGKONG NEW WINDOWS TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| HONGKONG XUCHIER DOORS AND WINDOWS SYSTEM LIMITED | Private company limited by shares | Live |
| Shenzhen Huijunxin Doors & Windows Co., Limited | Private company limited by shares | Live |
| HK YONGHE HANGPAI INTELLIGENCE DOORS WINDOWS LIMITED | Private company limited by shares | Live |
| INTERNATIONAL DOORS WINDOWS AND FENCE ASSOCIATION LIMITED | Company limited by guarantee | Live |
| HK SENBONUO INTERNATIONAL DOORS AND WINDOWS CO., LIMITED | Private company limited by shares | Live |
| HK XINYA (INTERNATIONAL) DOORS & WINDOWS CO., LIMITED | Private company limited by shares | Live |
| HK BOLV DOORS AND WINDOWS INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| HK JINTAOYU DOORS AND WINDOWS FITTINGS INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| Germany KVS Windows Aluminum International Limited | Private company limited by shares | Live |
| GERMANY DE NU SI KE INTERNATIONAL WINDOWS GROUP CO., LIMITED | Private company limited by shares | Live |
| Silver Link International Doors & Windows Limited | Private company limited by shares | Live |
| WINDOWS POWER INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Live |
| INTERNATIONAL POWER WINDOWS COMPANY LIMITED | Private company limited by shares | Live |
| HK KANUO INT'L DOORS AND WINDOWS LIMITED | Private company limited by shares | Dissolved |
| HK JI SHENG WINDOWS AND DOORS INT'L LIMITED | Private company limited by shares | Live |
| GERMANY YBL INT'L DOORS AND WINDOWS GROUP LIMITED | Private company limited by shares | Live |
| GERMANY MSD INT'L DOORS AND WINDOWS GROUP LIMITED | Private company limited by shares | Live |
| GERMANY DIMEITE (INT'L) DOORS AND WINDOWS TECHNOLOGY LIMITED | Private company limited by shares | Live |
| GERMANY SINAI DOORS & WINDOWS INT'L LIMITED | Private company limited by shares | Live |
| GERMANY OUSHIRUI INT'L DOORS WINDOWS LIMITED | Private company limited by shares | Live |
| NEW WINDOWS (INT'L) CULTURE SPREAD LIMITED | Private company limited by shares | Dissolved |
| IUCAI DOORS AND WINDOWS SYSTEM COMPANY LIMITED | Private company limited by shares | Live |
| FOSHAN JINKAIXUAN HK DOORS WINDOWS CO., LIMITED | Private company limited by shares | Live |
| GERMANY JINLAIDE DOORS AND WINDOWS SYSTEM LIMITED | Private company limited by shares | Live |
| KADI DOORS AND WINDOWS (HONGKONG) LIMITED | Private company limited by shares | Live |
| GERMANY KAMSIMON WINDOWS & DOORS CURTAIN WALL SYSTEM LIMITED | Private company limited by shares | Live |
| KING HOME WINDOWS (HK) CO., LIMITED | Private company limited by shares | Live |
| WINDOWS KING CONSTRUCTION LIMITED | Private company limited by shares | Dissolved |
| Yi King (H.K.) Door & Windows Company Limited | Private company limited by shares | Dissolved |
| GUANGDONG LEJU DOORS & WINDOWS LIMITED | Private company limited by shares | Live |
| WINDOWS LOGISTICS (HK) CO., LIMITED | Private company limited by shares | Live |
| ALLWELL WINDOWS MAINTENANCE LIMITED | Private company limited by shares | Dissolved |
| GERMANY MAQNI DOORS AND WINDOWS SYSTEMS LIMITED | Private company limited by shares | Live |
| WINDOWS MEDIA LIMITED | Private company limited by shares | Dissolved |
| USA MOSQUITO-NET WINDOWS COMPANY LIMITED | Private company limited by shares | Dissolved |
| MULTI WINDOWS LIMITED | Private company limited by shares | Dissolved |
| ITALY MUSIDUN DOORS AND WINDOWS GROUP LIMITED | Private company limited by shares | Live |
| OSLT DOORS & WINDOWS CO., LIMITED | Private company limited by shares | Live |
| GERMANY OUGONG DOORS & WINDOWS LIMITED | Private company limited by shares | Live |
| PAIMEI DOORS AND WINDOWS LIMITED | Private company limited by shares | Live |
| PANPAN WINDOWS AND DOORS LIMITED | | Live |
| HK XINBAODING DOORS AND WINDOWS PROJECT CO., LIMITED | Private company limited by shares | Live |