| Ultra Window Solutions Limited | Private company limited by shares | Live |
| UNIQUE WINDOW SYSTEMS LIMITED | Private company limited by shares | Live |
| VERTEX WINDOW FILM COMPANY LIMITED | | Live |
| KA WO ALUMINUM WINDOW & WATERPROOFING LIMITED | Private company limited by shares | Live |
| CHI LIK WINDOW WORKS COMPANY LIMITED | Private company limited by shares | Dissolved |
| STANDARD METAL WINDOW WORKS LIMITED | Private company limited by shares | Dissolved |
| LES WINDOWARTS FACTORY LIMITED | Private company limited by shares | Dissolved |
| V WINDOWS LIMITED | Private company limited by shares | Dissolved |
| AMS WINDOWS LIMITED | Private company limited by shares | Dissolved |
| YY WINDOWS HK PTY LIMITED | Private company limited by shares | Live |
| windows Limited | Private company limited by shares | Live |
| ASF Windows HK Limited | Private company limited by shares | Live |
| HK AIDEWANSI DOORS AND WINDOWS SYSTEM LIMITED | Private company limited by shares | Live |
| HK AIDINGBAO DOORS AND WINDOWS LIMITED | Private company limited by shares | Live |
| Allstyle Doors & Windows Co. Limited | Private company limited by shares | Live |
| BUILDERS ALUMINIUM WINDOWS LIMITED | Private company limited by shares | Dissolved |
| HOP LOY ALUMINIUM WINDOWS AND DOORS LIMITED | Private company limited by shares | Live |
| CHASE ALUMINIUM WINDOWS ENGINEERING COMPANY LIMITED | Private company limited by shares | Live |
| Trinity Aluminium Windows Engineering Co. Limited | Private company limited by shares | Live |
| Musical Aluminium Windows Engineering Limited | Private company limited by shares | Live |
| WINDOWS OF AMERICA LIMITED | Private company limited by shares | Dissolved |
| AMOY METAL WINDOWS LIMITED | Private company limited by shares | Dissolved |
| WINDOWS OF ASIA LIMITED | Private company limited by shares | Live |
| TRADE WINDOWS ASIA LIMITED | Private company limited by shares | Live |
| GLASSCENE (AUSTRALIA) WINDOWS CO., LIMITED | Private company limited by shares | Live |
| HK BEESKE WINDOWS AND DOORS LIMITED | Private company limited by shares | Live |
| HK Whaley Bonte Doors And Windows Limited | Private company limited by shares | Live |
| BRIGHTER HOME DOORS & WINDOWS CONTRACTORS LIMITED | Private company limited by shares | Live |
| Broad Windows & Facade Limited | Private company limited by shares | Live |
| Buildings Aluminium Windows Engineering Company Limited | Private company limited by shares | Live |
| GUANGZHOU BUILDNICE DOORS AND WINDOWS CO., LIMITED | Private company limited by shares | Live |
| Hang Cheong Windows Engineering Company Limited | Private company limited by shares | Live |
| CHINA WINDOWS LIMITED | Private company limited by shares | Live |
| ANZ WINDOWS Co., Limited | Private company limited by shares | Live |
| Alufront Windows & Doors Co., Limited | Private company limited by shares | Live |
| ON TSUEN ALUMINIUM WINDOWS ENGINEERING CO., LIMITED | Private company limited by shares | Live |
| Hua Yue Doors And Windows Co., Limited | Private company limited by shares | Live |
| RS WINDOWS AND DOORS CO., LIMITED | | Live |
| AMYSUNSHINE WINDOWS AND DOORS CO., LIMITED | Private company limited by shares | Live |
| JJAM Doors & Windows Co., Limited | Private company limited by shares | Live |
| EXCELLENCE WINDOWS FASHIONS CO., LIMITED | Private company limited by shares | Live |
| GERMANY KLM DOORS AND WINDOWS CO., LIMITED | Private company limited by shares | Live |
| GERMANY WSD DOORS AND WINDOWS CO., LIMITED | Private company limited by shares | Live |
| Germany Shield Doors And Windows Co., Limited | Private company limited by shares | Live |
| Germany Xu Bo Te Doors & Windows Systems Co., Limited | Private company limited by shares | Live |
| Germany Weite Doors & Windows Co., Limited | Private company limited by shares | Live |
| GERMANY XINYUBO WINDOWS CO., LIMITED | Private company limited by shares | Live |
| WINDOWS HOLDING CO., LIMITED -THE- | Private company limited by shares | Dissolved |
| KAM MOON METAL WINDOWS CO., LIMITED | Private company limited by shares | Dissolved |
| WEISS SHIELD DOORS AND WINDOWS CO., LIMITED | Private company limited by shares | Live |
| Windows Destined Technology Co., Limited | Private company limited by shares | Live |
| Jianlang Doors and Windows Technology Co., Limited | | Live |
| WINDOWS POWER TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| HK TONGJIE WINDOWS DOORS CO., LIMITED | Private company limited by shares | Live |
| WINDOW'S CLOCK & WATCH CO., LIMITED | Private company limited by shares | Live |
| XIEHE WINDOWS CO., LIMITED | Private company limited by shares | Dissolved |
| YOUYAGE DOORS & WINDOWS CO., LIMITED | Private company limited by shares | Live |
| Foshan Zestop Doors & Windows Co., Limited | Private company limited by shares | Live |
| WINDOWS CONSULTANT LIMITED | Private company limited by shares | Dissolved |
| WINDOWS OF ASIA CONSULTING COMPANY LIMITED | Private company limited by shares | Dissolved |
| CONTEMPORARY DOORS & WINDOWS SYSTEM (ASIA PACIFIC) TECHNOLOGY ASSOCIATION LIMITED | Company limited by guarantee | Dissolved |
| SHAM TAK WINDOWS AND CONTRACTING COMPANY LIMITED | Private company limited by shares | Live |
| SUN WAH ALUMINIUM WINDOWS & CURTAIN WALL COMPANY LIMITED | Private company limited by shares | Dissolved |
| GERMANY ZHOUSIDUN DOOR AND WINDOWS ALUMINUM LIMITED | Private company limited by shares | Live |
| HK CHENG JIA WINDOWS & DOORS LIMITED | Private company limited by shares | Live |
| FENGTIAN DOORS & WINDOWS SYSTEMS LIMITED | Private company limited by shares | Live |
| FIRST WINDOWS & DOORS LIMITED | Private company limited by shares | Live |
| 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 |