| OPER LIMITED | | Live |
| OPER SCI-TECH EDUCATION LIMITED | Private company limited by shares | Live |
| Oper Engineering Co Limited | Private company limited by shares | Live |
| OPER TECHNOLOGY LIMITED | Private company limited by shares | Live |
| OPERA LIMITED | Private company limited by shares | Live |
| ONE MAN OPERA LIMITED | Private company limited by shares | Live |
| Opera Box Limited | | Live |
| WAN MAN CHINESE OPERA ACADEMY LIMITED | Private company limited by shares | Dissolved |
| Hong Kong Children's Opera Academy Limited | Private company limited by shares | Live |
| Opera Academy of Hong Kong Limited | | Live |
| CANTONESE OPERA ACADEMY OF HONG KONG LIMITED -THE- | Company limited by guarantee | Live |
| YOUNG ACADEMY CANTONESE OPERA TROUPE COMPANY LIMITED -THE- | Company limited by guarantee | Live |
| CANTONESE OPERA ADVANCEMENT ASSOCIATION LIMITED -THE- | Company limited by guarantee | Live |
| OPERA ARTS OF MCF LIMITED | Private company limited by shares | Dissolved |
| OPERA ASIA LIMITED | Private company limited by shares | Dissolved |
| ART OF CANTONESE OPERA ASSOCIATION LIMITED | Company limited by guarantee | Live |
| Opera Ballet Limited | Private company limited by shares | Live |
| KIM SUM CANTONESE OPERA COMPANY LIMITED | Company limited by guarantee | Dissolved |
| GRAND CANTONESE OPERA LIMITED | Company limited by guarantee | Live |
| Successor of Cantonese Opera Co. Limited | | Live |
| CHA DUK CHANG CHILDREN'S CANTONESE OPERA ASSOCIATION LIMITED | Company limited by guarantee | Live |
| Spring-Time Chinese Opera Limited | Company limited by guarantee | Live |
| CITY OPERA LIMITED | Company limited by guarantee | Live |
| HONG KONG DREAM OPERA CO., LIMITED | | Live |
| OPERA OF THE NATIONS CO., LIMITED | Private company limited by shares | Live |
| Cantonese Opera Culture (International) Communication Association Limited | | Live |
| OPERA HOTEL CONSULTANT LIMITED | Private company limited by shares | Live |
| OPERA CONSULTING LIMITED | Private company limited by shares | Dissolved |
| OPERA FGF CONSULTING & TRADING LIMITED | Private company limited by shares | Dissolved |
| OPERA DEVELOPMENT FOUNDATION LIMITED | Company limited by guarantee | Live |
| HONG KONG CANTONESE OPERA DEVELOPMENT LIMITED | Company limited by guarantee | Dissolved |
| DRAGONARA CANTONESE OPERA LIMITED | Private company limited by shares | Dissolved |
| Opera Ecommerce Limited | Private company limited by shares | Live |
| OPERA ENGINEERING CONSULTING LIMITED | Private company limited by shares | Live |
| OPERA ENTERPRISE LIMITED | Private company limited by shares | Live |
| LOVE AND FAITH CANTONESE OPERA LABORATORY LIMITED | | Live |
| Opera Fashion Co., Limited | Private company limited by shares | Live |
| OPERA FINE FOOD LIMITED | Private company limited by shares | Dissolved |
| SUNBEAM CHINESE OPERA CULTURAL FUND COMPANY LIMITED | Private company limited by shares | Live |
| BEI SHENG OPERA FUND LIMITED | Company limited by guarantee | Live |
| FUNG MING CANTONESE OPERA PROMOTION LIMITED | Company limited by guarantee | Live |
| CHOR FUNG MING CANTONESE OPERA TROUPE LIMITED | Private company limited by shares | Live |
| OPERA GALERIE LIMITED | Private company limited by shares | Live |
| OPERA GALLERY LIMITED | Private company limited by shares | Live |
| OPERA GLOBAL LIMITED | Private company limited by shares | Live |
| OPERA ELECTRON APPLIANCE GROUP (CHINA) LIMITED | Private company limited by shares | Dissolved |
| OPERA AUDIO (H.K.) LIMITED | Private company limited by shares | Live Commenced dormancy on 21-Apr-2016 |
| H.K. SUNBEAM ASSOCIATION FOR THE PROMOTION OF CANTONESE OPERA LIMITED | Company limited by guarantee | Live |
| LEO OPERA CENTRE (HK) LIMITED | Private company limited by shares | Dissolved |
| OPERA TRADING COMPANY ( H.K. ) LIMITED | Private company limited by shares | Dissolved |
| Opera Holdings Limited | Private company limited by shares | Live |
| Hong Kong Cantonese Opera Limited | | Live |
| HONG KONG CANTONESE OPERA ART SQUARE LIMITED | Company limited by guarantee | Live |
| HONG KONG CANTONESE OPERA SUN WO TONG COMPANY LIMITED -THE- | Company limited by guarantee | Live |
| HONG KONG CANTONESE OPERA HOP WO TONG LIMITED | Company limited by guarantee | Dissolved |
| HONG KONG CHILDREN'S OPERA LIMITED | Company limited by guarantee | Live |
| HONG KONG CHINESE OPERA COLLEGE LIMITED | Company limited by guarantee | Dissolved |
| HONG KONG OPERA FURNITURE LIMITED | Private company limited by shares | Dissolved |
| Hong Kong Grand Opera Company Limited | Company limited by guarantee | Live |
| HONG KONG OPERA INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| OPERA HONG KONG LIMITED | Company limited by guarantee | Live |
| Hong Kong Peking Opera Limited | Company limited by guarantee | Live |
| HONG KONG OPERA PERFORMERS' ASSOCIATION LIMITED | Company limited by guarantee | Dissolved |
| HONGKONG OPERA PREVIEW LIMITED | Company limited by guarantee | Live |
| OPERA HOUSE LIMITED -THE- | Private company limited by shares | Dissolved |
| TAK FOOK OPERA HOUSE LIMITED | Company limited by guarantee | Live |
| LEE'S OPERA HOUSE LIMITED | Private company limited by shares | Dissolved |
| PALADIUM OPERA HOUSE LIMITED -THE- | Private company limited by shares | Dissolved |
| STARCLOUD OPERA HOUSE MANAGEMENT COMPANY LIMITED | Private company limited by shares | Live |
| Opera Imaging HK Limited | Private company limited by shares | Dissolved |
| GLORY CHINESE OPERA INSTITUTE LIMITED | Company limited by guarantee | Live |
| OPERA INTERNATIONAL LIMITED | Private company limited by shares | Live |
| OPERA INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| INTERNATIONAL OPERA EDUCATION SOCIETY LIMITED | Private company limited by shares | Live |
| Opera group International Holdings Limited | Private company limited by shares | Live |
| OPERA INTERNATIONAL TRADING LIMITED | Private company limited by shares | Live |
| OPERA INT.TRADING (H.K.) LIMITED | Private company limited by shares | Live |
| OPERA INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Kunqi Opera Limited | Private company limited by shares | Live |
| KWANGTUNG OPERA & MUSIC CO. LIMITED | Private company limited by shares | Live |
| HONG KONG CHILDREN'S LIGHT OPERA COMPANY LIMITED | Company limited by guarantee | Dissolved |
| TIN MA MUSIC AND OPERA ASSOCIATION LIMITED | Company limited by guarantee | Live |
| SUNNY OPERA MUSIC PRODUCTION CO. LIMITED | Private company limited by shares | Dissolved |
| CANTONESE OPERA MUSICIAN AND VOCALIST ASSOCIATION LIMITED | Company limited by guarantee | Live |
| Opera Nazionale Montessori Co., Limited | Private company limited by shares | Live |
| OPERA PATISSERIE LIMITED | Private company limited by shares | Dissolved |
| OPERA PRIMA LIMITED | Private company limited by shares | Dissolved |
| OPERA PET PRODUCT LIMITED | Private company limited by shares | Live |
| OPERA PRODUCTS LIMITED | Private company limited by shares | Live |
| KUIZHI CHINESE OPERA RECORDING COMPANY LIMITED | Private company limited by shares | Live |
| Shan Cantonese Opera Association Limited | | Live |
| SUN LAI SING CANTONESE OPERA AMUSEMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| MING CHEE SING CHINESE OPERA LIMITED | Company limited by guarantee | Dissolved |
| U Sing Pavilion Cantonese Opera Association Company Limited | Company limited by guarantee | Live |
| SING FAI CANTONESE OPERA PROMOTION ASSOCIATION LIMITED | Company limited by guarantee | Live |
| ABO CANTONESE OPERA SINGERS ASSOCIATION COMPANY LIMITED | Company limited by guarantee | Dissolved |
| OPERA SOCIETY OF HONG KONG -THE- | Company limited by guarantee | Live |
| Opera Prima Society of Hong Kong Limited | Company limited by guarantee | Live |
| Spring Opera (Hong Kong) Limited | Private company limited by shares | Live |
| RISING STAR CANTONESE OPERA TROUPE LIMITED | Private company limited by shares | Live Commenced dormancy on 12-Jan-1996 |