| ZHEJIANG CATHAYA ACCESSORIES CO., LIMITED | Private company limited by shares | Live |
| ZHEJIANG CATHAYA INTERNATIONAL CO., LIMITED | Private company limited by shares | Dissolved |
| CATHAY-CANADA DEVELOPMENT GROUP COMPANY LIMITED | Private company limited by shares | Dissolved |
| CATHAYLON COMPANY LIMITED | Private company limited by shares | Dissolved |
| CathayLux Limited | Private company limited by shares | Live |
| CATHAYMERIT INDUSTRIAL LIMITED | Private company limited by shares | Live |
| CathayNeon Group Limited | Private company limited by shares | Live Commenced dormancy on 22-Sep-2014 |
| Cathaysia Limited | | Live |
| CATHAYSIAN BROTHER INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| CATHAYSIAN SEGA (CHINA) INVESTMENT CO., LIMITED | Private company limited by shares | Live |
| CATHAYSTONE LIMITED | Private company limited by shares | Dissolved |
| CATHAY-TECH LIMITED | Private company limited by shares | Dissolved |
| CATHAYTRONICS LIMITED | Private company limited by shares | Dissolved |
| CATHAY-WESTERN, LIMITED | Private company limited by shares | Dissolved |
| CATHEDRAL CITY LIMITED | Private company limited by shares | Live |
| Cathedral Primary Controller Holding Limited | Private company limited by shares | Live |
| Cathedral of Glory Limited | Private company limited by shares | Live |
| Highland Cathedral Limited | Private company limited by shares | Dissolved |
| CATHEDRAL OF PRAISE LIMITED | Company limited by guarantee | Live |
| Wells Cathedral School (Hong Kong) Limited | Company limited by guarantee | Live |
| CATHEDY LIMITED | Private company limited by shares | Live |
| CATHEE DEVELOPMENT LIMITED | Private company limited by shares | Live |
| Cather Company, Limited | Private company limited by shares | Live Commenced dormancy on 05-Jun-2012 |
| CATHERALL LIMITED | Private company limited by shares | Dissolved |
| CATHERINA CHANG CONSULTING LIMITED | Private company limited by shares | Live |
| Catherine Limited | Private company limited by shares | Live |
| CATHERINE ENTERPRISE LIMITED | Private company limited by shares | Live |
| CATHERINE INVESTMENTS LIMITED | Private company limited by shares | Live |
| CATHERINE JEWELLERY COMPANY LIMITED | Private company limited by shares | Dissolved |
| CATHERINE JEWELLERY LIMITED | Private company limited by shares | Live |
| CATHERINE TRADE LIMITED | Private company limited by shares | Live |
| CATHERINEFION TRADE CO., LIMITED | Private company limited by shares | Live |
| CATHERINE'S COMPANY LIMITED | Private company limited by shares | Dissolved |
| CATHEY RICH INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| CATHEY WEALTH INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| CATHLAND COMPANY LIMITED | Private company limited by shares | Live Commenced dormancy on 19-Jan-1996 |
| HONG KONG CATHLEEN LEATHER LIMITED | Private company limited by shares | Dissolved |
| FRANCE CATHLEEN LERTHER LIMITED | Private company limited by shares | Dissolved |
| CATHLES COMPANY LIMITED | Private company limited by shares | Live |
| CATHODIC PROTECTION ASSOCIATION OF CHINA LIMITED | Public company limited by shares | Live |
| YUXI CATHODIC PROTECTION MATERIALS CO., LIMITED | Private company limited by shares | Dissolved |
| YUXI CATHODIC PROTECTION MATERIALS CO., LIMITED | Private company limited by shares | Dissolved |
| ADVENT CATHOLIC SERVICE CENTRE LIMITED | Private company limited by shares | Live |
| SHUNG TAK CATHOLIC ENGLISH COLLEGE ALUMNI ASSOCIATION LIMITED | Company limited by guarantee | Live |
| KOWLOON BAY ST. JOHN THE BAPTIST CATHOLIC PRIMARY SCHOOL MANAGEMENT COMMITTEE LIMITED | Company limited by guarantee | Dissolved |
| APOSTOLIC CATHOLIC CHURCH LIMITED | Company limited by guarantee | Live |
| HONG KONG CATHOLIC MARRIAGE ADVISORY COUNCIL -THE- | Company limited by guarantee | Live |
| HONG KONG CATHOLIC LAY MISSIONARY ASSOCIATION LIMITED | Company limited by guarantee | Live |
| CATHOLIC COMPUTER ASSOCIATION (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| CATHOLIC DIOCESE OF HONG KONG LAITY FORMATION FUND LIMITED | Company limited by guarantee | Live |
| KOREAN CATHOLIC COMMUNITY (HONG KONG) LIMITED | Company limited by guarantee | Live |
| St. Paul's Catholic Day Nursery | Company limited by guarantee | Live |
| PAX ROMANA CATHOLIC GRADUATES ASSOCIATION, HONG KONG LIMITED | Private company limited by shares | Dissolved |
| CHEUNG SHA WAN CATHOLIC SECONDARY SCHOOL ALUMNI ASSOCIATION LIMITED | Company limited by guarantee | Live |
| Po Chiu Catholic Secondary School Alumni Association Limited | Company limited by guarantee | Live |
| YUEN LONG CATHOLIC SECONDARY SCHOOL ALUMNI ASSOCIATION LIMITED | | Live |
| TSZ WAN SHAN ST. BONAVENTURE CATHOLIC PRIMARY SCHOOL MANAGEMENT COMMITTEE LIMITED | Company limited by guarantee | Dissolved |
| TUNG CHUNG CATHOLIC SCHOOL MANAGEMENT COMMITTEE LIMITED | Company limited by guarantee | Dissolved |
| KOWLOON TONG BISHOP WALSH CATHOLIC SCHOOL MANAGEMENT COMMITTEE LIMITED | Company limited by guarantee | Dissolved |
| SHEK LEI ST. JOHN'S CATHOLIC PRIMARY SCHOOL MANAGEMENT COMMITTEE LIMITED | Company limited by guarantee | Dissolved |
| JORDAN VALLEY ST. JOSEPH'S CATHOLIC PRIMARY SCHOOL MANAGEMENT COMMITTEE LIMITED | Company limited by guarantee | Dissolved |
| SAU MAU PING CATHOLIC PRIMARY SCHOOL MANAGEMENT COMMITTEE LIMITED | Company limited by guarantee | Dissolved |
| ST. ANDREW'S CATHOLIC PRIMARY SCHOOL MANAGEMENT COMMITTEE LIMITED | Company limited by guarantee | Dissolved |
| LOK WAH CATHOLIC PRIMARY SCHOOL MANAGEMENT COMMITTEE LIMITED | Company limited by guarantee | Dissolved |
| TSZ WAN SHAN CATHOLIC PRIMARY SCHOOL MANAGEMENT COMMITTEE LIMITED | Company limited by guarantee | Dissolved |
| ST. PATRICK'S CATHOLIC PRIMARY SCHOOL (PO KONG VILLAGE ROAD) MANAGEMENT COMMITTEE LIMITED | Company limited by guarantee | Dissolved |
| LAICHIKOK CATHOLIC PRIMARY SCHOOL MANAGEMENT COMMITTEE LIMITED | Company limited by guarantee | Dissolved |
| ABERDEEN ST. PETER'S CATHOLIC PRIMARY SCHOOL MANAGEMENT COMMITTEE LIMITED | Company limited by guarantee | Live |
| Tai Kok Tsui Catholic Primary School (Hoi Fan Road) Management Committee Limited | Company limited by guarantee | Dissolved |
| YAUMATI CATHOLIC PRIMARY SCHOOL (HOI WANG ROAD) MANAGEMENT COMMITTEE LIMITED | Company limited by guarantee | Dissolved |
| PUI SHING CATHOLIC SECONDARY SCHOOL ALUMNI ASSOCIATION LIMITED | Company limited by guarantee | Live |
| CATHOLIC WOMEN'S LEAGUE -THE- | Company limited by guarantee | Live |
| CATHOLICON LIMITED | Private company limited by shares | Dissolved |
| HONG KONG CATHOLICON PHARMACEUTICAL CO., LIMITED | Private company limited by shares | Dissolved |
| CATHOR LIMITED | Private company limited by shares | Dissolved |
| CATHORN LIMITED | Private company limited by shares | Dissolved |
| CATHRINE AGENCIES LIMITED | Private company limited by shares | Dissolved |
| CATHRINE FASHION LIMITED | Private company limited by shares | Dissolved |
| CATHRINE (H.K.) LIMITED | Private company limited by shares | Dissolved |
| CATHRINE INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| Cathryn Garments Co. Limited | Private company limited by shares | Live |
| CATHWAY WIN LIMITED | Private company limited by shares | Dissolved |
| CATHWELL COMPANY LIMITED | Private company limited by shares | Dissolved |
| CATHWIDE MEDICAL (HK) LIMITED | | Live |
| CATHY WAY LIMITED | Private company limited by shares | Dissolved |
| CATHY LIMITED | Private company limited by shares | Dissolved |
| CATHY TOY COMPANY LIMITED | Private company limited by shares | Dissolved |
| CATHY LEE F & B LIMITED | Private company limited by shares | Live |
| Cathy Chung Academy Limited | Private company limited by shares | Live |
| CATHY PRIVATE NURSING AGENCY LIMITED | Private company limited by shares | Live |
| CATHY ANGEL LIMITED | Private company limited by shares | Dissolved |
| CITY CATHY LIMITED | Private company limited by shares | Dissolved |
| CITY CATHY HOLDINGS LIMITED | Private company limited by shares | Live |
| CITY CATHY INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| CITY CATHY INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| CITY CATHY INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| CITY CATHY MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| CITY CATHY MARKETING LIMITED | Private company limited by shares | Dissolved |
| Cathy Princess Trade Co., Limited | Private company limited by shares | Dissolved |
| CATHY LEE CREATION COMPANY LIMITED | Private company limited by shares | Live |