| Firmament (International) Limited | Private company limited by shares | Dissolved |
| Iota in Firmament Limited | | Live |
| FIRMAMENT PROPERTIES LIMITED | Private company limited by shares | Live |
| Firmamental (International) Company Limited | Private company limited by shares | Live |
| FIRMARK LIMITED | Private company limited by shares | Dissolved |
| FIRMATE LIMITED | Private company limited by shares | Dissolved |
| FIRMATE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| FIRMAX LIMITED | Private company limited by shares | Dissolved |
| FIRMAX LIMITED | Private company limited by shares | Dissolved |
| FIRMAX DEVELOPMENTS LIMITED | Private company limited by shares | Dissolved |
| FIRMAX INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| FIRMAX INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| FIRMAX INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| FIRMBASE LIMITED | Private company limited by shares | Dissolved |
| FIRMBASE LIMITED | Private company limited by shares | Dissolved |
| FIRMBASE DIGITAL CO., LIMITED | Private company limited by shares | Live |
| FIRMBASE TRADING LIMITED | Private company limited by shares | Dissolved |
| FIRMBRIDGE INTERNATIONAL ASSOCIATION LIMITED | Private company limited by shares | Dissolved |
| FIRMBRIDGE CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| FIRMCO LIMITED | Private company limited by shares | Dissolved |
| FIRMCORE ELECTRONICS TECHNOLOGY CO., LIMITED | Private company limited by shares | Live |
| FIRMENICH HONG KONG LIMITED | Private company limited by shares | Dissolved |
| FIRMENICH HONG KONG TRADING LIMITED | Private company limited by shares | Dissolved |
| Firmetal Co., Limited | Private company limited by shares | Live |
| Firmetal Group Co., Limited | Private company limited by shares | Live |
| FIRMEX LIMITED | Private company limited by shares | Dissolved |
| FIRMEX LIMITED | Private company limited by shares | Dissolved |
| FIRMEX HOLDING LIMITED | Private company limited by shares | Dissolved |
| FIRMFAITH (CHINA) COMPANY LIMITED | Private company limited by shares | Live |
| FirmGo Limited | Private company limited by shares | Live |
| FIRMGOAL LIMITED | Private company limited by shares | Dissolved |
| FIRMGROWTH LIMITED | Private company limited by shares | Dissolved |
| FIRMHEAD LIMITED | Private company limited by shares | Dissolved |
| FIRMHEART TECHNOLOGY (HK) CO., LIMITED | Private company limited by shares | Live |
| GONG DESIGN FIRM(HK) CO., LIMITED | Private company limited by shares | Live |
| FIRMIANA LIMITED | Private company limited by shares | Dissolved |
| FIRMIANA HOLDING LIMITED | Private company limited by shares | Live |
| Firmiana Investment Limited | Private company limited by shares | Live |
| Firmiana Simplex Limited | Private company limited by shares | Live |
| FIRMIC COMPANY LIMITED | Private company limited by shares | Dissolved |
| FIRMIND LIMITED | Private company limited by shares | Dissolved |
| Firmine Limited | Private company limited by shares | Live |
| FIRMING LIMITED | Private company limited by shares | Dissolved |
| FIRMING INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| FIRMINGTON LIMITED | Private company limited by shares | Dissolved |
| FIRMINO TRADING COMPANY LIMITED | Private company limited by shares | Live |
| FIRMINY CAPITAL LIMITED | Private company limited by shares | Dissolved |
| FIRMLAND LIMITED | Private company limited by shares | Dissolved |
| FIRMLAND LIMITED | Private company limited by shares | Dissolved |
| Tricor Firmley Limited | Private company limited by shares | Live |
| FIRMLINK INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| FIRMLONG LIMITED | Private company limited by shares | Dissolved |
| FIRMLOT LIMITED | Private company limited by shares | Dissolved |
| FIRMLY TEX LIMITED | Private company limited by shares | Dissolved |
| FIRMMARK LIMITED | Private company limited by shares | Dissolved |
| Firmness Limited | | Live |
| FIRMNESS ENTERPRISE COMPANY LIMITED | Private company limited by shares | Live |
| FIRMODE LIMITED | Private company limited by shares | Dissolved |
| FIRMODE (INNOVATIONS) COMPANY LIMITED | Private company limited by shares | Live |
| Firmoon Limited | | Live |
| FIRMOST LIMITED | Private company limited by shares | Live |
| FIRMOST INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| FIRMOUNT LIMITED | Private company limited by shares | Live |
| FIRM-OWNED COMPANY LIMITED | Private company limited by shares | Live |
| FIRMPLAN LIMITED | Private company limited by shares | Dissolved |
| FIRMRATE LIMITED | Private company limited by shares | Dissolved |
| HUA DE ALLIANCE OF CPA FIRMS LIMITED | Company limited by guarantee | Live |
| XI LI FOREIGN FIRMS CO., LIMITED | Private company limited by shares | Live |
| LEZHI DESIGN FIRMS HK LIMITED | Private company limited by shares | Live |
| GLOBAL CHINESE FIRMS (CHINA) LIMITED | Private company limited by shares | Live |
| Asia United Architecture Firms Limited | Private company limited by shares | Live |
| FIRMSALES LIMITED | Private company limited by shares | Dissolved |
| FIRMSON COMPANY LIMITED | Private company limited by shares | Dissolved |
| FIRMSOURCES LIMITED | Private company limited by shares | Dissolved |
| FIRMSTAR LIMITED | Private company limited by shares | Live |
| FIRMSTAR AIR-CON LIMITED | Private company limited by shares | Live |
| FIRMSTOCK LIMITED | Private company limited by shares | Live |
| FIRMSTONE SHOES CO., LIMITED | Private company limited by shares | Live |
| FIRMSTONE INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| FIRMSTUDIO LIMITED | Private company limited by shares | Live |
| FIRMSUCCESS COMPANY LIMITED | Private company limited by shares | Dissolved |
| Firmsun Limited | | Live |
| FIRMSUN INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| Firmtel Limited | Private company limited by shares | Live |
| FIRMTEX PROFESSIONAL DEVELOPMENT COMPANY LIMITED | Private company limited by shares | Live |
| FIRMTOM COMPANY LIMITED | Private company limited by shares | Dissolved |
| FIRMVIEW LIMITED | Private company limited by shares | Dissolved |
| FIRMWARE SYSTEM CO., LIMITED | Private company limited by shares | Live |
| FIRMWARE DESIGN COMPANY LIMITED | Private company limited by shares | Dissolved |
| FIRMWAY LIMITED | Private company limited by shares | Live |
| FIRMWELL LIMITED | Private company limited by shares | Dissolved |
| FIRMWELL LIMITED | Private company limited by shares | Live |
| FIRMWICK INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| FIRMWILL LIMITED | Private company limited by shares | Live |
| FIRMWILL FAR EAST LIMITED | Private company limited by shares | Live |
| FIRMWILL (HK) LIMITED | Private company limited by shares | Live |
| FIRMWILL (INTERNATIONAL) LOGISTICS LIMITED | Private company limited by shares | Live |
| FIRMWILL (INTERNATIONAL) TRANSPORTATION LIMITED | Private company limited by shares | Live |
| FIRMWILL INVESTMENTS LIMITED | Private company limited by shares | Live |
| FIRMWILL TRANSPORTATION LIMITED | Private company limited by shares | Live |