| C.I.R. COMPANY LIMITED | Private company limited by shares | Dissolved |
| C.I.R. General Agency Limited | Private company limited by shares | Live |
| C.I.R (HONGKONG) CO., LIMITED -THE- | Private company limited by shares | Dissolved |
| Vanguard Realty (C.I.R.) Limited | Private company limited by shares | Live |
| CIRACLE LIMITED | Private company limited by shares | Dissolved |
| Ciracle Electronics Co., Limited | Private company limited by shares | Dissolved |
| CIRAK LIMITED | Private company limited by shares | Live |
| Ciranoush Capital Limited | Private company limited by shares | Live |
| CIRAY TRADING CO., LIMITED | Private company limited by shares | Live |
| CIRBY LIMITED | Private company limited by shares | Dissolved |
| CIRBY (HONG KONG) HOLDINGS LIMITED | Private company limited by shares | Dissolved |
| CIRCA LIMITED | Private company limited by shares | Dissolved |
| CIRCA LIMITED | Private company limited by shares | Live |
| CIRCA AUCTIONS LIMITED | Private company limited by shares | Dissolved |
| Circa Design Limited | Private company limited by shares | Live |
| Circa Jewels HK Limited | | Live |
| CIRCA PRODUCTIONS LIMITED | Private company limited by shares | Live |
| CIRCA TRADE LIMITED | Private company limited by shares | Dissolved |
| Circalis Co., Limited | Private company limited by shares | Live |
| CIRCANE LIMITED | Private company limited by shares | Dissolved |
| CIRCENE FAR EAST LIMITED | Private company limited by shares | Dissolved |
| CIRCENE (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| HONGKONG NOBLE AND CIRCEULATION INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| Circinus Limited | Private company limited by shares | Live |
| CIRCL Limited | Private company limited by shares | Live |
| Circl3s Limited | Private company limited by shares | Dissolved |
| WIN CIRCLE COMPANY LIMITED | Private company limited by shares | Dissolved |
| TIN CIRCLE LIMITED | Private company limited by shares | Dissolved |
| ONE CIRCLE LIMITED | Private company limited by shares | Dissolved |
| RED CIRCLE COMPANY LIMITED | Private company limited by shares | Dissolved |
| TOP CIRCLE LIMITED | Private company limited by shares | Dissolved |
| CIRCLE LIMITED | Private company limited by shares | Live |
| GP ART CIRCLE LIMITED | Private company limited by shares | Dissolved |
| CIRCLE MCS LIMITED | Private company limited by shares | Dissolved |
| TIP CIRCLE LIMITED | Private company limited by shares | Live |
| TEA CIRCLE COMPANY LIMITED | Private company limited by shares | Dissolved |
| PI CIRCLE LIMITED | Private company limited by shares | Dissolved |
| ART CIRCLE LIMITED | Private company limited by shares | Dissolved |
| CIRCLE HUG LIMITED | Private company limited by shares | Live |
| CIRCLE HK LIMITED | Private company limited by shares | Live |
| HAN CIRCLE LIMITED | Private company limited by shares | Live |
| CIRCLE SKY LIMITED | Private company limited by shares | Live |
| One Circle Limited | Company limited by guarantee | Live |
| CIRCLE CIRCLE 8 LIMITED | Private company limited by shares | Live |
| NEW CIRCLE LIMITED | Private company limited by shares | Live |
| ART CIRCLE LIMITED | Private company limited by shares | Live |
| Red circle Limited | Private company limited by shares | Live |
| JOY CIRCLE LIMITED | Private company limited by shares | Live |
| CIRCLE F&B COMPANY LIMITED | Private company limited by shares | Live |
| WIN CIRCLE LIMITED | Private company limited by shares | Live |
| Circle 8 Limited | Private company limited by shares | Live |
| CIRCLE RUN LIMITED | Private company limited by shares | Live |
| AB Circle Limited | Private company limited by shares | Live |
| CIRCLE TA LIMITED | Private company limited by shares | Live |
| Big Circle Limited | Private company limited by shares | Live |
| CIRCLE 838 LIMITED | Private company limited by shares | Live |
| Circle K Limited | Private company limited by shares | Live |
| Circle M Limited | Private company limited by shares | Live |
| Red Circle Limited | Private company limited by shares | Live |
| CIRCLE 42 LIMITED | Private company limited by shares | Live |
| CIRCLE WIN LIMITED | | Live |
| CIRCLE 360 LIMITED | | Live |
| T Circle Limited | | Live |
| A Circle Limited | | Live |
| CIRCLE ONE LIMITED | | Live |
| CIRCLE. V LIMITED | | Live |
| Bon Circle Limited | | Live |
| TK Circle Limited | | Live |
| CIRCLE ACHIEVE LIMITED | | Live |
| HK ADMINISTRATIVE ART CIRCLE FEDERATION LIMITED | Private company limited by shares | Live |
| CIRCLE ADVENTURE COMPANY LIMITED | Private company limited by shares | Live |
| CIRCLE AFFIRM LIMITED | Private company limited by shares | Live |
| AFFLUENT CIRCLE LIMITED | Private company limited by shares | Live |
| CIRCLE BEAN AGENCY LIMITED | Private company limited by shares | Live |
| AHREF CIRCLE LIMITED | Private company limited by shares | Live |
| CIRCLE ANGLE LIMITED | Private company limited by shares | Live |
| ASIA CIRCLE LIMITED -THE- | Company limited by guarantee | Live |
| CIRCLE ASIA LIMITED | Private company limited by shares | Live |
| HOT CIRCLE ASIA LIMITED | Private company limited by shares | Live |
| NEW CIRCLE ASIA LIMITED | Private company limited by shares | Live |
| Tea Circle (Asia) Limited | Private company limited by shares | Live |
| Creative Circle Asia Limited | Private company limited by shares | Live |
| ART CIRCLE ATELIER LIMITED | Private company limited by shares | Live |
| Aura Circle Limited | | Live |
| Autism Circle Limited | Private company limited by shares | Live |
| Azquare Circle Limited | Private company limited by shares | Live |
| CIRCLE BABE LIMITED | | Live |
| CIRCLE BASE TELECOMMUNICATION LIMITED | Private company limited by shares | Dissolved |
| BEST CIRCLE LIMITED | Private company limited by shares | Dissolved |
| BEST CIRCLE LIMITED | Private company limited by shares | Live |
| BUSINESS CIRCLE LIMITED | Private company limited by shares | Dissolved |
| BUSY CIRCLE LIMITED | Private company limited by shares | Dissolved |
| CAPITAL CIRCLE LIMITED | Private company limited by shares | Dissolved |
| CIRCLE CAPITAL LIMITED | Private company limited by shares | Live |
| CARE CIRCLE LIMITED | Private company limited by shares | Dissolved |
| CIRCLE CARE LIMITED | | Live |
| CIRCLE CENTRAL LIMITED | Private company limited by shares | Live |
| CENTRAL CIRCLE LIMITED | Private company limited by shares | Live |
| CHAMP CIRCLE LIMITED | Private company limited by shares | Live |
| CHAMPION CIRCLE LIMITED | Private company limited by shares | Live |