| China Flyover Operation Management Limited | Private company limited by shares | Live |
| Hongda Asset Operation Management Co., Limited | | Live |
| Operation & Management Excellence Limited | Private company limited by shares | Live |
| OUTLETS OPERATION MANAGEMENT LIMITED | Private company limited by shares | Live |
| OUTLETS (USA) OPERATION MANAGEMENT LIMITED | | Live |
| Runxing Business Operation Management Limited | Private company limited by shares | Live |
| Sunny Day Operation Management Limited | Private company limited by shares | Live |
| OPERATION & TECHNOLOGY MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| UDL MARINE OPERATION LIMITED | Private company limited by shares | Live |
| Mills Operation Limited -The- | Private company limited by shares | Live |
| MODERN PORTS OPERATION & TRANSPORTS LIMITED | Private company limited by shares | Dissolved |
| NATH OPERATION LIMITED | Private company limited by shares | Live |
| NUCTECH OPERATION COMPANY LIMITED | Private company limited by shares | Live |
| BUSINESS OFFICE OPERATION LIMITED | Private company limited by shares | Live |
| Ophtha GLAM (Operation) Limited | | Live |
| Poseidon Operation Limited | Private company limited by shares | Live |
| Missfresh property operation HK Limited | Private company limited by shares | Live |
| PURE OPERATION LIMITED | Private company limited by shares | Live |
| Operation Recruit Limited | Private company limited by shares | Live |
| HK ROYAL CAR FACTORY CAR CHAIN OPERATION LIMITED | Private company limited by shares | Dissolved |
| SIMBA CAPITAL OPERATION CO., LIMITED | Private company limited by shares | Live |
| SMOOTH OPERATION LIMITED | Private company limited by shares | Dissolved |
| MOLIN SPORT OPERATION COMPANY LIMITED | Private company limited by shares | Live |
| Systemic Risk Co operation Association Co., Limited | | Live |
| Talent Capital Operation Company Limited | Private company limited by shares | Live |
| Business Operation Technologies Limited | Private company limited by shares | Live |
| HKBC Technology Operation (Hong Kong) Limited | | Live |
| Joylink Digital Technology Operation Limited | Private company limited by shares | Live |
| HONEST OPERATION TRADING LIMITED | Private company limited by shares | Live |
| T&Y OPERATION LOGISTIC TRADING COMPANY LIMITED | Private company limited by shares | Live |
| HK SUREVI (OPERATION TREASURE) INVESTMENT LIMITED | Private company limited by shares | Live |
| UNIT CO OPERATION LIMITED | Private company limited by shares | Dissolved |
| Unlimited Factory Operation Limited | Private company limited by shares | Live |
| Well Operation Limited | Company limited by guarantee | Live |
| ZEBANG OPERATION LIMITED | Private company limited by shares | Live |
| Operation28 Limited | | Live |
| MANAGEMENT OPERATIONNEL ASIE PACIFIQUE LIMITED | Private company limited by shares | Live |
| RAI (OPERATIONS) LIMITED | Private company limited by shares | Dissolved |
| BC OPERATIONS LIMITED | Private company limited by shares | Dissolved |
| GSI OPERATIONS LIMITED | Private company limited by shares | Live |
| PCD OPERATIONS HK LIMITED | Private company limited by shares | Live |
| HKB OPERATIONS LIMITED | Private company limited by shares | Dissolved |
| BC OPERATIONS LIMITED | Private company limited by shares | Live |
| LE HK OPERATIONS LIMITED | Private company limited by shares | Live |
| ASL Operations HK Limited | Private company limited by shares | Live |
| VS Operations HK Limited | Private company limited by shares | Live |
| CSM Operations Limited | Private company limited by shares | Live |
| GEO OPERATIONS LIMITED | Private company limited by shares | Live |
| ELG Operations Limited | Private company limited by shares | Live |
| SPS HK Operations Limited | Private company limited by shares | Live |
| i2R Operations Limited | Private company limited by shares | Live |
| FM Operations HK Limited | Private company limited by shares | Live |
| AE Operations Limited | Private company limited by shares | Live |
| Owl Lit Operations Limited | Private company limited by shares | Live |
| YUK FAI OPERATIONS COMPANY LIMITED | Private company limited by shares | Live |
| WSY Operations Limited | Private company limited by shares | Live |
| HK SGA Operations Limited | Private company limited by shares | Live |
| SMX Operations Limited | | Live |
| 1688 (BUSINESS OPERATIONS) LIMITED | Private company limited by shares | Live |
| 8988 (BUSINESS OPERATIONS) LIMITED | Private company limited by shares | Live |
| ACADEMY OPERATIONS (INTERNATIONAL) LIMITED | Private company limited by shares | Live |
| Cerberus Asia Operations and Advisory Limited | Private company limited by shares | Live |
| AFSC OPERATIONS LIMITED | Private company limited by shares | Live |
| DaSheng Agricultural Operations Co., Limited | Private company limited by shares | Live |
| Antire Operations Limited | Private company limited by shares | Live |
| APPM (OPERATIONS) COMPANY LIMITED | Private company limited by shares | Live |
| Architectural Operations Limited | Private company limited by shares | Live |
| Guangdong-Hong Kong-Macau Bay Area Economic and Trade Institute (Operations) Limited | Private company limited by shares | Live |
| ASIA OPERATIONS COMPANY, LIMITED | Private company limited by shares | Live |
| B. F. Asia Operations Limited | Private company limited by shares | Dissolved |
| Avesta Asia Operations Limited | | Live |
| BUSINESS OPERATIONS ASIA LIMITED | Private company limited by shares | Live |
| HYDROTECH ASIA OPERATIONS LIMITED | Private company limited by shares | Live |
| SPECIAL ASSETS OPERATIONS LIMITED | Private company limited by shares | Dissolved |
| HK CCS AUTO OPERATIONS MANAGEMENT LIMITED | Private company limited by shares | Dissolved |
| PACIFIC BASIN OPERATIONS LIMITED | Private company limited by shares | Dissolved |
| BASON OPERATIONS COMPANY LIMITED | Private company limited by shares | Live |
| HEALTHCARE INTERNATIONAL OPERATIONS - BEIJING CHINESE MEDICAL UNIVERSITY JOINT MEDICAL CENTRE LIMITED | Private company limited by shares | Dissolved |
| BINGLEY OPERATIONS LIMITED | Private company limited by shares | Dissolved |
| BIOCHEMICAL OPERATIONS COMPANY (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| BISSELL HK OPERATIONS LIMITED | Private company limited by shares | Live |
| Black Sun Operations Limited | Private company limited by shares | Live |
| HK LANGOLYM BRAND OPERATIONS LIMITED | Private company limited by shares | Live |
| BRANDMA OPERATIONS LIMITED | Private company limited by shares | Live |
| BCI Brewing Operations Limited | Private company limited by shares | Live |
| BRINGTON OPERATIONS LIMITED | Private company limited by shares | Live Commenced dormancy on 06-Apr-2016 |
| Bullish HK Operations Limited | | Live |
| A&A (Business Operations) Limited | Private company limited by shares | Live |
| CANNES BAY BUSINESS OPERATIONS LIMITED | Private company limited by shares | Live |
| NEW IDOL (BUSINESS OPERATIONS) LIMITED | Private company limited by shares | Live |
| NEW IDOL 168 (BUSINESS OPERATIONS) LIMITED | Private company limited by shares | Live |
| HK LIANSHENG BUSINESS OPERATIONS LIMITED | Private company limited by shares | Live |
| STRATEGIC BUSINESS OPERATIONS COMPANY LIMITED | Private company limited by shares | Dissolved |
| CANADIAN STANDARDS ASSOCIATION (FAR EAST OPERATIONS) LIMITED | Private company limited by shares | Live Ceased dormancy on 28-Sep-2010 |
| EXS CAPITAL OPERATIONS LIMITED | Private company limited by shares | Live |
| Capital Operations Limited | Private company limited by shares | Live |
| Capstone Operations Limited | | Live |
| Cardinal Operations HK Limited | | Live |
| MATTEL VENDOR OPERATIONS DIE CAST LIMITED | Private company limited by shares | Live |
| C.D.M. ASIA PACIFIC OPERATIONS LIMITED | Private company limited by shares | Live |