| ORI & OCCI LIMITED | Private company limited by shares | Live |
| OCCI LIMITED | | Live |
| TOP OCCIDENT LIMITED | Private company limited by shares | Dissolved |
| Orient Occident Atelier Limited | Private company limited by shares | Live |
| NEW OCCIDENT EDUCATION GROUP (HK) LIMITED | Private company limited by shares | Dissolved |
| OCCIDENT SYSTEMS HONG KONG LIMITED | Private company limited by shares | Dissolved |
| OCCIDENT INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| OCCIDENT SCIENCE & TECHNOLOGY LIGHTING ELECTRONIC COMPANY LIMITED | Private company limited by shares | Dissolved |
| OCCIDENT TECHNOLOGY CO., LIMITED | Private company limited by shares | Dissolved |
| OCCIDENTAL LIMITED | Private company limited by shares | Dissolved |
| Occidental Bay Limited | | Live |
| AUSTRALASIAN & OCCIDENTAL LIMITED | Private company limited by shares | Dissolved |
| OCCIDENTAL CHEMICAL CHINA LIMITED | Private company limited by shares | Dissolved |
| OCCIDENTAL CHEMICAL FAR EAST LIMITED | Private company limited by shares | Live |
| OCCIDENTAL PETROLEUM CO., LIMITED | Private company limited by shares | Dissolved |
| Occidental Commodities Limited | Private company limited by shares | Live |
| Occidental Development Limited | | Live |
| Oriental & Occidental Energy Consulting Limited | Private company limited by shares | Live |
| U.S. OCCIDENTAL PETROLEUM GROUP CO., LIMITED | Private company limited by shares | Dissolved |
| New Occidental Education & Technology Group Limited | Private company limited by shares | Live |
| Occidental Plastics (HK) Limited | Private company limited by shares | Live |
| Hong Kong Occidental Cosmetics Co., Limited | Private company limited by shares | Live |
| OCCIDENTAL INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| OCCIDENTAL INVESTMENTS LIMITED | Private company limited by shares | Live |
| OCCIDENTAL OCEAN LIMITED | Private company limited by shares | Live |
| OCCIDENTAL AND ORIENTAL LIMITED | Private company limited by shares | Dissolved |
| Oriental & Occidental Limited | Private company limited by shares | Live |
| Occidental and Oriental Company Limited | | Live |
| OCCIDENTAL PEARL LIMITED | Private company limited by shares | Dissolved |
| OCCIDENTAL FINANCIAL SERVICES LIMITED | Private company limited by shares | Dissolved |
| OCCIDENTAL SHIPPING COMPANY LIMITED | Private company limited by shares | Dissolved |
| OCCIDENTAL POWER TECHNOLOGIES LIMITED | Private company limited by shares | Live |
| OCCIDENTAL TRADING CO. LIMITED | Private company limited by shares | Dissolved |
| OCCIDENTAL TRAVEL LIMITED | Private company limited by shares | Dissolved |
| OCCIDENTIAL TRADING LIMITED | Private company limited by shares | Dissolved |
| OCCITASIA LIMITED | Private company limited by shares | Live |