| ARCO HK LIMITED | Private company limited by shares | Dissolved |
| ARCO LIMITED | Private company limited by shares | Dissolved |
| Arco Limited | Private company limited by shares | Dissolved |
| ARCO S & L LIMITED | Private company limited by shares | Live |
| ARCO 28 LIMITED | Private company limited by shares | Live |
| Arco Trade Asia Limited | Private company limited by shares | Live |
| ARCO ASIA CO., LIMITED | Private company limited by shares | Live |
| Arco Cubus Limited | Private company limited by shares | Live |
| ARCO DESIGN LIMITED | | Live |
| AA (ARCO) ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| ARCO ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| ARCO INVESTMENT LIMITED | Private company limited by shares | Live |
| ARCO MFG., CO. LIMITED | Private company limited by shares | Dissolved |
| ARCO MUSIC PUBLISHING LIMITED | Private company limited by shares | Dissolved |
| ARCO PROPERTIES LIMITED | Private company limited by shares | Live |
| ARCO LEE STUDIO LIMITED | Private company limited by shares | Live |
| ARCO System Limited | Private company limited by shares | Live |
| ARCO TECHNOLOGY COMPANY LIMITED | Private company limited by shares | Live |
| Arco Technology (Asia Pacific) Limited | Private company limited by shares | Live |
| ARCO TRADING COMPANY LIMITED | Private company limited by shares | Dissolved |
| ARCO VISION LIMITED | Private company limited by shares | Live |
| ARCOA COMMUNICATION COMPANY LIMITED | Private company limited by shares | Live |
| Arcocity Secretary Limited | Private company limited by shares | Live |
| Arcodem Limited | Private company limited by shares | Live |
| ARCODYL LIMITED | Private company limited by shares | Live |
| ARCOFIELD LIMITED | Private company limited by shares | Dissolved |
| ARCOHOUSE COMPANY LIMITED | Private company limited by shares | Dissolved |
| ARCOIRIS ASIA AMERICAS LIMITED | Private company limited by shares | Live |
| ARCOIRIS CO., LIMITED | Private company limited by shares | Live |
| ARCOIRIS INVESTMENT LIMITED | Private company limited by shares | Live |
| ARCOIRIS LEARNING CENTRE COMPANY LIMITED | Private company limited by shares | Live |
| ARCO-IRIS PRODUCTION COMPANY LIMITED | Private company limited by shares | Dissolved |
| ARCOLA LIMITED | Private company limited by shares | Dissolved |
| ARCOLA INVESTMENTS LIMITED | Private company limited by shares | Live |
| ARCOLATINO LIMITED | Private company limited by shares | Dissolved |
| Arcole Limited | Private company limited by shares | Live |
| ARCOMARC HONGKONG LIMITED | Private company limited by shares | Dissolved |
| ARCOME LIMITED | Private company limited by shares | Live |
| Arcomm Group Limited | Private company limited by shares | Dissolved |
| ARCON LIMITED | Private company limited by shares | Dissolved |
| ARCON LIMITED | Private company limited by shares | Dissolved |
| ARCON LIMITED | Private company limited by shares | Live |
| ARCON DIGITAL LIMITED | Private company limited by shares | Live |
| ARCON SMARTDISPLAY LIMITED | Private company limited by shares | Dissolved |
| ARCONCEPT LIMITED | Private company limited by shares | Live |
| ARCONS Limited | Private company limited by shares | Live |
| ARCONSOFT SYSTEM LIMITED | Private company limited by shares | Dissolved |
| ARCOODA LIMITED | Private company limited by shares | Live |
| ARCOP EVOLUTION LIMITED | Private company limited by shares | Dissolved |
| Arcopac Limited | Private company limited by shares | Live |
| ARCOPLATE CHINA LIMITED | Private company limited by shares | Dissolved |
| ARCOR LIMITED | Private company limited by shares | Dissolved |
| ARCOR ASIA, LIMITED | Private company limited by shares | Dissolved |
| ARCORE LIMITED | Private company limited by shares | Live |
| Arcorey Company Limited | Private company limited by shares | Live |
| ARCORON LIMITED | Private company limited by shares | Live |
| ARCORP TEXTILES LIMITED | Private company limited by shares | Dissolved |
| ARCOS ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| ARCOTE (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| ARCOTEADE TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| ArcoTech Limited | Private company limited by shares | Live |
| ARCOTECH SYSTEM LIMITED | Private company limited by shares | Live |
| ARCOTECT LIMITED | Private company limited by shares | Live |
| ARCOTRADE COMPANY LIMITED | Private company limited by shares | Live |
| Arcotti Limited | Private company limited by shares | Live |
| ARCOWELL Limited | | Live |
| ARCOWIN COMPANY LIMITED | Private company limited by shares | Live |