| iOpen ZIPLOC Packaging & Design Company Limited | Private company limited by shares | Live |
| iOpener Asia Limited | Private company limited by shares | Live |
| IORA & COMPANY LIMITED | Private company limited by shares | Live |
| IORAS LIMITED | Private company limited by shares | Live |
| I-ORDER INTERNATIONAL CO., LIMITED | Private company limited by shares | Live |
| IOREAL LIMITED | Private company limited by shares | Live |
| iOrganic Company Limited | Private company limited by shares | Live |
| IORI COMPANY LIMITED | Private company limited by shares | Dissolved |
| i.Orient Limited | Private company limited by shares | Live |
| Iorigin Technology Co., Limited | Private company limited by shares | Live |
| I-ORIGIN PR CONSULTING LIMITED | Private company limited by shares | Live |
| I-ORIGIN LEATHER LIMITED | Private company limited by shares | Dissolved |
| IORRO LIMITED | Private company limited by shares | Live |
| iOrtho Limited | Private company limited by shares | Live |
| Iosis Expertise Limited | Private company limited by shares | Live |
| IOSOFTWARE LIMITED | Private company limited by shares | Live |
| IOSOI Company Limited | | Live |
| IOSPARK Limited | | Live |
| IOSS LIMITED | Private company limited by shares | Live |
| ioStation Limited | Private company limited by shares | Live |
| I.O.T. Point Company Limited | Private company limited by shares | Live |
| IOT24 LIMITED | Private company limited by shares | Live |
| IOTA Limited | Private company limited by shares | Live |
| SKY IOTA LIMITED | | Live |
| Iota CPA Limited | | Live |
| Pi Iota At-Large-Chapter Limited | | Live |
| IOTA (HKG) LIMITED | Private company limited by shares | Live |
| IOTA WEDDING LIMITED | Private company limited by shares | Dissolved |
| ioTag Hong Kong Limited | | Live |
| IOTCLOUD LIMITED | Private company limited by shares | Live |
| iotcloudengine Limited | Private company limited by shares | Live |
| Iotdata.io Limited | Private company limited by shares | Live |
| IOTECH COMPANY LIMITED | Private company limited by shares | Dissolved |
| IOTECH Limited | Private company limited by shares | Live |
| Enerna IoTech Co., Limited | Private company limited by shares | Live |
| IOTECH ELECTRONIC LIMITED | Private company limited by shares | Live |
| IOTECH GROUP LIMITED | | Live |
| IOTECH PRECISION SYSTEMS LIMITED | Private company limited by shares | Dissolved |
| SensePlus IoTech Limited | Private company limited by shares | Live |
| IOTECH (SHENZHEN) COMPANY LIMITED | Private company limited by shares | Live |
| SmarThing IoT_echnology Limited | Private company limited by shares | Live |
| iotecno Limited | | Live |
| IOTENA HOLDING COMPANY LIMITED | Private company limited by shares | Live |
| IOTERA TECHNOLOGIES LIMITED | Private company limited by shares | Live |
| Ioterra International Consulting Co., Limited | Private company limited by shares | Live |
| IOTHA LIMITED | Private company limited by shares | Dissolved |
| IOTIDEA Limited | | Live |
| IOTINVEST LIMITED | Private company limited by shares | Live |
| ioto Studio Limited | Private company limited by shares | Live |
| Iotostark Teco Limited | Private company limited by shares | Live |
| IoTree Limited | Private company limited by shares | Live |
| IoTree Education Technology Limited | Private company limited by shares | Live |
| IoTree Property Technology Limited | Private company limited by shares | Live |
| IOTT (China) Limited | Private company limited by shares | Live |
| IOTT INNOVATIONS OF CHINA CO., LIMITED | Private company limited by shares | Live |
| IOTVO TECHNOLOGY LIMITED | | Live |
| IoTx Solutions ( HK ) Pte Limited | Private company limited by shares | Live |
| I.O.U. LIMITED | Private company limited by shares | Live |
| I.O.U. SALON LIMITED | Private company limited by shares | Live |
| IOUNET LIMITED | Private company limited by shares | Dissolved |
| IOUSON HITECH COMPANY LIMITED | Private company limited by shares | Live |
| IOutback Limited | Private company limited by shares | Live |
| iOutlet Limited | Private company limited by shares | Live Commenced dormancy on 28-Dec-2015 |
| iove Limited | | Live |
| HK IOVELY INTERNATIONAL INVESTMENT GROUP CO., LIMITED | Private company limited by shares | Dissolved |
| IOWA ENTERPRISES LIMITED | Private company limited by shares | Live |
| IOWAEE CO. LIMITED | Private company limited by shares | Live |
| Ioxus Asia Limited | Private company limited by shares | Live |
| IOXYGEN LIMITED | Private company limited by shares | Dissolved |
| IOYSTERS LIMITED | Private company limited by shares | Live |