| ITHIN INTERNATIONAL COMPANY LIMITED | Private company limited by shares | Live |
| iTHINK LIMITED | Private company limited by shares | Live |
| iThink Academy Limited | Private company limited by shares | Live |
| iThink International Consultancy Limited | Private company limited by shares | Dissolved |
| iThink Consulting Limited | Private company limited by shares | Live |
| Ithink International Cultural Investment Co., Limited | Private company limited by shares | Live |
| ITHINK GROUP CO., LIMITED | Private company limited by shares | Live |
| iThink Media Group Limited | Private company limited by shares | Live |
| Hong Kong Ithink Technology Company Limited | Private company limited by shares | Live |
| ITHINK MEDIACOM LIMITED | Private company limited by shares | Dissolved |
| I-Think Solution Limited | Private company limited by shares | Dissolved |
| ITHINK STUDIO LIMITED | Private company limited by shares | Live |
| iThink Trending Company Limited | Private company limited by shares | Live |
| I-Thinkable Limited | Private company limited by shares | Live |
| iThinkin Limited | Private company limited by shares | Live |
| i-Thinking Digital Marketing Limited | Private company limited by shares | Live |
| ITHINKTANK SOFTWARE CO. LIMITED | Private company limited by shares | Dissolved |