| Company Name | Type | Status |
|---|---|---|
| CTHINK TECHNOLOGY LIMITED | Private company limited by shares | Live |
| C-thinkingtech Company Limited | Live | |
| CTHK CPA LIMITED | Live | |
| CTHK Financial Planning Limited | Private company limited by shares | Live |
| SURPLUS (CT-HK) TRADING LIMITED | Private company limited by shares | Live |
| GC C-THREE LIMITED | Private company limited by shares | Live |
| CTHUNGS COMPANY LIMITED | Live | |
| CTHY Technology (Hong Kong) Limited | Private company limited by shares | Live |