| SYNAPSE COMPANY LIMITED | Private company limited by shares | Live |
| Arc Synapse Limited | Private company limited by shares | Live |
| Synapse Asia Limited | Private company limited by shares | Live |
| Synapse Software (Asia) Limited | Private company limited by shares | Live |
| Synapse Capital Limited | Private company limited by shares | Live |
| SYNAPSE (CHINA) LIMITED | Private company limited by shares | Live |
| SYNAPSE CONSULTING LIMITED | Private company limited by shares | Live |
| SYNAPSE FINANCIAL TECHNOLOGIES LIMITED | Private company limited by shares | Live |
| SYNAPSE GROUP LIMITED | Private company limited by shares | Dissolved |
| SYNAPSE INVESTMENT LIMITED | Private company limited by shares | Live |
| Synapse Design Automation (Hong Kong) Limited | Private company limited by shares | Live |
| SYNAPSE LOGIC PTE LIMITED | Private company limited by shares | Live |
| Synapse Capital Management Limited | Private company limited by shares | Live |
| Synapse Health Management Limited | Private company limited by shares | Live |
| SYNAPSE MEDICAL CENTRE LIMITED | Private company limited by shares | Live |
| SYNAPSE MICROELECTRONICS LIMITED | Private company limited by shares | Dissolved |
| Synapse Network Company Limited | Private company limited by shares | Live |
| SYNAPSE PACIFIC LIMITED | Private company limited by shares | Dissolved |
| SYNAPSE TECH COMPANY LIMITED | Private company limited by shares | Live |
| Synapse Technology Company Limited | Private company limited by shares | Live |
| SYNAPSE THERAPEUTICS LIMITED | Private company limited by shares | Live |
| SYNAPSEWORLD LIMITED | Private company limited by shares | Dissolved |