| DIALOG LIMITED | Private company limited by shares | Dissolved |
| DIALOG SRV LIMITED | Private company limited by shares | Dissolved |
| DIALOG LIMITED | Private company limited by shares | Live |
| HK Dialog Limited | Private company limited by shares | Live |
| DIALOG HK LIMITED | Private company limited by shares | Live |
| DIALOGHUB LIMITED | Private company limited by shares | Live |
| DIALOGIC CHINA LIMITED | Private company limited by shares | Dissolved |
| Dialogic (Hong Kong) Limited | Private company limited by shares | Live |
| DIALOGIX PRODUCTS LIMITED | Private company limited by shares | Dissolved |
| DIALOGUE LIMITED | Private company limited by shares | Live |
| Box Dialogue Limited | Private company limited by shares | Live |
| Dialogue in Art Limited | Company limited by guarantee | Live |
| Dialogue Consulting Limited | Private company limited by shares | Live |
| DIALOGUE FLOW LIMITED | Private company limited by shares | Live |
| DIALOGUE GROUP HK LIMITED | Private company limited by shares | Live |
| DIALOGUE (HONG KONG) LIMITED | Private company limited by shares | Dissolved |
| INTERCULTURAL DIALOGUE LIMITED | Company limited by guarantee | Live |
| DIALOGUE LEARNING COMPANY LIMITED | Private company limited by shares | Live |
| Love Dialogue Limited | Private company limited by shares | Live |
| PACIFIC DIALOGUE LIMITED | Private company limited by shares | Dissolved |
| DIALOGUE PLUS LIMITED | Private company limited by shares | Live |
| DIALOGUE TRADING LIMITED | Private company limited by shares | Dissolved |
| DIALOGUES LIMITED | Private company limited by shares | Live |