| ATON LIMITED | Private company limited by shares | Live |
| ATON ASSETS ASIA LIMITED | Private company limited by shares | Live |
| ATON HOLDING LIMITED | Private company limited by shares | Live |
| ATON INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| Aton Mortgage Limited | Private company limited by shares | Live |
| AT-one Limited | Private company limited by shares | Live |
| ATONE NEW ENERGY LIMITED | Private company limited by shares | Live |
| AT-ONE (HONG KONG) LIMITED | Private company limited by shares | Live |
| ATONE LIGHTING INTERNATIONAL LIMITED | Private company limited by shares | Live |
| Atoner Limited | | Live |
| Atonerstore Company Limited | | Live |
| ATONG TECHNOLOGY LIMITED | | Live |
| ATONI ESTATE LIMITED | Private company limited by shares | Live |
| Atonney Lighting Company Limited | Private company limited by shares | Live |
| ATONNIC LIMITED | Private company limited by shares | Dissolved |
| Atontech (Hong Kong) Co., Limited | Private company limited by shares | Live |