| Lantouzi (HK) Limited | Private company limited by shares | Live |
| LANTOWER ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| LANTRADE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| LANTRAL COMPANY LIMITED | Private company limited by shares | Live |
| Lantrn Limited | Private company limited by shares | Live |
| LANTRO SYSTEMS LIMITED | Private company limited by shares | Live |
| Lantronic Technology Components Limited | Private company limited by shares | Dissolved |
| LANTRONIX HONG KONG LIMITED | Private company limited by shares | Live |
| Lantsa Limited | Private company limited by shares | Live |
| LANTSANG INDUSTRIAL LIMITED | | Live |
| LANTTIS HK LIMITED | Private company limited by shares | Live |
| LANTUN TECH CO., LIMITED | Private company limited by shares | Live |
| Ningbo Lantuo Import & Export Co., Limited | Private company limited by shares | Live |
| Lantuo Industry Co., Limited | | Live |
| Lanturn HK Limited | | Live |
| LANTUTENG TECHNOLOGY LIMITED | Private company limited by shares | Live |