| HOWELL LIMITED | Private company limited by shares | Dissolved |
| HOWELL LIMITED | Private company limited by shares | Live |
| HOWELL P C B LIMITED | Private company limited by shares | Live |
| HOWELL INC LIMITED | Private company limited by shares | Live |
| HOWELL TRADE & CONSULTANCY LIMITED | | Live |
| HOWELL ENTERPRISE LIMITED | Private company limited by shares | Live |
| Howell Handcrafted Dim Sum Limited | Private company limited by shares | Live |
| H.M. HOWELL AND COMPANY, LIMITED | Private company limited by shares | Dissolved |
| HOWELL INVESTMENT COMPANY LIMITED | Private company limited by shares | Live |
| HOWELL SECRETARIES LIMITED | Private company limited by shares | Dissolved |
| WM. HOWELLS (ASSESSORS) LIMITED | Private company limited by shares | Dissolved |