| NORTON COMPANY LIMITED | Private company limited by shares | Dissolved |
| NORTON LIMITED | Private company limited by shares | Dissolved |
| NORTON LIMITED | Private company limited by shares | Dissolved |
| NORTON LIMITED | Private company limited by shares | Live |
| HK NORTON LIMITED | Private company limited by shares | Live |
| NORTON APPRAISALS LIMITED | Private company limited by shares | Live |
| NORTON APPRAISALS (ASIA) LIMITED | Private company limited by shares | Live |
| R. NORTON AND ASSOCIATES LIMITED | Private company limited by shares | Live |
| NORTON DESIGNS LIMITED | Private company limited by shares | Dissolved |
| Norton Group Limited | Private company limited by shares | Live |
| Norton Hill Limited | Private company limited by shares | Live |
| Norton Appraisals (Hong Kong) Limited | Private company limited by shares | Live |
| NORTON INDUSTRIAL LIMITED | Private company limited by shares | Dissolved |
| NORTON INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| NORTON INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| NORTON INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| Norton Investments LLC Limited | Private company limited by shares | Live |
| JOHN NORTON LIMITED | Private company limited by shares | Dissolved |
| CHOO, NORTON & LAMBALLE LIMITED | Private company limited by shares | Live |
| NORTON BUSINESS MACHINES COMPANY LIMITED | Private company limited by shares | Dissolved |
| Norton Medical Limited | Private company limited by shares | Live |
| NORTON PEACE LIMITED | | Live |
| NORTON PUBLICATIONS LIMITED | Private company limited by shares | Dissolved |
| NORTON ROTARY CAPITAL LIMITED | Private company limited by shares | Live |
| Norton Rowland CPA Limited | Private company limited by shares | Live |
| Norton Rowland Consulting Limited | Private company limited by shares | Live |
| NORTON TRADING COMPANY LIMITED | Private company limited by shares | Live |
| NORTONS LIMITED | Private company limited by shares | Dissolved |