| JOHNSTON DEVELOPMENTS LIMITED | Private company limited by shares | Dissolved |
| JOHNSTON ENGINEERING CO. LIMITED | Private company limited by shares | Dissolved |
| JOHNSTON ENGINEERING LIMITED | Private company limited by shares | Live |
| JOHNSTON ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| EVERETT AND JOHNSTON ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| JOHNSTON FOODS LIMITED | | Live |
| JOHNSTON INTERNATIONAL LIMITED | Private company limited by shares | Live |
| JOHNSTON INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| JOHNSTON INVESTMENTS LIMITED | Private company limited by shares | Live |
| Jerrice Marcell Johnston Limited | Private company limited by shares | Live |
| JOHNSTON HO LYONS LIMITED | Private company limited by shares | Dissolved |
| JOHNSTON GARMENT MANUFACTURER LIMITED | Private company limited by shares | Dissolved |
| JOHNSTON PROPERTIES LIMITED | Private company limited by shares | Live |
| JOHNSTON PROPERTY CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| Noel and Ruth Johnston Limited | | Live |
| SAMAR JOHNSTON LIMITED | Private company limited by shares | Live |
| Ship & Johnston Limited | Private company limited by shares | Live |
| JOHNSTON TECHNOLOGY LIMITED | Private company limited by shares | Dissolved |
| JOHNSTON TECHNOLOGY LIMITED | Private company limited by shares | Live |
| Johnston Business Technology Limited | Private company limited by shares | Live |
| JPC JOHNSTON TRAINING CONSULTANTS LIMITED | Private company limited by shares | Dissolved |
| WILLIAMS & JOHNSTON LIMITED | Private company limited by shares | Dissolved |
| JOHNSTONE LIMITED | Private company limited by shares | Dissolved |
| JOHNSTONS FAR EAST LIMITED | Private company limited by shares | Dissolved |
| JOHNSTOWN LIMITED | Private company limited by shares | Dissolved |
| JOHNSWOOD LIMITED | Private company limited by shares | Dissolved |
| JOHNSWOOD LIMITED | Private company limited by shares | Live |
| Johnsystem Limited | Private company limited by shares | Live |
| JOHNTEX LIMITED | Private company limited by shares | Dissolved |
| JOHNTEX MFG COMPANY LIMITED | Private company limited by shares | Dissolved |
| JOHNTON COMPANY LIMITED | Private company limited by shares | Dissolved |
| Johntop Limited | | Live |
| Hong Kong Johnvictor Technology Limited | Private company limited by shares | Live |
| JOHNVIDTA INTERNATIONAL LIMITED | Private company limited by shares | Dissolved |
| JOHNWAN INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| JOHNWAY LIGHTING COMPANY LIMITED | Private company limited by shares | Live |
| JOHNWING LIMITED | Private company limited by shares | Live |
| JOHNWONG GROUP LIMITED | | Live |
| JOHN-WYNNE ENTERPRISE LIMITED | Private company limited by shares | Dissolved |
| Johny Happy Love Limited | Private company limited by shares | Live |
| Johnys Investments Limited | Private company limited by shares | Live |
| JOHO LED LIGHTING LIMITED | Private company limited by shares | Dissolved |
| JOHOF INDUSTRIAL LIMITED | | Live |
| JOHOKU COMPANY LIMITED | Private company limited by shares | Dissolved |
| JOHOKU HONG KONG CO., LIMITED | Private company limited by shares | Live |
| Johold Limited | | Live |
| HONGKONG JOHOLL CLOTHING CO., LIMITED | Private company limited by shares | Dissolved |
| HK Johon Trade Co., Limited | Private company limited by shares | Live |
| JOHONSAM LIMITED | Private company limited by shares | Dissolved |
| Johoo Chemical Co., Limited | | Live |
| JOHOO INTERNATIONAL LIMITED | Private company limited by shares | Live |
| JOHOO TECHNOLOGY LIMITED | | Live |
| JOHOPE E-COMMERCE LIMITED | | Live |
| JOHORE LIMITED | Private company limited by shares | Dissolved |
| SOUTH JOHORE INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| Johos Lab Company Limited | Private company limited by shares | Live |
| ITALY JOHOT LIMITED | Private company limited by shares | Dissolved |
| JOHOUNY COMPANY LIMITED | Private company limited by shares | Dissolved |
| Johow Tech Technology Limited | Private company limited by shares | Live |
| JOHSEN COMPANY LIMITED | Private company limited by shares | Dissolved |
| Johstar E-Commerce (China) Limited | Private company limited by shares | Live |
| JOHUA MOLD CO., LIMITED | Private company limited by shares | Live |