| TYNE LIMITED | Private company limited by shares | Dissolved |
| TYNE AGROCHEM LIMITED | Private company limited by shares | Live |
| Tyne Flow Limited | Private company limited by shares | Live |
| TYNE INDUSTRIAL CO., LIMITED | Private company limited by shares | Live |
| TYNE INVESTMENT LIMITED | Private company limited by shares | Dissolved |
| TYNEBURN INVESTMENT COMPANY LIMITED | Private company limited by shares | Dissolved |
| TYNECASTLE LIMITED | Private company limited by shares | Dissolved |
| TYNECASTLE LIMITED | Private company limited by shares | Dissolved |
| TYNECASTLE INVESTMENTS LIMITED | Private company limited by shares | Dissolved |
| TYNECASTLE PARK LIMITED | Private company limited by shares | Dissolved |
| TYNEDALE SHIPPING COMPANY LIMITED | Private company limited by shares | Dissolved |
| TYNEHURST LIMITED | Private company limited by shares | Dissolved |
| TYNEHURST LIMITED | Private company limited by shares | Dissolved |
| TYNEMOUTH ENTERPRISES LIMITED | Private company limited by shares | Dissolved |
| TYNERGY COMPANY LIMITED | Private company limited by shares | Live |