| Company name | Reg. code |
|---|---|
| JÄRVAK AS | 10451318 |
| JÄRVA TERMINAAL AS kustutatud | 10133908 |
| JÄRVA HALDUS AS | 10117967 |
| TARISTON AS (former name JÄRVA TEED AS) | 10887843 |
| JÄRVE B&V AS kustutatud | 10128669 |
| LARVIK CELL HOLDING AS (former name Larvik Cell AS) | 980632229 |
| TARVA-EHITUS OÜ (former name AS TARVA EHITUS) | 10080460 |
| ENEFIT INDUSTRY OÜ (former name Enefit Power AS) | 10579981 |