| Company name | Reg. code |
|---|---|
| TERASMAN OÜ | 10750914 |
| TERASMAA OÜ | 11690321 |
| TERASMAA HOLDING OÜ | 16112342 |
| TERASMAA SALES OÜ kustutatud | 12352721 |
| J & T TERASMAA OÜ | 12145347 |
| TERASMÄGI OÜ | 11113629 |
| TERASVAI OÜ | 11639194 |
| TERASDAM OÜ | 14992057 |
| TERATAN OÜ | 10460139 |
| TEROSAN OÜ (former name Terosan UÜ) | 14102655 |
| TERMAN OÜ (former name Terman UÜ) | 14354552 |
| TERZIMAN COMPANY OÜ | 16801541 |
| TRAKSMAN OÜ | 10503021 |
| TRASMAN EHITUS OÜ kustutatud | 11312056 |
| TRASMAN PRODUCTION OÜ | 16303777 |
| KRASMAN OÜ | 14228451 |
| CERAMAN OÜ kustutatud | 10203885 |
| RASMAN OÜ | 11396113 |
| TESMAN OÜ (former name aktsiaselts Tesman) | 10275264 |
| HERSMAN GROUP OÜ kustutatud | 11939275 |
| KRUVIVAI OÜ (former name Terasvai TX OÜ) | 12585566 |
| TESMAN PROJEKT OÜ kustutatud (former name Ökoarendus OÜ) | 16271238 |
| TESMAN HALDUS OÜ (former name Mameto Holding OÜ) | 14366064 |
| RASMAN EHITUS OÜ | 14479319 |
| TESMAN EHITUS OÜ | 14187812 |