| Company name | Reg. code |
|---|---|
| TESTRA INVEST OÜ | 14631773 |
| TESLAR INVEST OÜ kustutatud (former name OÜ Middle East Petroltrans) | 10966927 |
| TESEMA INVEST OÜ kustutatud | 10193158 |
| TESTER INVEST OÜ | 12637085 |
| TESTER INVEST INFRA OÜ | 16619434 |
| TERRA TRADE KV OÜ (former name OÜ STMP Invest) | 12868703 |