| Company name | Reg. code |
|---|---|
| TRIGONEST OÜ | 11451680 |
| TRIOBEST OÜ (former name Triobest UÜ) | 14459096 |
| TRIGONER OÜ kustutatud (former name Osaühing Trigoner) | 10906240 |
| TRINEST ADVISORY OÜ | 17169737 |
| TREGONET OÜ | 11638160 |
| PARKLAJOON OÜ kustutatud (former name Triobest OÜ) | 14245299 |