| Company name | Reg. code |
|---|---|
| FORTREST OÜ | 16209110 |
| FORTRENT OÜ kustutatud | 16021725 |
| FORTRESS OÜ | 12739704 |
| FORREST OÜ kustutatud | 14535325 |
| FORREST OÜ | 17447685 |
| FORTRIST HOLDING OÜ | 16437779 |
| DIGITAL FORTRESS OÜ kustutatud | 16216535 |
| SOUND FORTRESS OÜ | 11403675 |
| FORTRESS MAXIMUS OÜ kustutatud | 12101634 |
| INTEGRAL FORTRESS OÜ kustutatud | 14133302 |
| ETERNAL FORTRESS OÜ | 14974740 |
| "FORTEST REISID" OÜ (former name Fortest Reisid) | 10211933 |
| FORREST PROFF OÜ | 17476623 |
| FORREST AGRO OÜ (former name Black Crypto OÜ) | 14474032 |
| FORTRESS OCCIDENT HOLDING OÜ kustutatud | 12950014 |
| SPIRE FORTRESS TECHNOLOGIES OÜ | 12267435 |
| FORREST GRUPP PLUS OÜ | 14281379 |
| PINK FOREST OÜ (former name Pink Forrest OÜ) | 16347846 |
| FORBRIST OÜ | 10891129 |
| FORTERESTO OÜ | 14415399 |
| FORFOREST OÜ | 14973396 |
| FORTREAM OÜ | 16127642 |
| FOROVEST OÜ (former name Yo Mana OÜ) | 16074302 |
| FORTEIST OÜ | 16158750 |
| FORUMEST OÜ | 14650552 |
| FORTUNEST OÜ | 14094565 |
| ZAUM STUDIO OÜ (former name Fortress Occident OÜ) | 12929505 |
| FORTNET OÜ | 10922829 |
| FORBEST OÜ | 11533834 |
| FORTESS OÜ | 14025535 |
| FORBEST 917 OÜ | 14624494 |
| FORTESQ OÜ | 12635367 |
| 1FOREST OÜ kustutatud (former name OÜ GORMILON) | 14170616 |
| RABA FORRESTS OÜ | 16183847 |
| FORTREXS GLOBAL OÜ | 14610630 |
| FORBEST AUTO OÜ | 12617415 |
| SAVANTE FORTIST OÜ (former name HobiFin OÜ) | 16046961 |
| FOREST4NORDIC OÜ | 16414838 |
| SOPHIA FOREST OÜ kustutatud (former name OÜ Purreto-Purtsa Põllud ja Metsad) | 10334825 |
| TAMI FOREST OÜ | 14817070 |
| FOREST TRANSIT OÜ kustutatud (former name TransBaltic Estonia OÜ) | 12268506 |
| FOREST FUTURE OÜ | 16440356 |
| RANDOM FOREST OÜ | 14743851 |
| EUROPEAN FOREST 2 OÜ kustutatud | 10828585 |
| PURE FOREST OÜ | 12660531 |
| FOREST RANGE OÜ kustutatud | 12227826 |
| SEA FOREST OÜ kustutatud | 12804531 |
| LARCH FOREST OÜ | 12501078 |
| MMC FOREST OÜ | 12073381 |
| RAATUSE FOREST OÜ | 17337488 |