| Company name | Reg. code |
|---|---|
| FEX24 OÜ | 14503006 |
| FEX-EXPORT OÜ | 10501177 |
| FEXEF OÜ kustutatud | 14646289 |
| FEXCON OÜ | 14129186 |
| FEXILY OÜ kustutatud | 16438483 |
| FEXPERT OÜ | 12365942 |
| SIA FEXER OÜ kustutatud (former name Siaskymotors OÜ) | 16670961 |
| LEX REX LAW OFFICE OÜ | 12144320 |
| FED OÜ | 12345767 |
| WEX OÜ | 16805622 |
| WEX OÜ kustutatud | 12361565 |
| FAX OÜ kustutatud | 10051613 |
| UFEX OÜ | 14250189 |
| 8FEH OÜ | 10053428 |
| MEX OÜ | 10290677 |
| IEX OÜ kustutatud | 14819368 |
| FLEX OÜ kustutatud | 14798616 |
| 12FIX OÜ | 12843287 |
| REX OÜ | 14503064 |
| LEX7 OÜ | 16756378 |
| FEO OÜ | 14477243 |
| NEX OÜ (former name Digistep Service OÜ) | 14708085 |
| FIX 1 OÜ | 14311732 |
| FIX OÜ | 14521719 |
| 3REX OÜ kustutatud | 16363549 |
| FIX24 OÜ kustutatud | 11918468 |
| FEA PROJECTS OÜ (former name FEA Kaubad OÜ) | 12592448 |
| FEUX & CROIX OÜ | 14243172 |
| FIX CAREER OÜ | 16961167 |
| DEX PROTOCOLS OÜ | 16483549 |
| FEC GROUP OÜ | 12639492 |
| DEX.COM OÜ | 14674647 |
| FEW CHAIRS OÜ | 14765545 |
| TEX CONSULTING OÜ kustutatud | 12579873 |
| MEX-PICANTE OÜ | 16786178 |
| MP-FIX OÜ | 14920891 |
| REX-NETWORKS OÜ kustutatud | 11727828 |
| WATER FOX OÜ | 14429043 |
| FEB LOGISTIC OÜ kustutatud | 12556665 |
| FIX ELEKTROONIKA OÜ | 14009074 |
| DIFF LEX OÜ | 14997617 |
| COLORFUL FOX OÜ | 14829771 |
| HEX1708A8 OÜ | 16404260 |
| FOX HOLDING OÜ kustutatud | 12606736 |
| FEC DEVELOPMENTS OÜ kustutatud | 14033612 |
| FOX MEEDIA OÜ | 16554999 |
| RED FOX OÜ | 14225240 |
| FOX&ALESJA OÜ | 12838984 |
| IN- LEX OÜ kustutatud | 14219630 |
| AD FIX OÜ kustutatud | 12790622 |