| Company name | Reg. code |
|---|---|
| SERV4U OÜ | 12498040 |
| U SERVICES OÜ kustutatud | 16671630 |
| UP SERVICE OÜ | 14933830 |
| UM SERVICES OÜ kustutatud | 11430181 |
| URA SERVICE OÜ | 16772957 |
| UPUP SERVICE OÜ (former name Lemmik cargo OÜ) | 10928358 |
| USS SERVICES OÜ kustutatud (former name USteel OÜ) | 12853682 |
| UMMI SERVICE OÜ | 12019370 |
| UKSED SERVICE OÜ | 14836268 |
| URBAN SERVICE OÜ | 17243126 |
| UNION SERVICE OÜ | 11429427 |
| ULTIMO SERVICE OÜ | 11011610 |
| UP BYGG SERVICE OÜ kustutatud | 12295176 |
| UNITED SERVICE OÜ | 11102703 |
| UNKNOT SERVICES OÜ (former name Reinvent Solutions OÜ) | 14973226 |
| UNINORD SERVICE OÜ | 16898919 |
| UPHOLM SERVICES OÜ | 17054767 |
| ULTIMEL SERVICES OÜ kustutatud | 11488751 |
| UP EQUINE SERVICE OÜ | 12427420 |
| URAL SHIP SERVICE OÜ | 11545139 |
| UNLIMITED SERVICES OÜ | 16002716 |
| UNIVERSAL SERVICES OÜ kustutatud | 12222094 |
| URBASPHER SERVICES OÜ kustutatud | 17022336 |
| U.S. INVEST SERVICES OÜ kustutatud | 11151446 |
| UTM SHIPPING SERVICE OÜ | 12708655 |
| UNION MARINE SERVICE OÜ | 12723287 |
| ULTRAMARIN SERVICES OÜ | 14994004 |
| UNITED TRANS SERVICE OÜ | 10920233 |
| UNITED BALTIC SERVICE OÜ kustutatud | 10464479 |
| UNITE SERVICES ESTONIA OÜ | 16901366 |
| ULTIMATE SPORT SERVICE OÜ | 16727098 |
| UKRAINIAN RENT SERVICE OÜ | 12961880 |
| COMPOTEXA OÜ kustutatud (former name URBAN SERVICE OÜ) | 14444108 |
| UNIQUE DIGITAL SERVICES OÜ kustutatud | 16294908 |
| UNITED MARITIME SERVICES OÜ | 16074087 |
| UNION FINANCIAL SERVICES OÜ kustutatud | 12862511 |
| UEBERSAX ONLINE SERVICES OÜ kustutatud | 14621970 |
| UNITED CORPORATE SERVICES OÜ kustutatud | 16384563 |
| ULTRA ELEKTRIJAAM 2 OÜ (former name Ultra Services OÜ) | 12691759 |
| KISHUMUNDU MAPARASHA OÜ (former name Estrex Service UÜ) | 14246733 |
| UPLIFY ADVERTISING SERVICES OÜ | 16031178 |
| DECALSET OÜ kustutatud (former name Service Company OÜ) | 12914076 |
| PERSONALBEMANNING OÜ kustutatud (former name Scanvic Service OÜ) | 14027238 |
| WESTLUND & CO BALTIC OÜ (former name Stanton Service OÜ) | 14304123 |
| GRÖNA TILLSKOTT OÜ kustutatud (former name Profester Service OÜ) | 14472205 |
| FAMEKS OÜ (former name Fameks Service UÜ) | 14128910 |
| RLV INVEST OÜ (former name SIRE Service OÜ) | 14367715 |
| JECAP VENTURES OÜ kustutatud (former name Maxer Service OÜ) | 14089535 |
| MOINHO OÜ (former name Stanton Service OÜ) | 14229752 |
| CNSHS HOLDING OÜ kustutatud (former name Verox Service OÜ) | 12984131 |