| Ettevõtte nimi | Reg. kood |
|---|---|
| B-SYSTEMS OÜ | 17323351 |
| B.EST PIPE SYSTEMS OÜ kustutatud | 12512060 |
| B2B SYSTEM OÜ kustutatud | 12948968 |
| COMPOTEXA OÜ kustutatud (endine nimi Sgb systems OÜ) | 14444108 |
| BW SYSTEMS OÜ (endine nimi FXTechnology OÜ) | 14736644 |
| BAC SYSTEMS OÜ | 12201554 |
| BIT SYSTEMS OÜ | 10532577 |
| BMK SYSTEMS OÜ kustutatud | 16408157 |
| BHA SYSTEMS OÜ | 12623373 |
| BCA SYSTEMS OÜ kustutatud | 10955898 |
| BRIX SYSTEMS OÜ | 10906210 |
| BLUE SYSTEMS OÜ | 10574920 |
| BEST SYSTEMS OÜ | 10587064 |
| BENYO SYSTEMS OÜ | 17345826 |
| BYTEX SYSTEMS OÜ kustutatud | 12955649 |
| BARDO SYSTEMS OÜ | 17097073 |
| BONELL SYSTEMS OÜ kustutatud (endine nimi AK SÜSTEEMID OÜ) | 10236324 |
| BALTIC SYSTEMS OÜ | 12784886 |
| BPROOF SYSTEMS OÜ | 17380981 |
| BONNER SYSTEMS OÜ | 10981045 |
| DE BUCK SYSTEMS OÜ | 17081729 |
| TRAVEL SYSTEMS OÜ (endine nimi Business Systems OÜ) | 14078247 |
| GATE BTM SYSTEMS OÜ kustutatud | 14550359 |
| BIFROST SYSTEMS OÜ | 16193751 |
| BARENTS SYSTEMS OÜ kustutatud | 12147530 |
| BOOKING SYSTEMS OÜ | 14259055 |
| BROCKNER SYSTEMS OÜ | 12447083 |
| BLUEBAND SYSTEMS OÜ | 16580347 |
| BLUEPEAK SYSTEMS OÜ kustutatud | 14231915 |
| BMG POWER SYSTEMS OÜ (endine nimi BMG Diesel Center OÜ) | 11725966 |
| BALTIC BEVERAGE SYSTEMS OÜ | 17392624 |
| BALTIC ICT SYSTEMS OÜ | 12737622 |
| MAIL SYSTEMS BALTI OÜ kustutatud | 10008646 |
| BLACKROSE SYSTEMS OÜ kustutatud | 11660722 |
| BALTIC AIR SYSTEMS OÜ | 11694974 |
| BALTIC SODA BLAST SYSTEMS OÜ kustutatud | 11960817 |
| BALTIC CARD SYSTEMS OÜ | 14139210 |
| BLOCKCHAIN SYSTEMS OÜ kustutatud | 14723765 |
| IMPEX SYSTEMS BALTIC OÜ kustutatud | 12648344 |
| EST BUILDING SYSTEMS OÜ kustutatud | 11773113 |
| SOLAR RADIANT EST OÜ (endine nimi Bluemark Systems OÜ) | 14793563 |
| LEGRAND ESTONIA OÜ (endine nimi Ensto Building Systems OÜ) | 11051696 |
| QLOUD TECHNOLOGIES OÜ (endine nimi blockchain 5.0 OÜ) | 14604859 |
| NSIKYE KATOZHO OÜ (endine nimi Bbanky Systems OÜ) | 14874607 |
| INFINITUM STRIKE OÜ (endine nimi Smart Battlespace Systems OÜ) | 14872637 |
| BALTIC MARINE SYSTEMS OÜ (endine nimi Baltic Marine Engineering OÜ) | 14942349 |
| INDICO SYSTEMS BALTIC OÜ | 11227698 |
| SAPA BUILDING SYSTEMS OÜ kustutatud | 10894642 |
| BALTIC CLIMATE SYSTEMS OÜ | 14850759 |
| BALTIC HEATING SYSTEMS OÜ | 11091951 |