| Company name | Reg. code |
|---|---|
| BUILDINGPP OÜ | 17224732 |
| BUILDINGFY OÜ kustutatud | 14679314 |
| BUILDING OÜ kustutatud | 12138844 |
| BUILDING24 OÜ kustutatud | 12372876 |
| MALSEMSEN BUILDINGS OÜ (former name Satho Invest OÜ) | 12957826 |
| EJ BUILDINGS OÜ kustutatud | 14288476 |
| HARMONY BUILDINGS OÜ | 14703981 |
| EUROP BUILDINGS OÜ kustutatud | 11810831 |
| INTELLIGENT BUILDINGS OÜ kustutatud | 14862395 |
| HL BUILDINGS OÜ | 14119414 |
| CLT BUILDINGS OÜ (former name Rooehitus OÜ) | 11479514 |
| RL BUILDINGS OÜ | 16233060 |
| RAUDEL BUILDINGS OÜ | 16952412 |
| ELFON BUILDING OÜ (former name Elfon Building UÜ) | 14057587 |
| JLR BUILDING OÜ | 14842688 |
| BUILDING CONSULTANT OÜ kustutatud | 12669441 |
| BUILDING MASTER OÜ kustutatud | 11345386 |
| FIRSTMORE BUILDING OÜ | 12331943 |
| BETON BUILDING OÜ | 12857602 |
| BEFORE BUILDING OÜ | 16849619 |
| BUILDING FUTURE OÜ | 12031508 |
| PIPES BUILDING OÜ kustutatud | 12046496 |
| ART & BUILDING OÜ | 12808121 |
| BUILDING-EUROPE OÜ kustutatud (former name Building-Europe UÜ) | 12930655 |
| IT BUILDING OÜ kustutatud | 14009986 |
| NANO BUILDING OÜ | 12489064 |
| MIHELIS BUILDING OÜ kustutatud (former name OÜ Diligens) | 12048532 |
| SUMMERLAND BUILDING OÜ kustutatud | 11545820 |
| BUILDING CONSULT OÜ kustutatud | 14295648 |
| LUTZ BUILDING OÜ kustutatud | 12628755 |
| EKÄ BUILDING OÜ kustutatud | 12373539 |
| ORIGINAL BUILDING OÜ | 11976106 |
| MARTINS BUILDING OÜ | 12744585 |
| VLEG BUILDING OÜ | 16890792 |
| REXTER BUILDING OÜ kustutatud (former name Rexter Building UÜ) | 14318616 |
| FLOORMAN BUILDING OÜ kustutatud | 11303962 |
| SKROW BUILDING OÜ kustutatud | 10881603 |
| FENIX BUILDING OÜ | 16834055 |
| STANDARD BUILDING OÜ kustutatud | 12162647 |
| LIGHTHOUSE BUILDING OÜ kustutatud | 12134970 |
| BUILDING POWER OÜ kustutatud | 12507922 |
| RAMSIMAR BUILDING OÜ kustutatud | 12500208 |
| HALLS BUILDING OÜ kustutatud | 12566801 |
| TOHTER BUILDING OÜ kustutatud | 12819930 |
| REVERATO BUILDING OÜ (former name Reverato Building UÜ) | 14127610 |
| RUBIKON-BUILDING OÜ kustutatud | 12054490 |
| PREI BUILDING OÜ kustutatud | 16013329 |
| BUILDING BRIDGES OÜ | 16559169 |
| ASAP BUILDING OÜ kustutatud | 11723084 |
| CASLER BUILDING OÜ kustutatud | 11479537 |