| Company name | Reg. code |
|---|---|
| WELDOG OÜ | 14643204 |
| WELDON OÜ kustutatud | 11508397 |
| WELDO OÜ kustutatud | 16592698 |
| WELDON HALDUSTEENUSED OÜ (former name Aablu Keskus OÜ) | 12182319 |
| WELDON EHITUS OÜ | 11418553 |
| WELDME OÜ | 14086560 |
| WELDIO OÜ kustutatud | 12869921 |
| WELDIT OÜ | 12673230 |
| WELCON OÜ | 16140714 |
| WELDER OÜ | 17308015 |
| WELTON OÜ | 11366170 |
| WELDING OÜ | 12087791 |
| WELDKON OÜ kustutatud | 14812121 |
| WELDUP OÜ | 12270785 |
| WELDBOR OÜ | 16735092 |
| WELDCOM OÜ | 11698682 |
| WELDFOX OÜ | 16247085 |
| WELBORG OÜ | 14665855 |
| WELD WELDING WORLD.EE OÜ | 16075448 |
| BALTIX WELDING OÜ | 17283736 |
| WELDES EHITUS OÜ | 11049021 |
| WELDING WORKS OÜ kustutatud | 12701446 |
| MIPE WELDING OÜ kustutatud | 16879158 |
| SAL WELDING OÜ | 16088072 |
| WELING REISID OÜ | 11522240 |
| ANESKO WELDING OÜ kustutatud | 11996310 |
| SSK WELDING OÜ | 14330161 |
| WELDING NORDICS OÜ kustutatud (former name BOACE Nordics OÜ) | 14078804 |
| WELKON EESTI OÜ kustutatud | 10630311 |
| WELDONI VARAHALDUS OÜ | 10987823 |
| BA WELDING OÜ | 16318632 |
| ESTELMET WELDING OÜ kustutatud | 12155386 |
| WELDING & BORING OÜ kustutatud | 12727606 |
| IM WELDER OÜ kustutatud | 12938208 |
| MKE WELDING OÜ | 17086276 |
| DAV WELDING OÜ | 12802064 |
| WELDING GROUP OÜ (former name Osaühing Welding Grupp) | 10577522 |
| FOX WELDER OÜ kustutatud | 12411234 |
| VOLKER-WELDING OÜ | 14370019 |
| LT WELDING OÜ | 14768348 |
| I-WELDEX OÜ kustutatud | 12037959 |
| TP WELDING OÜ | 11898671 |
| TKK WELDING OÜ | 17401938 |
| WELTON ENTERPRISES OÜ | 11483792 |
| ALP WELDING OÜ | 12844826 |
| WELDING CONSTRUCTIONS OÜ | 10233596 |
| WELDING MANAGEMENT OÜ | 14417554 |
| J-WELDER OÜ (former name Reverato Group OÜ) | 14144010 |
| WELDING VISION OÜ | 12947710 |
| WELDING SOLUTIONS OÜ | 14672660 |