| Company name | Reg. code |
|---|---|
| WELDUP OÜ | 12270785 |
| WELDME OÜ | 14086560 |
| WELDRUN OÜ | 11556249 |
| WELDIO OÜ kustutatud | 12869921 |
| WELLUM OÜ | 14776661 |
| WELDIT OÜ | 12673230 |
| WELDER OÜ | 17308015 |
| WELDOG OÜ | 14643204 |
| WELDON OÜ kustutatud | 11508397 |
| WELDAUS OÜ | 17299894 |
| WELDX OÜ | 17031542 |
| WELDO OÜ kustutatud | 16592698 |
| WELDES EHITUS OÜ | 11049021 |
| WELLUX SYSTEMS OÜ kustutatud | 11690433 |
| IM WELDER OÜ kustutatud | 12938208 |
| FOX WELDER OÜ kustutatud | 12411234 |
| I-WELDEX OÜ kustutatud | 12037959 |
| J-WELDER OÜ (former name Reverato Group OÜ) | 14144010 |
| WELDEX GROUP OÜ (former name F.M Welding OÜ) | 14189484 |
| VIP WELDER OÜ | 11166057 |
| EURO WELDER OÜ | 14589389 |
| WELDON HALDUSTEENUSED OÜ (former name Aablu Keskus OÜ) | 12182319 |
| WELDON EHITUS OÜ | 11418553 |
| WELDA TECHNOLOGY OÜ kustutatud | 14050875 |
| WELD24 OÜ | 14463293 |
| WELD OÜ | 16380795 |
| WELP! OÜ | 14987263 |
| WELD TEHNIK OÜ kustutatud | 11522552 |
| EST-WELD OÜ | 14054100 |
| RK-WELD OÜ | 17193859 |
| REM-WELD OÜ | 16552144 |
| VIRUMAA WELD OÜ | 16765816 |
| W WELD OÜ | 12465661 |
| MMT WELD OÜ | 14941864 |
| WELD EUROPE OÜ kustutatud | 16312996 |
| ART-WELD OÜ kustutatud | 11510448 |
| WASP WELD OÜ | 16528080 |
| WELD & TRUST OÜ | 16340287 |
| WELD SPARK OÜ | 16447039 |
| ONE-WELD OÜ | 16620207 |
| STAL WELD OÜ | 16343914 |
| FLAMES WELD OÜ | 16020186 |
| SPHERE WELD OÜ kustutatud | 11100609 |
| WELD & BUILD OÜ | 14062861 |
| WELD METAL OÜ | 12596802 |
| SANDPIPER WELD OÜ | 16073538 |
| FECT-WELD OÜ | 14963663 |
| BALTIC WELD OÜ | 12397113 |
| ME WELD OÜ | 16841718 |
| WELD SERVICE OÜ | 11950963 |