| Ettevõtte nimi | Reg. kood |
|---|---|
| STOEL OÜ | 10694914 |
| STEEL OÜ | 14225524 |
| STEEL BUCKLE OÜ | 16060820 |
| MARVE STEEL OÜ | 14687377 |
| RR STEEL OÜ | 14106357 |
| STEEL CUBE OÜ | 16962936 |
| PLEKK & STEEL OÜ | 14450422 |
| MAGNUM STEEL OÜ | 11726444 |
| FOREST STEEL OÜ (endine nimi O&O Holding OÜ) | 11242516 |
| INNOVATIVE STEEL OÜ | 17192021 |
| STEEL MINDS OÜ | 17505690 |
| HAPPY STEEL OÜ (endine nimi Donna & Jan Baltora OÜ) | 12681293 |
| TMT-STEEL OÜ | 14337690 |
| STEEL CRAFTS OÜ (endine nimi Centurion Welding OÜ) | 12316524 |
| SAARE STEEL OÜ | 14304488 |
| REINFORCEMENT STEEL OÜ | 12465750 |
| VON STAEL OÜ | 17353116 |
| STEEL SERVICE OÜ | 11900095 |
| VESTA STEEL OÜ (endine nimi Car Friend OÜ) | 12512797 |
| DAN-STEEL OÜ (endine nimi OÜ VOGAN) | 11405763 |
| EV-STEEL OÜ | 12158445 |
| VIRU STEEL OÜ | 12967523 |
| RV STEEL OÜ (endine nimi Iru Parkla OÜ) | 12979228 |
| STEEL WAVE OÜ | 16555332 |
| INOX-STEEL OÜ | 16569883 |
| L-STEEL OÜ | 17018547 |
| EPL STEEL OÜ (endine nimi Nord Walhalla OÜ) | 16565632 |
| ICE STEEL OÜ | 14634760 |
| GREEN STEEL OÜ (endine nimi OÜ PVV BUILDING) | 12451699 |
| IL STEEL OÜ | 12957217 |
| STEEL SOLUTIONS OÜ | 14359093 |
| STEEL GEAR OÜ | 17381087 |
| STEEL EQUIPMENT OÜ (endine nimi Weld IWE OÜ) | 12792360 |
| YANA STEEL OÜ | 17352298 |
| ZNL STEEL OÜ | 10906285 |
| SOLID STEEL OÜ | 17484960 |
| SPI STEEL OÜ | 17441636 |
| NV STEEL OÜ | 10855932 |
| ESTRUS STEEL OÜ | 11428528 |
| METEST STEEL OÜ | 14393581 |
| AMERON STEEL OÜ | 14708398 |
| STEEL DUDES OÜ (endine nimi Rahakoguja OÜ) | 11714565 |
| ESTNOR STEEL OÜ | 16548987 |
| NORTHERN STEEL OÜ (endine nimi NOJ GROUP OÜ) | 14537471 |
| DUGLAS STEEL OÜ | 14546671 |
| LNEX STEEL OÜ | 17472594 |
| STEEL ELEMENT OÜ | 14604598 |
| SIAL STEEL OÜ | 16133766 |
| STEEL PROTECTION OÜ | 17216939 |
| ANNMARI STEEL OÜ | 17013716 |