| Company name | Reg. code |
|---|---|
| NSO OÜ (former name A.T.B OÜ) | 16199110 |
| NSORCELL OÜ kustutatud | 16374777 |
| DSÕ OÜ | 16966874 |
| NSM5 OÜ | 14902752 |
| NEO OÜ | 11971801 |
| NSG OÜ | 16892006 |
| ENSO 24 OÜ | 16791156 |
| OSO OÜ | 12229937 |
| NSP3717 OÜ | 14282901 |
| RSO OÜ | 14019865 |
| NESO OÜ | 12943161 |
| ANSO OÜ | 16122484 |
| NAO OÜ | 12601650 |
| NSV OÜ | 16941302 |
| NSR OÜ | 14114167 |
| NST OÜ (former name NS Passive Invest OÜ) | 14224105 |
| NSB HOLDING OÜ | 12985107 |
| ENSO LEADS OÜ | 16536576 |
| PSO CONSULTING OÜ | 16943347 |
| NSV VARAD OÜ kustutatud | 12417047 |
| CSO SERVICE OÜ | 17473659 |
| NEO X OÜ | 16574246 |
| NSV PARTNERS OÜ | 16600989 |
| NST DEVELOPMENT OÜ | 14953465 |
| NÕO AKEN OÜ | 14601051 |
| NSR LOGISTICS OÜ kustutatud | 14089297 |
| NÕO APTEEK OÜ | 10039397 |
| SEMTRUVARTO BSO OÜ (former name WGA Wood OÜ) | 14805842 |
| ISO PROFIT OÜ | 14313116 |
| NSA INVEST OÜ | 16182397 |
| NEO MOLECULES OÜ | 17132875 |
| KSO KAPITAL OÜ | 16439422 |
| NOS ENFANTS OÜ | 14636598 |
| NSP TEENUSED OÜ | 16468834 |
| NSB CONSULT OÜ | 12994141 |
| NSF FINANTS OÜ | 11747245 |
| NEO ELEMENTUM OÜ (former name Bio Elementus OÜ) | 14310201 |
| NEO PLUS OÜ | 10499093 |
| NSQ INVEST OÜ kustutatud | 12177560 |
| NEO RESTORANID OÜ | 16161981 |
| NSB AGENCY OÜ kustutatud | 12216283 |
| EL OSO OÜ | 14026262 |
| NSP INTERNATIONAL OÜ | 10883325 |
| NÕO PUIT OÜ kustutatud | 12476699 |
| NAO-EST OÜ kustutatud | 10186388 |
| NÕO MUDILA OÜ kustutatud | 12065335 |
| NSR AUTOMAATIKA OÜ | 12766534 |
| ERI-ISO OÜ kustutatud | 10167534 |
| ISO PRO OÜ kustutatud | 12289135 |
| NÕO LIHATÖÖSTUS OÜ | 10005487 |