| Company name | Reg. code |
|---|---|
| JELSON OÜ | 14816107 |
| JETSON OÜ | 11627564 |
| VELSON OÜ | 12379358 |
| ELSON OÜ | 16136256 |
| JELRIN OÜ | 14506269 |
| NELSON HOLDING OÜ | 17263131 |
| NET NELSON OÜ kustutatud | 10544072 |
| NELSON TIMING OÜ | 11687632 |
| BWD TRANSPORT OÜ (former name Jelsoft OÜ) | 14504359 |
| MR. TIPSY TOUR OÜ (former name Jellona OÜ) | 16666988 |
| JELLOU FERDINAND OÜ | 14274741 |
| FELMON OÜ | 11579109 |
| HELCON OÜ | 10008578 |
| BELDON OÜ | 16240373 |
| FELSEN OÜ (former name FelSan OÜ) | 14692496 |
| FELDON OÜ kustutatud | 12993555 |
| BELLON OÜ | 17136904 |
| GELTON OÜ kustutatud | 10368617 |
| FIELSON OÜ kustutatud | 16747244 |
| CELSIN OÜ | 16353143 |
| BELSUN OÜ | 14396846 |
| AEKSON OÜ | 10793467 |
| HELSAN OÜ | 12709991 |
| ALESON OÜ | 16716918 |
| DELSTON OÜ kustutatud | 11281383 |
| BELSTON OÜ | 17162847 |
| NELSON'S EESTI OÜ kustutatud | 12189557 |
| JELAN CONSULT OÜ | 16139444 |
| JELS OÜ | 16028532 |
| HELION TRADING OÜ (former name Werrobau OÜ) | 12642175 |
| KMW-HELPSON OÜ kustutatud | 12804548 |
| GELION TRADE OÜ | 12638908 |
| HELION TRUST OÜ | 16229101 |
| ADELSON ADVISORY OÜ | 12415031 |
| HELION GROUP OÜ (former name Helion OÜ) | 12493396 |
| HELION GRUPP OÜ kustutatud | 10680674 |
| GILSON TRADE OÜ kustutatud | 11211303 |
| DENSON GROUP OÜ kustutatud | 14782236 |
| CELION ESTONIA OÜ | 17472989 |
| HELSRON SAMPS OÜ (former name Best Plan OÜ) | 12862238 |
| BESSON HOLDING OÜ kustutatud | 10620991 |
| ABELSON SPORTS OÜ | 17106079 |
| COLSON BALTIC OÜ | 12758663 |
| BELLON INVEST OÜ kustutatud | 11276538 |
| HELSTON TRADE OÜ | 10500034 |
| GERSON INVEST OÜ kustutatud | 10145745 |
| ELLSON FOOD OÜ | 16970634 |
| HELION EHITUS OÜ | 11141471 |
| HELMON KONSULTATSIOONID OÜ | 11207804 |
| HELDON DESIGNS OÜ | 14450283 |