| Company name | Reg. code |
|---|---|
| NEURON OÜ | 12277706 |
| NEURON SYSTEMS OÜ | 10319286 |
| NEURONX-NXBT OÜ kustutatud | 14581058 |
| NEUTRON OÜ | 10753137 |
| 99NEURONS OÜ kustutatud | 11409657 |
| NEURO OÜ | 17096955 |
| NEUTRON GROUP OÜ | 12279355 |
| NEUTRON NETWORKS OÜ | 16173317 |
| NEURO TRAINING OÜ | 16693949 |
| NEURO FORM OÜ kustutatud | 16369859 |
| NEUTRON STAR TECH OÜ | 14249105 |
| NEURONZED OÜ (former name NeuronEx OÜ) | 14370829 |
| NEURONEXT OÜ (former name OÜ NeuronEX Platform) | 14917854 |
| NEURONAL IOCODE OÜ | 16397614 |
| DR BENDITSKIY INSTITUTE OF NEURO BIO TECHNOLOGIES OÜ | 16354148 |
| NEURONAUT OÜ | 17151358 |
| NEURONOVA OÜ | 17171102 |
| DRASHTA SCHOOL OÜ kustutatud (former name NEURO-ACTIV ACADEMY PUBLISHING OÜ) | 16138901 |
| NETRON OÜ kustutatud | 14795026 |
| NERON OÜ | 12916980 |
| NETRON BALTIC OÜ | 11895342 |
| NEIRON TECHNOLOGY OÜ | 17122902 |
| NEARON GRUPP OÜ | 11309232 |
| NETRON MEDICAL OÜ | 12657573 |
| EURON GROUP OÜ kustutatud | 11390323 |
| NERON EHITCARGO OÜ | 16759187 |
| RECEPTACUL OÜ (former name Neuvos OÜ) | 14099367 |
| DEUXON OÜ | 16223819 |
| NEFTON OÜ (former name Nefton Invest OÜ) | 14774857 |
| NEGROS OÜ kustutatud | 14748239 |
| NEUVOS OÜ (former name Birdhouse OÜ) | 14078520 |
| NELARON OÜ | 17270749 |
| MEUROND OÜ | 16944039 |
| NEUFIN OÜ | 17217850 |
| NAMRON OÜ kustutatud | 16335599 |
| NEUSTON OÜ kustutatud | 10275442 |
| MEERON OÜ | 12072789 |
| MERRON OÜ | 12900683 |
| NEURAL OÜ | 12444469 |
| HEDRON OÜ | 14678183 |
| ENORON OÜ kustutatud | 14341897 |
| NEMERON OÜ kustutatud | 10392351 |
| NEUICON OÜ (former name Neuicon UÜ) | 17311201 |
| METRON OÜ | 14381164 |
| NEURIX OÜ | 16070534 |
| LEVRON OÜ | 12733908 |
| HENRON OÜ | 16777363 |
| INDURON OÜ kustutatud | 11763072 |
| ENDRON OÜ | 11187757 |
| NEULIN OÜ kustutatud | 11953536 |