| Company name | Reg. code |
|---|---|
| INSMEC OÜ | 12904341 |
| INSEC OÜ | 16855442 |
| INSVEN OÜ | 11312398 |
| INSIMER OÜ | 14174910 |
| INSTER OÜ kustutatud | 11461827 |
| INSMAT OÜ | 12892541 |
| INSTREC OÜ | 17015810 |
| INSKEY OÜ | 11360428 |
| INSPECT OÜ | 14716363 |
| INSMEIL OÜ | 14500137 |
| INSTECO OÜ kustutatud | 14445484 |
| INSLER OÜ | 16357721 |
| INSTEK OÜ | 11928069 |
| INSMERK OÜ kustutatud | 10997566 |
| INSPE OÜ | 12014295 |
| INSER OÜ (former name InserVolt OÜ) | 12731996 |
| INSEN OÜ | 12052019 |
| INSTEK INVEST OÜ | 16636958 |
| JES INSPECT OÜ | 14104387 |
| ABC INSPECT OÜ | 16728956 |
| INSPECT MOTORS OÜ | 14127678 |
| INSTEN PROJEKT OÜ | 11479187 |
| GRID INSPECT OÜ | 16787114 |
| INSPECT EST OÜ | 16296913 |
| INSMAT EHITUS OÜ | 17008365 |
| INSEL WOODHOUSE OÜ | 16443030 |
| INSPE NORDIC OÜ | 14250730 |
| INSER INFRA OÜ | 16735943 |
| INSEL MILL OÜ (former name OÜ Insel Woodhouse) | 11894147 |
| INSER VOLT OÜ | 17353530 |
| INSER SERVICE OÜ | 14948300 |
| INSEK GRUPP OÜ | 16146378 |
| A.R. INSPECT OÜ kustutatud | 12520791 |
| INTMEC OÜ | 11517568 |
| INGMER OÜ | 12020508 |
| INNMER OÜ | 11945362 |
| INITEC OÜ | 10979083 |
| INVME OÜ kustutatud (former name OÜ OTMAX) | 12861517 |
| INDEC OÜ | 14365413 |
| INMET OÜ | 10008847 |
| INNEC OÜ (former name Energotech OÜ) | 11644930 |
| IDSEC OÜ | 14181407 |
| INVMED KK OÜ | 16339215 |
| INOREC MARINE OÜ | 16140387 |
| INTEC EHITUS OÜ | 10729481 |
| ISMER KONSUL OÜ | 14167695 |
| SENEKA INDEC OÜ (former name AsfarEurope OÜ) | 14872531 |
| Q ITSEC OÜ | 16149796 |
| INTEC SOLUTIONS OÜ | 10863469 |
| INTEC AUTO OÜ kustutatud | 12706780 |