| Company name | Reg. code |
|---|---|
| INFRAEX OÜ kustutatud | 14362221 |
| INFRAFOX OÜ | 12771062 |
| INFRATEC OÜ | 12624208 |
| INFRAIL OÜ kustutatud | 12665176 |
| INFRARED OÜ (former name Krown Rakvere OÜ) | 16191031 |
| INFRATEK OÜ kustutatud | 10556365 |
| INFRASEC OÜ | 10634312 |
| INFRANET OÜ | 14558384 |
| INFRADA OÜ | 14577157 |
| INFOAED OÜ | 14141939 |
| INFRAS OÜ | 10457692 |
| INFARE OÜ | 14098333 |
| INFREE OÜ | 11561500 |
| INFRAM OÜ | 16731941 |
| INFRAR OÜ | 16843551 |
| INFRAL OÜ | 16310820 |
| INFRAME AGENCY OÜ | 17128796 |
| VITALITY INFRAME OÜ (former name AP KAUBANDUS OÜ) | 14976822 |
| INFOLEX PLUS OÜ | 11960453 |
| INFRAMED EHITUS OÜ | 16719070 |
| INFRARED NPS OÜ kustutatud | 11190133 |
| 6060 INFRA OÜ kustutatud | 16484721 |
| INFRA1 OÜ | 17244545 |
| INFRA42 OÜ (former name Infraiku OÜ) | 14202799 |
| INFRAWEB GLOBAL SOLUTIONS OÜ | 17137737 |
| INFRANET PARTNERS ESTONIA OÜ | 12752254 |
| SUNLY INFRA OÜ kustutatud | 14686633 |
| RTS INFRA OÜ kustutatud | 11712471 |
| METEX INFRA OÜ kustutatud | 14318929 |
| KARLSTON INFRA OÜ | 16540129 |
| TORU INFRA OÜ | 14599822 |
| INFRA EL OÜ (former name Ösel Infra OÜ) | 16791794 |
| CCG INFRA OÜ | 16777400 |
| APH INFRA OÜ | 14716038 |
| FRENDIT INFRA OÜ | 14169961 |
| KK INFRA OÜ | 17274256 |
| AARDLA INFRA OÜ | 16558141 |
| SL INFRA OÜ kustutatud | 16248376 |
| MARGAMANN INFRA OÜ | 17047566 |
| STS INFRA OÜ kustutatud | 14080474 |
| ELDORA INFRA OÜ | 14709156 |
| VIRU INFRA OÜ | 12888315 |
| SPJ INFRA OÜ | 16512423 |
| PIPE INFRA OÜ | 14094594 |
| EP INFRA OÜ | 17080061 |
| MULTIPROFIIL INFRA OÜ kustutatud | 12626816 |
| SANTEKS INFRA OÜ kustutatud | 12450547 |
| ARESTON INFRA OÜ kustutatud | 12587200 |
| GALLEY INFRA OÜ kustutatud | 12408568 |
| INSENERI INFRA OÜ | 16554491 |