| Happy Recruiter S.A. | |
| Happy Web | |
| HappyHosting.ro | Gorj |
| Hart Consulting | |
| Head Hunting IT | Bucharest |
| heap.services | |
| Heaven Solutions | |
| HED Solutions S.R.L. | |
| HEITS.digital | |
| hhconsulting | |
| Hidroelectrica | |
| Hieroglyph Consulting | Bucharest |
| HOFAG Engineering | Prahova |
| HoliSun | Maramureș |
| Hospitality Software Development Services | |
| Host-Age.ro | Bucharest |
| Hosterion | Cluj |
| Hostico | Bucharest |
| HostMonter | Bucharest |
| HostVision S.R.L. | Cluj |
| HostX.ro | Bucharest |
| HostZilla | Dolj |
| Hotiday S.R.L. | |
| How to Web | Bucharest |
| HP Infotech S.R.L. | Bucharest |
| HQ Level Business Services S.R.L. | Timiș |
| HR Time | |
| HungryBytes | |
| HungryBytes | |
| Hype | |
| Hypen | |
| Hypercubic IT Outsourcing | Bucharest |
| HyperSense Software | Bucharest |
| Iaşi It S.R.L. | Iași |
| IBSell NET S.R.L. | |
| ICB Cluj-Napoca | |
| ICD Web | |
| Icetech | Arad |
| ICG Integrated Consulting Group S.R.L. | |
| IcoFX | Bucharest |
| ICS Design | Dolj |
| ID System | Mureș |
| Ideance | Iași |
| IF Soft S.R.L. | |
| IG Artis Media | |
| Ilco Networks S.R.L. | Bucharest |
| iMAKE3D | |
| IMATI Software S.R.L. | |
| IMNR | |
| ImobiliPro | Sibiu |