| Easyhost | Bucharest |
| eAtlas | Timiș |
| Eau de Web | |
| EazyCode | |
| EazyCode | |
| ECDL România | |
| Economis | Bucharest |
| Ediris.ro | Mureș |
| EDUS.ro | |
| EEU Software | Bucharest |
| Ejobs.ro | Bucharest |
| Elastic Studio | |
| Elcom International | Bistrița-Năsăud |
| eLearning & Software Ltd | |
| Electro Mobile S.R.L. | Maramureș |
| Electronic Design & Consulting Group - Informatica S.R.L. | Bucharest |
| ELIAN | |
| Elite Pro S.R.L. | Bucharest |
| Elstar | Bihor |
| ELTOP Electronics | Bucharest |
| Elysian Software | |
| eMAG.ro | Bucharest |
| Emerigos | Bihor |
| Emro Web Ventures S.R.L. | |
| Emy WebSoft S.R.L. | Bucharest |
| EmySoft.ro | Bucharest |
| eName.ro | Bucharest |
| End Soft Design S.R.L. | Bucharest |
| eQuilibrium | |
| ERP Contact | Cluj |
| ESET, spol. s r.o. | Bucharest |
| eSITEpc | Bucharest |
| ESoftware System Support | |
| Essensys | |
| Essensys Software | |
| Esys-Comm | |
| eTelecom.ro | Bucharest |
| EuPlătesc.ro | Bucharest |
| Euro Domenii | Olt |
| Euro-Tel S.R.L. | Brașov |
| Eurodata Serv S.R.L. | Bucharest |
| Eurodata Serv S.R.L. | |
| Euroweb România | Bucharest |
| Evidweb | Bucharest |
| EvoHost.ro | Ilfov |
| Evolve Media | Iași |
| evoMAG.ro | Bucharest |
| Evozon | Cluj |
| EXE Software | |
| EXETech Computers | Hunedoara |