| Diomidis Spinellis | |
| DNHost | Attica |
| Doctoranytime | |
| Domi Pliroforikis | Attica |
| DOPE Studio | |
| Dosmart | |
| DotSee Web Services S.A. | |
| Dotsoft A.E. | Central Macedonia |
| Douleutaras | |
| DPG Digital Media Group | |
| Draxis Environmental S.A. | |
| DS Creative | Attica |
| Dtek NetWorking | |
| Dualshop | Attica |
| Dynamic Promotion E-shop Solutions | Attica |
| Dynamic Site | Attica |
| E Commerce Ltd | Attica |
| E-amo | Attica |
| E-Gadgets | Attica |
| E-genius | Attica |
| E-Miles Creations | Attica |
| e-NIOS | |
| E-Sepia Web Innovation | |
| E-shop.gr | Attica |
| e-Wireless | |
| E.T.E.Θ. Μονοπρόσωπη A.E. | |
| eAnagnosis | Attica |
| Easy.gr | Attica |
| EasyComTech | Attica |
| Eberus | |
| ECOS Consulting | |
| Ecsypno | Attica |
| EDIS.I.NET | Attica |
| Effectlab.gr | Attica |
| efood | |
| egg - enter.grow.go | |
| Ekter S.A. | |
| Elco Vayonis S.A. | |
| Elecnet S.A. | Attica |
| Elemko | |
| Ellasan | Attica |
| Elorus | Attica |
| Elpen S.A. | |
| Emil Kipriotis S.A. | Attica |
| Emimikos | Attica |
| EMTech Global S.A. | |
| Emvis S.A. | |
| Energineering Solutions | |
| Enneas | |
| Enterprise Agile Conference | |