| Name | Region |
|---|---|
| Nikolay Manchev | Sofia |
| Ninefold.ai | |
| NitroPack | Sofia |
| NitroPack | |
| NK Software | Sofia |
| No Limit Software Ltd | Sofia |
| No Limit Software Ltd | |
| Noble Hire | Sofia |
| NOMAD agency | Sofia |
| Noptech | |
| Novatel | Sofia |
| Noxis | Sofia |
| nPloy | Sofia |
| NRJ Soft Ltd | Sofia |
| Numeltech | Sofia |
| NuStage | Sofia |
| NutriGen | |
| nZoom | Sofia |
| Obecto | Sofia |
| Obecto EOOD | Sofia |
| OBG Software | |
| Oblak.bg | Sofia |
| Ocean Investments | |
| ocenime.bg | Sofia |
| Olimex Ltd | |
| Omnitronix | Sofia |
| ONDO | Sofia |
| Onebit Software | Sofia |
| Onload Agency | |
| Ontotext | Sofia |
| Open Source University | Sofia |
| Opencode Systems | Sofia |
| Opencode Systems Ltd | Sofia |
| OpenFest | Sofia |
| Optimall Solutions | Sofia |
| Optimystica | |
| ORAK Engineering | Plovdiv |
| Orange Sputnik | |
| OrangeTrail Ltd | Sofia |
| Orgtechnica Ltd | Silistra |
| ORM.BG | Sofia |
| OutsourceBG Services Ltd | Sofia |
| Ovalpixels, LLC | Sofia |
| OvertAim Coworking Space | Sofia |
| Pagescreen | Sofia |
| Palmo Ltd | Sofia |
| Para | Sofia |
| Paraflow Communications Ltd | Sofia |
| Parallel Bulgaria Ltd | |
| Paynetics AD | Sofia |