| Address.ua | |
| Adimen | |
| Adloonix | |
| Advanced Software Development | |
| Advanced Team | |
| AdvantISS | |
| Adventures Lab | |
| Advision LLC | |
| Adwise | |
| AelitaSoft | Kiev |
| Aero Bavovna | |
| Aestar | |
| AG.Marketing | |
| Agile Eastern Europe Conference | Kiev |
| Agile Ukraine | Kiev |
| Agilie | |
| Agrieye | |
| Agrohub | |
| AI Conference Kyiv | |
| AIMap | |
| Aimtraction Software Agency, LLC | |
| AIN.Capital | |
| AIN.UA | Kiev |
| AirBionicFX | Kiev |
| Ajax Systems | |
| Aksmarket | Kiev |
| AKU Technologies Ltd | Kiev |
| Aldesign Webstudio | Kiev |
| Aleannlab | |
| All day hiRe | |
| All-Ukrainian Association of Computer Clubs | Kiev |
| Allsoft | Kiev |
| Allsubmitter | Kiev |
| Alpha Serve | |
| Alpha Studio | Kiev |
| Alpha-Registrator | Kiev |
| Alphanova | |
| AlphaSSL | Kiev |
| Alter Eco | |
| Alter Systems | |
| AlterEGO Ukraine Ltd | |
| alterstrategy.lab | |
| Altima Ltd | Kiev |
| AltSolution | |
| Alva Commerce | Zakarpattia |
| AlvariumSoft | |
| Am-Bits | |
| AM-Soft | Kiev |
| AMB Group | Kiev |
| Amconsult | |