| BIOsens | |
| Biruza Software | Poltava |
| Bitcom | |
| Bitte | Kiev |
| Blackbird Lab | |
| Blackbox | |
| Blaize | |
| Blender | |
| Bliscore | |
| Blitz SD | |
| BloknotApp | |
| BNC-Service | Kiev |
| Bonum
| |
| Boom | Kiev |
| Bragin Web Design Studio | Kiev |
| Brain Tank | |
| Brain.com.ua | Kiev |
| Brainlab | |
| BramblingTech | |
| Brander | |
| Brave1 | |
| Breeze Software | |
| Bright Nation Creative Studio | |
| BRISE Capital | |
| Broscorp | |
| BS Integrator | Kiev |
| Burkweb | Kiev |
| Burn Büro | |
| Business Ukraine | |
| BusinessViews | |
| ByteCrb | |
| C++ Builder | Kiev |
| Cabina.AI | |
| Cadabra Studio | |
| CADWORK в Украине | Kiev |
| CallTech Outsourcing | |
| CallWay Ukraine | |
| Campus ISP | Kharkiv |
| Carbominer | |
| CardService | |
| Cartsys, LLC | |
| CASES | |
| CDDoma | Kiev |
| Center of Research & Development | |
| Center42 | |
| Center42 Innovation Agency | |
| Centum-D | |
| Challenge Soft | |
| Chatbots.Studio | Dnipropetrovsk |
| Check-online | |