| Deluxe | Dnipropetrovsk |
| Demi | |
| Demigos | |
| Deshevshe.net.ua | Kiev |
| Design To XHTML | Kiev |
| Design.kharkov.ua | Kharkiv |
| Desna Systems Ltd | Kiev |
| Dev-3 | Kharkiv |
| Devellar | |
| Deviark, LLC | |
| DeviceVoice, LLC | |
| Devicom | Kiev |
| DevlTrust | Kiev |
| Devos Software | Kharkiv |
| Devox Software | Kiev |
| DevPuzzle | Kiev |
| DevRain, LLC | Kiev |
| DevSoft | |
| Devstream.mobi | Kiev |
| Devtrix | Ivano-Frankivsk |
| DiaWest | Kiev |
| Digital Future | |
| Digital-World.in.ua | Kiev |
| DiGitalSoft | Kiev |
| DipDev Studio | Kharkiv |
| DistanceMatrix.ai | |
| Div-Art | Rivne |
| Diversido | Kiev |
| Diya | Kiev |
| Dmitriy Pozdnyakov | Zaporizhzhia |
| DneprWeb | Kharkiv |
| Dnipropetrovsk Investment Agency | |
| Document.Online | |
| Domen.com.ua | Kiev |
| Domino-бухгалтерия | Kiev |
| dops.digital | Lviv |
| DotCode | |
| DOU.ua | |
| DPF Tech | |
| Dr. Web | Kiev |
| Drillapps, LLC | |
| Drone UA | |
| DSL-Group | Kiev |
| DTEL-IX | Kiev |
| Dumka | |
| DuxTeam | Kharkiv |
| Dynamic Studio | Kiev |
| Dyvotech | |
| DzSoft | Poltava |
| Dzvonik | Kiev |