- Dagsmark Petfood
- DAIN Studios
- DataCrunch
- Dataridoo
- Dazzle Rocks
- Deal Room Events
- Dear Lucy
- Deep Sensing Algorithms
- Delight Packaging
- De Motu
- Dental Mammoth
- DeskMe
- Devea Software
- DeviLabs
- Dexmen
- Diafree
- DiagFactor
- Diamondtrap
- DieNo Games
- Digital Minds
- Digital Workforce
- Digizen
- DineAway
- Diory
- Direlight
- Dirica
- Dispelix
- Distillery Ägräs
- Docue
- Doerz
- Do Good Brew co.
- Dogs First
- Dojanga
- Dolea
- Dreamloop Games
- Droppe
- Duara Travels
- DustComb