| Symbol | Name | Country | Exchange |
|---|---|---|---|
| DFORF | D4t4 Solutions Plc | US | US |
| DFTC | Defentect Group Inc | US | OTC |
| DGGXF | DigitalX Ltd | US | OTC |
| DGHI | Digihost Technology Inc | CA | V |
| DH1 | DIVIO TECHNOLOGIES AB | DE | F |
| DLAD | Cabal Communications Corporation | US | US |
| DLEXY | Datalex plc | US | US |
| DLTXF | Dalet Sa | US | OTC |
| DME1 | DESTINY MEDIA DL-001 | DE | F |
| DMRC | Digimarc Corporation | US | NASDAQ |
| DMTR | Deepmatter Group Plc | UK | LSE |
| DND | Dye & Durham Ltd | CA | TO |
| DOC2 | EASE2PAY NV EO -10 | DE | F |
| DOCU | DocuSign, Inc. | US | NASDAQ |
| DOMO | Domo, Inc. | US | NASDAQ |
| DOTD | Dotdigital Group Plc | UK | LSE |
| DOTDF | Dotdigital Group Plc | US | OTC |
| DOX | Doxee S.p.A | IT | MI |
| DPSIP | Decisionpoint | US | OTC |
| DPSM | 3D Pioneer Systems | US | OTC |