| DComps | |
| DDosEXPERT | Moscow |
| Deliver | |
| Delphi Russian Knowledge Base | Moscow |
| DeltaSoft Computing, Inc. | Moscow |
| Demis Group | |
| Dental Soft | Moscow |
| Dephan | |
| Dephan, LLC | |
| Destiny.Games | |
| Devexperts | Saint Petersburg |
| Devpractice | |
| DG Software | Luhansk People's Republic |
| DI Group | Moscow |
| Didan | Moscow |
| Difway Studio | Saint Petersburg |
| Digidom | Saint Petersburg |
| Digispot Alliance | |
| Digital Alliance | |
| Digital Design | |
| Digital Experience | |
| Digital Horizon | Moscow |
| Digital Lab | |
| Digital Mind Development | |
| Digital Nomads | Tomsk |
| Digital October | |
| Digital Telecommunicationn Systems | Moscow |
| Digital Zone | |
| DigitalHR | |
| DigitalRazor | Moscow |
| diHouse | Moscow |
| DirectLine | Novosibirsk |
| Discom Network Technologies | Moscow |
| Disruptive.vc | Moscow |
| DMT Software | Moscow |
| Doczilla | |
| DomainContext, Inc. | Moscow |
| Don State Agrarian University | |
| Double Data | |
| Double s electronics | Vologda |
| Download Software | Moscow |
| Dragondatabasesoft | Moscow |
| DrBobah.com | Mari El |
| DRD Biotech | |
| Dreampix | |
| Drive Software Company | Tver |
| DriverPack Solution | Moscow |
| Drupal Россия | Moscow |
| DSM Telecom | Moscow |
| Duality Software | Saint Petersburg |