| 4951 | Cubo | 1 |
| 4952 | ЦУКЕР | 1 |
| 4953 | Cult Production | 1 |
| 4954 | Cursor | 1 |
| 4955 | Customar LLC | 1 |
| 4956 | Custom Software Development | 1 |
| 4957 | Цветная зебра | 1 |
| 4958 | CVG | 1 |
| 4959 | Cyan Ocean | 1 |
| 4960 | CyberForm Systems + Soft-works | 1 |
| 4961 | Cyberful | 1 |
| 4962 | Cyberica, веб-студия | 1 |
| 4963 | CYBERNATIV | 1 |
| 4964 | CyberShark | 1 |
| 4965 | Цэбрит | 1 |
| 4966 | D2 Marketing Solutions | 1 |
| 4967 | DAB Creative Agency | 1 |
| 4968 | Дабл-Ю | 1 |
| 4969 | Дайнемик Сан | 1 |
| 4970 | Далее / Галаго | 1 |
| 4971 | damirovna production | 1 |
| 4972 | Danke | 1 |
| 4973 | Dark Frame Production | 1 |
| 4974 | DARR | 1 |
| 4975 | Darta | 1 |
| 4976 | DART Agency | 1 |
| 4977 | Darth Studio | 1 |
| 4978 | Darvin Digital | 1 |
| 4979 | Дашбукет Девелопмент | 1 |
| 4980 | DA!Skipper | 1 |
| 4981 | data | 1 |
| 4982 | DataGrow | 1 |
| 4983 | Data Stories | 1 |
| 4984 | Datmark | 1 |
| 4985 | Dau Relationship Marketing | 1 |
| 4986 | ДавайЗакажем.ру | 1 |
| 4987 | D.A.VINCI | 1 |
| 4988 | Daydwood | 1 |
| 4989 | Daynet | 1 |
| 4990 | Dcomps | 1 |
| 4991 | DD Community | 1 |
| 4992 | DDG | 1 |
| 4993 | DDI-Studio | 1 |
| 4994 | DDS Soft | 1 |
| 4995 | DDVB | 1 |
| 4996 | DeadFox | 1 |
| 4997 | DeadLine.ru | 1 |
| 4998 | DECADE | 1 |
| 4999 | Decima | 1 |
| 5000 | Decision Pro | 1 |
