| # | Company name | Role | # of projects |
|---|---|---|---|
| 1 | Kaptechnostroy | Facade supplier | 6 |
| 2 | Kleinewelt Аrchitekten | Architect | 4 |
| 3 | Knight Frank | Real estate agent | 4 |
| 4 | Kolositsin's Architectural Bureau | Architect | 1 |
| 5 | KONE Lifts | Elevator supplier | 28 |
| 6 | KONTI Group | Developer | 20 |
| 7 | Korston Group | Developer | 3 |
| 8 | Krost Industrial & Building Company | General contractor | 18 |
| 9 | Kuznetskiy Most Development | Developer | 0 |
| 10 | Kvartal JSC | Construction company | 13 |