| # | Company name | Role | # of projects |
|---|---|---|---|
| 381 | Stroyclass | Construction company | 0 |
| 382 | Stroyinvest | Construction company | 3 |
| 383 | StroyInvest K | Construction company | 4 |
| 384 | Stroyinvest-SK | Construction company | 3 |
| 385 | Stroyservice | Construction company | 5 |
| 386 | Stroytekhsis, OOO | Construction company | 4 |
| 387 | Stroyteks | Construction company | 31 |
| 388 | Structure Tone, Inc. | Construction company | 18 |
| 389 | Structure Tone, Inc. | Construction company | 2 |
| 390 | Strug | Construction company | 17 |
| 391 | Strukton | Construction company | 27 |
| 392 | Strutural Engenharia | Construction company | 6 |
| 393 | STS Company | Construction company | 7 |
| 394 | Stuart Olson | Construction company | 26 |
| 395 | Stuhlberger | Construction company | 49 |
| 396 | Stylos Engenharia | Construction company | 1 |
| 397 | SU-13 | Construction company | 38 |
| 398 | SU-6 | Construction company | 2 |
| 399 | Suassuna Fernandes Engenharia | Construction company | 1 |
| 400 | SUBTERRA Engineering and Construction Corp | Construction company | 1 |