| # | Company name | Role | # of projects |
|---|---|---|---|
| 1 | R Carvalho Construtora | Construction company | 7 |
| 2 | R G Carter | Construction company | 1 |
| 3 | R Yasbek | Construction company | 1 |
| 4 | R Yazbek Desenvolvimento Imobiliário Ltda. | Construction company | 35 |
| 5 | R. & S. Sollitt | Construction company | 2 |
| 6 | R. C. Mahon Company | Construction company | 1 |
| 7 | R. Correa Engenharia | Construction company | 10 |
| 8 | R. Freitas Empreendimentos | Construction company | 5 |
| 9 | R. L. Fauss Construction Co. | Construction company | 0 |
| 10 | R. McMillan | Construction company | 1 |
| 11 | R. Stefan S.A. | Construction company | 1 |
| 12 | R.A. Burch Construction Co., Inc. | Construction company | 2 |
| 13 | R.A. Morley Company, Inc. | Construction company | 1 |
| 14 | R.C. Johnson Construction Company | Construction company | 1 |
| 15 | R.C. Wegman Construction | Construction company | 4 |
| 16 | R.D. Construction Ltd. | Construction company | 1 |
| 17 | R.E. Dailey & Company | Construction company | 19 |
| 18 | R.G. Brinkmann Construction Company | Construction company | 26 |
| 19 | R.H. Reese | Construction company | 1 |
| 20 | R.L. Dalal & Company | Construction company | 6 |