| # | Company name | Role | # of projects |
|---|---|---|---|
| 121 | Riedel Bau GmbH & Co. KG | Construction company | 10 |
| 122 | Rigips GmbH | Construction company | 0 |
| 123 | Rimland Construction | Construction company | 1 |
| 124 | Rinkai Nissan Conctructikon Co.,Ltd. | Construction company | 6 |
| 125 | Rio Ave Investimentos | Construction company | 27 |
| 126 | Rio Construtora | Construction company | 3 |
| 127 | Rio Massa Engenharia LTDA | Construction company | 4 |
| 128 | Rio Novo Incorporações | Construction company | 2 |
| 129 | Rio Verde Engenharia | Construction company | 5 |
| 130 | RioVix Empreendimentos e Construções | Construction company | 3 |
| 131 | Risdon Iron Works | Construction company | 1 |
| 132 | Riva, S.A. | Construction company | 2 |
| 133 | Riverside OÜ | Construction company | 2 |
| 134 | Rizzani de Eccher S.p.A. | Construction company | 3 |
| 135 | RJZ Engenharia | Construction company | 69 |
| 136 | RKM Construtora | Construction company | 5 |
| 137 | RLW4 Builders | Construction company | 1 |
| 138 | RN Incorporadora e Construtora | Construction company | 2 |
| 139 | RNA Corporate | Construction company | 25 |
| 140 | Robert Paulus Construction Company | Construction company | 1 |