| # | Company name | Role | # of projects |
|---|---|---|---|
| 21 | Cadence Structures | Construction company | 0 |
| 22 | Cádiz Construções | Construction company | 1 |
| 23 | CAENGE - Construção Administração e Engenharia | Construction company | 2 |
| 24 | Cal Empreendimentos | Construction company | 5 |
| 25 | Calcaterra | Construction company | 0 |
| 26 | Caldwell & Evans Construction Company | Construction company | 1 |
| 27 | Caledonian Modular | Construction company | 2 |
| 28 | Caltech Engenharia Ltda | Construction company | 10 |
| 29 | CAM Empreendimentos Imobiliários | Construction company | 10 |
| 30 | Camargo Correa Desenvolvimento Imobiliario | Construction company | 69 |
| 31 | CAMcorp Construction Inc. | Construction company | 1 |
| 32 | Cameron Construtora | Construction company | 8 |
| 33 | Camilotti Construtora | Construction company | 30 |
| 34 | Caminha Empreendimentos ImobiliariosLTDA | Construction company | 8 |
| 35 | Campbell Construction Company | Construction company | 1 |
| 36 | Campbell Construction Company | Construction company | 0 |
| 37 | Campbell/Manix Inc. | Construction company | 2 |
| 38 | Campenella Construction | Construction company | 1 |
| 39 | Campenon Bernard Construction | Construction company | 8 |
| 40 | Campenon Bernard Côte d'Azur | Construction company | 1 |