| # | Company name | Role | # of projects |
|---|---|---|---|
| 81 | Acopi Construtora | Construction company | 6 |
| 82 | Acoplan Construções e Incorporações | Construction company | 15 |
| 83 | Acoval S.A. | Construction company | 0 |
| 84 | ACRE Group | Construction company | 1 |
| 85 | Acrópole Construções | Construction company | 22 |
| 86 | ACS Desenvolvimento Imobiliário | Construction company | 29 |
| 87 | Acsa Agbar construcción S.A. | Construction company | 1 |
| 88 | Actco General Contracting Company, L.L.C. | Construction company | 1 |
| 89 | Actitur Construção e Incorporação | Construction company | 1 |
| 90 | ACW Arabian Civil Works Company | Construction company | 4 |
| 91 | Adam Bauer Bauunternehmung GmbH & Co KG | Construction company | 0 |
| 92 | Adam Hörnig Baugesellschaft mbH & Co. KG | Construction company | 7 |
| 93 | Adav Construction Ltd. | Construction company | 1 |
| 94 | Adjustable Joist Company | Construction company | 1 |
| 95 | Adlerbau GmbH | Construction company | 0 |
| 96 | Admo Construtora e Administradora de Mão de Obra LTDA | Construction company | 1 |
| 97 | Adobbe | Construction company | 4 |
| 98 | Adolf Lupp GmbH & Co KG | Construction company | 5 |
| 99 | Adolfo Starosta Construções e Incorporações Ltda. | Construction company | 2 |
| 100 | Adriaans Bouwgroep | Construction company | 1 |