| Business | Phone |
| R Brothers Concrete 8251 Lone Tree Way, Brentwood 94513 | (925) 634-0237 |
| Carrillo's Concrete 1720 Green Acres Ln, Brentwood 94513 | (925) 513-8826 |
| Construction Related Solutions 2960 Anderson Ln, Brentwood 94513 | (925) 634-7867 |
| Contra Costa Concrete 4501 Ohara Ave, Brentwood 94513 | (925) 516-2042 |
| D & D Concrete Brentwood 94513 | (925) 513-7918 |
| J Dellinger 2426 Chestnut St, Brentwood 94513 | (925) 516-9664 |
| R M Sherman Co 2960 Anderson Ln, Brentwood 94513 | (925) 625-3323 |