| Business | Phone |
| Carrollton Concrete Mix 2814 Carrollton Rd, Saginaw 48604 | (989) 753-7737 |
| Saginaw Core Sand Co 2924 Carrollton Rd, Saginaw 48604 | (989) 752-7139 |
| Saginaw Rock Products Co 1701 N 1st St, Saginaw 48601 | (989) 754-6589 |
| R & R Ready Mix 6050 Melbourne Rd, Saginaw 48604 | (989) 753-3862 |