| Business | Phone |
| Canyon Contracting 1012 Rising Ridge Rd, Mt Airy 21771 | (301) 829-1900 |
| Casey & Sons Concrete Constr Mt Airy 21771 | (301) 829-3644 |
| H & H Concrete Construction 1000 E Ridgeville Blvd, Mt Airy 21771 | (410) 549-7363 |
| United Concrete Co Inc 754 W Watersville Rd, Mt Airy 21771 | (301) 607-9355 |