| Business | Phone |
| Allegheny Industries 402 Center St, Mt Airy 21771 | (301) 829-1300 |
| Bowerman Construction 13406 Brandon Manor Ct, Mt Airy 21771 | (301) 829-7390 |
| Briddell Construction Co 8002 Dollyhyde Rd # C, Mt Airy 21771 | (301) 831-5288 |
| Brown Construction 2425 Flag Marsh Rd, Mt Airy 21771 | (410) 795-6279 |
| N J Chaconas Jr 323 E Watersville Rd, Mt Airy 21771 | (301) 831-7497 |
| Curtis Contractors & Assoc 17501 Old Frederick Rd, Mt Airy 21771 | (301) 831-7734 |
| Dasilva Construction 3525 Gilboa Dr, Mt Airy 21771 | (301) 829-0570 |
| Folb Builders 5143 Woodville Rd, Mt Airy 21771 | (301) 831-5298 |
| Frall Developers 13992 Penn Shop Rd, Mt Airy 21771 | (301) 829-1213 |
| Genesis Builders 13715 Unionville Rd, Mt Airy 21771 | (301) 829-3153 |
| Gwm Contr & Home Improvement 12558 Quiet Stream Ct, Mt Airy 21771 | (301) 831-3019 |
| Hauptman Builders 2945 Lonesome Dove Rd, Mt Airy 21771 | (301) 831-0711 |
| Martin Builders Inc 4550 Mill Bottom Rd, Mt Airy 21771 | (301) 831-7000 |
| Matrix Concrete Foundations 915 Village Gate Dr, Mt Airy 21771 | (301) 829-3025 |
| Rollins Construction Co Inc 1302 Rising Ridge Rd # 9, Mt Airy 21771 | (301) 831-5031 |
| Steel Span Structures 2802 Flag Marsh Rd, Mt Airy 21771 | (301) 829-2666 |
| Trigger & Son Construction Inc 13890 Foggy Bottom Ct, Mt Airy 21771 | (301) 829-1943 |
| Vernon Brake & Sons Inc 4213 Rolling Acres Dr, Mt Airy 21771 | (301) 831-7918 |
| Walter's Construction 7017 Watersville Rd, Mt Airy 21771 | (301) 829-0891 |
| Ward Development Corp Carrie Lynn Ct, Mt Airy 21771 | (301) 831-7740 |
| Wayne Hoffman Contracting 4200 Bill Moxley Rd, Mt Airy 21771 | (301) 829-3232 |
| Worthington Construction Mt Airy 21771 | (301) 829-7562 |