| Business | Phone |
| Brunswick Excavating Inc 4619 Wedgewood Blvd, Frederick 21703 | (301) 663-8781 |
| C Edward Winpigler Inc 300 E 4th St, Frederick 21701 | (301) 663-3641 |
| Daniel R Moxley Inc 1557 Tilco Dr, Frederick 21704 | (301) 663-6968 |
| Francis O Day Co 4120 Buckeystown Pike, Frederick 21704 | (301) 831-1002 |
| Gabe's Service Inc 5294 Agro Dr, Frederick 21703 | (301) 831-1333 |
| Jhg Contractors Inc 5216 Reels Mill Rd, Frederick 21704 | (301) 662-1520 |
| Mid Maryland Excavating Inc Frederick 21701 | (301) 846-4966 |
| Valley Excavation Co 5090 Mountville Rd, Frederick 21703 | (301) 831-6706 |
| W F Lee Inc 5711 Industry Ln # 9, Frederick 21704 | (301) 846-4779 |