| Business | Phone |
| Abuma Enterprises Arnold 21012 | (410) 544-1840 |
| Blue Bay Construction Ltd 1121 Asquith Dr, Arnold 21012 | (410) 544-8501 |
| Eisinger Construction Co 1197 Baltimore Annapolis Blvd, Arnold 21012 | (410) 975-9949 |
| Philip G Forsythe Jr 475 Colonial Ridge Ln, Arnold 21012 | (410) 757-7884 |
| H E Sprenkle Inc 126 Chautaugua Rd, Arnold 21012 | (301) 261-1062 |
| Hi-Tech General Contractors Po Box 159, Arnold 21012 | (410) 349-1200 |
| J T Enterprises 1315 Baltimore Annapolis Blvd, Arnold 21012 | (410) 544-6490 |
| Magothy River Construction Co 971 Forest Dr, Arnold 21012 | (410) 757-3869 |
| Mike Dinan & Sons Contractors 111 Church Rd, Arnold 21012 | (410) 974-0349 |
| Saunders Construction Co 640 Oakland Hills Dr, Arnold 21012 | (410) 757-2121 |
| W F Utz Construction 597 Oakland Hills Dr, Arnold 21012 | (410) 757-8163 |