| Business | Phone |
| A Didomenico 510 Camilla St, Havre De Grace 21078 | (410) 939-0361 |
| Aberdeen Proving Ground 1016 Pulaski Hwy, Havre De Grace 21078 | (410) 939-6136 |
| Bob Ward Inc 421 S Union Ave, Havre De Grace 21078 | (410) 939-0641 |
| Broad Com Corp 304 Lockhart Ct, Havre De Grace 21078 | (410) 942-0478 |
| Bti05bag02610c 960 Revolution St, Havre De Grace 21078 | (410) 939-4086 |
| Clark Turner Co 1620 Chapel Rd, Havre De Grace 21078 | (410) 939-9373 |
| Cork & Barrel 137 N Washington St, Havre De Grace 21078 | (410) 939-8002 |
| Data Place 224 N Washington St, Havre De Grace 21078 | (410) 939-4909 |
| Friends-Concord Point Lighthse Concord St, Havre De Grace 21078 | (410) 939-9040 |
| Frontier Adjusters-Baltimore 307 Woodduck Ct, Havre De Grace 21078 | (410) 494-1448 |
| Havre De Grace Art Show Havre De Grace 21078 | (410) 939-9342 |
| Hdg 1634 Pulaski Hwy, Havre De Grace 21078 | (410) 939-6505 |
| Picker & Assoc 207 Pointe Way, Havre De Grace 21078 | (410) 942-0500 |
| Roller Express Inc 354 Old Bay Ln, Havre De Grace 21078 | (410) 942-1000 |
| Shore Line 405 N Adams St, Havre De Grace 21078 | (410) 939-7734 |
| Streeter Enterprises Inc 611 Otsego St, Havre De Grace 21078 | (410) 939-7011 |
| Upper Chesapeake Transitional 501 S Union Ave, Havre De Grace 21078 | (443) 843-6343 |
| W A Bowie Sons Inc 300 Commerce St, Havre De Grace 21078 | (410) 939-2889 |
| William Freund & Sons Seal Ctg 571 Otsego St, Havre De Grace 21078 | (410) 939-2632 |
| Wyre Productions Inc 1327 Superior St, Havre De Grace 21078 | (410) 939-8791 |