| Business | Phone |
| Bay Industrial 814 Maryland Route 3 S, Gambrills 21054 | (410) 721-0161 |
| Capital Realty Inc 1151 Maryland Route 3 N, Gambrills 21054 | (410) 721-2717 |
| Choice Properties Inc 2321 Davidsonville Rd, Gambrills 21054 | (410) 721-4424 |
| Coldwell Banker 1151 Route 3 N Crofton Stn, Gambrills 21054 | (410) 721-0103 |
| Coldwell Banker 1151 State Route 3 N, Gambrills 21054 | (301) 261-3836 |
| John T Brennan Real Estate 2009 Huntwood Dr, Gambrills 21054 | (410) 721-4283 |
| Patterson Realtors 882 Annapolis Rd, Gambrills 21054 | (410) 987-4110 |
| Re/Max Innovations 1360 Main Chapel Way, Gambrills 21054 | (410) 721-9600 |
| Sturbridge Homes Inc 2605 Chapel Lake Dr, Gambrills 21054 | (410) 451-0555 |