| Business | Phone |
| Reliable Heating & Air Cond 10018 Dolfield Rd, Owings Mills 21117 | (410) 655-2347 |
| Ach Air Conditioning & Htg Po Box 787, Owings Mills 21117 | (410) 902-4600 |
| Ambassador Services Inc 8 Music Fair Rd # K, Owings Mills 21117 | (410) 833-1575 |
| Charles A Klein Svc Inc 11410 1/2 Reisterstown Rd, Owings Mills 21117 | (410) 902-6600 |
| Corporate Cooling & Controls 10715 Red Run Blvd, Owings Mills 21117 | (410) 581-9270 |
| Dr Kool & Co Po Box 407, Owings Mills 21117 | (410) 356-2222 |
| Ward-Boland Assoc Inc 22 Music Fair Rd, Owings Mills 21117 | (410) 363-1833 |