| Business | Phone |
| 40 West Hearing Aid Ctr 6120 Old Frederick Rd, Catonsville 21228 | (410) 788-0440 |
| Beltone Hearing Aid Ctr 611 Frederick Rd # 103, Catonsville 21228 | (410) 744-2580 |
| Beltone Hearing Aid Ctr 727 Frederick Rd, Catonsville 21228 | (410) 747-2920 |