| Business | Phone |
| Rexel 15 W Aylesbury Rd, Timonium 21093 | (410) 561-5050 |
| Burndy Corp 300 W Timonium Rd, Timonium 21093 | (410) 561-0246 |
| Eaton Corp Timonium 21093 | (410) 560-0909 |
| Hagemeyer/Tristate Electrical 14 W Aylesbury Rd, Timonium 21093 | (410) 252-7020 |