| Business | Phone |
| Diagnostic Health Group 5695 Briargrove Ct, Frederick 21703 | (301) 695-5665 |
| Institute For Radiological 3 Hillcrest Dr # A202, Frederick 21703 | (301) 662-5772 |
| Keyan Industries Inc 5115 Pegasus Ct # E, Frederick 21704 | (301) 631-2907 |
| Trans-Type Of Maryland Inc 108 Byte Dr # 101, Frederick 21702 | (301) 695-7087 |