| Business | Phone |
| Caroline Crockett & Co 8358 Rocky Springs Rd, Frederick 21702 | (301) 694-6823 |
| Constella Group 1003 W 7th St # 1001, Frederick 21701 | (301) 682-5501 |
| Fortrex Technologies 5303 Spectrum Dr, Frederick 21703 | (301) 977-6966 |
| J E Gardner Search Svc 1336 Taney Ave # 202, Frederick 21702 | (301) 846-9389 |