| Business | Phone |
| Annie E Casey Foundation 701 Saint Paul St, Baltimore 21202 | (410) 547-6600 |
| Federal Executive Board 31 Hopkins Plz # G13, Baltimore 21201 | (410) 962-4047 |
| Us General Svc Adm 31 Hopkins Plz, Baltimore 21201 | (410) 962-2296 |
| Us Federal Supply Svc 2800 Eastern Blvd # 106, Baltimore 21220 | (410) 962-7446 |
| Us General Svc Adm 7500 Security Blvd, Baltimore 21244 | (410) 786-5000 |