| Business | Phone |
| Employment & Training Div 1100 N Eutaw St, Baltimore 21201 | (410) 767-2626 |
| Employment & Training Div 4025 Mortimer Ave, Baltimore 21215 | (410) 853-1637 |
| Facilities Management 301 W Preston St # 1311, Baltimore 21201 | (410) 767-4409 |
| General Service Dept 500 N Calvert St # 381, Baltimore 21202 | (410) 333-6680 |
| General Services Dept 301 W Preston St # M4, Baltimore 21201 | (410) 767-4960 |
| Legislative Audits Div 301 W Preston St # 1202, Baltimore 21201 | (410) 767-1400 |
| Personnel Dept 201 W Preston St # 114a, Baltimore 21201 | (410) 767-4960 |
| Purchase Bureau 301 W Preston St, Baltimore 21201 | (410) 767-4600 |
| Purchasing Dept 301 W Preston St # M3, Baltimore 21201 | (410) 767-4628 |
| Staff Development & Training 311 W Saratoga St, Baltimore 21201 | (410) 333-0691 |