| Business | Phone |
| Mjr Svc 1928 Hillside Dr, Gwynn Oak 21207 | (410) 298-2800 |
| Nds Cleaning Svc 1910 Gwynn Oak Ave, Gwynn Oak 21207 | (443) 429-3422 |
| Ron's Janitorial Svc 3920 Maine Ave, Gwynn Oak 21207 | (410) 664-2446 |
| A Gracefull Cleaning Svc 5816 Johnnycake Rd, Gwynn Oak 21207 | (410) 869-7211 |
| Blue Ribbon Janitorial Svc 6800 Liberty Rd, Gwynn Oak 21207 | (410) 298-0302 |
| Clean Cado Llc 4905 Liberty Heights Ave, Gwynn Oak 21207 | (410) 466-9922 |
| Elite Global Cleaning Svc 4414 Wentworth Rd, Gwynn Oak 21207 | (410) 448-1336 |
| Excel Janitorial Inc 6326 Security Blvd # 203, Gwynn Oak 21207 | (443) 436-5700 |
| Golden Touch Cleaning Svc 4717 Liberty Heights Ave, Gwynn Oak 21207 | (443) 394-3203 |
| Allen Hilton Gwynn Oak 21207 | (410) 944-5455 |
| K & K Cleaning Svc 1347 Vida Dr, Gwynn Oak 21207 | (410) 719-8838 |
| Loving Touch 1924 Englewood Ave, Gwynn Oak 21207 | (410) 597-9200 |