| Business | Phone |
| Mike's Janitorial Svc 8425 Oakleigh Rd, Parkville 21234 | (410) 661-0104 |
| S & S Janitorial Svc & Supply 2 Forgotten Ct, Parkville 21234 | (410) 882-3712 |
| Cleaning Plus Inc 2803 Onyx Rd, Parkville 21234 | (410) 661-2610 |
| Jan-Pro Cleaning Systems 9403 Harford Rd # 6, Parkville 21234 | (410) 665-1800 |