| Business | Phone |
| Baltimore County Public Works 200 Holliday St, Baltimore 21202 | (410) 396-5352 |
| Baltimore Public Works Museum 751 Eastern Ave, Baltimore 21202 | (410) 396-5565 |
| Priceless Industries 8120 Norris Ln, Baltimore 21222 | (410) 285-1900 |
| Landmark Parking Inc 33 S Gay St, Baltimore 21202 | (410) 837-5600 |
| American Tennis Courts Inc 4051 N Point Rd, Baltimore 21222 | (410) 477-4400 |
| Parking Striping Co Inc 5801 Erdman Ave, Baltimore 21205 | (410) 485-0717 |
| Ground Level Pavement Mntnc Baltimore 21220 | (410) 477-8033 |
| Sweeprite Services 26 Longeron Dr, Baltimore 21220 | (410) 574-2410 |