| Business | Phone |
| El Cajon Public Works 200 E Main St, El Cajon 92020 | (619) 441-1653 |
| Ambrit Services 802 Denise Ln, El Cajon 92020 | (619) 582-9600 |
| On Time Striping 1202 Marline Ave, El Cajon 92021 | (619) 277-7204 |
| Lsi Road Marking 14219 Olde Highway 80, El Cajon 92021 | (619) 443-7755 |