| Business | Phone |
| A 1 Fire Protection Inc 8655 Miramar Pl, San Diego 92121 | (858) 623-2733 |
| Alpha Mechanical 4990 Greencraig Ln, San Diego 92123 | (858) 278-3500 |
| Southland Fire Protection Inc 4733 Point Loma Ave, San Diego 92107 | (619) 523-1400 |
| Schmidt Fire Protection Co 4760 Murphy Canyon Rd, San Diego 92123 | (858) 279-6122 |