| Business | Phone |
| American Alarmtronics Stockton 95205 | (209) 463-5748 |
| Delta Hawkeye Security Systems 3201 W Ben Holt Dr, Stockton 95219 | (209) 235-6211 |
| Bic Security 445 N San Joaquin St, Stockton 95202 | (209) 464-1610 |
| Cecil's Security Patrol Inc 25 N Grant St, Stockton 95202 | (209) 948-3033 |
| Pinkerton Security & Invstgtn 4609 Quail Lakes Dr, Stockton 95207 | (209) 943-0138 |