| Business | Phone |
| Frank A Barcott Security Po Box 2278, Cypress 90630 | (714) 891-8556 |
| Surveillance Specialists Cypress 90630 | (714) 713-2000 |
| Jim Harris Investigations 9445 Fernbury St, Cypress 90630 | (714) 761-3701 |
| Lungren Investigations Po Box 2115, Cypress 90630 | (714) 349-9954 |