| Business | Phone |
| Arcy Pro Investigations Po Box 2226, Paradise 95967 | (530) 876-1490 |
| Auric Investigations Po Box 1855, Paradise 95967 | (530) 877-4865 |
| Criswell Investigation Agency Po Box 3103, Paradise 95967 | (530) 872-5338 |
| Mac Phail Investigations 5910 Clark Rd # A, Paradise 95969 | (530) 873-2687 |
| Norcal Security Consultants 6269 Mountain Meadow Ct, Paradise 95969 | (530) 370-6971 |
| Northern Valley Claims 6100 Ripley Ln, Paradise 95969 | (530) 872-0399 |