| Business | Phone |
| Clark Investigative Svc Po Box 84544, Lincoln 68501 | (402) 438-3848 |
| Fire Loss Analysis Inc Lincoln 68502 | (402) 476-3999 |
| O'Neal Private Investigation 7300 Old Post Rd 8, Lincoln 68506 | (402) 484-6477 |
| Phipps & Assoc Lincoln 68504 | (402) 580-1858 |
| Silverhawk Security Specialist 6121 S 58th St C, Lincoln 68516 | (402) 421-7780 |
| Wyant Investigations Po Box 22154, Lincoln 68542 | (402) 477-3451 |