| Business | Phone |
| Aguilera & Assoc Inc Po Box 4009, Long Beach 90804 | (562) 498-7064 |
| Intertec International Group 100 Oceangate # 12, Long Beach 90802 | (562) 592-9996 |
| Investigative Resources Long Beach 90802 | (562) 437-7709 |
| Poland Investigations 333 W Broadway, Long Beach 90802 | (562) 435-7807 |
| Centennial Investigative Spclt Long Beach 90806 | (562) 595-4333 |
| Centennial Investigations 1741 E Marshall Pl, Long Beach 90807 | (562) 595-4333 |
| Hauser Stein Investigations Long Beach 90803 | (562) 594-4913 |
| Lourdes Associates 4115 E Broadway, Long Beach 90803 | (562) 438-4791 |
| La Mar Private Investigations 154 E Canton St, Long Beach 90806 | (562) 997-6710 |
| Dtech Investigations Long Beach 90804 | (562) 961-0123 |
| Comprehensive Special Invstgtn Long Beach 90808 | (562) 420-2640 |
| Fire & Arson Investigation Svc Long Beach 90808 | (562) 377-0565 |
| Tom Taylor & Assoc 2005 Palo Verde Ave # 104, Long Beach 90815 | (562) 431-8544 |
| Thielen Investigation Inc 3271 Airflite Way, Long Beach 90807 | (562) 988-2727 |