| Business | Phone |
| Bartell Investigations 2028 E Route 66 # 101, Glendora 91740 | (626) 857-0770 |
| Krout & Schneider Inc 2250 Lindsay Way, Glendora 91740 | (909) 599-9500 |
| National Insurance Crime Bur 2025 E Financial Way, Glendora 91741 | (626) 963-6058 |
| Western Field Investigations 1340 E Route 66 # 209, Glendora 91740 | (626) 857-5599 |
| A Pineda & Assoc Po Box 2196, Glendora 91740 | (626) 963-5292 |
| Acsi Inc Po Box 855, Glendora 91740 | (909) 394-4664 |
| New Millennium Investigations 1124 E Route 66, Glendora 91740 | (626) 857-9338 |