| Business | Phone |
| Brattain Investigations Po Box 13456, Fort Wayne 46869 | (260) 460-4636 |
| Confidential Resources Inc 1014 1/2 Webster St, Fort Wayne 46802 | (260) 424-8306 |
| Hosford Agency 6732 E State Blvd # 206, Fort Wayne 46815 | (260) 471-1000 |
| Jerome M Ridley Inc Po Box 13628, Fort Wayne 46865 | (260) 441-2492 |
| Security Services 2720 Saint Marys Ave, Fort Wayne 46808 | (260) 482-2875 |
| Pinkerton Security & Patrol 1010 Memorial Way, Fort Wayne 46805 | (260) 482-8102 |