| Business | Phone |
| Action Investigations Chrtrd 707 Minnesota Ave, Kansas City 66101 | (913) 621-0402 |
| Star Investigation Svc Kansas City 66101 | (913) 371-8060 |
| Scorpion Investigations 1515 N 75th Dr, Kansas City 66112 | (913) 788-7738 |
| Sentry Investigations 8160 Parallel Pkwy, Kansas City 66112 | (913) 788-3315 |
| Propatrol Inc 2414 S 34th St, Kansas City 66106 | (913) 287-7314 |