| Business | Phone |
| A Confidential Investigative South Bend 46637 | (574) 273-8936 |
| Action Detective Agency 55160 Butternut Rd, South Bend 46628 | (574) 232-1796 |
| Advanced Professional Svc 20816 Louise Ln, South Bend 46614 | (574) 299-0909 |
| Confidential Investigative Svc 914 S Ironwood Dr, South Bend 46615 | (574) 287-0700 |