| Investigators of America |
Wisconsin Investigators and Experts
| DPI | 1941 Adel Street | Janesville | WI | 53546 | 608-758-9471 | jdescafano@yahoo.com |
| Imperial Investigations | P.O. Box 3031 | Eau Claire | WI | 54702 | 715-832-0566 | jacquelinehubbard@imperialinvestigations.com |
| Mayol & Associates | P.O. Box 2228 | Kenosha | WI | 53141 | 866-505-2560 | mayolpi@yahoo.com |
| PI Investigations | P.O. Box 370554 | Milwaukee | WI | 53237 | 414-588-1284 | mike@piinvestigations.com |
| Worldwide Research & Security | P.O. Box 981 | Hudson | WI | 54016 | 715-386-4185 | wwrs@pressenter.com |
