| Gietzen & Associates, Inc. | nationwide | 888-779-2345
813-223-3233 |
 |
| Chicagoland Detective Services, Inc. | IL, WI, IN | (312) 661-0702 |
|
| Five Star Detective Agency, Inc. | *Statewide*, IL | (630 or 847) 774-1000 |
|
| DIBS USA - Computer Forensics | nationwide | 917-202-0551 |
|
| Confidential Affairs Investigative Agcy, Inc. | IN, IL, MI | 219-985-1605 |
|
| Smith Investigations, Inc. | Danville, IL | 217-446-5373 |
|
| The John Haus Group (Va. DCJS 11-3303) | nationwide | 1-866-788-7010 |
|
| L.S.S. Consulting Inc. Legal and Security Strategics | nationwide | 248-366-5020 |
|
| Tri-County Private Investigations of Missouri | nationwide | 816-407-1213 |
|
| CDS Group International LLC | nationwide | 402-462-9966 |
|
| Investigation and Paralegal Group | nationwide | 314-642-6000 |
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| LandAmerica Information Company | nationwide | 800-368-3380 |
|
| Lakeside Investigations, P.C. | *Statewide*, IL | 800/636-1511 |
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| Verdict Resources, Inc. | nationwide | 888-800-8895 |
|
| Workplace Criminalistics and Defense International | nationwide | 877-527-8706 or 713-353-3914 |
|
| Parental Abduction Search Specialists | nationwide | 954-782-9915 |
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