| Confidential Affairs Investigative Agcy, Inc. | IN, IL, MI | 219-985-1605 |
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| Metro Detective Agency | Dekalb, IL | 815-757-8940 |
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| Tri-County Private Investigations of Missouri | nationwide | 816-407-1213 |
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| Southern Model Builders, LLC | nationwide | 251-625-2862 |
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| Verdict Resources, Inc. | nationwide | 888-800-8895 |
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| Middleton Investigative Services | nationwide | 866-647-8091 |
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| Investigative Resources International | nationwide | 800-252-5853 |
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| Smith Investigations, Inc. | Danville, IL | 217-446-5373 |
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| Accident Reconstruction & Investigation, LTD | nationwide | 888-266-9365 |
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| DIBS USA - Computer Forensics | nationwide | 917-202-0551 |
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| IPSA Intenational, Inc. | nationwide | (510)748-1234 |
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| Five Star Detective Agency, Inc. | *Statewide*, IL | (630 or 847) 774-1000 |
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| Kalmbach and Associates | nationwide | 888-540-0601 |
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| CDS Group International LLC | nationwide | 402-462-9966 |
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| Lakeside Investigations, P.C. | *Statewide*, IL | 800/636-1511 |
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| Workplace Criminalistics and Defense International | nationwide | 877-527-8706 or 713-353-3914 |
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| Investigation and Paralegal Group | nationwide | 314-642-6000 |
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| Shaffer & Associates, Forensic Technologies | nationwide | 888-831-1431 |
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| Gietzen & Associates, Inc. | nationwide | 888-779-2345
813-223-3233 |
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