| Hogue Investigative Services | Plano, TX | 214-453-1190 |
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| Tri-County Private Investigations of Missouri | nationwide | 816-407-1213 |
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| L.S.S. Consulting Inc. Legal and Security Strategics | nationwide | 248-366-5020 |
|
| Investigative Resources International | nationwide | 800-252-5853 |
|
| Workplace Criminalistics and Defense International | nationwide | 877-527-8706 or 713-353-3914 |
|
| Kalmbach and Associates | nationwide | 888-540-0601 |
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| Verdict Resources, Inc. | nationwide | 888-800-8895 |
|
| Kithas & Associates, Inc. | Fort Worth, TX | (817) 498-1000 |
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| LandAmerica Information Company | nationwide | 800-368-3380 |
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| Moritz & Associates | Houston, TX | 713-263-1110 |
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| U.S. Digital Forensics Professionals, Inc. | OK, TX | 888-8080-DFP |
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| Gietzen & Associates, Inc. | nationwide | 888-779-2345
813-223-3233 |
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| Middleton Investigative Services | nationwide | 866-647-8091 |
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| 3rd Degree Investigations, Inc. | nationwide | 919-872-2270 |
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| The John Haus Group (Va. DCJS 11-3303) | nationwide | 1-866-788-7010 |
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| OmniTrace Corporation | nationwide | 888-965-6696 |
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| The Intelligence Group | nationwide | 908.901.0112 |
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| eFor, Inc. | nationwide | 209-832-7001 |
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| DIBS USA - Computer Forensics | Fort Worth, TX | 817-903-6989 |
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