| Nan-Lee Attorney Services & Investigations | Hayward, CA | (510) 667-9538 |
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| IPSA Intenational, Inc. | nationwide | (510)748-1234 |
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| Pearne Investigation Agency | San Jose, CA | (408) 243-6066 |
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| Michael Wolf Enterprises | Calabasas, CA | (818)591-5986 |
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| Tri-County Private Investigations of Missouri | nationwide | 816-407-1213 |
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| Investigation and Paralegal Group | nationwide | 314-642-6000 |
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| Donofrio & Associates | San Francisco / Bay Area, CA | 800-997-7674 |
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| L.S.S. Consulting Inc. Legal and Security Strategics | nationwide | 248-366-5020 |
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| Verdict Resources, Inc. | nationwide | 888-800-8895 |
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| David L. Warkentine-Private Investigator/Polygraph | Channel Islands Harbor, CA | 805-653-6626 |
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| Kalmbach and Associates | nationwide | 888-540-0601 |
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| Middleton Investigative Services | nationwide | 866-647-8091 |
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| Arcy Professional Investigations, Inc. | Paradise, CA | 1-877-474-2729 |
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| CDS Group International LLC | nationwide | 402-462-9966 |
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| Investigative Resources International | nationwide | 800-252-5853 |
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| Hodson and Associates Investigations | Orange County, CA | 714-773-5345 |
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| Central Coast Investigative Services Incorporated | Salinas, CA | (831) 422-9111 |
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| Gietzen & Associates, Inc. | nationwide | 888-779-2345
813-223-3233 |
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| Michael A. Rosenblum | Oakland, CA |
