Duvall Group Investigations 1-800-681-0687


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Ryan T Duvall CEO



The Duvall Group is a premier professional investigative firm. The Duvall Group has been selected as the physical surveillance component on numerous high profile and sensitive surveillance investigations. The Duvall Group’s clients include small businesses, private investigative firms, insurance carriers, third party administrators, law firms, and public figures.



Our surveillance services include but are not limited to General Investigations, Internal Investigations, Executive Background Investigations, and Litigation Support.








The effectiveness of any investigative firm’s surveillance depends on the quality of the training and experience of the surveillance operatives. We believe the most important elements in building a premier surveillance team is to provide a working environment that promotes high morale and to utilize the best people in the industry.



The Duvall Group, by utilizing former law enforcement and similarly skilled professionals that has put together one of the best surveillance teams in the industry. Our leadership manages the business in the most efficient manner possible in order to provide a high end service that is cost effective for the client.





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Duvall Group Michigan Private Investigations
532 Rambow Drive,
Monroe Michigan 48161
1-800-681-0687
After Hours 734-777-5826
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