Rapid City Private Investigators

Mark Matthews & Associates, LLC
Rapid City, SD - Pennington County
(605) 231-8393
Timely. Thorough. Discreet
Since 1977

Rapid City Background Investigations
Are you in need of running a background check to determine the validity of someone's character? Do you feel things just don't add up or that different answers are supplied then previously noted? MM&A conducts hundreds of background checks every year to help people understand who they're dealing with. With factual information, you can make an informed decision if it's the person you want to have a relationship, friendship or engage in a business deal.

Experience you can count on, knowledge and resources you can trust!

Rapid City Locate Investigations
Finding people is our specialty, even if they don't want to be found. Contact our office today to find out how we can help you conduct a locate investigation to find the person you're looking for. We have access to the most current information and internet resources available. Whether it's an old neighbor, lost friend, past school chum or someone who owes you money, we can help you get connected.

Surveillance in Rapid City
Do you have a need to conduct surveillance in Rapid City? Do you live in Rapid City but need surveillance in some other part of the state or region? MM&A offers covert observation and mobile surveillance services throughout the United States. Whether you need to document a cheating spouse or the movements and intent of an employee, we can help.

Experience when it matters most!
Put 43 years of investigative experience to work for you. Mark Matthews began his career as an investigator in 1977, while working for a family owned detective agency. He's handled investigations across the United States and in Washington, D.C., for a variety of clients including Fortune 500 companies such as General Motors, Dow Chemical, AT&T and State Farm Insurance.

Whatever you have questions about, we have the knowledge, determination and resources to get the information you deserve. Even if your investigation involves the State of South Dakota, Pennington County Sheriff's Department, Rapid City Police Department or is a case filed in the District Court of South Dakota.

With hundreds of cases solved over the course of business as South Dakota Private Detectives, it's second nature to us in finding answers to even the most complex cases. Our associate investigators have undergone extreme vetting and are located in most cities throughout the United States and the Great Plains, so whether your investigation is local, regional or national, your case can be accomplished in a proficient manner.

Email us for a free consultation on how to solve your particular issue.
Call (605) 231-8393
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Investigative solutions since 1977

Surveillance

Backgrounds

Litigation Support