Investigative Services
in Sacramento, CA

Professional Investigations since 1996

At M.W. Thompson Investigative Services, we’ve dedicated our professional career to uncovering the truth for individuals, businesses, and attorneys across Sacramento, CA, and the surrounding areas. Our wide range of investigative services are designed to deliver accurate, discreet, and actionable results. From highly technical surveillance services to deeply personal infidelity investigations, we use advanced equipment, proven techniques, and decades of field expertise to get the answers our clients need.

And when you choose us, you’re also working with a firm led by Matt Thompson, a licensed private investigator since 2004 and former Criminal Investigator for the San Francisco Public Defender’s Office. His background, combined with decades of hands-on experience, ensures every case is handled with professionalism and precision.

Call 916-719-9752

Our Services

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Surveillance Services

Surveillance is one of the most powerful tools in private investigation, and it’s a skill we’ve mastered through decades of practice. Whether it’s monitoring a suspected case of infidelity, observing the behavior of a parent in a child custody dispute, or catching claimants committing insurance fraud, we deliver reliable, court-ready evidence. Using state-of-the-art video and photography equipment, our surveillance services remain discreet while capturing the truth you need.

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Infidelity Investigations

Doubts in a relationship can be devastating. Our infidelity investigations provide clarity when trust is in question. We discreetly gather evidence of suspected affairs, delivering factual information without bias. By combining surveillance with background investigation techniques, we’ve helped countless clients in Sacramento face difficult situations with the peace of mind that comes from knowing the truth.

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Child Custody Investigations

In custody disputes, the well-being of a child is always the top priority. We conduct child custody investigations that document parental behavior, living conditions, and time spent with the child. Whether the case involves suspected neglect, abuse, or unsafe environments, our findings provide courts with clear, factual information to guide custody decisions.

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Locating People

Few cases test an investigator’s skill like locating individuals. Over the years, we’ve developed an exceptional track record in finding witnesses or debtors, even in situations where others have failed. We utilize a wide variety of investigative avenues to locate the person, whether they’re in Sacramento or anywhere in the nation.

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Background Investigations and Asset Searches

Our background investigations provide critical insights for employers, attorneys, or individuals seeking clarity about someone’s history. We examine criminal records, financial standing, and more. Alongside this, our asset searches help identify hidden property, bank accounts, or other assets. These services are often essential in legal disputes, divorce cases, and financial matters.

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Workers’ Compensation and Insurance Investigations

Fraudulent claims can cause financial damage to employers and insurance companies. With extensive experience in surveillance services, we investigate suspicious workers’ compensation claims, documenting activities that conflict with reported injuries or limitations. Our insurance investigations extend to all types of questionable claims, delivering detailed reports and video evidence that help companies protect their resources.

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Criminal and Civil Investigations

Matt Thompson’s background in criminal investigations provides us with unique insight into the legal process. As a member of the Sacramento County Investigator Panel, he has handled serious cases ranging from armed robbery to homicide. We assist defense attorneys with evidence gathering, witness interviews, and case preparation.

In civil matters, we handle a wide range of sensitive cases, from fraud and business disputes to divorce and custody-related issues. Our work includes process serving, courtroom testimony, and thorough documentation to support legal strategies.

Why Choose M.W. Thompson Investigative Services?

  • Decades of investigative experience beginning in 1996.
  • State-licensed private investigator since 2004 (CA PI License #24051).
  • Proven record of successful results in surveillance, infidelity, and child custody investigations.
  • Serving Sacramento and surrounding areas, with statewide reach when needed.

We are committed to handling every case with discretion, professionalism, and integrity, providing our clients with the peace of mind that comes from having the truth on their side.

Contact Us

Frequently Asked Questions

Do you handle both personal and corporate cases?
Yes. We work with individuals, law firms, businesses, and insurance companies.
Are your findings admissible in court?
Yes. Our reports, photographs, and video evidence are prepared to hold up in legal proceedings.
How do you maintain discretion during surveillance?
We use advanced equipment and proven techniques to remain undetected while gathering evidence.
Do you only serve Sacramento?
While our primary service area is Sacramento and nearby counties, we work with trusted associates to cover cases across California.
How long does an investigation take?
Every case is unique. We provide an estimated timeline after an initial consultation.

Get the Clarity You Deserve

As a private investigator in Sacramento, CA since 1996, we understand that hiring a PI is often a step taken in times of uncertainty or conflict. That’s why we approach every case with professionalism, discretion, and expertise. From infidelity investigations to child custody cases, we deliver the clear, factual evidence you need to make confident decisions.

In serving Sacramento and the surrounding areas, our team is always ready to help you uncover the truth. So don’t wait: contact us today at 916-719-9752 for a confidential consultation and put our experience to work for you.

Call today!