Full-Service Professional Investigative Services in Michigan

Phase Four Investigations in Mt. Clemens has been Michigan's most trusted private investigation company for more than 35 years. We are a leader in the field of private investigations, surveillance, security services, evidence-gathering, pre-employment screening, and information services.

We are always mindful that, while our job is to collect data, we work with people. We regularly handle sensitive cases involving child custody, infidelity, fraud, and business-related crimes. We handle our cases quickly, confidentially, and with sensitivity to offer you the best service with the least amount of disruption.

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Fully Bonded, Licensed, and Insured

Our team of investigators, surveillance experts, technicians, and process servers are located across Michigan and work diligently to provide the evidence you need. We use state-of-the-art technology and processes to gather, decipher, and organize information. We have worked with large and small law firms nationwide, as well as insurance adjusters, companies, and individuals. Our goal is to meet and exceed your surveillance, evidence gathering, and other investigative needs.

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