Proven Investigations. Trusted Results.
At Diamond Investigations, we understand that every case demands discretion, accuracy, and a clear outcome. For over three decades, our team has delivered reliable results for individuals, businesses, and attorneys throughout Massachusetts and beyond. From surveillance and witness interviews to insurance and infidelity investigations, we provide the evidence you need to make informed decisions. Every investigation is handled with professionalism, confidentiality, and a relentless focus on results.
