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  • The process of finding a person whose whereabouts are unknown is referred to as Skip tracing. Diamond Investigations can help you find and locate missing persons/witnesses.

    Skip Tracing

    Skip Tracing

    The process of finding a person whose whereabouts are unknown is referred to as Skip tracing. Diamond Investigations can help you find and locate missing persons/witnesses.

  • Diamond Investigations will discreetly investigate supposed spousal infidelity and effectively document the findings. Our infidelity investigations are the most comprehensive in Massachusetts.

    Infidelity

    Infidelity

    Diamond Investigations will discreetly investigate supposed spousal infidelity and effectively document the findings. Our infidelity investigations are the most comprehensive in Massachusetts.

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    We offer a wide range of professional confidential surveillance services to individuals, attorneys, law firms, businesses and organizations.

    Surveillance

    Surveillance

    We offer a wide range of professional confidential surveillance services to individuals, attorneys, law firms, businesses and organizations.

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    TSCM stands for Technical Surveillance Counter-measures, but is more often called “debugging” to the average lay person. Do you suspect that you are being watched, listened to or followed?

    TSCM - Bug Sweeps

    TSCM - Bug Sweeps

    TSCM stands for Technical Surveillance Counter-measures, but is more often called “debugging” to the average lay person. Do you suspect that you are being watched, listened to or followed?

  • Looking For a Massachusetts or Boston Private Investigator? Now Serving Central Florida and The Villages, Florida.

  • Diamond Investigations - Serving Boston, Burlington and all of Massachusetts, Central Florida and The Villages, Florida With Integrity

    Before you hire a Boston Private Investigator, you must make sure that the detective agency you select is licensed and bonded as required by the State of Massachusetts. Diamond Investigations is a fully licensed, bonded, and insured Massachusetts Private Detective Agency.

    Our founder and Chief Investigator has served in law enforcement for over two decades. He and our Burlington and Boston Private Investigators have extensive knowledge of the Massachusetts state and federal court system as well as all laws pertaining to private investigators and private detectives in Massachusetts. 

    Diamond Investigations is a member in good standing of the Licensed Private Detectives Association of Massachusetts (L.P.D.A.M), as well as a member of the National Council of Investigation and Security Services (N.C.I.S.S.) We are also an approved Massachusetts Committee for Public Counsel Services (C.P.C.S.) vendor as well as a licensed and bonded Massachusetts Constable.

    Our trained Boston based private investigators have extensive practical investigative experience all across Massachusetts conducting:

    • Massachusetts Criminal Investigations
    • Massachusetts Civil Investigations
    • Massachusetts Background Investigations
    • Locating missing persons
    • Interviewing Witnesses
    • Theft and Burglary Investigations
    • Massachusetts Surveillance
    • Mystery Shopping
    • Massachusetts Process Service
    • Employee Terminations
    • Corporate Security Services
    • Massachusetts Event Security


    All private investigators working for Diamond Investigations are fully licensed and trained to always provide professional confidential services to our clients by abiding by the Massachusetts State Laws and Federal laws. 

    We invite you to view our services portfolio. For additional information, please Contact Us. You can also Submit an Online Information Request.

    Thank you for choosing Diamond Investigations, your trusted source for investigative services!

  • Testimonials

  • After weeks of no results, and thousands of dollars spent on other agencies. I called Diamond Investigations, they were able to uncover my husband cheating in one day.

    H.T. Arlington, MA

  • My ex-wife did not know about the new Massachusetts alimony law. Diamond Investigations provided surveillance information that virtually erased my alimony. Am I pleased? You tell me!

    C.W. Brighton, MA

  • Areas our Boston Private Investigators regularly service in Massachusetts With Integrity:

    Acton, Andover, Arlington, Ashby, Ashland, Ayer, Bedford, Belmont, Billerica, Boston, Boxborough, Burlington, Cambridge, Carlisle, Chelmsford, Concord, Dracut, Dunstable, Everett, Framingham, Groton, Haverhill, Holliston, Hopkinton, Hudson, Lawrence, Lexington, Lincoln, Littleton, Lowell, Malden, Marlborough, Maynard, Medford, Melrose, Natick, Newton, North Reading, Peabody, Pepperell, Reading, Saugus, Sherborn, Shirley, Somerville, Stoneham, Stow, Sudbury, Tewksbury, Townsend, Tyngsborough, Wakefield, Waltham, Watertown, Wayland, Westford, Weston, Wilmington, Winchester, Woburn