Diamond Investigations - Serving Boston, Burlington and all of Massachusetts 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!

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