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Contact McGrath Investigative Services

Whether you are a private individual or represent a large organization, we’re committed to fulfilling our promise of truth, justice, and security for you.

Based in Seabrook, we serve clients across New Hampshire, including Portsmouth, Hampton, Exeter, Dover, Rochester, Salem, Derry, Manchester, Nashua and Concord, as well as the Seacoast and the greater Merrimack Valley. Our services include process serving, skip tracing, surveillance, background checks, court research and private investigation for attorneys, businesses, insurers and individuals.

When you reach out, please include a short summary of what you need, any deadlines or court dates, and the best way to reach you. All inquiries are handled confidentially and we reply promptly. For process serving requests, attaching the documents and the last known address of the person to be served will help us get started right away.

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Reach out to us with your questions, stories, or just to say hello.

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