The Trusted Network of Process Servers

McGrath Process and Investigative Services LLC

McGrath Process and Investigative Services LLC

McGrath Investigative Services is a full service investigative agency located in the State of New Hampshire.
David McGrath graduated from the Northeastern University College of Criminal Justice in 1997, and immediately began his career as a full time private investigator.
David has worked thousands of cases for Attorneys, Insurance Companies and Private Individuals all over New England.
McGrath Investigative Services provides confidential, discrete, custom-tailored investigations and process service, with an extremely fast turn around time.
Please call for a free consultation.


  • Process Service
  • Criminal Investigations
  • Statements
  • Interviews
  • Witness Locates
  • Extensive Database research
  • Background Checks
  • Missing Persons
  • Insurance Investigations
  • Surveillance
  • Crime Scene Photos
  • Accident Photos/ Investigations
  • Locus
  • Skip Trace
  • Litigation Support
  • Domestic Surveillance
  • Familial Issues
  • Child Custody
  • Asset Location
  • Property Checks
  • Executive Protection
  • Licensed to carry firearms In NH, Ma, Me.
  • Nanny Checks
  • Teen Checks
  • Pre-employment Screening
  • Tennant Screening

Areas of Coverage

  • Serving the entire New Hampshire Area.


  • Pi- Now
  • Serve Now

Member Info

David McGrath
(603) 394-7310
Phone 2:
(339) 226-0276
(603) 394-7318
P.O. Box 1356
Seabrook, NH 03874

The Lawgical Promise The Lawgical Promise guarantees this member has been pre-screened to verify their qualifications.

Office Location

P.O. Box 1356
Seabrook, NH
(603) 394-7310