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Rock One Consulting, LLC

(603) 686-3301
Rock One Consulting, LLC


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Dan Linehan, our principal is a retired New Hampshire State Police Lieutenant and retired High Sheriff of Rockingham County New Hampshire. He has over 37 years of law enforcement experience, and an extensive network of professional colleagues to provide you with the information you need for successful decision making strategies.

We are dedicated toward providing the professional attention our clients need for their own success.


  • Background Checks
  • Criminal
  • Fraud
  • Missing Persons
  • Public Records
  • People Locate / Skip Trace
  • Surveillance
  • Workers Compensation

Service Guarantee

All investigations are performed with discretion.

Areas of Coverage

  • Rockingham County
  • Massachusetts Statewide
  • New Hampshire Statewide


  • ServeNow

Contact Info

Dan Linehan
(603) 686-3301
6 Spruce Dr
East Hampstead, NH 03819

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Office Location

6 Spruce Dr
East Hampstead, NH
(603) 686-3301