Derry, NH | Fords, NJ
603-893-9944
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Electromagnetic Induction
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Surface Seismic
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HRGS is a leading geophysical consulting firm providing expert subsurface investigations for engineering, environmental, and archaeological projects worldwide.

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Borehole Seismic
Electrical Resistivity
Electromagnetic Induction
Ground Penetrating Radar (GPR)
Surface Seismic
Borehole Geophysical Logging
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26 Kendall Pond Road, Derry, NH 03038
846 Main Street, Fords, NJ 08863
Contact us
603-893-9944
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A Leading Resource for Geophysical Consulting and Services

At HRGS, we change the landscape of geophysics through experience, integrity, and a commitment to consistently reliable results.

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Geophysics for the Engineering and Environmental Communities Since 1984

As one of the largest full-service geophysical firms in the USA, we collaborate with our clients on engineering, environmental, and archaeological investigations through the application of geophysics. We specialize in high-resolution surface and borehole geophysics using state-of-the-art equipment to provide timely subsurface characterization. HRGS has become synonymous with integrity, technology, and commitment to consistently reliable results for over four decades. Our proven expertise in the industry has earned HRGS a national reputation for providing quality geophysical services. We have a strong team of experienced and licensed professionals ready to provide solutions in challenging environments.

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Services We Offer

Ground Penetrating Radar
Borehole Seismic
Electrical Resistivity Imaging
Electromagnetic Induction
Magnetics
VLF
Precision Utility Locating (PUL)
Microgravity
Borehole Geophysical Logging
Archeological Investigations
Vibration Monitoring
Surface Seismic
Ground Penetrating Radar
Borehole Seismic
Electrical Resistivity Imaging
Electromagnetic Induction
Magnetics
VLF
Precision Utility Locating (PUL)
Microgravity
Borehole Geophysical Logging
Archeological Investigations
Vibration Monitoring
Surface Seismic
Ground Penetrating Radar
Borehole Seismic
Electrical Resistivity Imaging
Electromagnetic Induction
Magnetics
VLF
Precision Utility Locating (PUL)
Microgravity
Borehole Geophysical Logging
Archeological Investigations
Vibration Monitoring
Surface Seismic

Projects

Boston Light, Light Brewster Island, Boston Harbor: Geophysical survey for Archeological Artifacts.
Boston Light, Light Brewster Island, Boston Harbor: Geophysical survey for Archeological Artifacts.
Boston Light, Light Brewster Island, Boston Harbor: Geophysical survey for Archeological Artifacts.
Boston Light, Light Brewster Island, Boston Harbor: Geophysical survey for Archeological Artifacts.
Boston Light, Light Brewster Island, Boston Harbor: Geophysical survey for Archeological Artifacts.
Boston Light, Light Brewster Island, Boston Harbor: Geophysical survey for Archeological Artifacts.
Boston Light, Light Brewster Island, Boston Harbor: Geophysical survey for Archeological Artifacts.

Testimonials

As always, HRGS presents a quality product which always addresses the client’s needs and usually contains more than what the client asked for.

Ray Sands
Ray Sands
President, Company name

We just wrapped up the remediation phase of the project we worked on together. The Borehole Geophysical Logging played a very important role in the remediation planning and implementation at the site. I want to share a giant thank you for all the efforts of your team. We know how busy HRGS was this summer because of the quality of your work, and we appreciate HRGS accommodating additional out of scope work services that greatly improved the remediation program.

Testimonial
Testimonial

Thanks for all your help and for the valuable service your company always provides to us. We were able to meet our client’s needs and get the job done on time.

Henry Ross
Henry Ross
Director, Senior Remediation Engineer

As always, HRGS presents a quality product which always addresses the client’s needs and usually contains more than what the client asked for.

Ray Sands
Ray Sands
President, Company name

We just wrapped up the remediation phase of the project we worked on together. The Borehole Geophysical Logging played a very important role in the remediation planning and implementation at the site. I want to share a giant thank you for all the efforts of your team. We know how busy HRGS was this summer because of the quality of your work, and we appreciate HRGS accommodating additional out of scope work services that greatly improved the remediation program.

Testimonial
Testimonial