Geophysicist reviewing and interpreting geophysical field data on site

Advanced Geophysical Services

Field geophysicist conducting electrical resistivity survey in the field

A Unified Team for Subsurface Investigation

Advanced Geophysical Services (AGS) was formed through the acquisition of Advanced Geological Services by EPI Geophysics, bringing together two highly respected subsurface firms into one unified geophysical company.

Map of the eastern United States highlighting AGS service area states including New Jersey, Pennsylvania, New York, Connecticut, Delaware, and Maryland

Advanced Geophysical Services brings over 30 years of experience delivering advanced geophysical investigations and subsurface characterization. EPI Geophysics complements this foundation with a strong reputation in Ground Penetrating Radar (GPR) and private utility locating. Together, these strengths create a well-rounded, full-service geophysical team capable of supporting projects from initial site assessments to well beyond project completion.

This acquisition expands our technical capabilities, staffing depth, and geographic reach, while maintaining the same trusted personnel, equipment, and client-first approach both companies are known for. Clients continue working with familiar faces, now supported by an expanded team of licensed Professional Geologists and experienced geophysicists.

AGS also continues its long-standing partnership with Environmental Probing Investigations, providing seamless, in-house geophysical support for environmental and geotechnical drilling projects to provide fully integrated subsurface solutions.

The result is a stronger and more versatile company. Offering broader expertise, increased capacity, and enhanced value - while preserving the reliability, responsiveness, and relationships our clients trust.

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Subsurface Insight for Confident Planning

We provide non-intrusive subsurface investigation services that support environmental and engineering teams by identifying utilities, characterizing site conditions, and helping clients understand the full picture of what lies beneath the surface.

How We Help Reduce Risk

Early subsurface insight helps identify underground utilities and unknown conditions before drilling or excavation begins, reducing the risk of strikes, delays, and costly changes.

Diagram showing restricted safe excavation zones and critical utility congestion zones for underground utility identification

IDENTIFY HIDDEN UTILITIES

Diagram comparing non-intrusive geophysical methods with direct push drilling for targeted subsurface investigation planning

Understanding subsurface conditions upfront allows teams to design targeted drilling and sampling programs that improve efficiency and reduce unnecessary disturbance.

PLAN TARGETED INVESTIGATIONS

By identifying subsurface conditions early, we help clients avoid costly surprises, delays, and rework later in the project lifecycle.

Diagram illustrating subsurface soil layers including topsoil, fill, native soil, and utilities for geophysical site assessment