Magee Geophysical Services

What Magee Geophysical Services does

Magee Geophysical Services LLC is a Reno, Nevada-based geophysical contractor specializing in land gravity and ground magnetic surveys. Founded in 1978 by Christopher Magee and now under the ownership of Brian Page following the founder's death in May 2025, the firm serves mining, oil and gas, geothermal, engineering, and groundwater clients in more than 40 countries. Operations run 24/7 with multiple field crews executing simultaneously, and the company has accumulated over 100,000 gravity stations and 10,000+ line-kilometers of ground magnetic data since 2005.

The firm's technical stack is built on industry-standard instrumentation: Scintrex CG5 and Lacoste & Romberg gravity meters, Geometrics G-858 magnetometers, and Trimble GPS receivers. Data are processed through Geosoft Oasis Montaj and Magmap2000. Service delivery emphasizes remote and logistically demanding environments, including arctic and rainforest deployments, where field-execution capability is a primary differentiator against less experienced contractors. The company also offers time-lapse microgravity for reservoir monitoring, extending conventional one-shot surveys into recurring monitoring engagements.

The business model is project-based services revenue, priced per gravity station and per line-kilometer of magnetic coverage, with retainer-style time-lapse microgravity work for reservoir clients. Customers are enterprise resource-exploration and infrastructure operators; the company is privately held with no public revenue disclosure. Strategic positioning is that of a long-tenured specialty contractor monetizing operational expertise and an extensive proprietary data archive rather than proprietary technology.

Name

Magee Geophysical Services

Legal name

Magee Geophysical Services LLC

Website

https://www.gravityandmag.com

Company type

Private

Founded year

1978

Operating status

Operating

Headcount range

11–50 employees

Short description

Magee Geophysical Services is a Reno, Nevada-based geophysical contractor performing land gravity and ground magnetic surveys for mining, oil and gas, geothermal, engineering, and groundwater clients across more than 40 countries.

Ownership category

akta.pro rank

Product category

Geophysical Survey Services

NAICS

Geophysical Surveying and Mapping Services (541360), Support Activities for Mining (213)

SIC

Oil & Gas Field Exploration Services (1382)

akta.pro industry

PRIMARYIMAKAKAA

Mineral Exploration & Geoscience Services (Geology, Geophysics, Geochemistry, Resource Modeling)

Industrials, Manufacturing & Construction/Metals & Mining/Mining Services & Contracting (Exploration, Drilling, Blasting, Mine Operations)

SECONDARYEUALABAK

Seismic & Geoscience Services (Acquisition, Processing, Interpretation)

Energy, Utilities & Environment/Oil & Gas (Upstream, Midstream, Downstream and Refining)/Oilfield Services & Drilling (OFS)

SECONDARYEUAMAEAA

Geothermal Resource Exploration & Assessment (Geology, Geophysics, Geochemistry)

Energy, Utilities & Environment/Renewable Energy (Solar, Wind, Hydro & Geothermal)/Geothermal Energy (Power & Direct Use)

Keywords

• Land gravity surveys
• Ground magnetic surveys
• Geophysical exploration services
• Mineral exploration surveys
• Subsurface geophysical imaging

Headquarters

HQ city

Reno

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Infrastructure, Marketing or Sales

Revenue model

1. Geophysical Survey Services: Project-based professional services for land gravity surveys, ground magnetic surveys, and related geophysical services. Services are tailored to client project needs including mineral, oil and gas, geothermal exploration, groundwater investigations, and reservoir monitoring.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

Magee Geophysical Services LLC delivers land gravity and ground magnetic survey services for mining, oil and gas, geothermal, groundwater, and engineering projects. The company acquires high-precision gravity and magnetic field data using industry-standard instruments, then processes and interprets it through geophysical inversion to produce subsurface models for exploration and resource identification. Services are executed globally with multiple field crews operating simultaneously across diverse terrains.

Product overview

Magee Geophysical Services LLC provides a unified suite of geophysical survey services centered on land gravity and ground magnetic surveying. The core offerings are Land Gravity Surveys (using Scintrex CG5 and Lacoste & Romberg gravity meters) and Ground Magnetic Surveys (using Geometrics G-858 magnetometers), which are enhanced by geophysical inversion services that transform raw field data into subsurface density and susceptibility models. Supporting modules include Consulting Services for project planning and execution, Data Processing for reduction and interpretation, and Exploration Grid Design/GPS Services for survey positioning. Together, these services serve mineral, oil and gas, geothermal exploration, groundwater investigations, and reservoir monitoring applications across over 40 countries.

Differentiator

Problem solved

Functional benefit

Products and services

• Land Gravity Surveys High-precision land gravity surveys using Scintrex CG5 (0.001 mGal) and Lacoste & Romberg Model G (0.01 mGal) gravity meters to detect density contrasts and subsurface structure through variations in Earth's gravitational field. Service is delivered to mining, oil and gas, geothermal, groundwater, and engineering clients worldwide.
• Ground Magnetic Surveys High-resolution ground magnetic surveys using Geometrics G-858 Cesium vapor magnetometers (0.001 nT resolution) to record Total Magnetic Intensity (TMI) variations, detect subsurface structures, and delineate favorable lithologies. Includes continuously operating base magnetometer for diurnal correction and storm monitoring. Delivered to mining, geothermal, oil and gas, and engineering clients.
• Geophysical Inversion Services Transforms raw gravity and magnetic data into clear, actionable subsurface density and susceptibility models for exploration decisions, reservoir monitoring, and resource delineation. Includes 2D and 3D modeling for robust subsurface interpretations.
• Consulting Services Expert guidance from professional geophysical consultants including survey design, logistical planning, QC/QA, field supervision, data processing, interpretive product generation, and personnel training. Helps clients streamline exploration workflows, improve accuracy, and maximize project efficiency.
• Exploration Grid Design and GPS Services Establishment of accurate exploration grids for geophysical and geochemical surveys, centimeter-accuracy drillhole location surveys using Trimble GPS, and calculation of local site transformations to known datums.
• Data Processing In-field data processing using Geosoft Oasis Montaj including Complete Bouguer Anomaly reduction, terrain corrections, color-contoured grids and maps, derivatives, diurnal corrections, and reduced-to-pole transformations.

Named customers5 records

Segments5 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

Feature5 records

Partnerships

Five partnerships are on record, tiered core.

• GeometricscoreTechnology or IntegrationEquipment vendor for Geometrics G-858 Cesium vapor magnetometers used for ground magnetic surveys. Company uses Geometrics hardware for high-resolution magnetic data acquisition with 0.001 nT resolution.
• ScintrexcoreTechnology or IntegrationEquipment vendor for Scintrex CG5 gravity meters (0.001 mGal resolution) used for high-precision land gravity surveys. Key instrumentation for company's core gravity survey services.
• Lacoste & RombergcoreTechnology or IntegrationEquipment vendor for Lacoste & Romberg Model G gravity meters (0.01 mGal resolution) used for land gravity surveys. Additional instrumentation supporting company's gravity survey capabilities.
• Geosoft (Oasis Montaj)coreTechnology or IntegrationSoftware vendor for Geosoft Oasis Montaj data processing platform. Company uses this industry-standard software for gravity data processing, reduction to Complete Bouguer Anomaly, terrain corrections, and magnetic data processing workflows.
• TrimblecoreTechnology or IntegrationEquipment vendor for Trimble GPS/GNSS survey equipment. Company uses geodetic-grade Trimble GPS systems (real-time and post-processed) for centimeter positioning accuracy in survey operations.

Scale indicators9 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• Zonge International: U.S.-based geophysical contractor offering ground-based electrical, electromagnetic, and geophysical survey services for mining, environmental, and geotechnical clients — directly comparable to Magee's land-based professional geophysical services model.
• Sander Geophysics: Canadian airborne and ground geophysical survey contractor serving mineral exploration and government clients worldwide; competes with Magee in magnetic and gravity survey deliverables for international mining clients.
• Phoenix Geophysics: Specialist in ground electromagnetic and DC/IP/resistivity surveys for mineral exploration globally; comparable to Magee as a land-based professional geophysical services firm targeting mining and exploration clients.
• EDCON-PRJ Inc. U.S. provider of high-resolution ground gravity, magnetic, and gamma-ray spectrometric surveys for mining, oil & gas, and environmental projects — a direct modality-level competitor to Magee.

Broad incumbents

• Dawson Geophysical Company: Established U.S.-based geophysical services company (publicly traded, formerly NASDAQ) historically focused on land 3-D seismic acquisition for oil & gas exploration; broad incumbent in land-based exploration geophysics with overlap in target client base.
• Compagnie Générale de Géophysique (CGG): Global geoscience major offering multi-modality geophysical acquisition and processing (seismic, gravity, magnetics) for oil & gas, mining, and environmental markets; serves many of the same enterprise clients as Magee but at significantly larger scale.
• TGS (formerly TGS-NOPEC): Global multi-client geoscience data company providing seismic, gravity, and magnetic datasets and library products for exploration; comparable as a broader incumbent offering gravity/magnetic deliverables (via licensing rather than acquisition).

Emerging players

• SkyTEM Surveys: Airborne electromagnetic survey provider using helicopter-borne systems for groundwater, mineral, and geothermal exploration; an emerging player whose airborne EM data increasingly substitutes for ground-based geophysical surveys including gravity/magnetics.
• Geotech Airborne Geophysical Surveys: Airborne geophysical survey provider specializing in helicopter-borne VTEM and ZTEM electromagnetic systems for mineral exploration — comparable as an emerging alternative delivery model that competes for the same exploration budget.
• Groundmetrics Inc. U.S.-based provider of ground-based geophysical surveys for mining, oil & gas, and environmental applications including surface-to-borehole and surface-to-surface electrical methods; an emerging niche player with overlapping land-survey service offerings.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/magee-geophysical-services-llc

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Magee Geophysical Services