Sander Geophysics Limited

What Sander Geophysics Limited does

Sander Geophysics Limited (SGL) is a privately held, Ottawa-headquartered airborne geophysical survey company founded in 1956 by Dr. George W. Sander and now led by co-presidents Luise Sander and Stephan Sander. The company provides worldwide airborne geophysical surveys for petroleum and mineral exploration, geological mapping, and environmental applications, operating a fleet of twelve specially modified aircraft — eight Cessna 208B Grand Caravans, two de Havilland DHC-6 Twin Otters, and two Airbus Helicopters AS350 B3s — across every continent including Antarctica.

SGL's product suite is anchored by AIRGrav, which the company describes as the only purpose-built airborne gravimeter in the world, and is surrounded by proprietary subsystems including the SGNav navigation system, SGDrape computer-aided drape flying system, SGDAS data acquisition system, SGFEM frequency-domain electromagnetic system, SGMethane off-axis ICOS methane detector, and scanning LiDAR. These systems can be deployed individually or as simultaneous multi-parameter surveys (gravity, magnetics, magneto-gradiometry, EM, radiometrics, methane, LiDAR) from the same platform. The company operates an in-house electronics workshop for instrument production, a Transport Canada Approved Maintenance Organization for aircraft modification and servicing, and a data processing department integrated with digital cartography. Nearly one-third of company resources are dedicated to research and development, and the cumulative operating record stands at more than 15 million line-kilometres of data and over 150,000 flight hours with no aircraft accidents or serious injuries.

SGL operates a project-based services revenue model in which airborne surveys are delivered under negotiated contracts with national and provincial geological surveys (USGS, Geological Survey of Ireland, Saudi Geological Survey, Geological Survey of Western Australia, Natural Resources Newfoundland and Labrador), with secondary exposure to mining and petroleum exploration companies and environmental monitoring clients such as Ontario Power Generation. Distribution is exclusively direct, with no reseller or channel partner relationships. The wholly-owned subsidiary Sander Geophysics Ireland Limited (SGIL), formed in 1996, covers European and African clients, while the parent company serves North American and other international markets.

Name

Sander Geophysics Limited

Legal name

Sander Geophysics Limited

Website

https://sgl.com

Company type

Private

Founded year

1956

Operating status

Operating

Headcount range

51–100 employees

Short description

Sander Geophysics Limited is an Ottawa-headquartered, family-owned airborne geophysical survey company providing worldwide gravity, magnetic, electromagnetic, radiometric, methane, and LiDAR surveys to government geological surveys and mining and petroleum exploration clients using a fleet of twelve specially modified aircraft.

Ownership category

akta.pro rank

Product category

Airborne Geophysical Survey Services

NAICS

Geophysical Surveying and Mapping Services (54136), Geophysical Surveying and Mapping Services (541360)

SIC

Oil & Gas Field Exploration Services (1382)

akta.pro primary industry

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

akta.pro secondary industry

Seismic & Geoscience Services (Acquisition, Processing, Interpretation) (EUALABAK)

Keywords

• Airborne geophysical surveys
• Gravity surveys
• Magnetic surveys
• Mineral exploration
• Petroleum exploration

Headquarters

HQ city

Ottawa

HQ country

Canada

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Technology or R&D, Infrastructure, Operations, Supply Chain

Revenue model

1. Airborne Geophysical Survey Services: Project-based contracts for conducting airborne geophysical surveys including gravity (AIRGrav), magnetic, magnetic gradient, electromagnetic, gamma-ray spectrometer, methane mapping, and scanning LiDAR services. Surveys performed using company's fleet of specially modified fixed-wing aircraft and helicopters. Revenue generated through negotiated contracts with government agencies and private sector exploration companies.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Sander Geophysics Limited conducts worldwide airborne geophysical surveys for petroleum and mineral exploration and for geological and environmental mapping. Surveys are flown with a fleet of 12 specially modified fixed-wing aircraft and helicopters equipped with proprietary gravity (AIRGrav), magnetic, electromagnetic, gamma-ray spectrometer, methane, and LiDAR sensors, and include expert in-house data processing and interpretation services.

Product overview

Sander Geophysics Limited (SGL) is an airborne geophysical survey company providing worldwide services for petroleum and mineral exploration, and geological and environmental mapping. The core product portfolio centers on AIRGrav, SGL's proprietary purpose-built airborne gravimeter system, complemented by a comprehensive suite of survey services including magnetic total field, magnetic gradient, frequency-domain electromagnetic (SGFEM), gamma-ray spectrometer, methane sensing (SGMethane), and scanning LiDAR systems. Additional proprietary technology includes SGNav navigation system, SGDrape computer-aided drape flying system, and SGDAS data acquisition system. These are offered both as standalone services and integrated into multi-parameter survey packages, particularly using the de Havilland DHC-6 Twin Otter aircraft which can acquire multiple geophysical parameters simultaneously. The company also offers marine gravity surveys via Marine AIRGrav, geoid applications, environmental monitoring services, and expert data interpretation services.

Differentiator

Problem solved

Functional benefit

Brands

• AIRGrav: Airborne Inertially Referenced Gravimeter - the only purpose-built airborne gravimeter designed specifically for the unique characteristics of the airborne environment.
• SGNav
• SGDrape
• SGFEM
• SGMethane
• SGDAS
• SGDIS

Products and services

• AIRGrav Airborne Gravity Survey Services Airborne gravity survey service using AIRGrav, the only purpose-built airborne gravimeter designed specifically for the airborne environment, featuring a three-axis inertially stabilized platform with high-resolution DGPS to correct for aircraft movement. Used by government geological surveys and exploration companies for high-resolution gravity mapping for mineral, petroleum, and geodetic applications.
• Marine AIRGrav Gravity Survey Services Marine gravity survey service using AIRGrav adapted for marine platform deployment, providing gravity plus optional magnetic and sonar data for offshore exploration and geodetic applications. Higher resolution than traditional marine gravimeters due to lower airborne-adapted vibration environment.
• Magnetic Total Field Surveys Airborne magnetometer survey service using optically pumped cesium sensors with 0.005 nT sensitivity and AIRComp real-time digital compensation providing 0.01 nT system resolution. Delivers high-resolution magnetic data reflecting underlying geology for geological mapping and mineral exploration.
• Magnetic Gradient Surveys Low-level magnetic gradiometer surveys measuring vertical and/or horizontal magnetic gradients using two cesium magnetometers with fixed separation, providing enhanced near-surface anomaly detection compared to total field magnetic measurements for mineral exploration targets.
• SGFEM Frequency-Domain Electromagnetic Surveys Airborne frequency-domain electromagnetic survey service using a four-frequency (925, 3,005, 11,962, 27,933 Hz) wingtip-mounted SGFEM transmitter/receiver system for high-resolution conductivity mapping and depth estimation of subsurface anomalies. Includes 50/60 Hz power line monitor for cultural interference detection.
• Gamma-ray Spectrometer (Radiometric) Surveys Airborne radiometric survey service using NaI crystal gamma-ray detectors with full 256-channel recording for measurement of radioactive nuclide distribution. Used for geological mapping, mineral exploration, and environmental monitoring including baseline radiation surveys and contamination detection.
• SGMethane Methane Gas Sensing Surveys Airborne methane detection service using an ultra-sensitive OA-ICOS analyzer recording at up to 20 Hz for direct detection of hydrocarbon gases. Mountable on fixed-wing or helicopter platforms for petroleum exploration support and environmental methane mapping.
• Scanning LiDAR Aerial Surveying Airborne laser scanning service using Riegl LMS-Q280i sensors to collect high-resolution digital terrain models and RGB imagery for environmental assessment, geotechnical applications, and terrain corrections to gravity and other geophysical datasets.
• AIRGrav Geoid Applications Geoid determination and modelling service using airborne gravity data acquired with AIRGrav, including horizontal gravity component measurements to support geoid accuracy validation at 2-3 cm standard deviation for geodetic applications.
• Multi-Parameter Survey Campaigns Integrated survey service offering simultaneous acquisition of multiple geophysical parameters (electromagnetics, gravity, magnetics, radiometrics) from Twin Otter aircraft, providing comprehensive geological characterization in a single campaign for national mapping programs and exploration companies.
• Environmental Monitoring Surveys Gamma-ray spectrometer based environmental mapping service for detection and quantification of natural and anthropogenic radiation, including baseline radiation surveys around nuclear facilities, contamination detection, and environmental compliance support.
• Radiometric Baseline Monitoring Surveys Specialized radiometric survey service for baseline monitoring and contamination detection, including ground and airborne surveys of nuclear facilities, military establishments, and industrial sites for regulatory and public safety applications.
• Data Interpretation Services Expert interpretation service for acquired airborne geophysical data including background research, data processing enhancement, geological modelling (3D forward, 2.5D forward, Werner deconvolution), and comprehensive technical reporting delivered by experienced SGL geoscientists.

Quantifiable outcome

• Achieved noise level of 0.3 mGal in Turner Valley survey with over 12,000 line km of data
• +4 more outcomes

Named customers7 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration6 records

Feature9 records

Partnerships

One partnership is on record.

• Saudi Geological SurveycoreStrategic or Co-development Partner · 1 October 2020Sander Geophysics signed agreement with Saudi Geological Survey to provide high resolution airborne magnetic and radiometric data over part of the Arabian Shield in western Saudi Arabia. This survey is part of the Saudi Regional Geological Survey Program, a massive six-year initiative combining airborne geophysics, geochemical surveys, and detailed geological mapping. Stephan Sander (Co-President) participated in Mines and Money Online Connect forum to discuss the partnership.

Scale indicators6 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• SkyTEM Surveys: Danish airborne time-domain electromagnetic survey specialist serving mineral exploration and groundwater mapping. Overlapping customer base with SGL, particularly in government geological survey and mining exploration work.
• Bell Geospace: Houston-based airborne geophysical survey company specializing in gravity, magnetic, and FTG surveys. Direct competitor to SGL's AIRGrav service line, serving overlapping oil & gas and government exploration customers.
• New-Sense Geophysics: Australian airborne geophysical survey company offering magnetic, radiometric, and gravity services primarily for mineral exploration in the Australasia region. Comparable in service offering to SGL but with regional focus.
• Xcalibur Multiphysics: Global airborne geophysical survey provider offering gravity, magnetic, electromagnetic, and radiometric surveys for mineral and petroleum exploration. Closest comparable to SGL in fleet scale and multi-parameter offering.
• Geotech Airborne: Canadian airborne geophysical survey company offering VTEM, ZTEM, and other EM/magnetic systems for mineral exploration. Comparable business model serving overlapping mining and government exploration clients.

Broad incumbents

• Fugro: Dutch global leader in geo-data services offering airborne geophysical, geotechnical, and survey services across multiple industries. Larger and more diversified than SGL but overlaps in airborne survey work for government and resource exploration.
• TGS: Norwegian multi-client geophysical data library company providing seismic, magnetic, and gravity data to the oil & gas industry. Comparable in offering gravity and magnetic data products to energy exploration clients.
• CGG (Compagnie Générale de Géophysique): French global geoscience company providing seismic acquisition and multi-client data library services for oil & gas exploration. While primarily marine/seismic, overlaps with SGL in providing exploration geophysical data services to energy and mining sectors.

Others

• RSI (Radiation Solutions Inc.): Canadian manufacturer of airborne gamma-ray spectrometer systems (RS-500) integrated into SGL's survey aircraft. Ecosystem supplier rather than competitor, but closely tied to SGL's radiometric survey offering.

Emerging players

• Peterson Projects & Solutions: Provides integrated geophysical, geotechnical, and inspection services to energy clients with airborne capability. Smaller scale than SGL but overlapping offering in airborne survey and inspection work.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/SanderGeophysics
• LinkedInlinkedin.com/company/sander-geophysics
• Xx.com/SanderGeo

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries1 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 Sander Geophysics Limited