Terraquest

What Terraquest does

Terraquest Ltd. is a privately owned, Canadian-registered airborne geophysical survey company founded in 1984 and headquartered in Markham, Ontario. The firm provides end-to-end airborne survey services (planning, data acquisition, processing, and final map preparation) to the natural resources exploration sector, serving mining companies (DeBeers, Rio Tinto, Teck, Gold Fields, Ashton), oil and gas companies (Shell, Chevron), and government agencies (USGS, Grassalco). Since inception, Terraquest reports over 1,000 fixed-wing and helicopter surveys completed across 30 countries on five continents, with preliminary maps delivered within 48 hours of acquisition.

The company's service offering is built on six proprietary, trademarked sensor systems deployed across five aircraft platforms: Resolution™ Magnetic (scalar magnetometry), Horizon™ Grad (three-sensor cesium vapour horizontal gradiometer with 0.005 nT sensitivity), Matrix™ VLF (passive VLF-EM with up to four-station orthogonal coil recording, custom-designed by Magenta Geophysics), Max-Gamma™ (gamma-ray spectrometry using Alpha Spectra crystals), Equilibrium Gravity™ (airborne gravimetry with Coriolis, drift, and latitude corrections), and EM-Power™ HTEM (helicopter time-domain EM). Sensors operate on King Air C90, Piper Navajo, and Cessna U206 fixed-wing aircraft and two helicopter configurations (multi-sensor and single-sensor), with integrated AGIS/SDAS data acquisition providing real-time GPS navigation and digital flight path confirmation. Aircraft maintenance is handled through a core partnership with Enterprise Aviation's AMO facility in Oshawa, Ontario.

Terraquest operates a project-based professional services revenue model. Customers request quotes through the company's "Easy Quote" web form, and contracts are managed directly by General Manager Stephen Barrie and Regional Sales lead John Currie. The company employs 18 professionals — geophysicists, geologists, data processors, aircraft engineers, and pilots — under a four-person management team with over 120 years of combined experience. Ownership appears concentrated with the Barrie family (Howard Barrie as President, Charles Q. Barrie as Managing Partner and VP of Operations, Stephen Barrie as General Manager). No institutional investors, external funding rounds, M&A activity, or AI/ML capabilities are disclosed in the available data.

Name

Terraquest

Legal name

Terraquest Ltd.

Website

https://terraquest.ca

Company type

Private

Founded year

1984

Operating status

Operating

Headcount range

1–10 employees

Short description

Terraquest Ltd. is a Canadian privately owned airborne geophysical survey company, founded in 1984, that provides end-to-end magnetic, electromagnetic, radiometric, and gravity survey services to mining, oil & gas, and government exploration clients across 30 countries using a fleet of fixed-wing and helicopter platforms.

Ownership category

akta.pro rank

Product category

Airborne Geophysical Survey Services

NAICS

Geophysical Surveying and Mapping Services (54136), Support Activities for Mining (213)

SIC

Oil & Gas Field Exploration Services (1382), Services-Commercial Physical & Biological Research (8731)

akta.pro primary industry

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

akta.pro secondary industries

Satellite Imagery & Remote Sensing Geospatial Platforms (BPAMANAM), Remote Sensing & Earth Observation Analytics (Satellite/UAV/LiDAR, Image Processing) (EUAHAKAD)

Keywords

• Airborne geophysical surveys
• Magnetic surveys
• Mineral exploration services
• Airborne gravity surveys
• Electromagnetic surveys

Headquarters

HQ city

Markham

HQ country

Canada

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Airborne Geophysical Survey Services: Complete end-to-end airborne geophysical survey services including survey planning, data acquisition, processing, and final map preparation. Revenue generated through project-based contracts for exploration companies and government agencies.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

Terraquest provides end-to-end airborne geophysical survey services for natural resource exploration. It plans, acquires, processes, and delivers geophysical datasets using proprietary sensor systems (magnetic, horizontal gradient magnetic, VLF-EM, radiometric, gravity, and time-domain EM) mounted on company-owned fixed-wing aircraft and helicopters. Surveys are commissioned by mining, oil and gas, and government clients worldwide for mineral, kimberlite, hydrocarbon, uranium, and groundwater exploration.

Product overview

Terraquest is an airborne geophysical survey company offering a portfolio of proprietary sensor technologies deployed on multiple aircraft platforms. The core product suite includes Resolution™ Magnetic (scalar magnetometry), Horizon™ Grad (horizontal gradiometer with 3 cesium sensors), Matrix™ VLF (passive VLF-EM for near-surface detection), Max-Gamma™ (gamma ray spectrometry), and Equilibrium Gravity™ (airborne gravimetry), plus EM-Power™ HTEM for helicopter time-domain electromagnetic surveys. These sensors can be deployed on five platform configurations: three fixed-wing aircraft (King Air C90, Piper Navajo, Cessna U206) and two helicopter configurations (multi-sensor and single-sensor). Terraquest provides complete survey services from planning through data acquisition to final map preparation, integrating multiple survey types into consistent results.

Differentiator

Problem solved

Functional benefit

Products and services

• Resolution™ Magnetic Survey High-resolution airborne magnetic survey service using proprietary scalar magnetometers to detect variations in the Earth's magnetic field caused by subsurface geological features. Used by mining and oil & gas clients for precious and base metals, kimberlite, and hydrocarbon exploration.
• Horizon™ Horizontal Gradiometer Survey Airborne horizontal gradiometer survey using three cesium vapour sensors mounted on wing tips and tail to deliver 0.005 nT sensitivity for highest-resolution targeting of shallow targets including kimberlites between flight lines.
• Matrix™ VLF-EM Survey Digital VLF-EM survey using ultra-low frequency electromagnetic waves from ground-based navigation stations for near-surface detection. Three-axis orthogonal coils record independently from up to four VLF stations with full parameterization. Targeted at shallow diamond, gold, and base metal exploration.
• Max-Gamma™ Airborne Radiometric Survey Airborne gamma ray spectrometry survey using Alpha Spectra crystal packs with individual signal processing to map natural radioactivity from potassium, uranium, and thorium isotopes for direct uranium exploration and lithological mapping.
• Equilibrium Gravity™ Airborne Survey Airborne gravity survey measuring gravitational field variations using gravimeters to determine depth, size, and shape of subsurface anomalies. Corrections are applied for drift, Coriolis, elevation, and latitude effects. Used for hydrocarbon and base metal exploration.
• EM-Power™ HTEM Survey Helicopter time-domain electromagnetic survey system for deep imaging of subsurface conductivity structures, applied to base metal exploration and lead-zinc targeting.

Quantifiable outcome

• Delivers updated preliminary map images within 48 hours of acquisition
• +1 more outcomes

Named customers9 records

Segments5 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Two partnerships are on record, tiered core.

• Enterprise AviationcoreImplementation/ SI/ Consulting PartnerRegulatory AMO (Approved Maintenance Organization) facility located in Oshawa, Ontario, Canada responsible for maintenance and safety certification of Terraquest's aircraft fleet including King Air C90, Piper Navajo, and Cessna U206.
• Magenta Geophysics Ltd.coreTechnology or IntegrationTechnology partner that designed and built the Matrix™ Digital VLF-EM frequency system at Terraquest's request. Developed by Dr. Petr Kuzmin, the system represents proprietary technology developed through the partnership.

Scale indicators4 records

Recent moves4 records

Expansion highlights4 records

Broad incumbents

• CGG: Global geoscience company with multi-modal airborne, marine, and land geophysical acquisition plus data libraries; broader incumbent with overlapping airborne survey capabilities serving the same mining and O&G clients.
• TGS: Multi-client geoscience data company providing seismic, well, and interpretive data for oil & gas exploration; competes indirectly via data products and has invested in airborne/sea-bed capabilities adjacent to Terraquest's hydrocarbon exploration work.
• Fugro: Large geo-data specialist offering airborne, marine, and land site characterization across geoscience markets; overlaps with Terraquest in airborne geophysical surveys as part of a broader services portfolio.

Direct peers

• Bell Geospace: Specialist in airborne Full Tensor Gravity (FTG) and other geophysical surveys for oil & gas and mineral exploration; a focused peer in airborne gravity services overlapping Terraquest's Equilibrium Gravity™ line.
• SkyTEM: Danish airborne time-domain EM (HTEM) survey provider for groundwater, mineral, and geotechnical applications; competes in helicopter EM with Terraquest's EM-Power™ HTEM offering.
• Geotech Ltd. Canadian airborne geophysical company offering VTEM, magnetic, and radiometric surveys on helicopter and fixed-wing platforms; directly competes with Terraquest in mineral exploration airborne services.
• Xcalibur Airborne Geophysics: Global airborne geophysical survey company offering magnetic, radiometric, electromagnetic, and gravity surveys for mineral and hydrocarbon exploration; directly comparable in service mix and commodity-exposure profile.
• Sander Geophysics Limited: Canadian airborne geophysical survey operator offering magnetic, radiometric, electromagnetic, and gravity surveys on fixed-wing and helicopter platforms — closely comparable to Terraquest's service scope and customer base in mineral and oil & gas exploration.

Emerging players

• New-Sense Geophysics: Specialist airborne magnetometer and VTEM survey provider; smaller Canadian peer with comparable service offerings to Terraquest in mineral exploration magnetic and EM surveys.

Others

• EFTAS Remote Sensing: European remote-sensing and geospatial services firm; adjacent rather than directly competitive, useful as a comparable for the remote-sensing analytics layer of airborne survey data.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/Terraquest_Ltd

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

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 Terraquest