EGS Survey

What EGS Survey does

EGS Survey (legal name: EGS (International) Limited) is a privately held, independent UK-headquartered international marine survey group founded in 1974, originally as Electronic and Geophysical Services. The group operates through 14 owned offices across 12 countries spanning Europe, the Americas, Asia-Pacific, Australia, and the Middle East, and is supported by a joint venture (PDE Offshore Corporation) in Taiwan. EGS provides multidisciplinary hydrographic, geophysical, geotechnical, metocean/environmental, UXO detection, marine minerals, and positioning/construction-support services to four primary enterprise verticals: submarine telecommunications cable operators (where it reports 750,000+ km of cable route surveyed), offshore energy (oil and gas plus renewables with an emphasis on offshore wind), ports and marine infrastructure developers, and metocean/environmental monitoring clients.

The underlying technical platform combines a conventional sensor stack (multibeam echo sounders, side scan sonars, sub-bottom profilers including pingers/chirps/sparkers/boomers, high-resolution digital seismic systems, refraction systems, magnetometers, and the EIVA Katria Scanfish ROTV for UXO work, deployed to IMAS 09.06 and Offshore Wind Accelerator Guidelines) with a globally distributed Remote Processing Centre (RPC) network. The RPCs run 24/7 data processing, real-time QC, and reporting via proprietary encrypted compression software and Starlink satellite connectivity from project sites, enabling near real-time data delivery within approximately 24 hours of acquisition and reducing offshore personnel, HSE exposure, and project carbon footprint. Geotechnical capability includes dedicated drillships rated for 15-200 m water depths with down-the-hole drilling, rotary/vibratory/push coring, piezocone penetration testing, and onboard laboratory services.

The business model is project-based professional services sold through direct enterprise engagement under formal contractual arrangements, with bespoke survey solutions tailored to specific client requirements and no publicly disclosed pricing. Revenue is generated from a long book of recurring and new project wins across 450+ clients and 5,094+ projects completed over the firm's 50+ years. Headcount of more than 450 professionals spans geophysics, geology, oceanography, surveying, software engineering and electronics. The group is privately held with no parent company, no external private equity or venture capital involvement disclosed, and no public ticker. Group companies carry ISO 9001, ISO 14001, and ISO 45001 certifications, GDPR-compliant data processing, and an annual UK Modern Slavery Act statement.

Name

EGS Survey

Legal name

EGS (International) Limited

Website

https://egssurvey.com

Company type

Private

Founded year

1974

Operating status

Operating

Headcount range

51–100 employees

Short description

EGS Survey is an independent UK-headquartered marine survey group founded in 1974, operating 14 offices across 12 countries to deliver hydrographic, geophysical, geotechnical, UXO, and metocean services to submarine telecom, offshore energy, renewables, and marine infrastructure clients worldwide.

Ownership category

akta.pro rank

Product category

Marine Survey Services

NAICS

Geophysical Surveying and Mapping Services (54136), Geophysical Surveying and Mapping Services (541360), Navigational Services to Shipping (48833), Support Activities for Mining (213)

SIC

Oil & Gas Field Exploration Services (1382), Oil & Gas Field Services, Nec (1389)

akta.pro primary industry

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

Keywords

• Marine survey services
• Hydrographic surveying
• Geophysical surveying
• Submarine cable surveys
• Offshore construction support

Headquarters

HQ city

Sherfield English

HQ country

United Kingdom

HQ region

Europe

Offices17 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Marine Survey Services: Project-based professional services providing hydrographic, geophysical, and geotechnical survey services to telecommunications, energy, and marine infrastructure sectors. Services are provided under formal contractual arrangements with specialized project teams deployed to client sites globally.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

EGS Survey provides project-based marine survey services to enterprise clients, combining hydrographic, geophysical, and geotechnical disciplines for submarine cable route surveys, offshore oil and gas and renewable energy construction support, metocean and environmental monitoring, marine minerals exploration, and UXO detection. The company operates a global fleet backed by Remote Processing Centres that deliver survey data within 24 hours of acquisition, serving telecommunications, energy, ports, and marine infrastructure clients across 12 countries.

Product overview

EGS Survey is a leading international marine survey company with over 50 years of experience providing specialized hydrographic and geophysical survey services. The company operates as a single integrated platform with multiple specialized service lines: Hydrographic and Geophysical Surveys, Positioning and Construction Support, Metocean and Marine Environment, Geotechnical Services, Marine Minerals Services, UXO Surveys, and Remote Support and Processing. These services serve four primary industry verticals: Telecommunications (submarine cable route surveys exceeding 750,000 km), Energy (offshore construction and foundation surveys), Ports and Marine Infrastructure (coastal development surveys), and Metocean and Environmental monitoring. The company operates 14 offices across 12 countries with over 450 staff worldwide, offering both offshore survey operations and globally distributed Remote Processing Centres for real-time data processing and reporting.

Differentiator

Problem solved

Functional benefit

Products and services

• Hydrographic and Geophysical Surveys Comprehensive hydrographic and geophysical survey services combining multibeam echo sounders, side scan sonars, sub-bottom profilers, and high-resolution seismic systems for projects from coastal environments to full ocean depths, adhering to IHO S-44 standards. Targeted at telecommunications, energy, and marine infrastructure enterprise clients requiring precise seabed and sub-surface characterization.
• Positioning and Construction Support Offshore construction positioning services including dimensional control surveys for FPSOs, TLPs, SPARs and jackets, surface positioning support, ROV survey and inspection support, and installation support such as LBL jumper metrology and pile guide frame positioning. Targeted at oil and gas operators, renewable energy developers, and offshore construction contractors.
• Metocean and Marine Environment Multi-disciplinary oceanographic and environmental services including wave height measurement, weather and current monitoring, tide datum modeling, and seawater parameter measurements such as temperature, salinity, turbidity, and dissolved oxygen. Targeted at civil engineering, construction, telecommunications, power, maritime, energy, and mining clients requiring long-term metocean monitoring and environmental impact assessments.
• Geotechnical Services Deep and shallow ground investigation services using dedicated drillships for 15-200m water depths with down-the-hole drill systems, rotary, vibratory and push coring, piezocone penetration testing, and onboard laboratory services, integrated with geophysical and hydrographic survey capabilities. Targeted at offshore energy, submarine cable, and marine infrastructure clients requiring seabed and soil characterization.
• Marine Minerals Services Global marine geoscience solutions for the marine minerals industry including exploration strategy consulting, survey design, reserve estimate analysis, environmental modeling, and strategic engineering advisory for polymetallic nodules, sulphides, and crusts. Targeted at marine minerals exploration and mining companies.
• UXO Surveys Unexploded ordnance detection surveys for offshore projects using marine magnetometers (including the EIVA Katria Scanfish ROTV system), high-resolution multibeam echo sounders, and side scan sonar, with data processing through Oasis Montaj software and ALARP risk reduction certification aligned with IMAS 09.06 and Offshore Wind Accelerator guidelines. Targeted at offshore wind developers and marine infrastructure clients operating in suspected munition-contaminated seabed areas.
• Remote Support and Processing Globally distributed Remote Processing Centres providing 24/7 data processing, quality control, and reporting through dedicated satellite internet (Starlink) connectivity, enabling near real-time data delivery and reducing offshore personnel requirements, HSE exposure, and project carbon footprint. Targeted at enterprise telecommunications, energy, and marine infrastructure clients requiring fast survey data turnaround.

Quantifiable outcome

• 750,000+ km of submarine cable route surveyed
• +3 more outcomes

Named customers4 records

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Scale indicators7 records

Recent moves20 records

Expansion highlights5 records

Direct peers

• Fugro: Dutch-headquartered global leader in offshore geophysical, geotechnical, and survey services for submarine cables, offshore wind, and oil & gas. EGS directly competes with Fugro across all major service lines and geographies.
• Boskalis (Gardline): Royal Boskalis Westminster owns Gardline, a long-established UK-based marine geophysical and hydrographic survey company with a comparable client base in oil & gas, renewables, and submarine cables.
• Ocean Infinity: Marine survey and autonomous technology company offering hydrographic, geophysical, and geotechnical services. EGS and Ocean Infinity compete directly for offshore wind and cable route survey contracts, with Ocean Infinity pushing an autonomous-vessel model.
• MMT: Swedish marine survey specialist (acquired by Ocean Infinity) offering hydrographic, geophysical, and UXO survey services, with strong overlap to EGS's offshore wind and submarine cable work.

Broad incumbents

• Subsea7: Global subsea engineering, construction, and services company with significant survey, ROV, and positioning capabilities serving the same offshore energy and subsea cable markets as EGS.
• Saipem: Italian offshore engineering and drilling major with integrated offshore survey and positioning services for pipeline, subsea, and offshore wind installation — a broader-portfolio competitor to EGS in the energy vertical.

Emerging players

• CSA Ocean Sciences: US-based marine environmental and offshore survey company with comparable metocean, environmental, and submarine cable survey capabilities, focused on the Americas and adjacent offshore markets.
• China Oilfield Services Limited (COSL): Chinese offshore oilfield services major with growing geophysical and offshore survey capabilities, increasingly competing for Asia-Pacific and global offshore energy and cable survey work.
• TDI-Brooks International: Texas-based oceanographic and geotechnical survey company providing offshore site investigation and pipeline/cable route surveys directly comparable to EGS's energy and submarine cable offerings.

Regional players

• ABPmer: UK-based marine consultancy providing metocean, coastal, and offshore survey services overlapping with EGS's port infrastructure, metocean, and environmental service lines, primarily serving the UK and European markets.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks7 records

Key highlights7 records

Customer concentration

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries14 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 EGS Survey