Engineering Geology Ltd

What Engineering Geology Ltd does

Engineering Geology Ltd (EGL) is a specialist New Zealand geotechnical, earthquake and dam engineering consultancy founded in 1986 and headquartered in Albany, Auckland. The firm delivers site investigations, foundation and retaining wall design, slope stability and liquefaction assessment, dam engineering (water storage, tailings, and HDPE-lined ponds up to 40m height), mining and engineered landform design, advanced numerical analysis, and expert witness services. Its core technology stack consists of industry-standard numerical modeling software — Slope/W, Sigma/W, Seep/W, Quake/W, Shake, Settle3D, Geostudio, Wallap, LPile, DEEPSOIL, FLAC, and Plaxis — applied to slope stability, deformation, seepage, seismic, and dynamic finite element analyses. EGL applies human expert judgment and chartered professional engineering certification rather than proprietary AI or automated systems; deliverables are signed reports, designs, and construction monitoring.

EGL serves five primary customer segments: residential property developers (150+ jobs per year in greater Auckland), commercial and infrastructure developers, international mining corporations requiring tailings and engineered landform design, dam and water resource owners, and government/insurer clients seeking expert evidence and peer review. The firm has completed over 8,000 jobs since 1986, designed over 50 water storage dams, and delivered projects across 9 international markets (Australia, New Caledonia, Indonesia, Papua New Guinea, Fiji, Laos, Philippines, Africa, Eastern Europe). Its go-to-market is direct sales-led project consulting, with fees quoted per project based on scope and complexity — there is no standard pricing or productized SaaS offering. The firm is led by three directors (Trevor Matuschka since 1989, Tony Fairclough as Managing Director since 2023, Eric Torvelainen) and is privately held with no disclosed institutional investors, parents, or subsidiaries. Marketing is carried primarily through professional reputation, ACE New Zealand/Engineering New Zealand/NZSOLD memberships, and referrals.

Name

Engineering Geology Ltd

Legal name

Engineering Geology Ltd

Website

https://egl.co.nz

Company type

Private

Founded year

1986

Operating status

Operating

Headcount range

11–50 employees

Short description

Engineering Geology Ltd is a New Zealand specialist geotechnical, earthquake and dam engineering consultancy founded in 1986, delivering site investigations, dam and mining infrastructure design, and expert witness services to residential, commercial, mining, and government clients in New Zealand and nine international markets.

Ownership category

akta.pro rank

Product category

Geotechnical Engineering Consulting

NAICS

Engineering Services (54133), Architectural, Engineering, and Related Services (5413)

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Geotechnical Design, Engineering & Consulting (Analysis, Design, Peer Review) (IMAFAOAK)

akta.pro secondary industries

Geotechnical & Subsurface Engineering Consulting (BPAHAIAB), Geotechnical, Hydrogeological & Seismic Engineering (Slope Stability, Ground Support, Dewatering) (IMAKAOAN), Mine Site Engineering & Detailed Design (Civil/Structural/Mechanical/E&I) (IMAKAOAA), Geotechnical Site Investigation & Engineering Geology (Borings, Lab Testing) (EUAHAFAE)

Keywords

• Geotechnical engineering
• Dam engineering services
• Earthquake engineering
• Site investigations
• Mining tailings storage

Headquarters

HQ city

Porirua

HQ country

New Zealand

HQ region

Oceania

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Geotechnical Consulting Services: Project-based professional consulting engagements providing geotechnical engineering, earthquake engineering, and dam engineering services. Revenue is generated through fees for site investigations, reports, design recommendations, construction monitoring, and expert advisory services. Engagements are typically scoped per project with fees based on scope and complexity.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

Engineering Geology Ltd (EGL) is a specialist consulting firm that provides geotechnical, earthquake, and dam engineering services including site investigations, foundation and retaining wall design, slope stability assessments, liquefaction analysis, earthworks design, construction monitoring and certification, dam and tailings storage facility design, mining engineered landform engineering, advanced numerical and seismic analyses, and expert witness services. Engagements are scoped per project with fees based on scope and complexity, delivered by a New Zealand-based team of geotechnical engineers, engineering geologists, and civil designers with international project experience across nine countries.

Product overview

Engineering Geology Ltd is a specialist geotechnical consultancy offering a unified suite of engineering services rather than a modular software product. The firm's core offerings span residential and land development services, commercial and infrastructure geotechnical support, dam engineering (including water storage and tailings dams), mining and engineered landform design, advanced geotechnical analysis, and expert witness services. The company uses industry-standard engineering software tools including Slope/W, Sigma/W, Seep/W, Quake/W, Shake, Settle3D, Geostudio, Wallap, LPile, DEEPSOIL, FLAC, and Plaxis for analytical work. Services are delivered by a team of geotechnical engineers, engineering geologists, and civil designers based in Auckland, New Zealand, with international project experience across Australia, Asia-Pacific, Africa, and Eastern Europe.

Differentiator

Problem solved

Functional benefit

Products and services

• Geotechnical Investigations and Reporting Site investigations, geotechnical reports, pre-purchase geotechnical site suitability inspections, and geotechnical feasibility studies for residential, commercial, and infrastructure projects. Delivered by EGL's team of geotechnical engineers and engineering geologists throughout Auckland and across New Zealand.
• Foundation and Retaining Wall Design Foundation design recommendations and retaining wall design services for residential and commercial developments, using Wallap and LPile for retaining wall and piled solution modelling. Supports clients from feasibility through to construction supervision.
• Slope Stability Assessment Slope stability assessments, stabilisation solutions, and cliff stability assessments for residential and commercial properties, applying Slope/W computer software for analytical work. Supports consent applications and risk mitigation for at-risk sites.
• Dam Engineering Services Design of irrigation and water supply embankment dams, tailings dams, and HDPE-lined ponds up to 40m height, plus dam safety reviews, seismic assessments, and comprehensive dam safety evaluations throughout New Zealand. Backed by EGL's membership in NZSOLD and ICOLD Technical Committee on Seismic Aspects of Dam Design.
• Earthworks Design Earthworks design and ground improvement design services for land development projects, paired with Settle3D 3D settlement modelling for commercial and infrastructure scale. Supports earthworks certification for consenting.
• Liquefaction Assessment Site-specific liquefaction assessment and ground improvement solutions, including earthquake design considerations and seismic hazard analysis applied to foundations, dams, and infrastructure projects.
• Mining and Tailings Storage Facility Design Design and review of engineered landforms for rock disposal and tailings storage facilities, including geotechnical investigations, tailings characterisation, deposition modelling, and dam breach studies. Serves small to large international mining corporations.
• Geological Studies Engineering geological assessment services including geological studies and terrain evaluation to inform site selection, feasibility, and detailed design across residential, commercial, and infrastructure projects.
• Construction Monitoring and Certification Geotechnical construction monitoring and certification services for earthworks and foundation construction, providing regulatory sign-off and quality assurance for residential, commercial, and infrastructure builds.
• Advanced Geotechnical Analysis Complex analyses including seismic hazard analysis, site response analysis, time history selection, dynamic FEM analyses (using Wallap, Fs-Consol, Geostudio, DEEPSOIL, FLAC, and Plaxis), and detailed ground settlement assessments for large or difficult projects.
• Expert Witness and Advisory Services Expert evidence, independent and peer reviews, forensic investigations, and expert opinion for resource consent hearings, arbitrations, and high court proceedings. Provided by EGL's senior engineers and engineering geologists.
• Commercial and Infrastructure Development Services Geotechnical support for large industrial warehouses, multi-storey commercial developments, retirement homes, and infrastructure projects including road, water pipelines, electrical transmission, and rail corridor alignments such as Auckland City Rail Link and Puhoi to Wellsford Motorway.

Quantifiable outcome

• 8,000+ different jobs completed since 1986
• +3 more outcomes

Named customers7 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

Feature8 records

Partnerships

Three partnerships are on record, tiered core.

• ACE New Zealand (Association of Consulting and Engineering)coreOthersProfessional membership organization for consulting and engineering firms in New Zealand. EGL is a member, providing industry recognition and networking opportunities within the New Zealand engineering consultancy sector.
• Engineering New Zealand (ENZ)coreOthersProfessional body for engineers in New Zealand. EGL staff hold memberships and chartered status through Engineering New Zealand, providing professional credentialing and industry standing.
• NZSOLD (New Zealand Society on Large Dams)coreStrategic or Co-development PartnerSociety for dam engineering professionals in New Zealand. EGL Director Trevor Matuschka serves as Chair of NZSOLD and is a member of ICOLD Technical Committee on Seismic Aspects of Dam Design, indicating deep technical collaboration and leadership in the dam engineering field.

Scale indicators5 records

Recent moves5 records

Expansion highlights6 records

Broad incumbents

• GHD: Global engineering, architecture and environmental consultancy with substantial presence in Australia and New Zealand. GHD competes with EGL on infrastructure, mining and water projects but offers a far broader multi-disciplinary portfolio.
• AECOM: Global infrastructure consulting firm with major NZ operations, competing for large transport, water and mining geotechnical mandates. AECOM has a substantially larger bench and global delivery capability than EGL.
• Jacobs: Global professional services firm with critical infrastructure, water and mining geotechnical offerings in Australasia. Jacobs competes with EGL for marquee infrastructure and tailings work but at a much larger scale and broader service portfolio.
• WSP: Global engineering consultancy with strong NZ presence (including the legacy Golder Associates practice) competing on transport, mining tailings and dam projects. WSP offers a broader advisory footprint than EGL and serves overlapping clients.
• Stantec: Global engineering and consulting firm active across water, infrastructure and mining in Australasia. Stantec overlaps with EGL on dams, geotechnical investigations and tailings work but competes primarily as a sub-consultant or JV partner on larger mandates.

Direct peers

• Beca Group: One of the largest NZ-headquartered engineering consultancies, providing geotechnical, civil and structural services. Beca competes with EGL on infrastructure projects such as CRL, motorways and water resource work, though at a much larger scale and with a broader portfolio.
• Riley Consultants: NZ-based specialist geotechnical consultancy of comparable size to EGL, focused on slope stability, foundation engineering, dams and forensic investigations. Riley is a near-twin peer for residential, commercial and mining dam work in New Zealand.
• Tonkin + Taylor: New Zealand-based environmental and engineering consultancy with a strong geotechnical practice. Tonkin + Taylor competes directly with EGL on dam engineering, slope stability, liquefaction assessment and land development investigations across NZ and the Pacific.
• Coffey Geotechnics (Tetra Tech): Specialist geotechnical and geoscience practice within Tetra Tech, providing site investigations, slope stability and ground engineering across Australia and the Pacific. Directly comparable service mix to EGL, with larger scale and geographic reach.

Emerging players

• Pells Consulting: Australia/NZ specialist dam and geotechnical consultancy of comparable scale to EGL with a niche focus on dam safety, foundation engineering and seismic analyses. Highly relevant peer for the dam engineering and tailings dam niche where EGL competes.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/engineering-geology-limited

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 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 Engineering Geology Ltd