What Geotechnical & Environmental Associates does

Geotechnical & Environmental Associates (GEA) is a privately held UK geotechnical and geoenvironmental consultancy headquartered in Ware, Hertfordshire, with satellite offices in Kingston on Soar, Nottinghamshire and Manchester. The firm, founded on 3 January 2003 by Steve Branch, operates exclusively as an independent consultancy — it owns no drilling rigs or laboratories — and positions that independence as a core differentiator against integrated contractor-consultants. Since 2024 GEA has operated as a subsidiary of STAT Holdings alongside sister companies Ion and Ubu.

GEA's core offering comprises ground investigation, geotechnical consultancy, and contaminated land assessment, supported by specialist services such as basement impact assessment, ground movement analysis, piling consultancy, and discrete-interval / membrane-interface-probe groundwater sampling. Delivery leans on a proprietary database of over 10,000 previous UK ground investigations accumulated over two decades, which staff apply as local geological context on new projects; senior engineering continuity from desk study through construction supervision is the firm's stated service model. Disciplines include cable percussion and rotary boreholes, trial pitting, in-situ testing (SPT, CPT), groundwater and ground-gas/vapour monitoring, contaminated-land risk assessment, remediation design with regulatory liaison (Environment Agency), and interpretive reporting.

Revenue is generated entirely on a professional-services basis, billed per engagement against scope, site complexity, and reporting requirements, with no public rate card. The £4m+ revenue base disclosed at the 20th anniversary (January 2023) was spread across property developers, structural and civil engineering firms (notably Price & Myers as recurring sub-consultant), architects, planning consultants, local authorities, universities (Royal Veterinary College, LSE), and heritage bodies (Natural History Museum, Lincoln's Inn, Leicester Cathedral). The customer base spans residential, commercial, education, heritage/cultural, and public-sector segments; new business is generated through direct tendering, structural-engineer referrals, and repeat engagement on long-running programmes. Headcount sits around 22–27 technical and administrative staff across three offices.

Name

Geotechnical & Environmental Associates

Legal name

Geotechnical & Environmental Associates Limited

Website

https://gea-ltd.co.uk

Company type

Private

Founded year

2003

Operating status

Operating

Headcount range

11–50 employees

Short description

GEA is an independent UK geotechnical and geoenvironmental consultancy, founded 2003, providing ground investigation, contaminated land assessment, and specialist services (basement impact assessments, ground movement analysis, piling consultancy) to property developers, structural engineers, universities, heritage bodies, and public-sector clients across England and Scotland from offices in Hertfordshire, Nottinghamshire, and Manchester.

Ownership category

akta.pro rank

Product category

Geotechnical Engineering Services

NAICS

Geophysical Surveying and Mapping Services (54136), Geophysical Surveying and Mapping Services (541360), Environmental Consulting Services (54162), Environmental Consulting Services (541620)

SIC

Services-Commercial Physical & Biological Research (8731)

akta.pro primary industry

Geotechnical & Subsurface Engineering Consulting (BPAHAIAB)

akta.pro secondary industry

EIA/ESIA Documentation & Technical Studies (Air/Water/Noise/Traffic) (EUAHAAAC)

Keywords

• Geotechnical consultancy
• Geoenvironmental consulting
• Ground investigation services
• Contaminated land assessment
• Site investigation services

Headquarters

HQ city

Ware

HQ country

United Kingdom

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Geotechnical and Ground Investigation Consultancy: Professional consultancy fees for ground investigation, interpretive reporting, foundation design advice, and geotechnical analysis. Revenue is project-based, billed per engagement, with long-term client relationships driving recurring work.
2. Geoenvironmental and Contaminated Land Assessment: Fees for contaminated land desk studies, risk assessments, remediation strategy design, validation reporting, and regulatory liaison with bodies such as the Environment Agency.
3. Specialist Monitoring and Testing Services: Ongoing site monitoring programmes including groundwater sampling, gas monitoring, and discrete interval sampling, often forming multi-phase engagements over project lifecycles.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels10 records

Core offering

GEA is a UK geotechnical and geoenvironmental consultancy providing site investigation, ground engineering, and contaminated land services. Core offerings include Desk Studies, Ground Investigations, Geotechnical Consultancy, Contaminated Land Assessments, Basement Impact Assessments, Ground Movement Analysis, Piling Consultancy, Discrete Interval Sampling, and Remediation Method Statements for construction, infrastructure, and development clients.

Product overview

Geotechnical & Environmental Associates (GEA) is an independent geotechnical and geoenvironmental consultancy providing ground investigation and specialist advisory services to the property and construction industries. The company operates as a services-based consultancy rather than a software product company, offering a unified suite of interrelated services that span the full project lifecycle from initial desk studies and site characterisation through to remediation design and verification. Core services include ground investigation, geotechnical consultancy, and contaminated land assessment, supported by specialist offerings such as basement impact assessments, ground movement analyses, and piling consultancy. All services are delivered by qualified geotechnical engineers and chartered professionals.

Differentiator

Problem solved

Functional benefit

Products and services

• Desk Study Preliminary assessment of available geological, environmental, and historical site information to identify potential ground-related risks before further investigation.
• Ground Investigation Site-based intrusive investigation, sampling, and in-situ testing to characterise subsurface conditions for construction and development projects.
• Geotechnical Consultancy Interpretation of ground investigation data and engineering advice on foundations, earthworks, slope stability, and ground-related design for building and infrastructure projects.
• Contaminated Land Assessment Assessment of soil and groundwater contamination, including Phase 1/Phase 2 investigations and risk evaluation, for brownfield and development sites.
• Basement Impact Assessment Assessment of the potential impact of proposed basement construction on surrounding structures, ground, and groundwater.
• Ground Movement Analysis Analysis of predicted and actual ground and structural movement associated with construction, excavation, or tunnelling works.
• Piling Consultancy Specialist advice on piling design, specification, and supervision for foundation projects.
• Discrete Interval Sampling Targeted groundwater or soil sampling at specific depth intervals to support contamination and hydrogeological assessment.
• Remediation Method Statement Detailed method statement for the remediation of contaminated land, including techniques, validation, and regulatory compliance.

Quantifiable outcome

• Four GEA-supported projects shortlisted for 2026 RIBA Regional Awards, demonstrating recognised project delivery excellence.
• +3 more outcomes

Named customers11 records

Segments5 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Six partnerships are on record, tiered core and minor.

• Price & MyerscoreStrategic or Co-development PartnerStructural engineering firm with whom GEA has a longstanding collaborative relationship on numerous UK projects. GEA provides geotechnical and ground investigation services as part of project teams assembled by Price & Myers for clients including universities, heritage bodies, and property developers. Projects include Bradford Live Regeneration, Leicester Cathedral, Salford Cathedral, LSE Centre Building, and four schemes shortlisted for the 2026 RIBA Regional Awards.
• Rake EnvironmentalcoreStrategic or Co-development PartnerSpecialist remediation contractor with whom GEA collaborates on contaminated land remediation projects. GEA designs the remediation strategy and Rake Environmental executes the physical remediation works, including soil and groundwater clean-up. Collaboration has included hydrocarbon contamination projects and groundwater remediation with on-site treatment, working under Environment Agency oversight.
• RegenesiscoreTechnology or IntegrationRemediation technology provider whose products (including ORC Advanced, RegenOx, and 3DME injectable electron donor) GEA specifies and incorporates into remediation strategies for chlorinated solvent and hydrocarbon contaminated sites. GEA interprets monitoring data to assist Regenesis in designing full-scale remediation schemes.
• University of PortsmouthcoreStrategic or Co-development PartnerLong-standing relationship with the University of Portsmouth's Engineering Geology and Geotechnics programme. GEA hosts placement students through the university's bursary scheme, provides careers fair support, and benefits from a pipeline of graduate talent. Managing Director Steve Branch is a University of Portsmouth alumnus.
• Cementation SkanskaminorStrategic or Co-development PartnerReciprocal arrangement where Cementation Skanska's graduate engineers are seconded to GEA for four-month placements to gain ground investigation experience, while GEA engineers have previously gained experience in piling through the arrangement. Martin Cooper, GEA Technical Director, worked for Cementation Skanska (then Cementation Piling) earlier in his career.
• STAT HoldingscoreOthersParent company of GEA. STAT Holdings brings together multiple companies in the geotechnical and environmental sector. GEA participates in group-wide gatherings and collaboration with sister companies Ion and Ubu. GEA Managing Director Steve Branch and Finance & Office Manager June Lewis attend STAT Holdings director meetings.

Scale indicators6 records

Recent moves7 records

Expansion highlights5 records

Broad incumbents

• RSK Group: Largest UK environmental and engineering consultancy, with extensive geotechnical capability and an active acquisition strategy in the sector. Competes for the same contaminated-land and ground-investigation mandates but at far greater scale and breadth than GEA.
• Arcadis UK: Global design and consultancy firm with a UK geotechnical and environmental practice. Provides overlapping ground engineering and contaminated land services but typically as part of large multi-disciplinary project teams.
• WSP UK: Global professional services firm with significant UK geotechnical, geoenvironmental and infrastructure capabilities. Competes for major UK property, transport and regeneration schemes where GEA also bids as a specialist sub-consultant.
• SOCOTEC UK: Major UK testing, inspection and compliance group with a significant geotechnical and environmental consulting division. Overlaps with GEA's ground investigation and contaminated land services but as part of a much wider service portfolio.

Direct peers

• Soil Mechanics: UK geotechnical and environmental site investigation contractor/consultancy. Comparable in core service offering (ground investigation, geotechnical and geoenvironmental reporting) and B2B go-to-market.
• Concept Engineering Consultants: Boutique UK civil and geotechnical engineering consultancy serving property developers and architects. Overlaps with GEA's geotechnical consultancy and ground investigation practice for residential and commercial schemes.
• Structural Soils: UK geotechnical and geoenvironmental consultancy offering ground investigation and contaminated land services. Operates in the same B2B consultancy space serving developers, engineers and contractors with overlapping service lines to GEA.
• Geotechnical Engineering Ltd: Long-established UK geotechnical consultancy providing site investigation, geotechnical design and contaminated land assessment. Direct comparable on service range and UK developer/engineer client base.
• Card Geotechnics (CGL): Specialist UK geotechnical consultancy focused on ground engineering, basement impact assessments and contaminated land. Direct competitor for the same London basement and developer-led projects that GEA targets.
• Ian Farmer Associates: Mid-sized UK geotechnical consultancy providing ground investigation and geotechnical design to construction clients. Closely comparable in service mix, project type and target market to GEA.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/GEA_Ltd
• YouTubeyoutube.com/channel/UCYtBJgGldyWxJ0g9wShqpyQ
• LinkedInlinkedin.com/company/geotechnical-and-environmental-associates-limited
• Instagraminstagram.com/GEA_Ltd

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 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 Geotechnical & Environmental Associates