Keller Group

What Keller Group does

Keller Group plc is a UK-headquartered, London Stock Exchange-listed (LON:KLR) geotechnical engineering contractor, founded in 1860 and currently employing 5,001–10,000 people across more than 40 countries on six continents. The company is described as the world's largest geotechnical specialist contractor, delivering solutions for ground engineering and foundation problems through four principal service categories: ground improvement (including vibro stone columns, dynamic compaction, soil mixing, rigid inclusions, and the proprietary Mixed Modulus Columns CMM®), grouting (jet, compaction, compensation, permeation, and rock/fissure grouting), piling (CFA, driven precast, bored, minipiles, restricted access, and the exclusive Pali Radice root pile system), and earth retention systems. The company also operates dedicated divisions in instrumentation and monitoring (GEO-Instruments, originally established as Getec in 2010) and retaining structures (Phi Group, acquired 2006).

Keller earns revenue primarily through project-based specialist contracting for main contractors, developers, and government entities, with pricing determined per-project based on technique, depth, volume, site conditions, and complexity. The business is geographically diversified, with North America generating approximately 60% of group revenue and the balance spread across Europe, the Middle East, and Asia-Pacific. End-markets span industrial and commercial developments, infrastructure (roads, rail, bridges, utilities), power and energy, institutional and public-sector construction, and residential projects. Channel relationships are anchored to a set of tier-1 main contractors including Kier, Bowmer & Kirkland, Merit Construction, and Barnwood, supplemented by joint ventures such as the Bauer-Keller Joint Venture on HS2.

Financial performance in FY2025 was characterised by 5.9% constant-currency revenue growth, a 6.5% increase in underlying operating profit to £212.6 million, £175.9 million of free cash flow, and the group's first net cash position in 25 years. FY2026 consensus revenue stood at £3.15 billion at the time of the July 2026 trading update, which indicated both revenue and operating profit would materially exceed consensus on the back of a record £1.9 billion order book. Market capitalisation was £1.37 billion as of March 2026. Distribution operates through regional divisions with locally embedded operational teams, and the company holds sector-leading credentials including six consecutive years of RoSPA Gold Medal Awards and Supply Chain Sustainability School Gold Level accreditation.

Name

Keller Group

Legal name

Keller Group plc

Website

https://keller.co.uk

Company type

Public

Founded year

1860

Operating status

Operating

Headcount range

5,001–10,000 employees

Short description

Keller Group plc is the world's largest geotechnical specialist contractor, providing ground improvement, piling, grouting, and earth retention services to infrastructure, industrial, commercial, energy, institutional, and residential clients across 40+ countries via project-based contracting with main contractors and government entities.

Ownership category

akta.pro rank

Product category

Geotechnical Contracting Services

NAICS

Poured Concrete Foundation and Structure Contractors (23811), Site Preparation Contractors (23891), Other Foundation, Structure, and Building Exterior Contractors (238190)

SIC

Construction - Special Trade Contractors (1700)

akta.pro primary industry

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

akta.pro secondary industry

Civil & Structural Engineering Consulting (BPAHAIAA)

Keywords

• Geotechnical contracting services
• Ground improvement solutions
• Piling and foundations
• Earth retention systems
• Geotechnical engineering

Headquarters

HQ city

London

HQ country

United Kingdom

HQ region

Europe

Offices6 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Geotechnical Contracting Services: Project-based contracting for specialist geotechnical services including ground improvement, piling, grouting, and earth retention. Revenue is generated through direct contracts with main contractors, developers, and government entities on construction projects of varying sizes.
2. Specialist Technique Services: Provision of specialized geotechnical techniques including Pali Radice, instrumentation and monitoring (GEO-Instruments), and retaining structures (Phi Group) as add-on services to core contracting.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels5 records

Core offering

Keller Group is the world's largest geotechnical specialist contractor, delivering ground engineering and foundation solutions for construction projects globally. The company offers four core service families — ground improvement, grouting, piling, and earth retention — executed through regional divisions and specialist sub-brands including Phi Group (retaining structures) and GEO-Instruments (instrumentation and monitoring). Revenue is generated through project-based contracts with main contractors, developers, and government entities across more than 40 countries.

Product overview

Keller Group is the world's largest geotechnical contractor, operating through regional divisions including Keller UK. The company offers a comprehensive portfolio of ground engineering solutions organized into distinct service categories: Ground Improvement Techniques (including Vibro stone columns, Dynamic compaction, Rigid inclusions, and soil mixing methods), Grouting Solutions (Jet grouting, Compaction grouting, Permeation grouting), Piling Services (CFA piles, Bored piles, Minipiles, Pali Radice), and Earth Retention Systems. The company operates specialized divisions including Phi Group (retaining solutions specialist) and GEO-Instruments (instrumentation and monitoring). Keller UK serves diverse markets including Commercial, Industrial, Infrastructure, Institutional/public, Power, and Residential sectors.

Differentiator

Problem solved

Functional benefit

Products and services

• Ground Improvement Techniques Specialist ground improvement services including Vibro stone columns, Dynamic compaction, Vibro concrete columns, Vibro compaction, Dry soil mixing, Mixed Modulus Columns CMM®, Wet soil mixing, Rigid inclusions, and Environmental stone columns. Used on construction projects to improve bearing capacity and settlement control.
• Grouting Solutions Specialist grouting services including Jet grouting, Compaction grouting, Compensation/fracture grouting, Permeation grouting, and Rock/fissure grouting. Used for ground stabilization, groundwater control, and compensation grouting on tunnelling projects.
• Piling Services
• Earth Retention Systems
• Phi Group Retaining Solutions Specialist retaining structures service designing, supplying and installing retaining structures including Permacrib retaining walls, soil panels, modular block reinforced earth systems, planted/grassed reinforced soil slopes, gabion baskets, and concrete panels. Acquired by Keller in 2006.
• GEO-Instruments Instrumentation and Monitoring Instrumentation and monitoring solutions for geo structural applications, delivering reliable data from professionally installed instrumentation presented in clear, user-friendly formats. Established 2010 as Getec, rebranded GEO-Instruments in 2019.
• Systems Geotechnique Restricted Access Piling Restricted access piling, ground anchors and soil nails service for sites with limited access. Acquired by Keller in 2007.

Quantifiable outcome

• Record order book of £1.9 billion in July 2026
• +3 more outcomes

Named customers7 records

Segments5 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Nine partnerships are on record, tiered major, core and minor.

• Bauer Keller Joint Venture (BKJV)majorStrategic or Co-development PartnerJoint venture with Bauer for HS2 infrastructure projects, where Keller apprentices work on high-speed rail foundation works.
• Kier GroupmajorChannel Partner/ Reseller/ DistributorMain contractor awarded CFA and SFA piling contract to Keller at Mogden Sewage Treatment Works (£66m refurbishment).
• Merit ConstructionmajorChannel Partner/ Reseller/ DistributorMain contractor for Solihull Hospital £25m operating theatre block project where Keller installed 371 CFA piles for foundations.
• Bowmer & KirklandmajorChannel Partner/ Reseller/ DistributorMain contractor for Indurent Park industrial development where Keller delivered vibro stone columns for 4 units.
• Barnwood LtdmajorChannel Partner/ Reseller/ DistributorClient for Kestrel Park logistics development in Avonmouth where Keller completed rigid inclusion ground improvements.
• StanteccoreImplementation/ SI/ Consulting PartnerEngineering consultancy specifying and validating ground improvement works at Indurent Park, including large-scale zone testing.
• Perega LtdcoreImplementation/ SI/ Consulting PartnerEngineer for Tooting Police Station redevelopment, collaborating on asymmetric pile layouts for heritage building foundation strengthening.
• Campbell ReithcoreImplementation/ SI/ Consulting PartnerEngineering consultancy that worked with Keller to develop tailored underpinning solution for Grade I listed Catholic Apostle Church.
• Midland Group Training Services (MGTS)minorOthersTraining provider partnership for mechatronics apprenticeships, with apprentices spending first year at MGTS facility in Coventry.

Scale indicators9 records

Recent moves8 records

Expansion highlights5 records

Others

• Stantec: Global engineering, architecture, and consulting firm that designs and specifies geotechnical works on projects where Keller is the contractor (e.g., Indurent Park). Serves as an enabling specification partner and a key indirect participant in Keller's project ecosystem.
• WSP Global: Global engineering consultancy providing geotechnical and infrastructure design services. Like Stantec, WSP is primarily an indirect participant rather than a direct competitor, but competes for design scope and shapes Keller's downstream tender opportunities.

Regional players

• Strabag: Austrian-headquartered European construction group with significant civil and infrastructure operations, including foundations and ground engineering components. Regional peer focused on Central European infrastructure with limited overlap with Keller's North American-heavy mix.

Broad incumbents

• Skanska: Swedish-headquartered global construction and project development group. While predominantly a general contractor and developer, Skanska's civil infrastructure segment overlaps with Keller's end markets and customer base of developers and government entities.
• Balfour Beatty: Major UK-listed global infrastructure group with significant construction services and a deep foundation heritage (formerly Hayward Baker). Operates broadly across construction with overlapping capabilities through its infrastructure investments arm, competing for the same main-contractor tenders.

Direct peers

• Trevi Group: Italian specialty foundation contractor offering piling, ground improvement, and soil consolidation for civil and infrastructure projects. Trevi competes directly with Keller on large infrastructure projects across Europe, the Americas, and the Middle East.
• Soletanche Bachy: Subsidiary of Vinci Construction, Soletanche Bachy is one of the world's leading geotechnical contractors offering foundations, ground improvement, and underground works. It directly competes with Keller on major infrastructure and building projects globally, with very similar technique portfolios.
• Menard (Vinci): A Vinci Construction subsidiary and major geotechnical contractor specializing in ground improvement and soil reinforcement techniques (controlled modulus columns, stone columns). Directly comparable technique portfolio and customer base to Keller's ground improvement segment.
• Bauer Group: German-based Bauer Spezialtiefbau is a direct geotechnical contractor competitor, offering piling, ground improvement, and anchoring. Already a Keller partner via the Bauer Keller Joint Venture on HS2, Bauer is among the closest direct comparables in the specialty foundations market.

Emerging players

• Fugro: Dutch-listed geoscience and offshore site characterization specialist providing geotechnical investigation, survey, and monitoring services. Adjacent rather than directly competing in contracting, but works alongside Keller on project design and as a service provider in the same market ecosystem.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks4 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/c/KellerGroup
• Facebookfacebook.com/Keller-UK-955973094518916
• LinkedInlinkedin.com/company/keller
• Instagraminstagram.com/keller_uk
• Xx.com/kelleruk

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles15 records

Subsidiaries2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A13 records

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Keller Group