Keltbray

Name

Keltbray

Legal name

Keltbray Group Limited

Website

https://keltbray.com

Company type

Private

Founded year

1976

Operating status

Operating

Headcount range

1,001–5,000 employees

Ownership category

akta.pro rank

Product category

Construction Engineering Services

NAICS

Heavy and Civil Engineering Construction (237), Power and Communication Line and Related Structures Construction (237130), Architectural, Engineering, and Related Services (5413), Water and Sewer Line and Related Structures Construction (237110)

SIC

Heavy Construction Other Than Bldg Const - Contractors (1600), Water, Sewer, Pipeline, Comm & Power Line Construction (1623), General Bldg Contractors - Nonresidential Bldgs (1540)

akta.pro primary industry

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

akta.pro secondary industries

Rock Excavation, Blasting & Quarry-Assist Works (IMAFAKAE), Tunneling & Underground Geotechnics (Ground Treatment, Support, NATM/SEM Interfaces) (IMAFAOAJ)

Keywords

• Construction engineering services
• Demolition and remediation
• Piling and foundations
• Rail infrastructure services
• Civil engineering contracting

Headquarters

HQ city

Esher

HQ country

United Kingdom

HQ region

Europe

Offices6 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Construction and Engineering Services: Project-based revenue from delivering specialist engineering and construction services including demolition, piling, concrete works, asbestos removal, remediation, temporary works, and rail infrastructure. Revenue generated through fixed-price contracts and collaborative arrangements with developers, main contractors, and government agencies.

Go-to-market motion1 record

Distribution channels4 records

Marketing channels6 records

Core offering

Keltbray is a UK specialist construction engineering solutions provider that self-delivers demolition, piling and ground engineering, structural concrete works, asbestos removal, brownfield remediation, temporary works design, rail infrastructure, energy distribution and transmission, and decommissioning services. Through its in-house design consultancy (Wentworth House Partnership) and proprietary low-carbon foundation technology (HIPER Pile/Hiperpile), it serves developers, main contractors and government agencies on complex urban and highly regulated projects.

Product overview

Keltbray is a UK-based specialist construction engineering solutions provider operating across built environment and major civil engineering markets. The company offers an integrated self-delivery model combining multiple specialist services including demolition, piling, structures, asbestos removal, remediation, rail services, and energy infrastructure. Key sub-brands include Wentworth House Partnership (design engineering consultancy), KML Occupational Health, Konstructive Recruitment, and Hiperpile (low-carbon foundation technology). The portfolio also includes specialised divisions for lifting services, decommissioning, environmental services, and concrete plant operations.

Differentiator

Problem solved

Functional benefit

Brands

• Wentworth House Partnership: Design engineering consultancy providing advice, innovative design and checking services for major civil engineering and infrastructure projects
• Hiperpile
• Hiperenergy
• KML Occupational Health
• Konstructive Recruitment
• Keltbray Built Environment
• Promote Health, Prevent Harm

Products and services

• Demolition & Remodelling
• Piling & Ground Engineering
• Structures
• Asbestos Removal
• Environmental & Remediation
• Rail Services
• Energy Services
• Decommissioning
• Lifting Services
• Concrete Plant & Plant Hire
• Haulage
• Hiperpile Low-Carbon Foundation Technology

Quantifiable outcome

• Reduced concrete volume by 41% using HIPER Pile technology compared with conventional solid pile scheme
• +7 more outcomes

Named customers10 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability2 records

Feature5 records

Partnerships

Six partnerships are on record, tiered strategic, core and minor.

• NSCC InternationalstrategicStrategic or Co-development Partner · 29 April 2026Hiperpile Limited (Keltbray subsidiary) partnership with UAE-based NSCC International for marketing, design and installation of Hiperpile technologies across the GCC region. The partnership brings Hiperpile's low-carbon foundation technology with NSCC's regional expertise, operational capability and delivery experience. NSCC is at the forefront of foundation and ground engineering in GCC since late 1960s, with portfolio including NEOM's THE LINE, Zayed International Airport, and Qatar National Museum.
• MultiversecoreStrategic or Co-development PartnerKeltbray launched an AI and data training academy in partnership with upskilling provider Multiverse. Initial cohort of 25 staff enrolled on courses covering generative AI productivity and data analysis. Programmes split between AI Powered Productivity and Data & Insights for Business Decisions, designed to build digital skills for work in regulated infrastructure and engineering markets. Expected to reduce time spent on repetitive manual work, improve internal analysis and reporting.
• Converge (Helix)coreTechnology or IntegrationKeltbray adopted Converge's system at Western Yards project to accurately measure concrete strength 10-15 hours after pouring, enabling timely initial stressing of PT slabs and maintaining tight project schedule. Technology provides improved site safety, reduced labour downtime, and cost savings by eliminating laboratory test cube report wait times.
• Saint-GobaincoreTechnology or IntegrationClosed-loop glass recycling partnership with Saint-Gobain at 100 New Bridge Street and 1 Victoria Street projects. Glass from demolition is recycled and transformed into new high-quality glass products, enabling continuous recycling without quality degradation. Over 30 tonnes of glass recycled at 100 New Bridge Street, over 110 tonnes at 1 Victoria Street.
• GlobechainminorGTM or Marketing PartnerOnline reuse marketplace partnership to re-home materials from 1 Victoria Street project. Identifies network of end users and helps track end impact from social and carbon perspective. Over 50,000 items donated including carpet tiles, lighting, furniture, hand dryers, kitchen cabinets, and doors. Benefits included Wipers Empowerment for Youth, The Margate School, and other charities.
• Costain and Skanska Joint Venture (CSjv)minorChannel Partner/ Reseller/ DistributorKeltbray worked as specialist subcontractor for HS2's enabling works contractor, a Costain and Skanska joint venture. Undertook structural demolition of Vezey-Strong Wing and Link Bridge, and DB Cargo Sheds for new HS2 approach tunnels.

Scale indicators10 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Costain Group: UK heavy-civil and infrastructure contractor active in rail enabling works, highways and energy — Keltbray is a specialist subcontractor to Costain/Skanska JV on HS2 enabling works, putting the two firms in collaborative competition on UK infrastructure programmes.
• Laing O'Rourke: UK-headquartered specialist engineering and construction group delivering piling, structures, rail and major infrastructure — directly comparable to Keltbray's integrated self-delivery model. Tony Douglas, Keltbray's Non-Executive Chairman, was previously COO of Laing O'Rourke, underscoring the operational overlap.
• Erith Group: London-based specialist contractor focused on demolition, asbestos removal, remediation and groundworks — a close functional peer to Keltbray's Built Environment division with overlapping contractor clients including major City of London developers.
• VolkerWessels UK (Volker Fitzpatrick): UK rail civils and structural specialist operating on rail electrification, station builds and complex piling. Directly comparable to Keltbray Rail and Keltbray Structures activities on Network Rail and HS2-aligned work.
• John F Hunt: UK specialist demolition, piling, asbestos removal and remediation contractor — Keltbray's Pre-Construction Director Martin Hinde progressed to Director at John F Hunt before joining Keltbray. Closest pure-play demographic in demolition and enabling works.
• Mace Group: UK construction and consultancy group with major rail and commercial-development franchises. Joint-venture partner with Keltbray on HS2 Curzon Street, exactly mirroring Keltbray's specialisms in demolition, piling and structures for complex central-London schemes.

Broad incumbents

• BAM Construct UK: Major UK contractor with capabilities across commercial building, civil engineering and facilities management. Overlaps with Keltbray's commercial-property demolition, enabling works and concrete-structures delivery for developer clients.
• Balfour Beatty: UK-listed infrastructure group covering rail, highways, energy transmission and major construction. Overlaps directly with Keltbray's rail, energy distribution & transmission, and piling activities, but at significantly greater scale and with public-market capital access.
• Skanska UK: Global contractor with substantial UK rail and civils operations; JV partner with Costain on HS2 enabling works where Keltbray operates as specialist subcontractor. Comparable on infrastructure programmes though far larger and more diversified geographically.
• Sir Robert McAlpine: Privately held UK contractor with strong heritage in piling, ground engineering and complex city-centre builds — competitor to Keltbray for major developer and infrastructure clients, including on rail and energy infrastructure adjacencies.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/KeltbrayGroup
• YouTubeyoutube.com/channel/UCLzsNMMhRyODGYEUsKEG-VQ
• Facebookfacebook.com/keltbraygroup
• LinkedInlinkedin.com/company/1161247
• Instagraminstagram.com/keltbraygroup

Compliance14 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles16 records

Subsidiaries18 records

Funding overview

Funding rounds

Investors

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

M&A1 record

Investments

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

Frequently asked questions about Keltbray