What RDG Engineering does

RDG Engineering (TW) Ltd is a UK-based specialist engineering consultancy founded in 2002 that provides temporary works design, scaffold engineering, and structural design solutions for construction and infrastructure projects. The firm serves main contractors, clients, and engineering firms across sectors including construction, rail, heritage, highways and infrastructure, building remediation, nuclear, offshore, and energy/utilities. Its core services encompass scaffold design and engineering (complex scaffolds, edge protection, suspended access, temporary roofs, encapsulation), temporary and enabling works (propping, shoring, falsework, crane bases, pile mats), structural assessments and inspections, CAT 3 independent design checking, and expert witness services.

The firm's technical differentiation rests on a combination of practical on-site scaffolding experience and theoretical engineering expertise held by its engineers, supported by 3D analysis modelling of scaffolding and temporary roof structures accounting for incremental build processes. Notable proprietary approaches include a fully-braced 10-sided decagon scaffold exoskeleton for heritage structures, bespoke steel bracket systems that eliminate traditional kentledge, and track-mounted mobile scaffold systems with GRP membrane protection for live-railway work. The firm is pre-qualified across major UK infrastructure certifications including RISQS (rail), NASC Design Member, Construction Line Gold, and BSI ISO 9001, enabling tender access on rail and public-sector work.

RDG operates a professional services revenue model through direct project engagement with enterprise clients, with pricing not publicly disclosed but project-specific and quote-based. The go-to-market is sales-led enterprise field sales supported by a dedicated Business Development Manager, with marketing driven by an extensive case-study portfolio and industry award recognition. The company maintains four UK offices (London HQ, Deeside, Glasgow, Aberdeen) and works across the UK and internationally on landmark projects including HMS Victory, the British Museum, Battersea Power Station, London Bridge Station, and the Forth Rail Bridge. Client testimonials emphasize long engagement cycles (4-5 years), collaborative service, and competitive rates. The firm is privately held with no external investors identified, led by Managing Director Ray Gold, Technical Director David Milward, Scaffolding Director Dale Hopper, and Operations Director David Crabtree.

Name

RDG Engineering

Legal name

RDG Engineering (TW) Ltd

Website

https://rdgengineering.co.uk

Company type

Private

Founded year

2002

Operating status

Operating

Headcount range

11–50 employees

Short description

RDG Engineering is a UK specialist engineering consultancy, founded 2002, providing temporary works design, scaffold engineering, and structural design solutions to main contractors across construction, rail, heritage, and infrastructure sectors.

Ownership category

akta.pro rank

Product category

Civil Engineering Consultancy

NAICS

Engineering Services (541330), Architectural, Engineering, and Related Services (5413)

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Civil & Structural Engineering Consulting (BPAHAIAA)

akta.pro secondary industries

Site Access & Temporary Roads / Working Platforms (IMAFAKAO), Specialty Access & Scaffolding Rental/Leasing (TLABAFAL)

Keywords

• Temporary works design
• Scaffold engineering
• Civil engineering consultancy
• Structural design services
• Construction engineering solutions

Headquarters

HQ city

London

HQ country

United Kingdom

HQ region

Europe

Offices4 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering Design Consultancy Services: RDG Engineering generates revenue through providing specialist engineering design consultancy services for temporary works, scaffold engineering, and structural design solutions on construction and infrastructure projects. Services are delivered by certified engineers across diverse sectors including rail, heritage, construction, and highways infrastructure. The company serves as a trusted advisor to main contractors and clients, with projects ranging from complex heritage restoration to major infrastructure developments.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels6 records

Core offering

RDG Engineering is a civil engineering consultancy that designs scaffold structures and temporary works for construction and infrastructure projects across the UK and internationally. The firm provides specialist services including complex scaffold design, edge protection, façade retention, temporary roofs, propping, shoring, structural assessments, and Category 3 independent design checking. It serves main contractors, clients, and engineering firms on projects spanning rail, heritage, highways, construction, nuclear, and other infrastructure sectors.

Product overview

RDG Engineering is a service-based engineering consultancy offering a unified portfolio of specialist services rather than a software platform. The core offerings consist of Scaffold Design and Engineering (covering complex scaffolds, edge protection, façade retention, independent scaffolds, lifting scaffolds, mobile scaffolds, suspended access decks, and temporary roofs) and Temporary and Enabling Works (including crane bases, propping, shoring, pile mats, hoardings, and falsework). These are supported by Structural Assessments, Structural Inspections and Investigations, Expert Witness services, and CAT 3 Independent Design Checking. The company serves diverse industry sectors including construction, rail, heritage, highways, and infrastructure.

Differentiator

Problem solved

Functional benefit

Products and services

• Scaffold Design and Engineering Comprehensive scaffold engineering services including complex scaffold solutions, edge protection, façade retention, independent scaffolds, lifting scaffolds, mobile scaffolds, public access and event stands, suspended access and protection decks, and temporary roofs and encapsulations for construction projects.
• Temporary and Enabling Works Specialist temporary works solutions including cabin bases, crane bases, façade retention, falsework and formwork, haul roads, hoardings, hoist foundations, pile mats, propping, shoring, temporary stability, and underpinning for construction sites.
• Structural Assessments Engineering assessments for concrete, steel, timber, and masonry materials to evaluate loads from temporary works on existing structures and determine if strengthening is required.
• Structural Inspections and Investigations Comprehensive inspections and investigations to assess structural conditions, identify deterioration risks, signs of wear, and hidden weaknesses through tailored investigative techniques.
• Expert Witness Expert witness services providing clear, unbiased opinions to support case resolution in construction or engineering disputes, with specialized experience across rail, infrastructure, scaffolding, demolition, and heritage sectors.
• CAT 3 Independent Design Checking Specialised Category 3 independent design checking services providing third-party review and quality assurance to verify designs meet all standards, specifications, and regulatory requirements.

Quantifiable outcome

• Scaffold exoskeleton solution reduced carbon emissions by approximately 90% compared to structural steel frame alternative
• +2 more outcomes

Named customers3 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

Feature5 records

Partnerships

Ten partnerships are on record, tiered core and supporting.

• BSIcoreOthersBSI ISO 9001 Quality Management System Certified. The company maintains ISO 9001 certification for quality management systems.
• Construction LinecoreOthersConstruction Line Gold Member. Pre-qualification and supply chain management certification for construction companies.
• Builders ProfilecoreOthersBuilders Profile member. Environmental management and sustainability reporting service for the construction industry.
• Scaffolding AssociationcoreOthersScaffolding Association Associate Member. Industry trade association for scaffolding contractors and manufacturers.
• National Access and Scaffolding Confederation (NASC)coreOthersNASC Design Member. Trade body representing access and scaffolding contractors with design membership category.
• Temporary Works ForumcoreOthersTemporary Works Forum member. Industry forum promoting best practice in temporary works design and construction.
• Association of Northern Scaffolding Contractors (ANSC)supportingOthersANSC member. Regional trade association for scaffolding contractors in Northern England.
• National Federation of Demolition Contractors (NFDC)supportingOthersNFDC ISP Member. Trade federation representing demolition contractors in the UK.
• RISQScoreOthersRISQS Audited Certification. Supplier pre-qualification for the rail industry.
• Work Pipeline Visibility ChartersupportingOthersWork Pipeline Visibility Charter signatory. Initiative promoting transparency in construction supply chain workload visibility.

Scale indicators3 records

Recent moves5 records

Expansion highlights5 records

Broad incumbents

• Arup: Global multi-disciplinary engineering consultancy with a temporary works and structural engineering practice serving rail, heritage, and infrastructure projects. Comparable to RDG because both provide specialist engineering consultancy on complex UK construction and infrastructure schemes, though Arup operates at vastly greater scale across many disciplines.
• PERI: Global formwork and scaffolding manufacturer and engineering provider with significant UK presence. Comparable to RDG because PERI delivers engineered scaffolding and temporary works solutions to UK contractors, overlapping with RDG's core design remit.
• BrandSafway: Large global access and scaffolding solutions provider combining equipment, engineering, and contracting services. Comparable to RDG because it competes for scaffold design and access engineering work on the same complex UK construction and infrastructure projects.
• WSP: Major international engineering consultancy with UK rail, highways, and property practices. Comparable to RDG because it offers structural and temporary works engineering on large UK infrastructure projects where RDG also competes or acts as sub-consultant.
• AtkinsRéalis: International engineering consultancy (formerly Atkins) with strong UK rail and infrastructure design practices. Comparable to RDG because both supply engineering design for major UK rail and infrastructure projects and share pre-qualification regimes such as RISQS.
• Buro Happold: International engineering consultancy with structural and temporary works expertise across heritage, rail, and buildings. Comparable to RDG because both deliver specialist structural and temporary works engineering on complex heritage and infrastructure schemes.
• Mott MacDonald: Global engineering consultancy with significant UK rail, highways, and structural engineering practices. Comparable to RDG because both deliver engineering design services for UK rail and infrastructure projects including temporary works.

Direct peers

• Lyndon SGB: UK scaffolding contractor with in-house design and temporary works engineering capabilities serving main contractors on construction and infrastructure projects. Comparable to RDG because Lyndon SGB both designs and executes scaffold and temporary works schemes for the same UK contractor customer base.
• Mabey Hire: UK provider of temporary works equipment, propping, and engineering services including temporary works design consultancy. Comparable to RDG because Mabey Hire supplies design and engineering for propping, shoring, and access solutions that overlap directly with RDG's temporary works portfolio.
• Apex Scaffold Design: UK specialist scaffold design consultancy offering temporary works and scaffold engineering services to main contractors. Comparable to RDG because both are dedicated niche consultancies focused exclusively on scaffold and temporary works design serving similar UK contractor clients.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/RDGEng?locale=en_GB
• LinkedInlinkedin.com/company/rdg-engineering
• Instagraminstagram.com/rdgengineering_tw?igsh=NnNkbnVzazdqZzRw
• Xx.com/RDGEngineering

Compliance9 records

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 RDG Engineering