What TRL does

TRL is a UK-headquartered, privately owned transport and mobility research organisation founded in 1933, operating from Wokingham and a second engineering/R&D site at the TRL Living Lab in Woolwich, London. The company serves national and local government transport authorities, road agencies, automotive OEMs, and international development clients across more than 100 countries, delivering research, consultancy, technical assurance, software, and physical testing services. Its portfolio spans transport safety (including authorship of BS PAS 1881 for automated vehicle trial safety cases and operation as the UK iRAP Centre of Excellence), infrastructure asset management (iROADS software, Road Marking Collector, HMAT), intelligent transport systems (SCOOT8 AI traffic control), safety and crash testing, climate and sustainability advisory, human factors, and expert witness investigations. Underlying technology includes proprietary computer-vision road feature coding, AI-driven optical sensors, ML-based glare analysis, and a real-world 24km connected urban testbed with 5G coverage and AV test vehicles.

The business model combines bespoke professional services contracts (research, consultancy, technical assurance) negotiated directly with government and commercial clients, recurring software licensing through affiliate TRL Software Limited (traffic software in 400+ cities globally), one-off safety and crash testing engagements, and forensic expert witness work. Go-to-market is sales-led, driven by reputation, standards authorship, and direct engagement with public-sector and industry decision-makers, supplemented by thought leadership via a 4,000+ item publications library, industry conferences, and a research trial participant community. The group comprises TRL Limited as the parent with wholly-owned subsidiaries TRL Software Limited and SMLL Limited, is led by CEO Paul Campion with new CCO Dave Sharratt appointed in April 2026 to drive global commercial strategy.

Name

TRL

Legal name

TRL Limited

Website

https://trl.co.uk

Company type

Private

Founded year

1933

Operating status

Operating

Headcount range

251–500 employees

Short description

TRL is a UK-based, privately owned transport research organisation serving government and industry across 100+ countries with consultancy, technical assurance, software (iROADS, SCOOT8), safety and crash testing, and a real-world connected Living Lab in London.

Ownership category

akta.pro rank

Product category

Transport Research and Consultancy

NAICS

Testing Laboratories and Services (541380), Support Activities for Transportation (488)

SIC

Services-Testing Laboratories (8734), Services-Commercial Physical & Biological Research (8731)

akta.pro primary industry

Regulatory Compliance Audit Support & Documentation (Emissions/Safety/Environmental) (TLAKANAO)

akta.pro secondary industries

Vehicle Inspection, Testing & Compliance (Safety, Emissions, Certification) (THAIANAC), Multi-Point Inspections & Safety Checks (DVIR/Annual/Periodic) (TLAKAGAB), Onboard Diagnostics (OBD) Readiness & Drive-Cycle Verification (TLAKANAH)

Keywords

• Transport research consultancy
• Road safety engineering
• Infrastructure asset management
• Autonomous vehicle testing
• Intelligent transport systems

Headquarters

HQ city

Wokingham

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. Research and Consultancy Contracts: TRL generates the majority of its revenue through government and commercial research contracts, consultancy engagements, and technical assurance projects. Projects are commissioned by transport authorities, government departments, and industry clients on a per-engagement basis.
2. Software Licenses and Products: TRL develops and sells proprietary software products including iROADS asset management software and road safety tools. Revenue is generated through software licenses, subscriptions, and product sales.
3. Testing and Certification Services: TRL provides safety and crash testing services for automotive products, regulatory compliance testing, and collision investigation services. Testing is conducted for OEMs, governance organisations, and regulators.
4. Expert Witness and Investigations: TRL provides expert witness services and accident investigations, generating revenue through forensic engineering analysis and legal proceedings support.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels7 records

Core offering

TRL delivers applied transport research, independent safety assurance and consultancy to government transport authorities and the automotive industry, combined with proprietary software (iROADS, SCOOT8 AI, Road Marking Collector, HMAT), safety and crash testing services, expert witness investigations, and a real-world connected urban testbed (TRL Living Lab). It authors UK standards including BS PAS 1881 for automated vehicle trial safety cases and is the iRAP UK Centre of Excellence, supplying iRAP Star Rating assessments across 100+ countries. The organisation serves as the UK Department for Transport's appointed PAS 2161 Approvals Auditor for road condition monitoring through 2030.

Product overview

TRL is a privately owned UK-based global centre for transport and mobility innovation offering a broad portfolio of research, consultancy, and software products. The offering combines independent research expertise with a suite of proprietary software tools and real-world testing facilities. Core software products include iROADS (road/rail asset management), the Road Marking Collector, Highways Maintenance Assessment Tool (HMAT), and SCOOT8 AI (intelligent traffic signal control). TRL operates the TRL Living Lab in London — a real-world connected testbed for autonomous and smart city technologies — and provides specialist consulting services spanning transport safety, infrastructure asset management, climate and sustainability, intelligent transport systems, crash testing, human factors, active travel audits, and delivery and servicing planning. TRL Software Limited is an affiliate company providing commercial licenses for TRL's award-winning software products, with traffic software supporting over 400 cities worldwide. TRL also serves as the appointed PAS 2161 Approvals Auditor for the UK Department for Transport. The portfolio is delivered through expert teams of software developers, researchers, scientists, engineers, and specialists collaborating with clients in over 100 countries.

Differentiator

Problem solved

Functional benefit

Products and services

• iRAP Star Rating (joint service with Gaist) Road safety assessment joint service that codes 50+ road safety features from panoramic imagery, calculates risk scores across 100m road sections, and produces 1-to-5-star ratings and Safer Roads Investment Plans (SRIPs). Sold to local authorities, National Highways and international clients across 100+ countries.
• iROADS Asset Management Software Proprietary asset management software for road and rail infrastructure management, supporting pavement management, network-level asset data collection and maintenance strategy development. Used by clients globally and licensed via the dedicated TRL Software sales line.
• Road Marking Collector Mobile imaging device using LED cameras mounted on survey vehicles to assess visibility and completeness of road markings at traffic speed under all lighting conditions. Overcomes limitations of previous-generation assessment devices.
• Highways Maintenance Assessment Tool (HMAT) Decision-support software that assesses the wider economic benefits of road maintenance, supporting cost-benefit and multi-criteria analysis for infrastructure investment decisions; automates the assessment of economic benefits of maintenance interventions.
• SCOOT8 AI (Urban Traffic Control) AI-powered intelligent traffic signal control system that optimises traffic flow in real time, delivering measurable improvements in congestion management and emissions reduction. Licensed through TRL Software.
• TRL Software (suite) Award-winning suite of transport and highways management software products, including iROADS, road safety tools and traffic management software; marketed and licensed via TRL Software Limited, with deployment supporting traffic software solutions in over 400 cities worldwide.
• Safety Cases for Automated Vehicle Technology Trials Independent safety case development and review for on-road automated vehicle trials in the UK, anchored to BS PAS 1881 (authored by TRL) and covering operational design domain, risk assessment, route selection, monitoring, compliance and insurance.
• TRL Living Lab Real-world connected urban testbed in London (Royal Borough of Greenwich and Stratford/Queen Elizabeth Olympic Park) with 24km of monitored roads, 5G spectrum coverage via Virgin O2, control room, garage and workshops, EV charging and two AV test vehicles. Hired by industry clients for CAV and smart city trials.
• PAS 2161 Approvals Auditor Independent approval service appointed by the UK DfT to assess and approve road condition monitoring technology providers against PAS 2161 requirements, supporting evidence-based asset management across England's highway network through 2030.
• Infrastructure Asset Management Consultancy Consultancy services helping road and rail customers manage asset inventories, collect asset data, maintain safety and performance standards, undertake asset valuation and minimise risk, including surveys, investigations, implementation and training. TRL helped develop the World Bank HDM-4 model.
• Climate Change and Sustainability Services Advisory services helping public and private sector clients address carbon reduction, air quality, resource management, noise reduction and climate change adaptation, including weather resilience assessments, transport emissions measurement, winter roads maintenance and low emission zone advisory.
• Transport Safety Consultancy Road safety research, recommendations and advice covering the Safe System approach, road safety audit, education, campaigns and training. Includes iRAP Centre of Excellence technical assistance to governments and commercial organisations.
• Safety and Crash Testing Transport safety research and testing for R&D, regulatory compliance and collision investigations, including automotive product testing advice, pedestrian impactors (Legform and Flex PLI), helmet safety, micromobility testing and rail safety advice.
• Intelligent Transport Systems (ITS) Research and Consultancy Research and consultancy on connected vehicle services, autonomous vehicles, intelligent traffic management and smart city transport technology deployment; includes contributions to the Manual for Smart Streets and collaboration with Zenzic on CAM TestbedUK.
• Active Travel Audits Audit services that help local authorities, landowners and developers make cities, towns and villages safer and more accessible for diverse users and micromobility modes, including assessments of side road zebra crossings and active travel infrastructure.
• Delivery and Servicing Plans Consultancy identifying air quality, economic and operational efficiency opportunities for businesses related to freight and servicing activities, including consolidation of orders, delivery timing optimisation and low-emission vehicle adoption.
• RAIDS Collision Research Services Collision data collection and analysis service operated by TRL on behalf of the Department for Transport, feeding recommendations back into vehicle design, driver assessment and road design safety improvements.
• Human Factors and Behavioural Science Applied human factors and behavioural science expertise in transport safety, covering driver behaviour, hazard perception and the impact of technology on road user performance. Includes the UK driver hazard perception test which TRL designed.
• Investigations and Expert Witness Services Accident investigation and expert witness services, including collision recreation as part of police or legal investigations and provision of independent expert testimony in court proceedings.

Quantifiable outcome

• 96% of travel on National Highways network achieved on 3-star or better roads (surpassing the 90% target) through iRAP methodology
• +3 more outcomes

Named customers11 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability12 records

Feature6 records

Partnerships

Ten partnerships are on record, tiered core and minor.

• Buro HappoldcoreStrategic or Co-development Partner · 17 October 2024TRL and Buro Happold announced a strategic partnership to collaborate on UK road and rail infrastructure projects. The partnership combines TRL's research expertise with Buro Happold's engineering and consultancy capabilities to deliver innovative solutions focused on sustainability, resilience, and operational efficiency for integrated transport and mobility networks.
• Gaist SolutionscoreStrategic or Co-development PartnerTRL and Gaist Solutions operate a unique joint service for iRAP Star Rating assessments. Gaist provides panoramic, high-resolution road imagery (covering approximately one-third of all UK local network roads in its data bank). TRL provides the iRAP Centre of Excellence modelling expertise and training. The partnership enables cost-effective road safety assessments with savings achievable by re-using existing Gaist imagery.
• StratosminorGTM or Marketing PartnerTRL partnered with strategic creative agency Stratos to develop its first major brand identity update in over a decade, introducing the 'Shaping Transport' strapline. Stratos is credited with creating a modern, confident brand reflecting TRL's global influence and future vision.
• NissancoreStrategic or Co-development PartnerNissan led the evolvAD autonomous driving consortium (funded by the UK's £100m Intelligent Mobility fund), with TRL participating in safety case development and related research. The Living Lab was used for Nissan AV trials. The project concluded in 2026 after 21 months and 16,000 autonomous miles with zero accidents, demonstrating CAV deployment in complex urban and rural UK environments.
• Consortium: Cisco, DG Cities, London Legacy Development Corporation, Cubic, Loughborough University, Transport for LondoncoreStrategic or Co-development PartnerThe Smart Mobility Living Lab (now TRL Living Lab) was designed and built by a consortium co-funded by industry and the UK Government via the Centre for Connected and Autonomous Vehicles and InnovateUK. The consortium brought together TRL, Cisco, DG Cities, London Legacy Development Corporation, Cubic, Loughborough University, and Transport for London to create the world's most advanced urban connected testbed.
• ATRO E&M and Teclab Limited (Joint Venture)coreStrategic or Co-development PartnerTRL is leading the pre-feasibility stage of the Uganda DUCAR project in a Joint Venture with ATRO E&M (for condition and topographical surveys) and Teclab Limited in Uganda (for geotechnical investigations). The project covers approximately 85,000km of roads and 800 bridges across 77 District Local Governments, with knowledge transfer built into the engagement.
• National HighwayscoreStrategic or Co-development PartnerTRL works extensively with National Highways on road safety research, suicide prevention on the Strategic Road Network, iRAP Star Rating assessments, pavement testing, and driver facilities programmes. National Highways is a repeat client commissioning research across multiple transport safety and infrastructure areas.
• Ateneo de Manila University BUILD / TRL (Philippines)minorStrategic or Co-development PartnerAteneo de Manila University's Business Insights Laboratory for Development (BUILD) and its initiative Ateneo Technical Resource Lab (TRL) received approval from DICT and PSA to access and demonstrate the Philippine National ID verification environment through the E-Verify KYC Extension. TRL supported digital public infrastructure adoption in the Philippines.
• Department for Transport (DfT)coreStrategic or Co-development PartnerTRL was appointed by DfT as the PAS 2161 Approvals Auditor for road condition monitoring technologies across England through 2031. TRL also regularly supports DfT on policy research, AV trials guidance, and transport safety standards.
• European UnionminorStrategic or Co-development PartnerThe European Union co-sponsored the AI in Transport training workshop delivered by TRL in Türkiye alongside the Ministry of Transport and Infrastructure, supporting Türkiye's net zero ambitions through AI adoption in transport.

Scale indicators7 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Ricardo plc: UK-headquartered engineering consultancy and testing firm with automotive, transport, energy, and safety practices. Highly comparable to TRL given shared heritage in automotive safety research, crash testing, vehicle certification, and transport consultancy for governments and OEMs.
• HORIBA MIRA Ltd: Automotive engineering, test, and certification specialist operating proving grounds and vehicle test facilities in the UK. Comparable to TRL for crash and safety testing, AV/CAV testbed operations, and automotive regulatory compliance work.
• Applus+ IDIADA: Spanish-headquartered automotive testing, certification, and engineering firm with a major proving ground. Directly comparable to TRL's safety/crash testing, ADAS/AV testing, and automotive product certification business serving OEMs and Tier 1s.

Broad incumbents

• AtkinsRéalis (formerly Atkins / SNC-Lavalin): Global engineering and project management firm with substantial transport infrastructure consulting. Competes with TRL on UK and international road/rail engineering, asset management, and intelligent transport systems but operates at significantly greater scale across multiple sectors.
• WSP Global: Global professional services consultancy with a large transport and infrastructure practice. Competes with TRL on road safety, asset management, smart mobility, and climate resilience advisory for government clients worldwide.
• AECOM: One of the largest global engineering consultancies with a deep transport practice covering highways, rail, intelligent mobility, and asset management. Overlaps with TRL on UK transport authority engagements and international development-funded road programmes.
• Mott MacDonald: International engineering consultancy with significant transport, highways, and asset management capabilities. Regularly competes with TRL on UK DfT and National Highways projects as well as World Bank-funded emerging-market road programmes.
• Arup: Global engineering and design consultancy with transport, smart mobility, and infrastructure asset management practices. Competes with TRL on UK and international transport planning, safety, and intelligent transport system work.

Others

• TÜV SÜD Auto Service GmbH:

Emerging players

• Connected Places Catapult: UK government-backed innovation accelerator focused on transport, mobility, and place-based innovation. Comparable to TRL on CAV, smart mobility, and intelligent transport system research for UK and international public-sector clients, though Catapult is grant-funded rather than commercial.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks4 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/transportresearchlabtrials
• LinkedInlinkedin.com/company/trl

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Subsidiaries2 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 TRL