AECOM is a global provider of professional services to a broad range of markets. With approximately 85,000 employees, we have a community of over 9000 environmental consultants sharing expertise, leading-edge technology and best practice to deliver excellent project solutions for our clients. We work alongside clients to integrate environmental concerns into decision making to protect the environment, enhancing it for future generations.

Featured services

Air management

AECOM’s Air Quality practice consists of over 30 specialists in the UK. We also draw on the knowledge and expertise of over 500 professionals globally. We provide a complete range of services including: emissions/GHG inventories; emissions modelling; ambient monitoring; dispersion modelling; odour, dust & bioaerosol assessment; construction management plans; environmental permitting; BREEAM; indoor air quality; occupational exposure; and expert witness. Our clients include oil and gas, energy, industrial, government, utilities, waste, mining, transportation and real-estate.


AECOM has one of the largest integrated heritage teams in the UK offering specialist consultancy services in archaeology, historic landscape and townscape, built heritage and conservation. From site selection, planning and expert witness to mitigation design and site management, AECOM is involved in many of the highest profile infrastructure and development projects in the country.

Due diligence/auditing

Over 30 years of multi award-winning environmental, safety & social due diligence experience with technical engineering expertise of one of the World’s largest engineering design firms, to provide a one-stop comprehensive assessment of buildings & industrial plant & equipment condition, design & operation. Our holistic technical expertise, global responsiveness & commercially-focused reports allows our clients to assess liabilities during purchase, reduce operational & legislative costs, preparing assets for sale, facilitating maximum return on investment & protecting our clients’ reputations.

Ecology/land management

AECOM has one of the largest, most experienced teams of in-house ecologists in the UK. We cover terrestrial, freshwater and marine environments, supporting our clients through planning, design, asset management, monitoring and research. We provide expert, pragmatic and proportionate advice across all development project stages from site selection and acquisition, through planning applications and EIA, detailed design of mitigation, compensation and enhancement measures, and operational site management.


Under AECOM’s Design, Build, Finance & Operate Strategy (DBFO) a full Environmental Contracting offer is being developed. This offer covers the delivery of fully integrated solutions in the areas of water, landscape, ecology & habitat creation, invasive species control and archaeology.

Geotechnical investigation

AECOM provides comprehensive ground engineering solutions. Our geotechnical specialists work in a multi-disciplinary environment to help our clients manage ground risks through robust geological modelling & appropriate investigation and analysis, allowing us to produce efficient designs for retaining walls, foundations and earthworks. We have particular strengths in ground improvement & materials re-use by conditioning thereby saving cost, time and enhancing sustainability. Our work routinely includes desk studies, site investigations, field testing and analysis, interpretation and reporting.

Impact assessment (EIA/SEA)

AECOM is one of the eight founding members of the Institute of Environmental Management and Assessment’s Quality Mark. We are a global leader in EIA with one of the strongest track records in the management and delivery of complex EIA projects. We provide solutions to ensure our clients get their projects consented, built and operated according to all environmental, social and business requirements. Those clients come from a range of sectors including oil and gas, energy, industrial, utilities, mining, transportation and real-estate.

Landscape management

AECOM provides specialist, integrated consultancy and delivery of landscape management services. We operate at all scales from single sites to major land holdings, including audits, strategies and plans for long-term management, contract administration and monitoring. Our landscape practice, is one of the largest, most diverse in the UK. We develop and deliver innovative and cost-effective solutions to complex problems through our teams of specialists, including bespoke database and mapping systems, Invasive Non-Native Species (INNS) and re-vegetation strategies and remote sensing technologies


AECOM’s Acoustics and Vibration Group of 50 consultants provide sound, noise and vibration support to our clients across the life cycle, from project concept, through planning and design and throughout operation such as for compliance, site expansion and decommissioning. Work includes strategic noise mapping, auralisation, impact assessment, prediction and measurement / monitoring, occupational noise and vibration assessment; building and architectural acoustics.

Nuclear services

AECOM is one of the largest environmental and ground engineering consultancies in the UK providing specialist services the nuclear industry including: Environmental Impact Assessment, Development Consent Order Management, land quality related strategy development, design and implementation of investigations of radioactive and non-radioactive contamination of ground and groundwater, design and implementation of hydrogeological investigations, radiological, human health and environmental risk assessments & remediation works for ground/groundwater contamination.


AECOM provides clients around the world with a full range of remediation solutions to manage liabilities associated with contaminated soil, groundwater, sediments and infrastructure. Our largest global practice area, our services range from Remediation Consulting and Engineering to turnkey Remediation Construction, Demolition and Deconstruction, and Site Restoration integrating Sustainable and Green Remediation practices throughout the process.


AECOM’s Geospatial and software development team support clients from a range of sectors. We use all major industry leading GIS software, including open source applications. The key services we offer include application development (WebGIS, analytical & reporting systems (desktop and web), mobile applications & ETL tool creation), mapping and analysis (mapping and cartography, spatial analysis and modelling, earth observation/ remote sensing and 3D/ visualisation) and data acquisition and processing (database design and development for desktop, web and GIS, data management and data capture).

Stakeholder relations/partnerships

Our team successfully delivers communication, engagement and relationship management services for a number of high-profile policy initiatives, infrastructure projects and environmental initiatives. Our role is to build understanding of proposals with all stakeholders, seek their views in a timely manner and, where possible, develop consensus. We engage and build effective working relationships with local authorities, land/property owners, technical stakeholders as well as businesses, local communities, locally elected representatives, specialist interest groups and the media.

Strategic environmental assessment (SEA)

We have one of the UK’s most experienced SEA teams and can assist public sector organisations in achieving improved plan-making and environmental protection by meeting their legal obligations under SEA legislation. Our experience covers all sectors and administrative requirements including: national level strategies, local authority development plans, marine spatial plans, energy strategies, transport planning, flood defense, oil & gas licensing and more.

Waste & recycling

AECOM’s Waste and Resources team provide an effective level of service to maintain public health and introduce state-of-the-art recycling technology. AECOM works with our clients to truly understand their needs, ensuring we provide solutions that are appropriate to the particular economic, social, regulatory and environmental conditions of the countries and regions where we work. Our services range from providing high level advice to Government and financial institutions on procurement and policy issues, through to construction supervision of individual facilities throughout the world.

Active services

Services/specialisms by percentage of recent turnover
Air management4
Due diligence/auditing3
Ecology/land management6
Energy/climate change2
Environmental law/compliance1
Environmental management systems (EMS)1
Environmental risk assessment2
Environmental/CR reporting2
Expert evidence/witness3
Geotechnical investigation7
Health & safety1
Impact assessment (EIA/SEA)12
Landscape management3
Master planning2
Mergers & acquisitions2