AECOM

Carbon per million dollars of revenue. The legacy industry-standard reference (CDP, MSCI). Useful for cross-sector context, but distorted by margin — high-margin firms appear artificially efficient. Read alongside the operational and asset intensities for the full picture.

OpEx (operating expenditure) is the running cost of the business — staff, services, energy, materials. This shows how carbon-intensive operations are per million dollars of spend. Removes the margin distortion that revenue-based ratios introduce.

EVIC (Enterprise Value Including Cash) is the firm's total capital footprint — equity + debt + cash + minority interest. The EU's standard intensity measure (SFDR PAI 3) — answers: how much carbon does each million of capital deployed in this business produce?

PP&E (Property, Plant & Equipment) plus leased real-estate assets is the firm's physical infrastructure on the balance sheet. This shows the carbon intensity of that physical footprint — uses Scope 1+2+3 for consistency with the other headline intensities. Surfaces stranded-asset risk for asset-heavy firms.

Carbon per FTE (full-time-equivalent employee) — the diagnostic measure for people-leveraged businesses where headcount, not capital, drives delivery. Captures the office, energy and travel footprint per person.

• · CarbonPlan OffsetsDB

Scope 1 & 2 emissions reductions are driven by transitioning the automotive fleet to more fuel-efficient or electric vehicles and embedding green-lease criteria in real estate to improve utility data access and collaborate with landlords on renewable energy initiatives. Real estate energy surveys now cover 80% of AECOM's energy footprint. Within its ScopeX projects for clients, AECOM optimizes sources of renewable power and minimizes energy use.

Under the SBTi-validated net zero plan, AECOM commits to reducing all emissions 90% by 2040 (vs 2018) and offsetting remaining emissions in 2040 through high quality carbon removal projects. AECOM also maintained operational net zero status in fiscal 2024 through Scope 1 & 2 reductions and offsetting remaining emissions.

• Office energy / Scope 2 reductions

  Scope 2 (office purchased electricity and heat) reduced from 47,304 tCO2e in FY18 baseline to 18,610 tCO2e in FY25 — a ~61% reduction. Combined Scope 1+2 reduced 38% vs baseline including emissions intensity reductions on an NSR basis, on track with the Science-Based Target trajectory.

• Fleet decarbonisation

  Scope 1 fleet vehicle (mobile combustion) emissions were 26,247 tCO2e in FY25, modestly above the FY18 baseline of 25,010 tCO2e but down from 28,996 in FY24. Fleet remains a primary operational decarbonisation lever.

• Fleet vehicle (mobile combustion) decarbonisation

  Fleet vehicles remain the largest Scope 1 source at 26,247 tCO2e in FY25, up modestly from 25,010 in FY18 baseline but down from 28,996 in FY24. Refrigeration fugitive emissions remain small at 89 tCO2e.

• Business travel reduction

  Business travel emissions declined to 43,380 tCO2e in FY25, a 49% reduction vs FY18 baseline of 85,131 tCO2e and down from 51,466 in FY24. Significant contributor to Scope 3 reduction trajectory for a professional services firm.

• AI-enabled engineering efficiency (materials reduction)

  AECOM's AI for Engineering platform represents an opportunity to reduce up to 20% of project materials and deliver up to 6 times more efficiently, reducing embodied carbon through reduced rework and material waste. Backed by 200+ AI/ML PhDs and the Oscar proprietary LLM.

• Office energy efficiency (purchased electricity & heat)

  Scope 2 location-based emissions reduced from 47,304 tCO2e in FY18 baseline to 18,610 tCO2e in FY25 — a 61% reduction driven by reductions in both purchased electricity (37,176→14,510 tCO2e) and purchased heat (10,128→4,100 tCO2e) for office energy. Contributed to overall 38% Scope 1+2 reduction vs baseline.

• Office real-estate energy efficiency and green leases

  Quarterly performance reviews in each region; energy audits using real-estate energy survey covering 80% of energy footprint; embedding green-lease criteria to improve utility data access and collaborate with landlords on energy initiatives. Total emissions declined 20% vs FY18 baseline.

• Fleet vehicle electrification and efficiency

  Transitioning the automotive fleet to either more fuel-efficient or electric vehicles to drive down Scope 1 emissions from fleet vehicles.

• Office energy efficiency and real estate footprint optimization

  Scope 2 purchased energy emissions declined 52% from FY18 baseline (47,304 to 22,926 tCO2e). AECOM conducts energy audits using its real estate energy survey covering 80% of its energy footprint and embeds green lease criteria to improve utility data access and encourage collaboration with landlords on energy initiatives. Restructuring actions to align real estate portfolio with employee flexibility (Freedom to Grow) reduce overall office footprint.

• Fleet electrification and fuel efficiency

  AECOM is transitioning its automotive fleet to either more fuel efficient or electric vehicles. Scope 1 fuel combusted and fugitive emissions were 29,072 tCO2e in FY24, up 16% from FY18 baseline due to recalculation.

• Business travel reduction via Travel with Purpose program

  Travel with Purpose program targets a 50% reduction in business-travel emissions. Business travel emissions have already declined 40% since 2018, reaching 51,466 tCO2e in FY24 vs 85,131 tCO2e in FY18 baseline.

• Business travel reduction

  Business travel emissions declined 65% since 2018, falling from 158,182 tCO2e to 56,032 tCO2e in FY23. This is one of AECOM's largest operational decarbonization levers given the consulting business model.

• Office energy efficiency

  Increasing the efficiency of office spaces and extending sustainability guidelines for future office refurbishments and relocations as part of the Freedom to Grow program. Office real estate portfolio restructuring in FY23 also optimizes footprint.

• Fleet electrification

  Transitioning the automotive fleet to either more fuel efficient or electric vehicles, contributing to the 30% Scope 1 reduction from 2018 to 2023.

• Office real estate energy efficiency and Freedom to Grow

  Increasing the efficiency of office spaces, extending sustainability guidelines for future office refurbishments and relocations. FY2023 restructuring included $96.8M in real estate cost actions aligning portfolio with Freedom to Grow flexible work model (3 days/week in office).

• Fleet electrification

  Developing a roadmap to transition fleet vehicles to electric, including installing EV charging infrastructure at owned offices. As part of consolidating real estate, prioritising leased offices with EV chargers.

• Fleet decarbonisation to low/zero emission vehicles

  Decarbonizing all fleet vehicles is a stated commitment under the 2030 science-based net zero target. Includes improving efficiency of vehicles and investing in low or zero emissions vehicles over time.

• Office energy efficiency (Fast Forward Global Guidelines)

  Advancing environmentally sustainable offices through Fast Forward Global Guidelines: site selection considering energy use and sourcing, high-efficiency electrical equipment including LED and motion detector lighting, solar panels, and high-efficiency HVAC units. Multiple energy efficiency initiatives launched globally to reduce facility energy consumption.

• Business travel reduction via Travel with Purpose

  Implemented Travel with Purpose program to cut business travel by 50%, prioritising digital tools instead of travelling and, when necessary, sustainable modes (walking, cycling, public transport, zero-emissions vehicles). Business travel emissions fell from 158,182 tCO2e in FY18 to 32,919 tCO2e in FY21.

• Office energy efficiency and real estate consolidation

  Right-sizing office space, improving office energy efficiency, relocating to more efficient offices. Workplace of the Future and Freedom to Grow initiatives increased flexibility enabling further real estate consolidation. Sustainability guidelines designed for future office refurbishments and re-locations.

• 50% reduction in business travel

  Implementing a 50% reduction in business travel as a core Sustainable Legacies commitment. 'Travel with Purpose' guidance prioritises digital tools over physical travel; when travel is necessary, prioritises walking, cycling, public transport and zero emissions vehicles. In March 2020 all business travel was suspended due to COVID-19, with 90% of employees working remotely by Dec 2020.

• ScopeX client-project decarbonisation

  ScopeX is AECOM's integrated approach to decarbonising the built environment, aiming to reduce embodied and operational carbon by at least 50% versus industry norms on major projects. Certified to PAS 2080, applied on Transpennine Route Upgrade (UK), CTrides (Connecticut DOT), and BBC Workplace Building Portfolio. Implemented an industry-leading workflow to identify and reduce waste on most carbon-intensive construction projects.

• Purchased goods & services supplier engagement

  Purchased Goods & Services is by far AECOM's largest emissions category (1,479,003 tCO2e in FY25, ~93% of total). AECOM supports its top 50% carbon-emitting suppliers to reduce their emissions through its Supplier Engagement Program — the central lever for Scope 3 reductions.

• Supplier engagement program (purchased goods & services)

  Purchased Goods & Services is AECOM's largest Scope 3 category at 1,479,003 tCO2e in FY25 (down from 2,058,962 in FY18). AECOM operates a Supplier Engagement Program targeting its top 50% carbon-emitting suppliers to help them reduce emissions.

• ScopeX — client project decarbonisation (embodied & operational carbon)

  ScopeX is AECOM's integrated approach to decarbonizing the built environment, focused on reducing embodied and operational carbon by at least 50% compared to industry norms on major projects. Guided by the ScopeX Decarbonization Policy and certified to PAS 2080, it covers materials, site selection, logistics, and construction methods. Implemented an industry-leading workflow to identify and reduce waste on most carbon-intensive construction projects. Deployed on Transpennine Route Upgrade (UK), CTrides (Connecticut DOT), and BBC Workplace Building Portfolio.

• Supplier Engagement Program for Scope 3 purchased goods & services

  Supply chain emissions have declined 19% since 2018. Suppliers asked at onboarding to provide sustainability data and targets; over time these become standard in procurement with requirements set for top emitters. Supplier Engagement Program supports top emitting suppliers in their carbon reduction journey.

• ScopeX in client projects: decarbonizing the built environment

  ScopeX considers materials, site locations, logistics, and construction methods to reduce/eliminate a project's impact on the natural environment. Achieved PAS 2080 certification in 2024. Considered AECOM's biggest contribution to ending the climate emergency by decarbonizing the built environment and supporting clients' net-zero agendas.

• Supplier engagement program for Scope 3 purchased goods & services

  Supply chain emissions have declined 19% since 2018. AECOM is embedding low carbon and sustainability considerations into procurement processes. During onboarding, suppliers are asked to provide sustainability data and targets, helping identify those needing more engagement. The Supplier Engagement Program aims to support top emitting suppliers in their carbon reduction journey.

• ScopeX client project decarbonisation

  AECOM's ScopeX is a first-of-its-kind approach with the goal of substantially reducing carbon impact on major client projects, considering materials, site locations, logistics, and construction methods. ScopeX was PAS 2080 certified in fiscal 2024 — among the only global programs to achieve this standard. AECOM views ScopeX as its biggest contribution to ending the climate emergency by decarbonizing the built environment for clients.

• Supplier engagement program for value-chain decarbonization

  Supply chain emissions (purchased goods & services + capital goods) declined 19% since 2018. AECOM is building on this with an expanded supplier engagement program, reaching out to the top 80% of suppliers by emissions to support them in setting targets and their own decarbonization efforts.

• Client decarbonization via ESG Advisory and ScopeX

  AECOM's ESG advisory practice grew at a double-digit pace, with revenue from projects with an ESG-embedded service up more than fourfold in fiscal 2023. ScopeX approach considers materials, site locations, logistics, and construction methods to reduce and eliminate a project's impact on the natural environment—targeting decarbonization of the built environment via client work.

• Supplier engagement on decarbonization

  Expanded supplier engagement program reaching out to top 80% of suppliers by emissions to support them in setting targets and their own decarbonization efforts. Supply chain emissions (Cat 1+2) reduced 19% since 2018.

• ScopeX client project decarbonization

  ScopeX is AECOM's first-of-its-kind approach to substantially reduce carbon impact on major client projects. Considers materials, site locations, logistics, and construction methods to reduce/eliminate a project's impact on the natural environment. Embedding net zero, resilience, and social value targets into client account management. Revenue from projects with ESG-embedded service up more than 4x in fiscal 2023.

• Supplier engagement on supply chain emissions

  Acknowledging the majority of emissions are in supply chain (~96% per FY21 inventory), engaging most significant suppliers to understand their decarbonisation roadmaps and tracking progress. Sustainable Procurement Policy embeds emissions reduction in supplier onboarding. Supplier Engagement Strategy launched to develop carbon-reduction targets in partnership with suppliers.

• ScopeX™ client project carbon reduction

  ScopeX™ is AECOM's platform to reduce carbon across planning, design and construction projects, targeting at least 50% carbon reduction (embodied + operational) versus industry norms on major projects. AECOM estimates ScopeX™ has capability to design out at least 84 million tons of CO2 from the built environment per year — addressing client-side / value-chain emissions enabled by AECOM's services.

• Supply chain carbon reduction targets

  Partnering with supply chain to develop their own carbon reduction targets. Working hard to reduce supply chain emissions by improving accuracy of emissions data reporting, regularly collecting supplier emissions data and target information, and collaborating with suppliers to set leading targets. Environmental sustainability and ESG embedded into procurement processes. Supply chain accounts for vast majority (~96%) of footprint.

• ScopeX™ - 50% carbon reduction on major client projects

  First-of-its-kind initiative to reduce carbon across the entire project life cycle. AECOM asks teams globally involved in all major projects to incorporate an ESG action plan that, if chosen by the client, will reduce carbon impacts by at least 50%. ScopeX considers materials, site locations, logistics, and construction methods. Stated as AECOM's biggest contribution to ending the climate emergency.