Scope
1
–
Actions
With around 17,500 vehicles across the globe, our fleet is by far the
largest carbon emission source within Scope 1. We plan to reduce Scope 1
emissions through two decarbonisation levers.
Switching to low-emission or zero-emission vehicles
To reduce our combustion of fossil fuels, we are committed to replacing
diesel and petrol vehicles with low- and zero-emission alternatives. This
includes hybrid and fully electric vehicles, and we are also exploring
emerging technologies such as hydrogen fuel cells.
We acknowledge that achieving our 2030 Scope 1 targets depends on several
external factors beyond our direct control, including the availability of electric
vehicles for commercial use and adequate charging infrastructure. As electrical
vehicle and battery technologies continues to evolve rapidly, it would be
imprudent to base our 2030 strategy solely on current technology. While this
creates a degree of risk to our target delivery, we remain confident that future
technology advancements will enable realistic achievement of our target.
Operating expenses for our decarbonisation journey mainly relate to
central and local people resources that drive and manage decarbonisation
activities. While these responsibilities are typically embedded in broader
operational or business responsibilities, our Global Climate Impact team –
supported by country decarbonisation managers and central supply chain
resources – includes fully or partially dedicated roles. A not insignificant
portion of our 2025 CapEx relates to transition of our vehicle fleet to
electric. As we progress, emission-neutral vehicles will account for an
increasing proportion of vehicle-related CapEx.
Instilling low-emission driving through training
Complementing the fleet transition, we are rolling out training
programmes to instil efficient and low-emission driving techniques
among our drivers. This includes promoting smooth acceleration, steady
speeds, and proper vehicle maintenance to reduce fuel consumption and
emissions. While we expect the emissions reductions from this initiative
to be minor, we believe behavioural change in our own organisation is a
crucial step in a holistic and successful green transition.
Scope 1 – Progress on targets
Complementing the fleet transition, we are rolling out driver training
programmes to promote efficient, low-emission driving techniques,
including smooth acceleration, steady speeds, and proper vehicle
maintenance. While the expected emission reductions are minor, we
believe behavioural change within our organisation is a crucial element of
a holistic and successful green transition.
Scope
2
–
Actions
Our Scope 2 emissions make up less than 1% of our total emissions and
primarily relate to our corporate buildings where management and our
support staff work. We plan to reduce Scope 2 emissions through two
decarbonisation levers.
Switching to renewable energy
As improving efficiency can only take us so far, ISS is also conscious of how
we purchase energy.
ISS consumes energy in our buildings and for our electric vehicles, and as we
transition our fleet from conventional to electric vehicles, we expect our energy
consumption will increase. To reduce our Scope 2 emissions, we recognise that
we will need to procure a greater share of renewable energy. ISS is sensitive to
the cost impact and availability of renewable energy across our global markets.
Where available, we assess the price point and cost difference between
renewable and non-renewable energy. As the price point becomes narrower
over time, we expect to be able to increase our purchasing of renewable energy.
Improving energy efficiency
We do not expect that activity levels or user behaviour will materially
change within our corporate buildings, which means that consumption
reduction must come from upgrading or improving the building
environment, primarily through improving energy efficiency.
As we generally lease our corporate buildings, these improvements
rely heavily on ISS engaging with our landlords to upgrade the building
environment and equipment, such as lighting and temperature control.
In 2026, we will seek to establish a local approach reducing energy-related
emissions, for example, through engagement with our landlords or our
energy procurement approach. This may include requirements for buildings to
transition away from fossil fuels used onsite or to commit to a Net Zero target.
Scope 2 – Progress on targets
Due to our initiatives, we have reduced Scope 2 emissions by 19% against
our 2019 baseline and remain committed to expanding renewable energy
sourcing and engaging landlords to meet our targets.
Despite our Scope 2 decarbonisations efforts, focus on improving energy
efficiency and various switches to renewable energy, market-based
emissions have increased by 12% in 2025 compared to 2024. In 2025,
25% of the energy we purchased was from renewable sources, up from
18% in 2024. We aim to increase this number in 2026 to help us meet our
emissions reduction targets.
Scope
3
–
Actions
Our Scope 3 emissions (approximately 97% of total emissions) can roughly
be split into six areas:
Food (category 1)
Cleaning detergents and materials (category 1)
Subcontracting (category 1)
Employee commuting (category 7)
Service delivery (category 11)
Other (categories 1 (not included above), 2, 3, 4, 5, 6, 12 and 15).
With the exception of employee commuting and other, we reduce emissions
through three strategic pathways, that guide the six key decarbonisation levers
targeting Scope 3 emissions.
1.
Decarbonising our supply chain by reducing the emission intensity
of consumables, equipment, and assets used as part of our service
performance. This includes sourcing lower-carbon materials and
engaging suppliers to improve their environmental performance.
2.
Driving efficiency within our own operations by optimising the use and
application of consumables, equipment, and assets, thereby minimising
waste and energy consumption.
3.
Seeking to influence downstream behavioural change by working with
customers and end-users to reduce consumption patterns, particularly
in areas such as food services where end-user choices significantly
impact emissions.
Food and food waste
Emissions related to food constitute a significant portion of our Scope
3 emissions, with dairy and ruminant meat consumption being primary
contributors. We actively encourage our food suppliers to pursue carbon
reduction opportunities through optimising sourcing and logistics
processes and introducing low-emission products. Our food and catering
specialists are continuously innovating to develop sustainable practices
and recipes, such as exchanging meat with plant-based alternatives, within
the boundaries set by our customers. A simple example is switching to
plated servings from buffet style servings, which has proven effective in
reducing food waste and associated emissions.