Sustainability at Zühlke: our journey

In 2025, our total greenhouse gas emissions were 8,628 tCO2e - an increase of 399 tCO2e compared to 2024. This rise was primarily driven by higher business activity, including increased spend on purchased goods and services, and a rise in business travel and employee commuting as in-person collaboration continued to grow.  Scope 1 emissions remain low and stable. Scope 2 emissions have been significantly reduced through our transition to 100% renewable electricity. The largest share of our footprint remains in Scope 3, where we continue to focus our reduction efforts - particularly through supplier engagement and more sustainable procurement.  We recognise that reducing emissions in a growing business requires sustained effort. We remain committed to transparent reporting and to taking practical steps to reduce our impact in line with our science-based targets.

At Zühlke, we focus first on reducing our emissions across scopes 1, 2, and 3. Key carbon reduction initiatives include:

• Renewable electricity: We continue to transition to renewable energy sources across our locations. Where we are not able to use renewable electricity, we purchase Energy Attribute Certificates (EACs). We have now achieved 100% renewable electricity usage across all our locations for two consecutive years using these combined methods.
• Resource efficiency: We are evaluating our energy, water, and waste efficiency to understand where and how improvements can be made to reduce unnecessary or wasteful resource consumption. We promote responsible procurement and circular economy principles.
• Office utilisation: We’ve evaluated our ways of working and have a roadmap to reduce unused office space by subletting floors or downsizing.
• Responsible travel: We have transitioned away from combustion vehicles in our fleet. We take a technology first approach over face-to-face meetings and we encourage emission conscious business and commuting travel wherever possible.
• Data-driven decarbonisation: In 2025 we completed a comprehensive recalibration of our greenhouse gas accounting methodologies covering 2021-2024, in collaboration with our external partner Furthr. This work improved data accuracy, refined our organisational boundaries, and standardised the treatment of key Scope 3 categories - giving us a more reliable foundation for tracking progress towards net zero.

To address our remaining emissions, we invest in projects that protect nature, and fund technologies that drive carbon reduction and remove emissions from the atmosphere. Find out more on the projects we have invested in with our carbon mitigation partner Furthr, here.

We recognise the importance of preserving and protecting our planet’s resources for present and future generation. Zühlke has adopted an Environmental Policy that guides our actions to conserve resources, reduce carbon emissions, and avoid waste.

We also have an Environmental Management System certified according to ISO 14001:2015.