World-leading thought and action on climate and sustainability
How could you thrive in a sustainable world?
We help organisations of all sizes to understand the issues, measure their impact and take action. We help you engage with the challenges and with everyone you need to help you.
We don't just follow standards, we push them higher for ourselves, our clients and the business world. We are world leaders in measuring supply chain carbon footprints and big picture assessments of sustainability.
Don’t come to us for box-ticking - our top priority is always the planet. We'll be by your side to help you go further than you imagined.
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If you need help calculating your carbon footprint using the most in-depth and custom research, or you want to explore the many ways you could become truly sustainable, our expert team will give you evidence-based assessments and show you how to take impactful actions.
We calculate the carbon footprint of your operations and your supply chains. Our leading carbon tools set science-aligned targets and carbon reduction actions.
We look at your full impact on a sustainable planet, and help you imagine the way you could be in the future - thriving in a low carbon world.
We estimate carbon budgets for landscapes, combining carbon from residents and visitors with land use emissions and carbon sinks.
We've counted the carbon in all kinds of industries
We have over 20 years of experience working with organisations from telecoms and finance to manufacturing and retail. We know the emissions in everything from an email to a pair of trainers.
We've also got expertise and a research background in looking at food and land. We've measured the carbon footprint of a tub of ice cream and a whole National Park.
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Small World's global impact
We're proud to work with companies like Cogo, Ecologi and Sage, which use our data to help 1000s of businesses and individuals measure their carbon footprint, the first step in taking action to reduce it.
Our work with clients like BT Group is helping it lead the way in low-carbon telecoms. And helping the team at AMRC to think big about sustainability has them leading the whole of UK manufacturing to a sustainable future.
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“ The work and methodology applied by the Small World team is probably some of the most refined and rigorous in the corporate GHG reporting landscape.”
Matt Manning, Head of Circularity and Net Zero, BT Group.
Led by Prof. Mike Berners-Lee, our team of consultants bring a wide background of research and experience to our carbon and sustainability work.
Our mission is to help you be part of a truly sustainable future. How working with us will push you to make the biggest positive impact on the planet possible.
Our research feeds into our work with clients, policy and wider communication around climate, carbon measurements and sustainability.
News and resources
Sage, SWC and the British Business Bank launch Carbon Commons
Carbon Commons is a course correction for carbon accounting. It enables a practical, realistic, robust, comparable and complete carbon accounting of all.
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By overcoming the inconsistencies found in current carbon accounting methods it gives a consistent way to measure products, services and organisations across supply chains.
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Carbon Commons aims to make tens of thousands of hybridised emissions factors available to as wide an audience as possible through an open-source platform, overseen by a robust governance framework.
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Launched at London Climate Action Week in June 2025 with our partners Sage and the British Business Bank.
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News and resources
SWC MRIO v2.0 free download
We've updated our popular SWC MRIO (Multi-regional Input-Output model) to provide you with emissions factors from your spend data, new versions released December 2024.
FREE version now updated to 2022 factors
Basic version with licence: 2023 factors and 6 countries.
Pro version with licence: 2018-2023 factors, 75 countries and full suppliers' Scope 1, 2 and 3 breakdown.
We also have best practice guides for using MRIO in supply chain emissions assessments and to hybridise MRIO with Life Cycle Analysis.