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Aon's ESG
Impact Report

Better Decisions for a Better World

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A Message from our CEO

I am proud to share Aon’s Environmental, Social and Governance (ESG) Impact Report for 2022.

Our firm exists to shape decisions for the better — to protect and enrich the lives of people around the world. Now more than ever, resilience and growth are dependent on business leaders taking action to respond to global challenges and opportunities and our aim is to help businesses thrive while ensuring the communities they serve and the people they employ flourish.

At Aon, we measure our impact through an ESG lens, both by how we operate our firm and the market-leading solutions we deliver to meet our client’s growing needs. The reality is that helping our clients address risks now associated with ESG issues has long been a central focus of our core business. From helping clients assess the ongoing impacts of climate on their (re)insurance portfolios to delivering solutions that improve employee physical, financial and overall wellbeing our firm enables our clients to meaningfully address their ESG risks in a way that protects and grows their business, and benefits society.

Our Aon United strategy also drives better solutions and better outcomes for our clients and our firm. Aon United is designed to identify and deliver the best solutions from across our firm to clients — and our comprehensive strategic advice, industry knowledge and targeted solutions can help solve our clients’ biggest challenges — especially those related to their ESG risks. Assessments and diagnostics, including solutions like our Digital Business Insights Platform and ESG diagnostics for due diligence, allow us to quantify and prioritize the most relevant risks for each client.

As an example, the risk of impact from climate to our global economy and society is massive and rapidly growing, which is driving one of the largest reallocations of capital in history to spur innovation, protect communities, and reduce risk. At Aon, we see this as an opportunity to build on our proven record of innovation to bring solutions — like catastrophe bonds that can quantify, mitigate and transfer climate-related physical risks to protect assets and build resilience. Similarly, we see great opportunity to apply traditional and innovative solutions to the challenge of climate much in the way we have created the opportunity for innovative companies in the green tech space to leverage the value of their Intellectual Property portfolios to access non-dilutive growth capital to accelerate their ability to bring solutions to the market. We have also facilitated insurance for nature-based carbon efforts.

As we look forward and continue our long-term commitment to help our clients address essential risks, we see significant opportunity to build on this progress and increase the overall impact of our firm. And we are confident that if we take the path toward innovation, collaboration, and building a more resilient future we will have turned the challenges in front of us today into opportunities that will deliver a better tomorrow.

Thank you,

Greg Case
CEO, Aon plc

A Message from our Head of ESG

Thank you for reading Aon’s 2022 ESG Impact Report. This ESG report is about what we do as a firm and what we do for clients. I’m delighted to share the progress we’ve made against our long-term commitments and our strategy. These commitments are fully consistent and deeply embedded in Aon’s overall strategy and require the help and support of our full firm to deliver — just as we saw throughout the year. This year, we continued to drive progress on our ESG strategy, as we moved forward with our core commitments and advanced new initiatives to support long-term goals:


We are committed to achieving net-zero carbon emissions by 2030. In 2022, our emissions were 453,520 tons of CO2 equivalent (CO2e), a reduction of 4% from 2021 and 16% from our starting 2019 baseline.* We continue to reduce our total footprint through key drivers of travel, commute, real estate, investments and our supply chain. Many of these reductions are made possible by Aon Business Services and our flexible Smart Working strategy, and we’ve found that these efficiencies not only reduce our carbon footprint but also improve employee wellbeing and client service.


Our colleagues are at the heart of everything we do, and our Aon United strategy is designed to attract, retain, develop, reward, and support our people. Inclusion and diversity (I&D) remain an essential part of our culture, and we continue to take steps to embed I&D principles and practices throughout our organization. We hold ourselves accountable to this commitment with a dedicated I&D sub-committee of the Board, increased transparency on our human-capital management strategy and outcomes, and the inclusion of our I&D goals within our executive compensation structure. We aim to reflect our values and social commitments in our work with clients, business practices, community involvement and philanthropic efforts.


We remain committed to the highest ethical and compliance standards and design our governance structures to inform business decisions and improve the way we serve our clients efficiently and effectively. Aon’s colleagues and leadership continue to work across the firm, with partnership from management-led risk and product governance committees, to inform decision-making processes and build better decisions for our firm and clients. This year, we conducted a firmwide ESG risk assessment, in alignment with our overall enterprise risk management process. In addition, our Board of Directors reviewed ESG and climate risks, as part of their oversight of risk management. This oversight includes ongoing review of cyber security, data security and data privacy matters, an area in which we added new director expertise in 2022.

We made significant progress in 2022 and we look forward to continuing to build on this progress in 2023 – as we raise the bar on our impact for clients, colleagues and all stakeholders.

Thank you,

Leslie Follmer
Head of ESG and Investor Relations, Aon plc


* Information and data presented in this report with respect to Aon’s greenhouse gas emissions is not subject to a third party audit. Aon’s 2022 greenhouse gas emissions data is preliminary and subject to ongoing internal data verification. Aon expects to publish final 2022 greenhouse gas emissions data in its 2023 CDP disclosures.


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